APPLICATION OF ART3 TO SEVEN PINHOLE TOMOGRAPHY.
van Giessen, John W., de Graaf, Cornelis N., Viergever, Max A.
Delft Prog Rep 9 (1), p. 36-48
Abstract
Cardiac emission tomography using a seven pinhole collimator has received only little appreciation as a diagnostic imaging technique. The main reasons are the limited angular sampling of the seven pinhole device and the difficulties encountered in properly positioning the patient relative to the collimator/camera system. In order to overcome these problems, we have developed a modified ART3 algorithm for reconstruction of the radioactivity distribution in the heart. The method is well suited for limited angle tomography.