IMPLEMENTATION OF A DIGITAL IMAGE SUPERPOSITION ALGORITHM FOR RADIONUCLIDE IMAGES - ASSESSMENT OF ITS ACCURACY AND REPRODUCIBILITY
- 1 January 1978
- journal article
- research article
- Vol. 19 (3) , 316-319
Abstract
An operator-interactive algorithm to achieve superposition of [human] organ images was used with a dedicated nuclear medicine computer system. Its purpose was to achieve organ registration in 128 .times. 128 digitized images before a direct numerical comparison of regional distribution of a deposited radiotracer was performed. Accuracy and reproducibility of the algorithm for myocardial images was tested by 4 operators, using a set of 28 image pairs in which the relative position of the heart differed by more than 10 mm for each pair. Comparing their results with known displacements on 2 occasions provided an assessment of these 2 important parameters. Accuracy and reproducibility for superposing myocardial images by this digital technique were well within the spatial resolution of the imaging system for the 201Tl tracer studied.This publication has 2 references indexed in Scilit:
- Myocardial imaging with thallium-201 at rest and during exercise. Comparison with coronary arteriography and resting and stress electrocardiography.Circulation, 1977
- Thallium-201 myocardial perfusion imaging at rest and during exercise. Comparative sensitivity to electrocardiography in coronary artery disease.Circulation, 1977