Title :
Transesophageal echo computer tomography: a new method for dynamic 3-D imaging of the heart (echo-CT)
Author :
Wollschlager ; Zeiher, A.M. ; Klein, H. ; Kasper, W. ; Wollschlager, S. ; Geibel, A. ; Just, H.
Author_Institution :
Freiburg Univ., Germany
Abstract :
Summary form only given. A device for the acquisition of standardized parallel echocardiographic imaging planes covering the entire heart and the large vessels has been developed. It consists of a conventional transesophageal probe with an additional fully flexible distal portion, which serves as housing for a freely moving ultrasonic transducer. The transducer is pulled back from the most distal part of the tube in 0.5-mm increments, providing exact parallel and equidistant imaging planes. At each plane, one complete cardiac cycle is recorded with ECG triggering delivering images in 30-ms intervals corresponding to the echocardiographic frame rate and cover the dynamic cardiac anatomy of one heart cycle. Thereafter, a dedicated software for dynamic 3-D reconstruction allows the computation of any desired tomographic view of the beating heart and the large vessels in real time
Keywords :
acoustic imaging; biomedical ultrasonics; computerised tomography; 30 ms; ECG triggering; beating heart; dynamic 3D imaging; echo-CT; equidistant imaging planes; freely moving ultrasonic transducer; large vessels; medical diagnostic imaging; real time computation; standardized parallel echocardiographic imaging planes; tomographic view computation; transesophageal echo computer tomography; Acoustic imaging; Anatomy; Echocardiography; Electrocardiography; Heart; Image reconstruction; Probes; Tomography; Ultrasonic imaging; Ultrasonic transducers;
Conference_Titel :
Computers in Cardiology 1989, Proceedings.
Conference_Location :
Jerusalem
Print_ISBN :
0-8186-2114-1
DOI :
10.1109/CIC.1989.130474
