AJR. American journal of roentgenology
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This study was undertaken to determine the incidence of low attenuation values in intraperitoneal hemorrhage, which could be confused with ascites. ⋯ Low attenuation measurements for acute hemoperitoneum represented a common finding that was not attributable to technical factors or underlying anemia. Fluid with attenuation values less than 20 H in acute trauma should not be dismissed as ascitic fluid.
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AJR Am J Roentgenol · May 1996
Acute rupture of the diaphragm due to blunt trauma: diagnostic sensitivity and specificity of CT.
The purpose of this study was to determine the diagnostic sensitivity and specificity of CT in detecting acute rupture of the diaphragm after blunt trauma. ⋯ CT is highly specific in diagnosing acute diaphragmatic rupture and detects approximately two thirds of acute diaphragmatic ruptures after blunt trauma.
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AJR Am J Roentgenol · Apr 1996
Breath-hold ultrafast three-dimensional gadolinium-enhanced MR angiography of the aorta and the renal and other visceral abdominal arteries.
The objectives of this study were to develop and show the efficacy of a breath-hold ultrafast three-dimensional (3D) spoiled gradient-echo (SPGR) gadolinium-enhanced MR angiographic technique for imaging the aorta and the renal and other visceral arteries of the abdomen; and to compare breath-hold ultrafast 3D SPGR with two-dimensional (2D) time-of-flight (TOF) and non-breath-hold ultrafast 3D SPGR in the same patients. ⋯ Breath-hold ultrafast 3D SPGR when combined with 2D TOF accurately identified and graded all (51 of 51) renal, celiac, superior mesenteric, and inferior mesenteric artery stenoses or occlusions.
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AJR Am J Roentgenol · Apr 1996
Semimembranosus-tibial collateral ligament bursitis: MR imaging findings.
The purpose of this paper is to describe the MR imaging characteristics of semimembranosus-tibial collateral ligament (SMTCL) bursitis. ⋯ SMTCL bursitis has a characteristic MR imaging appearance of fluid draped over the semimembranosus tendon in the shape of an inverted U. This entity can clinically mimic internal derangement of the knee, typically causing pain more superior and posterior to that of pes anserinus bursitis. MR imaging is useful in diagnosing SMTCL bursitis and avoiding unnecessary knee arthroscopy.
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AJR Am J Roentgenol · Apr 1996
Breast imaging reporting and data system standardized mammography lexicon: observer variability in lesion description.
The American College of Radiology has recommended the Breast Imaging Reporting and Data System (BI-RADS) as a standardized scheme for describing mammographic lesions. The objective of this study was to measure inter- and intraobserver variabilities of radiologists' descriptions of mammographic lesions with the BI-RADS standardized lexicon. ⋯ BI-RADS is moderately successful in providing a standardized language for physicians to describe lesion morphology. Efforts to reevaluate specific terms and the diagnostic significance assigned to calcification descriptors may prove useful in maintaining the promise of improved quality with the BI-RADS standardized mammography lexicon.