Direct Identification of Patency Achieved by a Bi-Directional Glenn Shunt Procedure Images by Volume Rendering Using Electron-Beam Computed Tomography

• Published in: JAPANESE CIRCULATION JOURNAL Vol. 65; no. 5; pp. 457 - 461
• Main Authors: Funabashi, Nobusada, Rubin, Geoffrey D.
• Format: Journal Article
• Language: English
• Published: Kyoto The Japanese Circulation Society 01.05.2001; Japanese Circulation Society
• Subjects: Adult; Bi-directional Glenn shunt; Biological and medical sciences; Cardiology. Vascular system; Congenital heart diseases. Malformations of the aorta, pulmonary vessels and vena cava; Electron-beam computed tomography (EBCT); Female; Heart; Humans; Hypoplastic Left Heart Syndrome - surgery; Medical sciences; Patency; Pulmonary Artery - surgery; Tomography, X-Ray Computed; Vena Cava, Superior - surgery; Volume rendering (VR); Human; Hypoplasia; Prognosis; Radiodiagnosis; Electron beam; Cardiovascular disease; Congenital disease; Case study; Left heart; Treatment; Three dimensional representation; Heart disease; Surgery; Glenn operation; Medical imagery; Computerized axial tomography
• ISSN: 0047-1828; 1347-4839
• DOI: 10.1253/jcj.65.457

The present study aimed to identify the patency achieved by a bi-directional Glenn shunt procedure by shaded volume rendering (VR) images using electron-beam computed tomography (EBCT). A Damus Kay-Stanzel type procedure was performed on a female with hypoplastic left heart syndrome who later received a bi-directional Glenn shunt to increase pulmonary blood flow. In considering the characteristics of the bi-directional Glenn shunt procedure, in which the superior vena cava is connected to the right pulmonary artery, an early phase acquisition protocol with injection of contrast material from the right cubital vein using the step volume scan mode of EBCT was planned to acquire blood flow information. Excellent spatial resolution volume data of the heart and great vessels was obtained from which 3-dimensional images were made. Bi-directional Glenn shunt flow could be observed directly and the complex morphology and relationships between adjacent structures were revealed by 3-dimensional VR imaging. The combination of EBCT and VR can provide useful information to evaluate congenital heart diseases. (Jpn Circ J 2001; 65: 457 - 461)