Radiology -- Table of Contents (244 [3])

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SCIENCE TO PRACTICE:

Seth Glick: Will 3D Virtual Dissection Display Prove to Be the Display Format for Reviewing CT Colonography Examinations?
The authors observed no significant difference (P > .05) in sensitivity or specificity between the two techniques for the detection of polyps 6 mm or larger, whereas the median review time with virtual dissection was significantly (P < .05) shorter.
Radiology 2007 244: 629-630 (DOI: 10.1148/radiol.2443070748); [Figures Only] [Full Text] [PDF]

COMMUNICATIONS:

Letters to the Editor:

Christiane K. Kuhl, Hendrik Kooijman, Juergen Gieseke, and Hans H. Schild: Effect of B₁ Inhomogeneity on Breast MR Imaging at 3.0 T
Radiology 2007 244: 929-930 (DOI: 10.1148/radiol.2443070266); [Figures Only] [Full Text] [PDF]

Georges Saab, Ali Abu-Alfa, Elizabeth A. Sadowski, and Arjang Djamali: Are Patients with Moderate Renal Failure at Risk for Developing Nephrogenic Systemic Fibrosis?
Radiology 2007 244: 930-932 (DOI: 10.1148/radiol.2443070351); [Full Text] [PDF]

Raymond P. Chan, Marie Faughnan, and Robert White: Pulmonary Arteriovenous Malformations Treated with Embolotherapy
Radiology 2007 244: 932 (DOI: 10.1148/radiol.2443061697); [Full Text] [PDF]

Mustafa Kemal Demir, Huseyin Ozdemir, Ercument Unlu, Osman Temizöz, Hakan Genchellac, and Sahar M. El Khamary: Differential Diagnosis of Spinal Epidural Meningioma and Hemangioma at MR Imaging
Radiology 2007 244: 933-934 (DOI: 10.1148/radiol.2443061813); [Full Text] [PDF]

In Memoriam:

Justino Fernandes and John Ostheimer: Robert Anton Nebesar, MD
Radiology 2007 244: 935-936 (DOI: 10.1148/radiol.2443072532); [Figures Only] [Full Text] [PDF]

REVIEWS AND COMMENTARY:

Editorials:

Robert G. Sheiman: The RSNA Reviewer Mentorship Program
By participating in the review of scientific manuscripts, we hope to identify potential future reviewers for Radiology and other scientific journals, increase the confidence of residents who contemplate an academic career, and expose residents to mentor and author analytical thought processes that help keep Radiology at the cutting edge of our field.
Radiology 2007 244: 631-632 (DOI: 10.1148/radiol.2443070830); [Full Text] [PDF]

Gabriel P. Krestin, Janet C. Miller, Stephen J. Golding, Guy G. Frija, Gary M. Glazer, Hans G. Ringertz, and James H. Thrall: Reinventing Radiology in a Digital and Molecular Age: Summary of Proceedings of the Sixth Biannual Symposium of the International Society for Strategic Studies in Radiology (IS³R), August 25–27, 2005
Recent innovations in imaging suggest that radiology will be a major catalyst for transforming medicine into an age of information technology and molecular medicine.
Radiology 2007 244: 633-638. Published online before print August 9 2007, 10.1148/radiol.2443070165 [Figures Only] [Full Text] [PDF]

Habib Zaidi: Is MR-guided Attenuation Correction a Viable Option for Dual-Modality PET/MR Imaging?
Predicting the future is difficult, and any attempt to do so is fundamentally flawed; nonetheless, it appears that plenty of opportunities remain for creative advances in MR-guided attenuation correction of PET data if PET/MR imaging is to become a multimodality platform for molecular imaging.
Radiology 2007 244: 639-642 (DOI: 10.1148/radiol.2443070092); [Full Text] [PDF]

Evidence-based Radiology Series:

Jean Raymond and Isabelle Trop: The Practice of Ethics in the Era of Evidence-based Radiology
We can train ourselves to critically review and appraise ethical facts, and, in this sense, the practice of ethics may be conceived as a natural extension of the evidence-based radiology process.
Radiology 2007 244: 643-649 (DOI: 10.1148/radiol.2443052026); [Abstract] [Figures Only] [Full Text] [PDF]

Molecular Imaging Series:

Sandip Biswal, Donald L. Resnick, John M. Hoffman, and Sanjiv S. Gambhir: Molecular Imaging: Integration of Molecular Imaging into the Musculoskeletal Imaging Practice
It is in this arena of uncertainty that molecular imaging may prove very useful, providing information not discernible with current clinical imaging techniques.
Radiology 2007 244: 651-671 (DOI: 10.1148/radiol.2443060295); [Abstract] [Figures Only] [Full Text] [PDF]

State of the Art:

Christiane K. Kuhl: Current Status of Breast MR Imaging • Part 2. Clinical Applications
All of the published studies are highly concordant in finding that breast MR is the most accurate imaging technique currently available for local breast cancer staging.
Radiology 2007 244: 672-691 (DOI: 10.1148/radiol.2443051661); [Abstract] [Figures Only] [Full Text] [PDF]

Special Review:

Vivian S. Lee, Elizabeth M. Hecht, Bachir Taouli, Qun Chen, Keyma Prince, and Niels Oesingmann: Body and Cardiovascular MR Imaging at 3.0 T
Motivated by a combination of higher signal-to-noise ratio potential, better spectral separation, and some improvements in image contrast, the proliferation of 3-T whole-body systems for clinical imaging has introduced new challenges for the user.
Radiology 2007 244: 692-705 (DOI: 10.1148/radiol.2443060582); [Abstract] [Figures Only] [Full Text] [PDF]

Book Reviews:

: Noninvasive Imaging of Myocardial Ischemia
Radiology 2007 244: 706 (DOI: 10.1148/radiol.2443072527); [Full Text] [PDF]

: Bone and Joint Disorders: Differential Diagnosis in Conventional Radiology, 2nd ed
Radiology 2007 244: 706-707 (DOI: 10.1148/radiol.2443072528); [Full Text] [PDF]

: PET and PET/CT: A Clinical Guide
Radiology 2007 244: 707 (DOI: 10.1148/radiol.2443072529); [Full Text] [PDF]

ORIGINAL RESEARCH:

Breast Imaging:

Per Skaane, Solveig Hofvind, and Arnulf Skjennald: Randomized Trial of Screen-Film versus Full-Field Digital Mammography with Soft-Copy Reading in Population-based Screening Program: Follow-up and Final Results of Oslo II Study
The Oslo II follow-up study results have demonstrated a significantly higher cancer detection rate at full-field digital mammography than at screen-film mammography, whereas the positive predictive values were comparable for the two imaging modalities.
Radiology 2007 244: 708-717 (DOI: 10.1148/radiol.2443061478); [Abstract] [Figures Only] [Full Text] [PDF]

Flemming Forsberg, Catherine W. Piccoli, Daniel A. Merton, Juan J. Palazzo, and Anne L. Hall: Breast Lesions: Imaging with Contrast-enhanced Subharmonic US—Initial Experience
Subharmonic imaging may increase the ability to diagnose breast cancer compared with current techniques (albeit on the basis of findings in a very small subject group).
Radiology 2007 244: 718-726. Published online before print August 9 2007, 10.1148/radiol.2443061588 [Abstract] [Figures Only] [Full Text] [PDF]

Arpi Thukral, David M. Thomasson, Catherine K. Chow, Reyes Eulate, Suparna B. Wedam, Sandeep N. Gupta, Betty J. Wise, Seth M. Steinberg, David J. Liewehr, Peter L. Choyke, and Sandra M. Swain: Inflammatory Breast Cancer: Dynamic Contrast-enhanced MR in Patients Receiving Bevacizumab—Initial Experience
We found that the MR-derived integrated area under the gadolinium concentration curve and general kinetic model parameters forward transfer rate constant and backflow compartmental rate constant extravascular and extracellular to plasma were the most strongly associated with changes in inflammatory breast cancer response after treatment with bevacizumab alone and combination bevacizumab therapy and chemotherapy.
Radiology 2007 244: 727-735 (DOI: 10.1148/radiol.2443060926); [Abstract] [Figures Only] [Full Text] [PDF]

Cardiac Imaging:

Jonathan Lessick, Robert Dragu, Diab Mutlak, Shmuel Rispler, Rafael Beyar, Diana Litmanovich, Ahuva Engel, Yoram Agmon, Michael Kapeliovich, Haim Hammerman, and Eduard Ghersin: Is Functional Improvement after Myocardial Infarction Predicted with Myocardial Enhancement Patterns at Multidetector CT?
The ability to predict myocardial functional recovery could be especially important as an ancillary finding in patients after acute myocardial infarction who are undergoing thrombolytic therapy that involves multidetector CT for coronary artery evaluation or patients with acute ischemia with suspected myocardial stunning.
Radiology 2007 244: 736-744. Published online before print August 9 2007, 10.1148/radiol.2443061397 [Abstract] [Figures Only] [Full Text] [PDF]

Anne-Catherine Pouleur, Jean-Benoît le Polain de Waroux, Agnès Pasquet, Jean-Louis J. Vanoverschelde, and Bernhard L. Gerber: Aortic Valve Area Assessment: Multidetector CT Compared with Cine MR Imaging and Transthoracic and Transesophageal Echocardiography
Our study results show that multidetector CT can be used to measure the aortic valve area and detect aortic stenosis at the time of noninvasive coronary imaging with accuracy similar to that of MR imaging and transesophageal echocardiography.
Radiology 2007 244: 745-754. Published online before print July 13 2007, 10.1148/radiol.2443061127 [Abstract] [Figures Only] [Full Text] [PDF]

Evidence-based Practice:

Hidemasa Takao and Takeshi Nojo: Treatment of Unruptured Intracranial Aneurysms: Decision and Cost-effectiveness Analysis
The results of our study suggest that, for 50-year-old patients, treatment is ineffective or not cost effective for aneurysms that are small (<7 mm), that are located in the cavernous carotid artery, or that are large ( $≥$ 25 mm) and located in the posterior circulation.
Radiology 2007 244: 755-766. Published online before print July 24 2007, 10.1148/radiol.2443061278 [Abstract] [Figures Only] [Full Text] [PDF]

Experimental Studies:

Bernard A. Birnbaum, Nicole Hindman, Julie Lee, and James S. Babb: Renal Cyst Pseudoenhancement: Influence of Multidetector CT Reconstruction Algorithm and Scanner Type in Phantom Model
Both simple and hyperattenuating renal cysts may be subjected to the pseudoenhancement effect, which is significantly dependent on imaging regimen (multidetector CT scanner and convolution kernel combination), cyst diameter, and background renal attenuation.
Radiology 2007 244: 767-775 (DOI: 10.1148/radiol.2443061537); [Abstract] [Figures Only] [Full Text] [PDF] [Additional Figures]

Gastrointestinal Imaging:

Dongil Choi, Donald G. Mitchell, Sachit K. Verma, Diane Bergin, Victor J. Navarro, Aarati B. Malliah, Christopher McGowan, Hie-Won L. Hann, and Steven K. Herrine: Hepatocellular Carcinoma with Indeterminate or False-Negative Findings at Initial MR Imaging: Effect on Eligibility for Curative Treatment—Initial Observations
Delayed diagnosis of 6–12 months due to indeterminate or false-negative findings at previous MR imaging did not lead to untreatable HCC.
Radiology 2007 244: 776-783. Published online before print August 9 2007, 10.1148/radiol.2443061355 [Abstract] [Figures Only] [Full Text] [PDF]

Elizabeth Lazarus, William W. Mayo-Smith, Martha B. Mainiero, and Patricia K. Spencer: CT in the Evaluation of Nontraumatic Abdominal Pain in Pregnant Women
Our results show that CT provided important diagnostic information in 30% of pregnant women whose US examination findings were normal.
Radiology 2007 244: 784-790 (DOI: 10.1148/radiol.2443061634); [Abstract] [Figures Only] [Full Text] [PDF]

Sachit K. Verma, Donald G. Mitchell, Diane Bergin, Rashi Mehta, Sheetal Chopra, and Dongil Choi: The Cisterna Chyli: Enhancement on Delayed Phase MR Images after Intravenous Administration of Gadolinium Chelate
Detection of the cisterna chyli and knowledge of its enhancement pattern are important to avoid mistaking it for an enhancing esophageal varicosity, retrocrural lymph node, or azygos vein.
Radiology 2007 244: 791-796. Published online before print July 24 2007, 10.1148/radiol.2443061518 [Abstract] [Figures Only] [Full Text] [PDF]

Genitourinary Imaging:

Claudia Testa, Riccardo Schiavina, Raffaele Lodi, Eugenio Salizzoni, Barbara Corti, Mohsen Farsad, John Kurhanewicz, Fabio Manferrari, Eugenio Brunocilla, Caterina Tonon, Nino Monetti, Paolo Castellucci, Stefano Fanti, Manuela Coe, Walter F. Grigioni, Giuseppe Martorana, Romeo Canini, and Bruno Barbiroli: Prostate Cancer: Sextant Localization with MR Imaging, MR Spectroscopy, and ¹¹C-Choline PET/CT
While the overall accuracy of combined MR imaging and three-dimensional MR spectroscopic imaging for sextant localization of prostate cancer was similar to that of PET/CT, both good sensitivity (88%) and good specificity (90%) could be achieved with the appropriate combination of anatomic and metabolic information.
Radiology 2007 244: 797-806. Published online before print July 24 2007, 10.1148/radiol.2443061063 [Abstract] [Figures Only] [Full Text] [PDF]

Innovations:

Martin S. Judenhofer, Ciprian Catana, Brian K. Swann, Stefan B. Siegel, Wulf-Ingo Jung, Robert E. Nutt, Simon R. Cherry, Claus D. Claussen, and Bernd J. Pichler: PET/MR Images Acquired with a Compact MR-compatible PET Detector in a 7-T Magnet
Our results confirm that simultaneous PET and high-field-strength MR imaging with lutetium oxyorthosilicate–avalanche photodiode–based PET detectors is feasible without sacrificing the quality of images obtained with either system.
Radiology 2007 244: 807-814 (DOI: 10.1148/radiol.2443061756); [Abstract] [Figures Only] [Full Text] [PDF]

Musculoskeletal Imaging:

Garry E. Gold, George P. Pappas, Silvia S. Blemker, Sean T. Whalen, Gordon Campbell, Timothy A. McAdams, and Christopher F. Beaulieu: Abduction and External Rotation in Shoulder Impingement: An Open MR Study on Healthy Volunteers—Initial Experience
Our results indicate that even in asymptomatic volunteers, contact and deformation of tendons may occur in the loaded abduction and external rotation position.
Radiology 2007 244: 815-822. Published online before print August 9 2007, 10.1148/radiol.2443060998 [Abstract] [Figures Only] [Full Text] [PDF]

Neuroradiology:

Vallabh Janardhan, Sonu Suri, and Rohit Bakshi: Multiple Sclerosis: Hyperintense Lesions in the Brain on Nonenhanced T1-weighted MR Images Evidenced as Areas of T1 Shortening
Hyperintense plaques on nonenhanced T1-weighted MR images are common in patients with multiple sclerosis and are associated with brain atrophy, disability, and advancing disease course, and these findings suggest that a hyperintense lesion may be a clinically relevant biomarker.
Radiology 2007 244: 823-831. Published online before print August 9 2007, 10.1148/radiol.2443051171 [Abstract] [Figures Only] [Full Text] [PDF]

Basil H. Ridha, Daniel J. Tozer, Mark R. Symms, Katherine C. Stockton, Emma B. Lewis, Musib M. Siddique, David G. MacManus, Martin N. Rossor, Nick C. Fox, and Paul S. Tofts: Quantitative Magnetization Transfer Imaging in Alzheimer Disease
Results of our cross-sectional pilot study found the measurement of the magnetization transfer parameter f_b^* in the hippocampal region to be at least as good as whole-brain volume measurement in the display of correlation with Mini-Mental State Examination results among patients with Alzheimer disease and in the differentiation of patient and control groups.
Radiology 2007 244: 832-837 (DOI: 10.1148/radiol.2443061128); [Abstract] [Figures Only] [Full Text] [PDF]

Pediatric Imaging:

Helen M. Branson, Andrea S. Doria, Rahim Moineddin, and Manohar M. Shroff: The Brain in Children: Is Contrast Enhancement Really Needed after Obtaining Normal Unenhanced CT Results?
Unless an abnormality is suspected on the unenhanced CT scan, we believe that the use of contrast material and repeat scanning, with their potential increased risks, may not be necessary.
Radiology 2007 244: 838-844. Published online before print August 9 2007, 10.1148/radiol.2443051785 [Abstract] [Figures Only] [Full Text] [PDF]

Terry M. Humphrey and Mark D. Stringer: Biliary Atresia: US Diagnosis
An accurate diagnosis of biliary atresia is possible if multiple US features are carefully analyzed by an experienced operator.
Radiology 2007 244: 845-851 (DOI: 10.1148/radiol.2443061051); [Abstract] [Figures Only] [Full Text] [PDF]

Technical Developments:

Se Hyung Kim, Jeong Min Lee, Hyo Won Eun, Min Woo Lee, Joon Koo Han, Jae Young Lee, and Byung Ihn Choi: Two- versus Three-dimensional Colon Evaluation with Recently Developed Virtual Dissection Software for CT Colonography
Compared with the conventional two-dimensional colonographic data interpretation method, primary three-dimensional interpretation performed by using virtual dissection software had comparable sensitivity and specificity and facilitated increased time efficiency in the detection of colonic polyps.
Radiology 2007 244: 852-864 (DOI: 10.1148/radiol.2443060934); [Abstract] [Figures Only] [Full Text] [PDF]

Pei-Lin Hsiung, Darshan R. Phatak, Yu Chen, Aaron D. Aguirre, James G. Fujimoto, and James L. Connolly: Benign and Malignant Lesions in the Human Breast Depicted with Ultrahigh Resolution and Three-dimensional Optical Coherence Tomography
In our study, optical coherence tomography was shown to enable visualization of characteristic features of normal tissue, benign lesions, and malignant lesions in the human breast.
Radiology 2007 244: 865-874. Published online before print July 13 2007, 10.1148/radiol.2443061536 [Abstract] [Figures Only] [Full Text] [PDF] [Appendix E1][Appendix E2]

Thoracic Imaging:

Marie-Pierre Revel, Rached Triki, Gilles Chatellier, Sophie Couchon, Nathalie Haddad, Anne Hernigou, Claire Danel, and Guy Frija: Is It Possible to Recognize Pulmonary Infarction on Multisection CT Images?
The presence of central lucencies within a peripheral consolidation strongly suggests pulmonary infarction.
Radiology 2007 244: 875-882 (DOI: 10.1148/radiol.2443060846); [Abstract] [Figures Only] [Full Text] [PDF]

Conrad Wittram, Arthur C. Waltman, Jo-Anne O. Shepard, Elkan Halpern, and Lawrence R. Goodman: Discordance between CT and Angiography in the PIOPED II Study
Our findings showed that CT was significantly more sensitive than angiography in the detection of pulmonary embolism.
Radiology 2007 244: 883-889. Published online before print July 30 2007, 10.1148/radiol.2443061693 [Abstract] [Figures Only] [Full Text] [PDF]

Hester A. Gietema, Arnold M. Schilham, Bram van Ginneken, Rob J. van Klaveren, Jan Willem J. Lammers, and Mathias Prokop: Monitoring of Smoking-induced Emphysema with CT in a Lung Cancer Screening Setting: Detection of Real Increase in Extent of Emphysema
An increase in the emphysema score of at least 1.1% for –950 HU to 12.6% for –910 HU is required for detection of an increase in the extent of emphysema, with 95% confidence, when monitoring patients who have smoking-induced emphysema with low-dose CT in a lung cancer screening setting.
Radiology 2007 244: 890-897 (DOI: 10.1148/radiol.2443061330); [Abstract] [Figures Only] [Full Text] [PDF]

Ultrasonography:

Hyun-Jung Jang, Tae Kyoung Kim, Peter N. Burns, and Stephanie R. Wilson: Enhancement Patterns of Hepatocellular Carcinoma at Contrast-enhanced US: Comparison with Histologic Differentiation
While most hepatocellular carcinomas with moderate differentiation show typical arterial hypervascularity and portal venous phase washout, variations exist particularly for well- and poorly differentiated tumors.
Radiology 2007 244: 898-906 (DOI: 10.1148/radiol.2443061520); [Abstract] [Figures Only] [Full Text] [PDF]

Vascular and Interventional Radiology:

Henrik J. Michaely, Harald Kramer, Olaf Dietrich, Kambiz Nael, Klaus-Peter Lodemann, Maximilian F. Reiser, and Stefan O. Schoenberg: Intraindividual Comparison of High-Spatial-Resolution Abdominal MR Angiography at 1.5 T and 3.0 T: Initial Experience
Abdominal MR angiography at 3.0 T is feasible and provides better image contrast, higher spatial resolution, and broader coverage in a shorter imaging time than does MR angiography performed at 1.5 T.
Radiology 2007 244: 907-913 (DOI: 10.1148/radiol.2443061647); [Abstract] [Figures Only] [Full Text] [PDF]

SIGNS IN IMAGING:

Josh B. Moosikasuwan: The Pronator Quadratus Sign
The pronator quadratus sign, seen on the lateral radiograph of the forearm, is a displacement, anterior bowing, or obliteration of the thin lucent stripe of fat paralleling the distal radius and soft-tissue opacity of the pronator quadratus muscle.
Radiology 2007 244: 927-928 (DOI: 10.1148/radiol.2443042063); [Figures Only] [Full Text] [PDF]

DIAGNOSIS PLEASE:

Ricardo B. Fonseca and Ewa F. Grzeszczak: Case 128
Radiology 2007 244: 914-915 (DOI: 10.1148/radiol.2443041652); [Figures Only] [Full Text] [PDF]

Erik S. Rhodes, Joseph S. Pekala, John M. Gemery, and Kevin W. Dickey: Case 129
Radiology 2007 244: 916-918 (DOI: 10.1148/radiol.2443040001); [Figures Only] [Full Text] [PDF]

Marc A. Mancuso, Yvonne Y. Cheung, Anne M. Silas, Jocelyn D. Chertoff, and Kevin W. Dickey: Case 120: Ischemic Colitis Limited to the Cecum
Imaging of patients presenting with signs and symptoms of ischemic colitis frequently begins with radiography of the abdomen to rule out bowel obstruction or perforation; however, CT is the mainstay in the radiographic evaluation of colitis.
Radiology 2007 244: 919-922 (DOI: 10.1148/radiol.2443041285); [Figures Only] [Full Text] [PDF]

Timothy D. Watson, Shital J. Patel, and Peter M. Nardi: Case 121: Familial Adrenocorticotropin-independent Macronodular Adrenal Hyperplasia Causing Cushing Syndrome
The findings described in this case of macronodular bilaterally enlarged adrenal glands in the setting of Cushing syndrome are most typical of adrenocorticotropin-independent macronodular adrenocortical hyperplasia.
Radiology 2007 244: 923-926 (DOI: 10.1148/radiol.2443041507); [Figures Only] [Full Text] [PDF]

DEPARTMENTS:

: Abstracts of Current Literature
Radiology 2007 244: 937-938 (DOI: 10.1148/radiol.2443072530); [Full Text] [PDF]

: This Month in Radiology
Radiology 2007 244: 14-15 (DOI: 10.1148/radiol.2443200714); [PDF]

: Publication Information for Authors
Radiology 2007 244: [Full Text]