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PURPOSE To develop and evaluate a sequence for breath-hold three-dimensional gadolinium-enhanced magnetic resonance (MR) angiography of the abdominal aorta. MATERIALS AND METHODS In 63 patients, the abdominal aorta and its branches were imaged for 29, 43, or 58 seconds with breath holding. A fast spoiled gradient-echo sequence was used at 1.5 T during(More)
OBJECTIVE Our objective was to evaluate image quality and preliminary clinical experience with three-dimensional gadolinium-enhanced MR angiography of the thoracic aorta. SUBJECTS AND METHODS Ninety patients with suspected thoracic aorta pathology underwent 97 MR examinations at 1.5 T with a 4-min, three-dimensional spoiled gradient-echo techniques.(More)
PURPOSE To report the initial clinical experience with the use of n-butyl cyanoacrylate (NBCA) for embolization of acute arterial hemorrhage from varied etiologies and at varied anatomic sites. MATERIALS AND METHODS Sixteen patients who demonstrated active extravasation of contrast material and/or arterial abnormality underwent NBCA embolization. Sites of(More)
PURPOSE Describe the principles and results of percutaneous treatment of ischemic complications of aortic dissection. MATERIALS AND METHODS Twenty-four patients with aortic dissection complicated by ischemic compromise of the liver or bowel (n = 15), kidney (n = 18), or lower extremity (n = 13) were evaluated by means of aortography, intravascular(More)
PURPOSE To determine the anatomic, hemodynamic, and radiologic characteristics of branch-vessel compromise in patients with aortic dissection. MATERIALS AND METHODS Sixty-two patients with aortic dissection were evaluated with aortography (n = 62), intravascular ultrasound (US) (n = 35), and manometry (n = 56). Branch-vessel compromise with ischemia was(More)
Interventional radiologists receive nonuniform occupational radiation doses, with relatively high doses to the head and extremities and low doses to the trunk, which is protected by a lead apron. Twenty-eight interventional radiologists from 17 institutions wore thermoluminescent dosimeters over their collars and under their aprons for a 2-month period. The(More)
We reviewed our experience with 158 consecutive patients who underwent either percutaneous gastrostomy or percutaneous gastroenterostomy during a 2-year period. The catheters used included Foley catheters (36), Cope-type gastric catheters (86), or Carey-Alzate-Coons gastrojejunostomy catheters (36). Gastrojejunostomy tubes were placed in patients with(More)
OBJECTIVE Pulmonary embolism (PE) is a major problem in patients with multiple injuries. We present our experience with early placement of prophylactic vena caval filters (VCFs). DESIGN Prospective study group with historical control. MATERIALS AND METHODS From March 1993 to December 1993, VCFs were placed in 40 consecutive patients with three or more(More)
This study was performed to define the color Doppler sonographic appearance of normal and abnormal hemodialysis vascular access and to compare color Doppler sonography with angiography. Twenty-eight patients (nine with Brescia-Cimino fistulas and 19 with synthetic grafts) were imaged with digital subtraction angiography and color Doppler sonography. The(More)