Title :
Developments towards real-time frame-to-frame automatic contour detection on echocardiograms
Author :
Bosch, J.G. ; Reiber, J.H.C. ; van Burken, G. ; Gerbrands, J.J. ; Kostov, A. ; van de Goor, A.J. ; van Daele, M.E.R.M. ; Roelandt, J.R.T.C.
Abstract :
An automated contour detection method has been developed for the assessment of left ventricular wall motion from short-axis transesophageal echocardiograms. The method is based on minimum-cost contour detection using an iterative approach and implicit knowledge about left ventricular geometry. The contour detection takes about 4 seconds per image on a 20-MHz Compaq 386. This automated method has been evaluated by comparison of automatically detected contours with contours drawn manually on 480 images. Inter- and intra-observer variabilities were determined for both types of contours. Performance of the manual drawing was only slightly better than automatic detection. This technique is now being extended towards frame-to-frame contour detection. Very promising results were obtained in a pilot study on a high-quality echo sequence
Keywords :
acoustic imaging; biomedical ultrasonics; cardiology; computerised picture processing; medical diagnostic computing; 20 MHz; 4 s; Compaq 386; high-quality echo sequence; implicit knowledge; iterative approach; left ventricular geometry; manual drawing; medical diagnostic imaging; minimum-cost contour detection; observer variability; real-time frame-to-frame automatic contour detection; short-axis transesophageal echocardiograms; Costs; Dynamic programming; Geometry; Hardware; Image quality; Iterative methods; Monitoring; Motion detection; Muscles; Workstations;
Conference_Titel :
Computers in Cardiology 1990, Proceedings.
Conference_Location :
Chicago, IL
Print_ISBN :
0-8186-2225-3
DOI :
10.1109/CIC.1990.144251
