| Autor: |
Brady, Thomas J., O'Keefe, Dennis D., Okada, Robert D., Jacocks, M. Alex, Johnson, Robert G., Geffin, Gillian A., Merrill, Dan, Strauss, H. William, Daggett, Willard M., Pohost, Gerald M. |
| Zdroj: |
European Journal of Nuclear Medicine and Molecular Imaging; October 1983, Vol. 8 Issue: 10 p425-430, 6p |
| Abstrakt: |
Seven-pinhole myocardial tomography has been reported to enhance the accuracy of thallium-201 (201Tl) studies in detecting patients with coronary artery disease. To determine if this approach can accurately assess regional 201Tl kinetics, 12 dogs with temporary occlusion (mean 15 min) of either the left anterior descending (LAD) (n=6) or left circumflex (LCX) (n=6) coronary artery were studied. Thallium-201 was injected and serial 7-pinhole images were acquired during occlusion and following reflow (mean duration 175 min). Time-activity analysis was obtained from normal and ischemic regions of interest in the central pinhole image and the reconstructed, tomographic images (TOMO-ROI). Time-activity data from corresponding normal and ischemic regions were also obtained using a circumferential graph program (TOMO-MAX). In addition, regional myocardial 201Tl activity was recorded continuously with a cadmium telluride radiation probe sutured directly to the posterior myocardial wall. |
| Databáze: |
Supplemental Index |
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