Objective: We evaluated the role of helical CT angiography rendering techniques in the assessment of renal artery fibromuscular dysplasia.
Materials And Methods: Twenty hypertensive patients (mean age, 56 years) with angiographically proven renal artery fibromuscular dysplasia were studied by CT angiography. The acquisition protocol was collimation, 3 mm; table speed, 3 mm/sec; and incremental algorithm, one.
The results of magnetic resonance imaging (MRI) in the investigation of coarctation of the aorta were assessed and compared with those of cardiac catheterisation. This was a retrospective study of a series of 24 patients aged 14 +/- 4 years with a coarctation treated and documented by MRI. The investigation was performed with a high field 1.
View Article and Find Full Text PDFPurpose: To evaluate the role of helical CT angiography (CTA) in the detection of renal artery stenosis in hypertensive patients.
Materials And Methods: We studied 300 hypertensive patients (50 prospectively and 250 consecutively) with CTA and arteriography (n = 118). Helical acquisition (collimation 3 mm; pitch = 1, 20 seconds acquisition time) was performed 20-45 seconds after contrast injection (300 mgl/ml; 120 ml, 4 ml/sec).
Purpose: To evaluate the potential role of spiral computed tomographic (CT) angiography in the diagnosis of popliteal artery disease.
Materials And Methods: In 26 consecutive patients referred for popliteal arteriography, the authors performed additional spiral CT angiography with the following protocol: 3-5-mm collimation, 4-6 mm/sec table speed, and 2-3-mm overlap during 32 seconds, with use of 110 mL of contrast medium. Axial transverse sections and shaded surface display and multiplanar reformation reconstruction images were analyzed.