AJR. American journal of roentgenology
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AJR Am J Roentgenol · Dec 2001
Focal radial styloid abnormality as a manifestation of de Quervain tenosynovitis.
de Quervain disease is a stenosing tenosynovitis of the first dorsal wrist compartment. The purpose of this study was to determine whether focal radial styloid abnormality (cortical erosion, sclerosis, or periosteal bone apposition) as shown by radiography can be an indicator of de Quervain tenosynovitis. ⋯ Focal radial styloid abnormality is an indicator of de Quervain stenosing tenosynovitis of the wrist.
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AJR Am J Roentgenol · Nov 2001
Functional MR imaging of regional brain activation associated with the affective experience of pain.
Current models propose that the experience of pain includes both sensory and affective components. Our purpose was to use functional MR imaging to determine areas of the brain engaged by the affective dimension of pain. ⋯ Compared with the basic sensory processing of pain, the affective dimension of pain activates a cortical network that includes the right superior frontal gyrus, the right cuneus, and a large area of the anterior cingulate gyrus.
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AJR Am J Roentgenol · Nov 2001
Fast three-point dixon MR imaging using low-resolution images for phase correction: a comparison with chemical shift selective fat suppression for pediatric musculoskeletal imaging.
The purpose of this study is to describe and to implement a new fast three-point Dixon MR imaging sequence with online image reconstruction, and to compare this sequence with conventional chemical shift selective (CHESS) suppression of fat in pediatric musculoskeletal imaging. ⋯ Compared with CHESS, the new fast three-point Dixon sequence with online image reconstruction provides superior fat suppression and lesion conspicuity and can be routinely used in pediatric musculoskeletal imaging.
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AJR Am J Roentgenol · Nov 2001
Abdominal wall hernias: cross-sectional imaging signs of incarceration determined with sonography.
The aim of this study was to determine with sonography whether distinct cross-sectional imaging signs exist that may differentiate between incarcerated and nonincarcerated abdominal wall hernias. ⋯ Cross-sectional imaging signs indicating hernial incarceration included free fluid in the hernial sac, bowel wall thickening in the hernia, fluid in the herniated bowel loop, and dilated bowel loops in the abdomen. Sonography is an appropriate cross-sectional imaging modality for detecting these signs that are helpful in diagnosing patients with atypical clinical presentations.
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AJR Am J Roentgenol · Sep 2001
Comparative StudyDetection of malignant hepatic tumors: comparison of gadolinium-and ferumoxide-enhanced MR imaging.
The purpose of our study was to compare how well gadolinium-enhanced and ferumoxide-enhanced MR imaging reveal malignant hepatic tumors. ⋯ Gadolinium-enhanced MR imaging outperforms ferumoxide-enhanced MR imaging in revealing malignant hepatic tumors. Gadolinium-enhanced MR imaging is recommended, particularly for patients with cirrhosis.