Radiology -- Table of Contents (245 [1])

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SCIENCE TO PRACTICE:

Evan C. Unger: How Can Cardiac MR Imaging Help Guide Development of Gene Therapy for Treatment of Coronary Heart Disease?
Jacquier and colleagues used MR imaging to measure left ventricular function and strain and showed that animals treated with gene therapy had stable ejection fraction whereas control animals deteriorated.
Radiology 2007 245: 1-2 (DOI: 10.1148/radiol.2451070872); [Figures Only] [Full Text] [PDF]

COMMUNICATIONS:

Letters to the Editor:

Javier Gorricho, Juan Erviti, Margaret J. Henry, Julie A. Pasco, Kerrie M. Sanders, Geoffrey C. Nicholson, and Mark Anthony Kotowicz: Fracture Risk Score
Radiology 2007 245: 298 (DOI: 10.1148/radiol.2451061875); [Full Text] [PDF]

Ales Fidler, Bostjan Likar, and Helmut Rupert Ringl: What Is Wrong with Compression Ratio in Lossy Image Compression?
Radiology 2007 245: 299-300 (DOI: 10.1148/radiol.2451062005); [Full Text] [PDF]

Mustafa Kemal Demir and Daniel Marichal: Unusual Appearance of Lumbar Facet Synovial Cyst and Differential Diagnosis
Radiology 2007 245: 300 (DOI: 10.1148/radiol.2451061834); [Full Text] [PDF]

Ferris M. Hall and Katherine E. Martin, MD: Mammographic Density Categories
Radiology 2007 245: 300-302 (DOI: 10.1148/radiol.2451061837); [Full Text] [PDF]

Erratum:

: Erratum
Radiology 2007 245: 302 (DOI: 10.1148/radiol.2451072544); [Full Text] [PDF]

In Memoriam:

Robert H. Rosenberg: Homer V. Hartzell, MD
Radiology 2007 245: 303 (DOI: 10.1148/radiol.2451072538); [Figures Only] [Full Text] [PDF]

Steven K. Teplick: Joseph George Teplick, MD
Radiology 2007 245: 304 (DOI: 10.1148/radiol.2451072539); [Figures Only] [Full Text] [PDF]

REVIEWS AND COMMENTARY:

Editorials:

Gary J. Becker: Simulation and the Coming Transformation of Medical Education and Training
We should be prepared for new models of education and training and for the adoption in the practice environment of simulation technologies that facilitate both individual patient management and the maintenance and assessment of specific competencies.
Radiology 2007 245: 7-9 (DOI: 10.1148/radiol.2451070674); [Full Text] [PDF]

David Gur: Digital Mammography: Do We Need to Convert Now?
Ultimately, digital mammography is better for the patient and for our future medical practice, even if the diagnostic performance does not actually improve in the subsets of younger or premenopausal women by as much as seems to be indicated from the Digital Mammographic Imaging Screening Trial project.
Radiology 2007 245: 10-11 (DOI: 10.1148/radiol.2451062078); [Full Text] [PDF]

Etta D. Pisano, R. Edward Hendrick, Martin Yaffe, Emily F. Conant, and Constantine Gatsonis: Should Breast Imaging Practices Convert to Digital Mammography? A Response from Members of the DMIST Executive Committee
Further analysis of Digital Mammographic Imaging Screening Trial (DMIST) results and future studies of digital mammography in light of DMIST are the best ways to learn exactly how digital mammography should be used.
Radiology 2007 245: 12-13 (DOI: 10.1148/radiol.2451070393); [Full Text] [PDF]

Andrés Rahal, Hayden W. Head, Adam J. Jung, Xavier Garcia-Rojas, Daniel Vargas, Neal C. Dalrymple, Geoffrey D. Clarke, Gerald D. Dodd, III, and Gary D. Fullerton: Combined Radiology Residency/PhD Program for Education of Academic Radiologists: A Response to Revitalizing the Radiology Research Enterprise
As a response to the Revitalizing the Radiology Research Enterprise, we have introduced the radiology residency/PhD program, a new model designed to address serious challenges facing academic radiology.
Radiology 2007 245: 14-20 (DOI: 10.1148/radiol.2451070168); [Figures Only] [Full Text] [PDF]

Molecular Imaging Series:

Dima A. Hammoud, John M. Hoffman, and Martin G. Pomper: Molecular Neuroimaging: From Conventional to Emerging Techniques
Despite the presence of the blood-brain barrier, which limits access of many potential molecular imaging agents to the brain, functional and, more recently, molecular neuroimaging have been successfully performed and have provided a conceptual framework within which quantitative imaging techniques can be applied to other organs and diseases.
Radiology 2007 245: 21-42 (DOI: 10.1148/radiol.2451060731); [Abstract] [Figures Only] [Full Text] [PDF]

Review:

Michael T. Modic and Jeffrey S. Ross: Lumbar Degenerative Disk Disease
We will attempt in this review to summarize current thoughts about the etiology, manifestations, and symptom production in lumbar degenerative disk disease, and the role imaging currently plays in its identification and management.
Radiology 2007 245: 43-61 (DOI: 10.1148/radiol.2451051706); [Abstract] [Figures Only] [Full Text] [PDF]

Antonio Leone, Giuseppe Guglielmi, Victor N. Cassar-Pullicino, and Lorenzo Bonomo: Lumbar Intervertebral Instability: A Review
The quantification of normal and abnormal spinal motion is likely to be still dependent on imaging.
Radiology 2007 245: 62-77 (DOI: 10.1148/radiol.2451051359); [Abstract] [Figures Only] [Full Text] [PDF]

Perspectives:

Michael A. Bowen, William E. Torres, and William C. Small: Nonphysician Providers in Radiology: The Emory University Experience
Nonphysician providers can expand their ever-increasing contributions from a variety of primary, tertiary, and critical care environments into the department of radiology and can improve the quality of service to patients as a result.
Radiology 2007 245: 3-6 (DOI: 10.1148/radiol.2451070575); [Full Text] [PDF]

Book Reviews:

: Essentials of Nuclear Medicine Imaging, 5th ed
Radiology 2007 245: 78 (DOI: 10.1148/radiol.2451072534); [Full Text] [PDF]

: Radiology: The Oral Boards Primer
Radiology 2007 245: 78-79 (DOI: 10.1148/radiol.2451072535); [Full Text] [PDF]

: Protocols for Multislice Helical Computed Tomography: The Fundamentals
Radiology 2007 245: 79 (DOI: 10.1148/radiol.2451072536); [Full Text] [PDF]

: MRI and CT of the Cardiovascular System, 2nd ed
Radiology 2007 245: 79 (DOI: 10.1148/radiol.2451072537); [Full Text] [PDF]

ORIGINAL RESEARCH:

Breast Imaging:

Lia Bartella, Sunitha B. Thakur, Elizabeth A. Morris, D. David Dershaw, Wei Huang, Eugenia Chough, Maria C. Cruz, and Laura Liberman: Enhancing Nonmass Lesions in the Breast: Evaluation with Proton (¹H) MR Spectroscopy
Our study data show that the information obtained at proton (¹H) MR spectroscopy may decrease the number of biopsy recommendations for benign enhancing nonmass lesions.
Radiology 2007 245: 80-87 (DOI: 10.1148/radiol.2451061639); [Abstract] [Figures Only] [Full Text] [PDF]

Richard L. Ellis, Andrew A. Meade, Michelle A. Mathiason, Kathy M. Willison, and Wende Logan-Young: Evaluation of Computer-aided Detection Systems in the Detection of Small Invasive Breast Carcinoma
A statistically significant difference was observed in study and image sensitivity in our mammography data set with small (<16 mm), noncalcified invasive breast malignancies between two commercially available computer-aided detection systems.
Radiology 2007 245: 88-94 (DOI: 10.1148/radiol.2451060760); [Abstract] [Full Text] [PDF]

Cardiac Imaging:

Gunnar K. Lund, Alexander Stork, Kai Muellerleile, Achim A. Barmeyer, Martin P. Bansmann, Meike Knefel, Ulrike Schlichting, Martin Müller, Pablo E. Verde, Gerhard Adam, Thomas Meinertz, and Maythem Saeed: Prediction of Left Ventricular Remodeling and Analysis of Infarct Resorption in Patients with Reperfused Myocardial Infarcts by Using Contrast-enhanced MR Imaging
An infarct size of 24% or more of left ventricular area predicted remodeling with high sensitivity and specificity at 8 months after acute myocardial infarction.
Radiology 2007 245: 95-102 (DOI: 10.1148/radiol.2451061219); [Abstract] [Figures Only] [Full Text] [PDF]

Charlotte Ebeling Barbier, Tomas Bjerner, Tomas Hansen, Jessika Andersson, Lars Lind, Johannes Hulthe, Lars Johansson, and Håkan Ahlström: Clinically Unrecognized Myocardial Infarction Detected at MR Imaging May Not Be Associated with Atherosclerosis
MR imaging–detected unrecognized myocardial infarctions were not associated with manifestations of significant atherosclerosis, increased intima-media thickness, C-reactive protein elevation, or traditional risk factors for coronary heart disease, which suggests that unrecognized myocardial infarctions might have a different pathogenesis from that of recognized myocardial infarctions or have the same pathogenesis but manifest at an earlier stage.
Radiology 2007 245: 103-110. Published online before print August 23 2007, 10.1148/radiol.2451061664 [Abstract] [Figures Only] [Full Text] [PDF]

Hatem Alkadhi, Lotus Desbiolles, Lars Husmann, Andre Plass, Sebastian Leschka, Hans Scheffel, Robert Vachenauer, Tiziano Schepis, Oliver Gaemperli, Thomas G. Flohr, Michele Genoni, Borut Marincek, Rolf Jenni, Philipp A. Kaufmann, and Thomas Frauenfelder: Aortic Regurgitation: Assessment with 64-Section CT
Our study demonstrates for the first time, to our knowledge, that planimetric measurements of the regurgitant orifice area during diastole with 64-section CT show a highly accurate correlation with classification of aortic regurgitation as determined with transthoracic echocardiography.
Radiology 2007 245: 111-121. Published online before print August 23 2007, 10.1148/radiol.2451061523 [Abstract] [Figures Only] [Full Text] [PDF]

Evidence-based Practice:

Jacob J. Visser, Marc R. H. M. van Sambeek, Taye H. Hamza, M. G. Myriam Hunink, and Johanna L. Bosch: Ruptured Abdominal Aortic Aneurysms: Endovascular Repair versus Open Surgery—Systematic Review
After adjustment for patients' hemodynamic condition at presentation, a benefit in 30-day mortality for endovascular repair compared with open surgery for patients with a ruptured abdominal aortic aneurysm was observed, but it was not statistically significant.
Radiology 2007 245: 122-129 (DOI: 10.1148/radiol.2451061204); [Abstract] [Figures Only] [Full Text] [PDF] [Supplemental Tables]

Experimental Studies:

Dingxin Wang, Affaan K. Bangash, Thomas K. Rhee, Gayle E. Woloschak, Tatjana Paunesku, Riad Salem, Reed A. Omary, and Andrew C. Larson: Liver Tumors: Monitoring Embolization in Rabbits with VX2 Tumors—Transcatheter Intraarterial First-Pass Perfusion MR Imaging
We have demonstrated that iterative transcatheter intraarterial first-pass perfusion MR imaging can depict serial reductions in liver tumor perfusion during transcatheter arterial embolization.
Radiology 2007 245: 130-139 (DOI: 10.1148/radiol.2451061689); [Abstract] [Figures Only] [Full Text] [PDF]

Gastrointestinal Imaging:

Mark E. Baker, Luca Bogoni, Nancy A. Obuchowski, Chandra Dass, Renee M. Kendzierski, Erick M. Remer, David M. Einstein, Pascal Cathier, Anna Jerebko, Sarang Lakare, Andrew Blum, Dina F. Caroline, and Michael Macari: Computer-aided Detection of Colorectal Polyps: Can It Improve Sensitivity of Less-Experienced Readers? Preliminary Findings
Results of our preliminary study suggest that computer-aided detection for CT colonography significantly improves the per-polyp detection for less-experienced readers.
Radiology 2007 245: 140-149 (DOI: 10.1148/radiol.2451061116); [Abstract] [Figures Only] [Full Text] [PDF]

Jasper Florie, Erwin Birnie, Rogier E. van Gelder, Sebastiaan Jensch, Brigitte Haberkorn, Joep F. Bartelsman, Annet van der Sluys Veer, Pleun Snel, Victor P. M. van der Hulst, Gouke J. Bonsel, Patrick M. M. Bossuyt, and Jaap Stoker: MR Colonography with Limited Bowel Preparation: Patient Acceptance Compared with That of Full-Preparation Colonoscopy
We found that men and women at increased risk for colorectal cancer preferred MR colonography with limited bowel preparation to colonoscopy with standard bowel preparation, both immediately after the examinations and 5 weeks later.
Radiology 2007 245: 150-159 (DOI: 10.1148/radiol.2451061244); [Abstract] [Figures Only] [Full Text] [PDF]

Parmbir S. Sandhu, Bonnie N. Joe, Fergus V. Coakley, Aliya Qayyum, Emily M. Webb, and Benjamin M. Yeh: Bowel Transition Points: Multiplicity and Posterior Location at CT are Associated with Small-Bowel Volvulus
The presence of multiple transition points and a posterior location of these transition points at CT in an adult with small-bowel obstruction are associated with volvulus (P < .005 and P < .05, respectively).
Radiology 2007 245: 160-167. Published online before print August 23 2007, 10.1148/radiol.2443061370 [Abstract] [Figures Only] [Full Text] [PDF]

Genitourinary Imaging:

Tara Anne Collidge, Peter Campbell Thomson, Patrick Barry Mark, James Phillip Traynor, Alan George Jardine, Scott Thomas William Morris, Keith Simpson, and Giles Hannibal Roditi: Gadolinium-enhanced MR Imaging and Nephrogenic Systemic Fibrosis: Retrospective Study of a Renal Replacement Therapy Cohort
These data support the reported association between gadolinium-enhanced MR imaging and development of nephrogenic systemic fibrosis in patients with established renal failure.
Radiology 2007 245: 168-175. Published online before print August 17 2007, 10.1148/radiol.2451070353 [Abstract] [Figures Only] [Full Text] [PDF]

B. Nicolas Bloch, Edna Furman-Haran, Thomas H. Helbich, Robert E. Lenkinski, Hadassa Degani, Christian Kratzik, Martin Susani, Andrea Haitel, Silvia Jaromi, Long Ngo, and Neil M. Rofsky: Prostate Cancer: Accurate Determination of Extracapsular Extension with High-Spatial-Resolution Dynamic Contrast-enhanced and T2-weighted MR Imaging—Initial Results
The combined approach of high-spatial-resolution dynamic contrast-enhanced MR imaging and high-spatial-resolution T2-weighted MR imaging at 1.5 T with a TNM staging accuracy of 95% offers an alternative to conventional prostate cancer staging that is based on results of standard clinical evaluations or findings on T2-weighted MR images alone.
Radiology 2007 245: 176-185. Published online before print August 23 2007, 10.1148/radiol.2451061502 [Abstract] [Figures Only] [Full Text] [PDF]

Rolf Wyttenbach, Antonio Braghetti, Michael Wyss, Mario Alerci, Lukas Briner, Paolo Santini, Luca Cozzi, Marcello Di Valentino, Marcus Katoh, Claudio Marone, Peter Vock, and Augusto Gallino: Renal Artery Assessment with Nonenhanced Steady-State Free Precession versus Contrast-enhanced MR Angiography
Compared with contrast-enhanced MR angiography, cardiac-triggered navigator-gated three-dimensional steady-state free precession MR angiography with slab-selective spin inversion has high sensitivity and high negative predictive value in the detection of hemodynamically significant ( $≥$ 50%) renal artery stenosis without use of contrast material.
Radiology 2007 245: 186-195. Published online before print August 23 2007, 10.1148/radiol.2443061769 [Abstract] [Figures Only] [Full Text] [PDF]

Molecular Imaging:

Alexis Jacquier, Charles B. Higgins, Alastair J. Martin, Loi Do, David Saloner, and Maythem Saeed: Injection of Adeno-associated Viral Vector–Encoding Vascular Endothelial Growth Factor Gene in Infarcted Swine Myocardium: MR Measurements of Left Ventricular Function and Strain
Intramyocardial injection of vascular endothelial growth factor genes after infarction prevented left ventricular remodeling and improved wall thickening and circumferential peak systolic strain.
Radiology 2007 245: 196-205 (DOI: 10.1148/radiol.2451061077); [Abstract] [Figures Only] [Full Text] [PDF]

Shenghong Ju, Gao-Jun Teng, Haihua Lu, Yu Zhang, Aifeng Zhang, Feng Chen, and Yicheng Ni: In Vivo MR Tracking of Mesenchymal Stem Cells in Rat Liver after Intrasplenic Transplantation
In the in vivo study, magnetically labeled stem cells underwent intrasplenic transplantation and were successfully detected in the liver by measuring signal intensity decrease of the whole organ.
Radiology 2007 245: 206-215. Published online before print August 23 2007, 10.1148/radiol.2443061290 [Abstract] [Figures Only] [Full Text] [PDF]

Musculoskeletal Imaging:

Sylvain R. Duc, Christian W. A. Pfirrmann, Marius R. Schmid, Marco Zanetti, Peter P. Koch, Fabian Kalberer, and Juerg Hodler: Articular Cartilage Defects Detected with 3D Water-Excitation True FISP: Prospective Comparison with Sequences Commonly Used for Knee Imaging
Although the increased contrast-to-noise ratio obtained with the optimized true fast imaging with steady-state precession sequence did not necessarily translate into better diagnostic performance under clinical conditions, it may be helpful for advanced cartilage evaluation, such as volumetry, which requires excellent contrast between cartilage and joint fluid for segmentation.
Radiology 2007 245: 216-223. Published online before print August 23 2007, 10.1148/radiol.2451060990 [Abstract] [Figures Only] [Full Text] [PDF]

Neuroradiology:

Jeffrey R. Petrella, Lihong Wang, Sriyesh Krishnan, Melissa J. Slavin, Steven E. Prince, Thanh-Thu T. Tran, and P. Murali Doraiswamy: Cortical Deactivation in Mild Cognitive Impairment: High-Field-Strength Functional MR Imaging
Because activation in the posteromedial cortices (PMCs) significantly correlated with neuropsychological test performance while activation in the hippocampus did not, activation in the PMC may represent a better functional MR imaging marker of disease severity than activation in the hippocampus.
Radiology 2007 245: 224-235 (DOI: 10.1148/radiol.2451061847); [Abstract] [Figures Only] [Full Text] [PDF]

Pediatric Imaging:

Ana Maria Gaca, Donald P. Frush, Susan M. Hohenhaus, Xuemei Luo, Anjanett Ancarana, Angela Pickles, and Karen S. Frush: Enhancing Pediatric Safety: Using Simulation to Assess Radiology Resident Preparedness for Anaphylaxis from Intravenous Contrast Media
It is evident that the level of preparedness for pediatric radiology anaphylactic emergencies is insufficient at the resident level.
Radiology 2007 245: 236-244 (DOI: 10.1148/radiol.2451061381); [Abstract] [Figures Only] [Full Text] [PDF]

Technical Developments:

James W. Goldfarb, Sheeba Arnold, and Jing Han: Recent Myocardial Infarction: Assessment with Unenhanced T1-weighted MR Imaging
The detection and characterization of a recent myocardial infarction on a segmental basis can be performed by using unenhanced T1-weighted MR imaging.
Radiology 2007 245: 245-250 (DOI: 10.1148/radiol.2451061590); [Abstract] [Figures Only] [Full Text] [PDF]

Rutger W. van der Meer, Joost Doornbos, Sebastian Kozerke, Michael Schär, Jeroen J. Bax, Sebastiaan Hammer, MSc, Johannes W. A. Smit, Johannes A. Romijn, Michaela Diamant, Luuk J. Rijzewijk, Albert de Roos, and Hildo J. Lamb: Metabolic Imaging of Myocardial Triglyceride Content: Reproducibility of ¹H MR Spectroscopy with Respiratory Navigator Gating in Volunteers
Respiratory navigator–gated and electrocardiographically (ECG)-triggered hydrogen 1 (¹H) MR spectroscopy of the human heart to assess myocardial triglyceride content showed substantially better spectral resolution and reproducibility than ECG-triggered ¹H MR spectroscopy without respiratory motion correction.
Radiology 2007 245: 251-257 (DOI: 10.1148/radiol.2451061904); [Abstract] [Figures Only] [Full Text] [PDF]

Jie Zhang, Joel G. Fletcher, Terri J. Vrtiska, Armando Manduca, Jess L. Thompson, Madhavan L. Raghavan, Robert J. Wentz, and Cynthia H. McCollough: Large-Vessel Distensibility Measurement with Electrocardiographically Gated Multidetector CT: Phantom Study and Initial Experience
In a pulsating vessel phantom with ideal imaging conditions and an electrocardiographically gated CT angiographic protocol, images of phantom vessel distensibility were generated that reflected distensibility as measured by using our optical reference standard.
Radiology 2007 245: 258-266 (DOI: 10.1148/radiol.2451060530); [Abstract] [Figures Only] [Full Text] [PDF]

Thoracic Imaging:

Ha Young Kim, Young Mog Shim, Kyung Soo Lee, Joungho Han, Chin A Yi, and Yoon Kyung Kim: Persistent Pulmonary Nodular Ground-Glass Opacity at Thin-Section CT: Histopathologic Comparisons
About 75% of pure persistent pulmonary ground-glass opacity (GGO) nodules turn out to be broncholoalveolar cell carcinoma (BAC) or adenocarcinoma with predominant BAC component, and these do not manifest distinguishing morphologic features on thin-section CT images that allow their differentiation from other GGO nodules with different histopathologic diagnoses.
Radiology 2007 245: 267-275 (DOI: 10.1148/radiol.2451061682); [Abstract] [Figures Only] [Full Text] [PDF]

Vascular and Interventional Radiology:

Reto Sutter, Daniel Nanz, Amelie M. Lutz, Thomas Pfammatter, Burkhardt Seifert, Anja Struwe, Christina Heilmaier, Dominik Weishaupt, Borut Marincek, and Jürgen K. Willmann: Assessment of Aortoiliac and Renal Arteries: MR Angiography with Parallel Acquisition versus Conventional MR Angiography and Digital Subtraction Angiography
The sensitivity of fast MR angiography for the diagnosis of aortoiliac and renal arterial stenoses is not significantly different from that of conventional MR angiography.
Radiology 2007 245: 276-284. Published online before print August 23 2007, 10.1148/radiol.2451062081 [Abstract] [Figures Only] [Full Text] [PDF] [Supplemental Tables]

SIGNS IN IMAGING:

Rakesh Sinha: Naclerio's V Sign
Naclerio's V sign can be seen on frontal radiographs of the chest as a V-shaped air lucency in the left lower mediastinal area.
Radiology 2007 245: 296-297 (DOI: 10.1148/radiol.2451042197); [Figures Only] [Full Text] [PDF]

DIAGNOSIS PLEASE:

Prachi P. Agarwal, Jean M. Seely, and Frederick R. K. Matzinger: Case 130
Radiology 2007 245: 285-287 (DOI: 10.1148/radiol.2451042032); [Figures Only] [Full Text] [PDF]

Justin Q. Ly, Gavin W. Arnett, and Douglas P. Beall: Case 122: Giant Cell Tumor of the Second Metatarsal
Radiographic features include a large and often aggressive-appearing osteolytic tumor that is usually eccentric and located at the end of a bone or involves the entire shaft of small tubular bones, such as the metatarsals.
Radiology 2007 245: 288-291 (DOI: 10.1148/radiol.2451031776); [Figures Only] [Full Text] [PDF]

Josephine Pressacco, Tracy L. Elliot, Yves Provost, Narinder Paul, and Naeem Merchant: Case 123: Cardiac Hemosiderosis
Cardiovascular MR imaging is a noninvasive modality used to evaluate myocardial iron overload burden and assess cardiac function.
Radiology 2007 245: 292-295 (DOI: 10.1148/radiol.2451040867); [Figures Only] [Full Text] [PDF]

DEPARTMENTS:

: Abstracts of Current Literature
Radiology 2007 245: 305-306 (DOI: 10.1148/radiol.2451072533); [Full Text] [PDF]

: This Month in Radiology
Radiology 2007 245: 14-15 (DOI: 10.1148/radiol.2451200714); [PDF]

: Publication Information for Authors
Radiology 2007 245: [Full Text]