A series of abdominal radiographs were taken in eight normal volunteers after the ingestion of sodium tyropanoate (Bilopaque). These showed nonabsorbed sodium tyropanoate to have a granular appearance, while the conjugated form had a smooth homogeneous appearance. The appearance of conjugated sodium tyropanoate in the bowel has the same diagnostic significance as conjugated iopanoic acid in the presence of a nonvisualized gallbladder. It indicates that the contrast material has passed through the hepatic ductal system and that there has been an opportunity for the gallbladder to opacify.

Adult↗

PubMedDate not supplied

Venous prosthetic valves. The first step toward an investigation in the canine model.

Bioprosthetic valves were surgically placed in the inferior vena cava of four canines as a first step in the investigation of prosthetic valves for the treatment of nonobstructive chronic venous stasis. Valve patency and thrombus formation involving either the valve or the IVC was evaluated by serial follow-up inferior vena cavagrams in each canine. No thrombus occurred in any of the canines as observed at six months in two canines and eight months in two canines. The ultimate goal of this and other ongoing investigations is to develop a valvular prosthesis which may be placed into the venous system for the management of nonobstructive chronic venous stasis.

Animals↗

PubMedDate not supplied

Duplex sonography in embolotherapy of external carotid artery traumatic aneurysms.

Explore the source record for details and available documents.

Adolescent↗

PubMedDate not supplied

The non-invasive vascular laboratories: where should they go?

Explore the source record for details and available documents.

Centralized Hospital Services↗

PubMedDate not supplied

Metrizamide shuntography for evaluation of shunt malfunction in hydrocephalus.

Ventricular shunts were evaluated by a shuntographic technique using metrizamide for the contrast material and delayed spot films and computed tomography (CT) to evaluate shunt function. Thirty hydrocephalic patients were studied who had clinical presentations of shunt malfunction. Fifty-two shuntograms were obtained; most demonstrated the cause of shunt malfunction. No contrast-related complications resulted from the procedure. Diagnostic accuracy was greatly improved by this method, since both anatomic and functional evaluations could be performed. In patients with normal studies, unnecessary surgery was eliminated; in abnormal shuntograms, the duration of surgery and the likelihood of complications were reduced because the surgeons knew the exact anatomic derangements to be corrected.

Cerebrospinal Fluid Shunts↗