AJR. American journal of roentgenology
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AJR Am J Roentgenol · Jan 2007
Comparative StudyCombined use of diffusion-weighted MRI and 1H MR spectroscopy to increase accuracy in prostate cancer detection.
The objective of our study was to establish the sensitivity and specificity for prostate cancer detection using a combined 1H MR spectroscopy and diffusion-weighted MRI approach. ⋯ When voxels containing > or = 70% tumor are considered positive, the combined use of MR spectroscopy and diffusion-weighted MRI increases the specificity for prostate cancer detection while retaining the sensitivity compared with MR spectroscopy alone or diffusion-weighted MRI alone.
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AJR Am J Roentgenol · Jan 2007
Peripheral tear of the triangular fibrocartilage: depiction with MR arthrography of the distal radioulnar joint.
Although central tears of the triangular fibrocartilage are easily seen on imaging, peripheral tears of the ulnar attachment are frequently missed. The aim of this study was to evaluate the accuracy of MR arthrography of the distal radioulnar joint in depiction of peripheral tears of the triangular fibrocartilage. ⋯ MR arthrography of the distal radioulnar joint is accurate in depiction of peripheral tears of the ulnar attachment of the triangular fibrocartilage. These tears often appear as noncommunicating tears extending from the distal radioulnar joint into the triangular fibrocartilage.
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AJR Am J Roentgenol · Jan 2007
ECG-gated 64-MDCT angiography in the differential diagnosis of acute chest pain.
The most important differential diagnoses of acute chest pain include myocardial infarction, aortic dissection, and pulmonary embolism. The purpose of this study was to evaluate the diagnostic value of an ECG-gated 64-MDCT angiography protocol for simultaneous assessment of the pulmonary arteries, coronary arteries, and aorta within a single breath-hold. ⋯ With current techniques, ECG-gated CT angiography of the entire chest has very good image quality. The protocol proved helpful in the differential diagnosis of acute chest pain.
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AJR Am J Roentgenol · Jan 2007
High-resolution MRI in evaluation of the surgical anatomy of the esophagus and posterior mediastinum.
The purpose of this study was to use high-resolution MRI to evaluate the surgical anatomy of the posterior mediastinum, in particular the esophagus and its relation to the surrounding structures. The aim was to familiarize radiologists with the appearance of structures considered important in planning surgical resection of the esophagus. ⋯ High-resolution MRI of the posterior mediastinum provides detailed anatomic information, delineating structures not visible on other forms of cross-sectional imaging. It can provide important information for planning surgical intervention.