Monday 16 February 2009

Injury Vol 40 Issue 1 2009

Radiological aspects of injuries of avalanche victims
Pages 93-98
Marius C. Wick, RĂ¼diger J. Weiss, Matthias Hohlrieder, Katja Tecklenburg, Werner Jaschke, Michael Rieger

Sunday 15 February 2009

Articles from Critical Care medicine

Link to journal online
Bodenstein, Marc MD; David, Matthias MD; Markstaller, Klaus MD;
Principles of electrical impedance tomography and its clinical application. [Review]
Critical Care Medicine. 37(2):713-724, February 2009.
Abstract
Objective: This review outlines the basic principle, in addition to validated and upcoming clinical use of electrical impedance tomography (EIT). EIT generates functional tomograms of the thorax for detection of changes in regional lung aeration. These images allow an intraindividual comparison of changes in regional lung function. Specifically, EIT aims to optimize ventilation therapy in patients with acute lung failure.Data Sources: PubMed: National Library of Medicine and the National Institutes of Health.Study Selection: Studies with the key words "electrical impedance tomography" since 1983.Data Extraction: Qualitative and quantitative results of the studies.Data Synthesis: We summarize basic principles of the technique and subsequent analyzing methods, and give an overview of clinical and scientific questions that can be addressed by EIT.Conclusion: Potential applications in the future as well as limitations of EIT technology are described. In summary, EIT is a promising functional tomography technology on the verge of its clinical application.

Articles from Stroke

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Henneman, Wouter J.P. MD; Sluimer, Jasper D. MD; Cordonnier, Charlotte et al
MRI Biomarkers of Vascular Damage and Atrophy Predicting Mortality in a Memory Clinic Population
Source
Stroke. 40(2):492-498, February 2009.
Abstract
Background and Purpose-: MRI biomarkers play an important role in the diagnostic work-up of dementia, but their prognostic value is less well-understood. We investigated if simple MRI rating scales predict mortality in a memory clinic population.Methods-: We included 1138 consecutive patients attending our memory clinic. Diagnostic categories were: subjective complaints (n=220), mild cognitive impairment (n=160), Alzheimer disease (n=357), vascular dementia (n=46), other dementia (n=136), and other diagnosis (n=219). Baseline MRIs were assessed using visual rating scales for medial temporal lobe atrophy (range, 0-4), global cortical atrophy (range, 0-3), and white matter hyperintensities (range, 0-3). Number of microbleeds and presence of infarcts were recorded. Cox-regression models were used to calculate the risk of mortality.Results-: Mean follow-up duration was 2.6 (+/-1.9) years. In unadjusted models, all MRI markers except infarcts predicted mortality. After adjustment for age, sex, and diagnosis, white matter hyperintensities, and microbleeds predicted mortality (white matter hyperintensities: hazard ratio [HR], 1.2; 95% CI, 1.0-1.4; microbleeds: HR, 1.02 95% CI, 1.00-1.03; categorized: HR, 1.5; 95% CI, 1.1-2.0). The predictive effect of global cortical atrophy was restricted to younger subjects (HR, 1.7; 95% CI, 1.2-2.6). An interaction between microbleeds and global cortical atrophy indicated that mortality was especially high in patients with both microbleeds and global cortical atrophy.Conclusion-: Simple MRI biomarkers, in addition to their diagnostic use, have a prognostic value with respect to mortality in a memory clinic population. Microbleeds were the strongest predictor of mortality.(C) 2009 American Heart Association, Inc.

Burns, Joseph D. MD; Huston, John III MD; Layton, Kennith F. et al
Intracranial Aneurysm Enlargement on Serial Magnetic Resonance Angiography: Frequency and Risk Factors.
Stroke. 40(2):406-411, February 2009.
Abstract
Background and Purpose-: Size of an unruptured intracranial aneurysm (UIA) may be an important risk factor for rupture. Accordingly, serial noninvasive imaging is commonly used to assess untreated UIA for enlargement. Few data exist regarding the frequency and predictors of enlargement. We obtained this information from a group of patients followed with serial MR angiography (MRA).Methods-: We retrospectively identified 165 patients with 191 UIA followed with serial MRA. Fusiform aneurysms, UIA <2>=13 mm, respectively (P<0.001>=8 mm in diameter were at highest risk for enlargement (OR, 7.25; 95% CI, 1.96 to 27.1). There was a trend toward increased risk of enlargement in patients with multiple aneurysms (OR, 2.50; 95% CI, 0.86 to 7.53).Conclusions-: Over a median follow-up period of 47 months, 10% of UIA enlarged. Larger aneurysms had a significantly increased risk of enlargement. The likelihood of enlargement was highest in aneurysms with diameters >=8 mm. However, a clinically significant proportion of small aneurysms grow, and this growth can be detected by serial MRA.

Radiologic Clinics of North America Vol 46 No 6 2008

Foot and Ankle Imaging
pp. 957-972
Ankle Impingement Syndromes.
Hopper, M.A.; Robinson, P.
http://zetoc.mimas.ac.uk/wzgw?db=etoc&terms=RN243031186&field=zid
pp. 973-994
MR Arthrography of the Ankle: Indications and Technique.
Cerezal, L.; Llopis, E.; Canga, A.; Rolon, A.
http://zetoc.mimas.ac.uk/wzgw?db=etoc&terms=RN243031197&field=zid
pp. 995-1002
Osteochondral Lesions About the Ankle.
Naran, K.N.; Zoga, A.C.
http://zetoc.mimas.ac.uk/wzgw?db=etoc&terms=RN243031200&field=zid
pp. 1003-1016
Postoperative Imaging of the Total Ankle Arthroplasty.
Bestic, J.M.; Bancroft, L.W.; Peterson, J.J.; Kransdorf, M.J.
http://zetoc.mimas.ac.uk/wzgw?db=etoc&terms=RN243031216&field=zid
pp. 1017-1026
Imaging of Tarsal Coalition.
Crim, J.
http://zetoc.mimas.ac.uk/wzgw?db=etoc&terms=RN243031227&field=zid
pp. 1027-1044
Ultrasound of the Hindfoot and Midfoot.
Fessell, D.P.; Jacobson, J.A.
http://zetoc.mimas.ac.uk/wzgw?db=etoc&terms=RN243031230&field=zid
pp. 1045-1060
Imaging of Lisfranc Injury and Midfoot Sprain.
Hatem, S.
http://zetoc.mimas.ac.uk/wzgw?db=etoc&terms=RN243031240&field=zid
pp. 1061-1078
MR Imaging and Ultrasound of Metatarsalgia-The Lesser Metatarsals.
Gregg, J.M.; Schneider, T.; Marks, P.
http://zetoc.mimas.ac.uk/wzgw?db=etoc&terms=RN243031253&field=zid
pp. 1079-1092
Imaging of Painful Conditions of the Hallucal Sesamoid Complex and Plantar Capsular Structures of the First Metatarsophalangeal Joint.
Sanders, T.G.; Rathur, S.K.
http://zetoc.mimas.ac.uk/wzgw?db=etoc&terms=RN243031266&field=zid
pp. 1093-1104
Imaging of Soft Tissue Lesions of the Foot and Ankle.
Bancroft, L.W.; Peterson, J.J.; Kransdorf, M.J.
http://zetoc.mimas.ac.uk/wzgw?db=etoc&terms=RN243031276&field=zid
pp. 1105-1124
Current Concepts in Imaging Diabetic Pedal Osteomyelitis.
Donovan, A.; Schweitzer, M.E.
http://zetoc.mimas.ac.uk/wzgw?db=etoc&terms=RN243031288&field=zid

Articles from Neurology

Link to journal online

Callen, D J.A. ; Shroff, M M. ; Branson, H M. ; Li, D K. ; Lotze, T ; Stephens, D; Banwell, B L.
Role of MRI in the differentiation of ADEM from MS in children.
Neurology.
Status
Publish Ahead of Print, POST AUTHOR CORRECTIONS, 26 November 2008
Abstract
Background: Acute disseminated encephalomyelitis (ADEM) is typically a monophasic demyelinating disorder. However, a clinical presentation consistent with ADEM can also be the first manifestation of multiple sclerosis (MS), particularly in children. Quantitative analyses of MRI images from children with monophasic ADEM have yet to be compared with those from children with MS, and MRI criteria capable of distinguishing ADEM from MS at onset have yet to be derived.Methods: A retrospective analysis of MRI scans obtained at first attack from 28 children subsequently diagnosed with MS and 20 children with ADEM was performed. T2/fluid-attenuated inversion recovery hyperintense lesions were quantified and categorized according to location, description, and size. T1-weighted images before and after administration of gadolinium were evaluated for the presence of black holes and for gadolinium enhancement. Mean lesion counts and qualitative features were compared between groups and analyzed to create a proposed diagnostic model.Results: Total lesion number did not differentiate ADEM from MS, but periventricular lesions were more frequent in children with MS. Combined quantitative and qualitative analyses led to the following criteria to distinguish MS from ADEM: any two of 1) absence of a diffuse bilateral lesion pattern, 2) presence of black holes, and 3) presence of two or more periventricular lesions. Using these criteria, MS patients at first attack could be distinguished from monophasic ADEM patients with an 81% sensitivity and a 95% specificity.Conclusions: MRI diagnostic criteria are proposed that may be useful in differentiating children experiencing the first attack of multiple sclerosis from those with monophasic acute disseminated encephalomyelitis.GLOSSARY: ADEM = acute disseminated encephalomyelitis; CIS = clinically isolated syndrome; FLAIR = fluid-attenuated inversion recovery; KIDMUS CC = lesions perpendicular to the long axis of the corpus callosum; KIDMUS discrete = sole presence of well-defined lesions; MS = multiple sclerosis; NA = not applicable; NPV = negative predictive value; ON = optic neuritis; OR = odds ratio; PPV = positive predictive value; RRMS = relapsing-remitting multiple sclerosis; TM = transverse myelitis

Callen, D J.A. MD, PhD; Shroff, M M. MD; Branson, H M. MD; Lotze, T MD; Li, D K. et al
MRI in the diagnosis of pediatric multiple sclerosis.
Neurology.
Status
Publish Ahead of Print, POST AUTHOR CORRECTIONS, 26 November 2008
Abstract
Background: MRI diagnostic criteria have not yet been adopted for pediatric multiple sclerosis (MS). MRI plays a pivotal role in supporting the diagnosis of MS in adults. We sought to quantitatively define the MRI features of pediatric MS, to determine features that distinguish MS from nondemyelinating relapsing childhood neurologic disorders, and to propose MRI criteria for lesion dissemination in space in children with MS.Methods: A retrospective analysis of MRI scans from 38 children with clinically definite MS and 45 children with nondemyelinating diseases with relapsing neurologic deficits (migraine, systemic lupus erythematosus) was performed. For each scan, T2/FLAIR hyperintense lesions were quantified and categorized according to location and size. Mean lesion counts in specific locations were compared between groups to derive diagnostic criteria. Validation of the proposed criteria was performed using MRI scans from a second independent MS cohort (n = 21).Results: MRI lesion location and size categories differed between children with MS and nondemyelinating controls with a medium to large effect size for most variables. The presence of at least two of the following-five or more lesions, two or more periventricular lesions, or one brainstem lesion-distinguished MS from other nondemyelinating disease controls with 85% sensitivity and 98% specificity.Conclusions: We propose modifications to the currently established McDonald MRI criteria for lesion dissemination in space that will enhance the diagnostic accuracy of these criteria for multiple sclerosis in children.GLOSSARY: ADEM = acute disseminated encephalomyelitis; CDMS = clinically definite MS; MS = multiple sclerosis; OND = other non-demyelinating neurologic diseases; SLE = systemic lupus erythematosus

Okuda, D T. MD; Mowry, E M. MD; Beheshtian, A MD; Waubant, E ; Baranzini, S E. et al
Incidental MRI anomalies suggestive of multiple sclerosis: The radiologically isolated syndrome
Neurology.
Status
Publish Ahead of Print, POST AUTHOR CORRECTIONS, 10 December 2008
Abstract
Background: The discovery and broad application of MRI in medicine has led to an increased awareness in the number of patients with incidental white matter pathology in the CNS. Routinely encountered in clinical practice, the natural history or evolution of such individuals with respect to their risk of developing multiple sclerosis (MS) is unclear.Objective: To investigate the natural history of patients who exhibit incidental imaging findings highly suggestive of MS pathology.Methods: Detailed clinical and radiologic data were obtained from asymptomatic patients with MRI anomalies suggestive of MS.Results: The cohort consisted of 41 female and 3 male subjects (median age = 38.5, range: 16.2-67.1). Clinical evaluations were performed in 44 patients at the time of initial imaging; longitudinal clinical follow-up occurred for 30 patients, and longitudinal MRI data were acquired for 41 patients. Neurologic examination at the time of the initial MRI scans was normal in nearly all cases. While radiologic progression was identified in 59% of cases, only 10 patients converted to either clinically isolated syndrome or definite MS. The presence of contrast-enhancing lesions on the initial MRI was predictive of dissemination in time on repeat imaging of the brain (hazard ratio [HR] = 3.4, 95% confidence interval [1.3, 8.7], p = 0.01).Conclusion: Individuals with MRI anomalies highly suggestive of demyelinating pathology, not better accounted for by another disease process, are very likely to experience subsequent radiologic or clinical events related to multiple sclerosis. Additional studies will be necessary to fully define this risk.(C)2009AAN Enterprises, Inc.

Daumer, M PhD; Neuhaus, A MSc; Morrissey, S MD; Hintzen, R MD; Ebers, G C. MD;
MRI as an outcome in multiple sclerosis clinical trials.
Neurology.
Status
Publish Ahead of Print, POST AUTHOR CORRECTIONS, 10 December 2008
Abstract
Introduction: T2-weighted and gadolinium enhanced T1-weighted MRI scans measure plaque burden and breakdown of the blood-brain barrier, respectively, in multiple sclerosis (MS) lesions. These have become widely used outcome measures for monitoring disease activity in clinical trials and clinical practice. However, their use as surrogates or biomarkers for disability and relapses, key clinical outcome measures, has remained incompletely validated.Methods: In a clinical trial database comprised of 31 relapsing-remitting and secondary progressive MS trial placebo groups, we assessed relationships between 1) T2 lesion load (TLL) change and disability change and 2) gadolinium enhancement of MS lesions and on-study relapses with univariate and multivariate analyses.Results: In relapsing-remitting MS, TLL change (n = 223) made no independent contribution to predicting change in disability from baseline to trials' end. Similarly, inclusion of gadolinium enhancing lesions (n = 170) into multivariate models did not independently contribute to the predictive value for on-trial relapses. In secondary progressive MS, a small effect of TLL was found for disability change (n = 355) but in multivariate analysis this accounted for less than 5% of the variance in end-of-trial disability. Results were replicated in independent datasets, more than doubling effective sample sizes.Conclusions: MRI measures widely used in trials of relapsing-remitting and progressive multiple sclerosis add little if anything independently to the clinically relevant relapse and disability outcomes. These results reemphasize the importance of validating potential surrogate markers against clinical measures and highlight the need for better MRI markers of disease activity and progression.

Mlynash, M MD, MS; Olivot, J H. MD, PhD; Tong, D C. MD, FAHA; Lansberg, M G.
Yield of combined perfusion and diffusion MR imaging in hemispheric TIA.
Neurology.
Status
Publish Ahead of Print, POST AUTHOR CORRECTIONS, 17 December 2008
Abstract
Objective: Transient ischemic attacks (TIA) predict future stroke. However, there are no sensitive and specific diagnostic criteria for TIA and interobserver agreement regarding the diagnosis is poor. Diffusion-weighted MRI (DWI) demonstrates acute ischemic lesions in approximately 30% of TIA patients; the yield of perfusion-weighted MRI (PWI) is unclear.Methods: We prospectively performed both DWI and PWI within 48 hours of symptom onset in consecutive patients admitted with suspected hemispheric TIAs of <24 aca =" anterior" ci =" confidence" dwi =" diffusion-weighted" ica =" internal" mca =" middle" mra =" magnetic" mtt =" mean" or =" odds" pca =" posterior" pwi =" perfusion-weighted" rr =" risk" tia =" transient" toast =" Trial">

Fellgiebel, A MD, PhD; Keller, I MD; Marin, D; Muller, M J. MD, PhD; Schermuly, I et al
Diagnostic utility of different MRI and MR angiography measures in Fabry disease.
Source
Neurology. 72(1):63-68, January 6, 2009.
Abstract
Background: Neurologic hallmarks of Fabry disease (FD) include small fiber neuropathy as well as cerebral micro- and macroangiopathy with premature stroke. Cranial MRI shows progressive white matter lesions (WML) at an early age, increased signal intensity in the pulvinar, and tortuosity and dilatation of the larger vessels. To unravel the most promising imaging tool for the detection of CNS involvement in FD we compared the diagnostic utility of the different MR imaging findings.Methods: Twenty-five clinically affected patients with FD (age 36.5 +/- 11.0) and 20 age-matched controls were investigated by structural MRI, MR angiography, and diffusion tensor imaging (DTI). Individual WML volumes, global mean diffusivity (MD), and mean cerebral artery diameters were determined.Results: Using receiver operating characteristic analyses, enlarged diameters of the following cerebral arteries significantly separated patients with FD from controls: middle cerebral artery: area under curve (AUC) = 0.75, p = 0.005; posterior cerebral artery: AUC = 0.69, p = 0.041; carotid artery: 0.69, p = 0.041; basilar artery: AUC = 0.96,

Articles from Spine

Link to journal online

Linn, Jennifer ; Birkenmaier, Christof ; Hoffmann, Ralf T.; Reiser, Maximilian ; Baur-Melnyk, Andrea
The Intravertebral Cleft in Acute Osteoporotic Fractures: Fluid in Magnetic Resonance Imaging-Vacuum in Computed Tomography?
Spine. 34(2):E88-E93, January 15, 2009.
Abstract
Study Design. The study consisted of a retrospective and a prospective study part.Objective. We aimed to investigate the nature of the intravertebral vacuum clefts (IVC) in computed tomography (CT) in acute osteoporotic vertebral fractures in correlation with magnetic resonance imaging (MRI).Summary of Background Data. IVC and intravertebral fluid accumulations have been shown to be indicative of benign vertebral fractures in CT and MRI, respectively.Methods. Twenty-eight patients (30 osteoporotic fractures) associated with intravertebral vacuum in CT in whom MRI of the spine was performed were retrospectively analyzed. Moreover, we prospectively performed MRI examinations in 12 consecutive patients with 13 osteoporotic fractures with an intravertebral vacuum in CT. T1-w SE, STIR, and 5 repetitive T2-w TSE studies were performed (1.5 Tesla system, Siemens). Two experienced readers assessed the examinations in consensus with regard to the occurrence and location of the intravertebral and intradiscal vacuum on CT and the corresponding signal alterations in MRI.Results. Twenty-seven (90%) of the retrospectively analyzed fractures with intravertebral vacuum in CT showed a fluid like signal in the location of the vacuum in MRI. In the prospective group, a small fluid-like signal was initially present on T2-weighted sequences in 11 of 13 fractures (84.6%). During the repeated T2-weighted measurements, the fluid occurred or increased markedly in all cases. An intradiscal fluid was present either initially and/or during the course of the examination in 46% of the prospective cases and in 50% of the retrospectively evaluated fractures.Conclusion. The occurrence of the fluid in MRI within intravertebral clefts is a dynamic process, which is dependent on the position of the patient and is presumably secondary to the extension momentum in the supine position. This may be due to the negative pressure in the horizontal position in which the fracture site is distracted. intravertebral.


Samdani, Amer F. ; Fayssoux, Reginald S. ; Asghar, Jahangir ; McCarthy, James J. et al
Chronic Spinal Cord Injury in the Pediatric Population: Does Magnetic Resonance Imaging Correlate With the International Standards for Neurological Classification of Spinal Cord Injury Examination?
Spine. 34(1):74-81, January 1, 2009.
Abstract
Study Design. Prognostic, retrospective case series.Objective. This study is part of a larger investigation to develop and validate a standardized and reliable method to evaluate and classify the neurologic consequence of spinal cord injury (SCI) in children. Such an instrument may also find use in the evaluation of patients with concomitant brain injury and/or cognitive impairment. We examined the relationship between the International Standards for Neurologic Classification of Spinal Cord Injury (ISCSCI) examination and magnetic resonance imaging (MRI) findings in a pediatric SCI population.Summary of Background Data. Recently, the reliability of the ISCSCI in young children with SCI who are unable to cognitively engage in the examination has been called into question. This has important implications as appropriate classification of these patients is necessary for prognostication, follow-up care, and appropriate placement into clinical trials.Methods. Our longitudinal pediatric SCI database was reviewed for children with chronic SCI (>6 months), ISCSCI examinations performed by experienced testers, and adequate MRIs of the spine. ISCSCI results were correlated with MRI findings. Twenty-six subjects were identified.Results. Overall, good to excellent relationships between ISCSCI neurologic level (NL) and MRI level of injury were found [Kendall [tau] correlation coefficient 0.90

Lehman, Ronald A. Jr ; Helgeson, Melvin D. ; Keeler, Kathryn A. et al
Comparison of Magnetic Resonance Imaging and Computed Tomography in Predicting Facet Arthrosis in the Cervical Spine
Spine. 34(1):65-68, January 1, 2009.
Abstract
Study Design. Retrospective review.Objective. To determine the ability of magnetic resonance imaging (MRI) and computed tomography (CT) to predict the presence of cervical facet arthrosis.Summary of Background Data. In the Food and Drug Administration Investigational Device Exemption trials of cervical disc arthroplasty (CDA), the presence of facet arthrosis on CT was a contraindication to the insertion of a CDA. Most surgeons routinely obtain an MRI, but not necessarily a CT before performing surgery in the cervical spine. We sought to determine if the MRI alone is adequate to assess for the presence of facet arthrosis.Methods. Three experienced spine surgeons retrospectively evaluated CT scans and MRIs of the same patients, obtained within 30 days of each other in a blinded, random fashion. Reviewers graded each of the MRI and CT scan as normal or abnormal on 3 separate occasions and if the facet was abnormal, each reviewer graded the degree of arthrosis. The radiologist's evaluation for each study was compared with our results.Results. Of 594 facets analyzed, 43.1% were categorized as normal on CT, and of those, MRI concordance was only 63.7% with moderate/substantial intermethod agreement. Furthermore, MRI was concordant only 15.9% of the time in patients with ankylosed facet joints on CT. CT inter-rater reliability showed substantial agreement for diagnoses of both normal and ankylosis and fair agreement for lesser degrees of facet arthrosis. MRI inter-rater reliability showed fair/moderate agreement in normal and ankylosed segments and only slight agreement with lesser degrees of facet arthrosis. CT intrarater reliability showed substantial agreement in normal or ankylosed joints, but only fair agreement for all other categories; MRI showed only fair agreement.Conclusion. The ability of MRI to adequately determine the presence or amount of facet arthrosis is not reliable. Additionally, for abnormal facets, MRI was not reliable in adequately determining the degree of arthrosis. Our data suggest that computed tomography remains necessary in diagnosing facet arthrosis before CDA.

Articles from Circulation

Link to journal online

Cawley, Peter J. MD; Maki, Jeffrey H. MD, PhD; Otto, Catherine M. MD;
Cardiovascular Magnetic Resonance Imaging for Valvular Heart Disease: Technique and Validation
Source
Circulation. 119(3):468-478, January 27, 2009.

Neumann, Thomas ; Oelzner, Peter ; Freesmeyer, Martin ; Hansch, Andreas et al
Diagnosis of Large-Vessel Vasculitis by [18F] Fluorodeoxyglucose-Positron Emission Tomography
Circulation. 119(2):338-339, January 20, 2009.

Mor-Avi, Victor PhD; Sugeng, Lissa MD; Lang, Roberto M.
Real-Time 3-Dimensional Echocardiography: An Integral Component of the Routine Echocardiographic Examination in Adult Patients? [Review]
Circulation. 119(2):314-329, January 20, 2009.

Sa, Maria Isabel MD; Kiesewetter, Christoph H. MD; Jagathesan, Rohan MD; Prasad, Sanjay K.
Acute Pericarditis Assessed With Magnetic Resonance Imaging: A New Approach
Source
Circulation. 119(4):e183-e186, February 3, 2009.

Hijazi, Ziyad M. MD, MPH; Shivkumar, Kalyanam MD, PhD; Sahn, David J. MD;
Intracardiac Echocardiography During Interventional and Electrophysiological Cardiac Catheterization. [Review]
Source
Circulation. 119(4):587-596, February 3, 2009.

British Journal of Radiology Vol 82 No 973 2009

pp. 1-12
National reference doses for common radiographic, fluoroscopic and dental X-ray emaminations.
Hart, D.; Hillier, M.C.; Wall, B.F.
pp. 13-19
Patient experiences of colonoscopy, barium enema and CT colonography: a qualitative study.
Von Wagner, C.; Knight, K.; Halligan, S.; Atkin, W.; Lilford, R.; Morton, D.; Wardle, J.
pp. 20-27
Do screen-detected lobular and ductal carcinoma present with different mammographic features?.
Garnett, S.; Wallis, M.; Morgan, G.
pp. 28-34
Advanced pancreatic cancer: the use of the apparent diffusion coefficient to predict response to chemotherapy.
Niwa, T.; Ueno, M.; Ohkawa, S.; Yoshida, T.; Doiuchi, T.; Ito, K.; Inoue, T.
pp. 35-40
Effective dose from cone beam CT examinations in dentistry.
Roberts, J.A.; Drage, N.A.; Davies, J.; Thomas, D.W.
pp. 41-48
Sentinel lymph node biopsy using dynamic lymphoscintigraphy combined with ultrasound-guided fine needle aspiration in penile carcinoma.
Crawshaw, J.W.; Hadway, P.; Hoffland, D.; Bassingham, S.; Corbishley, C.M.et al
pp. 49-61
Evaluation of daily online set-up errors and organ displacement uncertainty during conformal radiation treatment of the prostate.
Osei, E.K.; Jiang, R.; Barnett, R.; Fleming, K.; Panjwani, D.
pp. 62-68
Optimizing the tube potential for lumbar spine radiography with a flat-panel digital detector.
Geijer, H.; Norrman, E.; Persliden, J.
pp. 69-72
Interobserver variability in the measurement of abdominal aortic calcification using unenhanced CT.
Bowden, D.J.; Aitken, S.R.I.; Wilkinson, I.B.; Dixon, A.K.
pp. 73-78
Non-invasive imaging of aberrant right subclavian artery pathologies and aberrant right vertebral artery.
Karcaaltincaba, M.; Haliloglu, M.; Ozkan, E.; Kocak, M.; Akinci, D.; Ariyurek, M.
pp. 79-81
Flank swelling following abdominal trauma: an easily overlooked injury.
Nazir, S.; Scarsbrook, A.F.; Moore, N.R.
p. 82
CT diagnosis of pulmonary artery dissection - potential pitfall of multi-detector CT.
Pua, U.; Tan, C.H.
p. 83
Radiofrequency ablation of renal cell carcinoma with pathological correction.
Fotiadis, N.; Matson, M.
pp. 83-84
Author's reply.
Mylona, S.; Ntai, S.; Stroumpouli, E.; Glentzes, V.; Martinis, S.; Thanos, L.

AJR February 2009 Vol. 192 No. 2

URL: http://www.ajronline.org/content/vol192/issue2/
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Editor's Notebook
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Manuscript Categories: New Refinements
Thomas H. Berquist
AJR 2009;192:319-320
http://www.ajronline.org/cgi/content/full/192/2/319
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From the Section Editor's Notebook
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Declining Utilization of Screening Mammography: The Gathering Storm
Marcia C. Javitt
AJR 2009;192:326
http://www.ajronline.org/cgi/content/full/192/2/326
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Centennial Article
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Mechanical Devices for Arterial Occlusion and Therapeutic Vascular
Occlusion Utilizing Steel Coil Technique: Clinical Applications

Steven C. Rose
AJR 2009;192:321-324
http://www.ajronline.org/cgi/content/full/192/2/321
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Cardiopulmonary Imaging
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CT Detection of Subendocardial Fat in Myocardial Infarction
Sung Soo Ahn, Young-Jin Kim, Jin Hur, Hye-Jeong Lee, Tae Hoon Kim, Kyu
Ok Choe, and Byoung Wook Choi
AJR 2009;192:532-537
http://www.ajronline.org/cgi/content/abstract/192/2/532
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Gastrointestinal Imaging
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CT Diagnosis of Acute Mesenteric Ischemia from Various Causes
Akira Furukawa, Shuzo Kanasaki, Naoaki Kono, Makoto Wakamiya, Toyohiko
Tanaka, Masashi Takahashi, and Kiyoshi Murata
AJR 2009;192:408-416
http://www.ajronline.org/cgi/content/abstract/192/2/408

Mural Attenuation in Normal Small Bowel and Active Inflammatory Crohn's
Disease on CT Enterography: Location, Absolute Attenuation, Relative
Attenuation, and the Effect of Wall Thickness
Mark E. Baker, James Walter, Nancy A. Obuchowski et al
AJR 2009;192:417-423
http://www.ajronline.org/cgi/content/abstract/192/2/417

Contrast-Enhanced Sonography of Nonfunctioning Pancreatic Neuroendocrine
Tumors
Roberto Malago, Mirko D'Onofrio, Giulia A. Zamboni, Niccolo Faccioli,
Massimo Falconi, Letizia Boninsegna, and Roberto Pozzi Mucelli
AJR 2009;192:424-430
http://www.ajronline.org/cgi/content/abstract/192/2/424

Autoimmune Pancreatitis: Pancreatic and Extrapancreatic Imaging Findings
Kale D. Bodily, Naoki Takahashi, Joel G. Fletcher, Jeff L. Fidler,
David M. Hough, Akira Kawashima, and Suresh T. Chari
AJR 2009;192:431-437
http://www.ajronline.org/cgi/content/abstract/192/2/431
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Genitourinary Imaging
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Angiomyolipoma with Minimal Fat on MDCT: Can Counts of Negative-Attenuation
Pixels Aid Diagnosis?
Claus Simpfendorfer, Brian R. Herts, Gaspar A. Motta-Ramirez, Daniel
S. Lockwood, Ming Zhou, Michael Leiber, and Erick M. Remer
AJR 2009;192:438-443
http://www.ajronline.org/cgi/content/abstract/192/2/438

Interobserver Variability of Transrectal Ultrasound for Prostate Volume
Measurement According to Volume and Observer Experience
Young Jun Choi, Jeong Kon Kim, Hyun Jin Kim, and Kyoung-Sik Cho
AJR 2009;192:444-449
http://www.ajronline.org/cgi/content/abstract/192/2/444

Characterization of Adrenal Pheochromocytoma Using Respiratory-Triggered
Proton MR Spectroscopy: Initial Experience

Sooah Kim, Nouha Salibi, Andrew D. Hardie, Jian Xu, Ruth P. Lim et al
AJR 2009;192:450-454
http://www.ajronline.org/cgi/content/abstract/192/2/450

Use of IV Epinephrine for Treatment of Patients with Contrast Reactions:
Lessons Learned from a 5-Year Experience

Mark S. Collins, Christopher H. Hunt, and Robert P. Hartman
AJR 2009;192:455-461
http://www.ajronline.org/cgi/content/abstract/192/2/455

Multitechnique Evaluation of Renal Hydatid Disease
Ahmet Tuncay Turgut, Kemal Odev, Adnan Kabaalioglu, Shweta Bhatt, and
Vikram S. Dogra
AJR 2009;192:462-467
http://www.ajronline.org/cgi/content/abstract/192/2/462
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Women's Imaging
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Predictors of Radiologists' Perceived Risk of Malpractice Lawsuits in
Breast Imaging

John F. Dick, III, Thomas H. Gallagher, R. James Brenner, Joyce P. Yi et al
AJR 2009;192:327-333
http://www.ajronline.org/cgi/content/abstract/192/2/327

Malpractice and Breast Cancer: Perceptions Versus Reality
Leonard Berlin
AJR 2009;192:334-336
http://www.ajronline.org/cgi/content/full/192/2/334

Detection of Breast Cancer with Full-Field Digital Mammography and
Computer-Aided Detection
Juliette S. The, Kathy J. Schilling, Jeffrey W. Hoffmeister et al
AJR 2009;192:337-340
http://www.ajronline.org/cgi/content/abstract/192/2/337

False-Negative Diagnoses at Stereotactic Vacuum-Assisted Needle Breast
Biopsy: Long-Term Follow-Up of 1,280 Lesions and Review of the Literature

Roger J. Jackman, Francis A. Marzoni, Jr., and Jarrett Rosenberg
AJR 2009;192:341-351
http://www.ajronline.org/cgi/content/abstract/192/2/341

Mammography Use from 2000 to 2006: State-Level Trends with Corresponding
Breast Cancer Incidence Rates
Jacqueline W. Miller, Jessica B. King, A. Blythe Ryerson, Christie R.
Eheman, and Mary C. White
AJR 2009;192:352-360
http://www.ajronline.org/cgi/content/abstract/192/2/352

Radiologists' Performance and Their Enjoyment of Interpreting Screening
Mammograms

Berta M. Geller, Erin J. A. Bowles, Hee Yon Sohng, R. James Brenner,
Diana L. Miglioretti, Patricia A. Carney, and Joann G. Elmore
AJR 2009;192:361-369
http://www.ajronline.org/cgi/content/abstract/192/2/361

Workforce Shortages in Breast Imaging: Impact on Mammography Utilization
Paul Wing and Margaret H. Langelier
AJR 2009;192:370-378
http://www.ajronline.org/cgi/content/abstract/192/2/370

Invasive Lobular Carcinoma: Detection with Mammography, Sonography, MRI,
and Breast-Specific Gamma Imaging

Rachel F. Brem, Marina Ioffe, Jocelyn A. Rapelyea, Kristen G. Yost et al
AJR 2009;192:379-383
http://www.ajronline.org/cgi/content/abstract/192/2/379

Image Registration for Detection and Quantification of Change on Digital
Tomosynthesis Mammographic Volumes

Sumedha P. Sinha, Ramkrishnan Narayanan, Bing Ma, Marilyn A.
Roubidoux, He Liu, and Paul L. Carson
AJR 2009;192:384-387
http://www.ajronline.org/cgi/content/abstract/192/2/384

Declining Screening Mammography Rates: A Multigenerational Loss of
Opportunity?

Ruth C. Carlos
AJR 2009;192:388-389
http://www.ajronline.org/cgi/content/full/192/2/388

Tailored Supplemental Screening for Breast Cancer: What Now and What Next?
Wendie A. Berg
AJR 2009;192:390-399
http://www.ajronline.org/cgi/content/abstract/192/2/390

Decreased Mammography Utilization in the United States: Why and How Can We
Reverse the Trend?
Andrea B. Wolf and Rachel F. Brem
AJR 2009;192:400-402
http://www.ajronline.org/cgi/content/abstract/192/2/400

Breast Imaging Fellowships in the United States: Who, What, and Where?
Shrujal S. Baxi, Laura Liberman, Carol Lee, and Elena B. Elkin
AJR 2009;192:403-407
http://www.ajronline.org/cgi/content/abstract/192/2/403
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Musculoskeletal Imaging
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Sonography of Patients with Hemiplegic Shoulder Pain After Stroke:
Correlation with Motor Recovery Stage

In Sook Lee, Yong Beom Shin, Tae-Yong Moon, Yeon Joo Jeong, Jong Woon
Song, and Dong Hyun Kim
AJR 2009;192:40-44
http://www.ajronline.org/cgi/content/abstract/192/2/W40

Distal Attachment of the Brachialis Muscle: Anatomic and MRI Study in
Cadavers

Hatice Tuba Sanal, Lina Chen, Pedro Negrao, Parviz Haghighi, Debra J.
Trudell, and Donald L. Resnick
AJR 2009;192:468-472
http://www.ajronline.org/cgi/content/abstract/192/2/468

Comparison of Indirect Isotropic MR Arthrography and Conventional MR
Arthrography of Labral Lesions and Rotator Cuff Tears: A Prospective Study

Dae Kun Oh, Young Cheol Yoon, Jong Won Kwon, Sang-Hee Choi et al
AJR 2009;192:473-479
http://www.ajronline.org/cgi/content/abstract/192/2/473

MR Diagnosis of Posterior Root Tears of the Lateral Meniscus Using
Arthroscopy as the Reference Standard
Arthur A. De Smet, Donna G. Blankenbaker, Richard Kijowski, Ben K.
Graf, and Kazuhiko Shinki
AJR 2009;192:480-486
http://www.ajronline.org/cgi/content/abstract/192/2/480

Sonography of the Normal Ankle: A Target Approach Using Skeletal Reference
Points

Michel De Maeseneer, Stefaan Marcelis, Tjeerd Jager, Maryam
Shahabpour, Peter Van Roy, Jennifer Weaver, and Jon A. Jacobson
AJR 2009;192:487-495
http://www.ajronline.org/cgi/content/abstract/192/2/487

Correlation of Arthrodesis Stability with Degree of Joint Fusion on MDCT
Michelle L. Dorsey, Patrick T. Liu, Catherine C. Roberts, and Todd A.
Kile
AJR 2009;192:496-499
http://www.ajronline.org/cgi/content/abstract/192/2/496
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Pediatric Imaging
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Idiopathic Chondrolysis of the Hip in Children: Early MRI Findings
Tal Laor and Alvin H. Crawford
AJR 2009;192:526-531
http://www.ajronline.org/cgi/content/abstract/192/2/526
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Vascular and Interventional Radiology
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Carotid Artery Abnormalities and Leukoaraiosis in Elderly Patients:
Evaluation with MDCT

Luca Saba, Roberto Sanfilippo, Luigi Pascalis, Roberto Montisci, and
Giorgio Mallarini
AJR 2009;192:63-70
http://www.ajronline.org/cgi/content/abstract/192/2/W63

Comparison of Ablation Zone Between 915- and 2,450-MHz Cooled-Shaft
Microwave Antenna: Results in In Vivo Porcine Livers

Yuanyuan Sun, Yang Wang, Xiaoxia Ni, Yongyan Gao, Qiujie Shao, Lanfen
Liu, and Ping Liang
AJR 2009;192:511-514
http://www.ajronline.org/cgi/content/abstract/192/2/511

MDCT Angiography of Thoracic Aorta Endovascular Stent-Grafts: Pearls and
Pitfalls

Jenny K. Hoang, Santiago Martinez, and Lynne M. Hurwitz
AJR 2009;192:515-524
http://www.ajronline.org/cgi/content/abstract/192/2/515
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Medical Physics and Informatics
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PACStacker: An Enhancement of the Scientific and Educational Capabilities
of PowerPoint

Paritosh C. Khanna, Mahesh M. Thapa, David de Regt, and Edward
Weinberger
AJR 2009;192:71-74
http://www.ajronline.org/cgi/content/abstract/192/2/W71
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Health Care Policy and Quality
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Preparing First-Year Radiology Residents and Assessing Their Readiness for
On-Call Responsibilities: Results Over 5 Years
Suvranu Ganguli, Marc Camacho, Chun-Shan Yam, and Ivan Pedrosa
AJR 2009;192:539-544
http://www.ajronline.org/cgi/content/abstract/192/2/539
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Letters
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Penumbra Imaging as a Prognostic Indicator for Acute Myocardial Infarction
Using MDCT

I-Chen Tsai, Kae-Woei Liang, and Wen-Lieng Lee
AJR 2009;192:75-76
http://www.ajronline.org/cgi/content/full/192/2/W75

Role of MDCT in the Evaluation of Prosthetic Heart Valves
Murat Biteker, Sabahattin Gunduz, and Mehmet Ozkan
AJR 2009;192:77
http://www.ajronline.org/cgi/content/full/192/2/W77

Reply
Eli Konen
AJR 2009;192:78
http://www.ajronline.org/cgi/content/full/192/2/W78

Achilles Wiiitis
Peter Beddy, Ruth Dunne, and Catherine de Blacam
AJR 2009;192:79
http://www.ajronline.org/cgi/content/full/192/2/W79

Nonionic Iodinated Contrast Media Reactions
Elliott C. Lasser
AJR 2009;192:80
http://www.ajronline.org/cgi/content/full/192/2/W80

Reply
Richard H. Cohan, James H. Ellis, and Carolyn L. Wang
AJR 2009;192:81
http://www.ajronline.org/cgi/content/full/192/2/W81
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Book Reviews
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Musculoskeletal Imaging: Case Review Series, 2nd ed.
Michael G. Fox
AJR 2009;192:82
http://www.ajronline.org/cgi/content/full/192/2/W82

Pediatric Body CT, 2nd ed.
Kristen B. Thomas
AJR 2009;192:83
http://www.ajronline.org/cgi/content/full/192/2/W83
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Neuroradiology/Head and Neck Imaging
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Developing a Clinical Decision Model: MR Spectroscopy to Differentiate
Between Recurrent Tumor and Radiation Change in Patients with New
Contrast-Enhancing Lesions

Ethan A. Smith, Ruth C. Carlos, Larry R. Junck, Christina I. Tsien,
Augusto Elias, and Pia C. Sundgren
AJR 2009;192:45-52
http://www.ajronline.org/cgi/content/abstract/192/2/W45

Bilateral Thalamic Lesions
Alice B. Smith, James G. Smirniotopoulos, Elisabeth J. Rushing, and
Steven J. Goldstein
AJR 2009;192:53-62
http://www.ajronline.org/cgi/content/abstract/192/2/W53

Neuroimaging Findings in Acute Wernicke's Encephalopathy: Review of the
Literature
Giulio Zuccoli and Nicolo Pipitone
AJR 2009;192:501-508
http://www.ajronline.org/cgi/content/abstract/192/2/501

Radiography Vol 15 No 1 2009

p. 1
A focus on special editions.
Price, R.
pp. 2-5
Consultant radiographers - The point of no return?.
Paterson, A.
pp. 6-11
Influence of femoral rotation on femoral offset determined from radiographs.
Meyer, C.
pp. 12-19
Use of dual-energy X-ray absorptiometry in obese individuals: The possibility to estimate whole body composition from DXA half-body scans.
Lundqvist, K.; Neovius, M.; Grigorenko, A.; Nordenstrom, J.; Rossner, S.
pp. 20-25
Radiation oncology: An Irish hospitals approach to supporting patients.
Miller, C.
pp. 26-33
A new graduate education program in radiation therapy.
Beldham-Collins, R.; Milinkovic, D.
pp. 34-39
Act, scene, agency: The drama of medical imaging.
Murphy, F.
pp. 40-48
Initial image interpretation of appendicular skeletal radiographs: A comparison between nurses and radiographers.
Piper, K. J.; Paterson, A.
pp. 49-57
A comparison of fluoroscopy time and dose area product (DAP) readings for outpatient barium enema examinations.
Ruffles, H.; Strudwick, R. M.
pp. 58-62
Digital radiography detectors - A technical overview: Part 1.
Lanca, L.; Silva, A.
pp. 63-69
An analysis of changes in practice introduced during an educational programme for practitioner-led swallowing investigations.
Nightingale, J.; Mackay, S.
pp. 70-76
Defining and assessing critical thinking skills for student radiographers.
Castle, A.
pp. 77-85
Mature students' perspectives of studying radiography.
Williams, M.; Decker, S.
pp. 86-90
An unusual MR signal reduction artefact in an incompletely thawed cadaver spine specimen.
Kurmis, A. P.; Slavotinek, J. P.; Barber, C.; Smith, L.; Fazzalari, N. L.
pp. 91-93
Unusual scrotal mass and review of scrotal imaging.
Ansari, A.; Ansari, H. A.; Banerjee, B.