SIMULTANEOUS DUAL MYOCARDIAL IMAGING WITH IODINE-123-β-METHYL IODOPHENYL-PENTADECANOIC ACID (BMIPP) AND THALLIUM-201 IN PATIENTS WITH CORONARY HEART DISEASE
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To assess the clinical value of simultaneous dual myocardial imaging with iodine-123-β-methyl-iodophenyl-pentadecanoic acid (123I-BMIPP) and thallium-201 (201Tl), myocardial imaging was performed at rest and during exercise in seven patients with coronary heart disease. When 123I-BMIPP and 201Tl images were compared, the initial exercise and resting images agreed 87% and 64%, respectively. In the initial resting images, the regional uptake of 123I-BMIPP was frequently less than that of 201Tl. The incidence of exercise-induced reversible defects by 201Tl in the Tl>BMIPP regions was significantly higher than that in the Tl=BMIPP regions (57% vs 4%, p<0.01) and the incidence of coronary narrowing of more than 90% in the Tl>BMIPP regions was also significantly higher than that in the Tl=BMIPP regions (91% vs 38%, p<0.01). In addition, this disparity (Tl>BMIPP) was found more frequently in regions with abnormal wall motion than in regions with normal wall motion (hypokinetic regions; 68%, severe hypokinetic or akinetic regions; 50%, vs normokinetic regions; 4%, p<0.01). In contrast, the uptake of 123I-BMIPP correlated closely with that of 201Tl in normal myocardium and the uptake of both 123I-BMIPP and 201Tl was severely reduced in myocardium with severe ischemia during exercise and prior infarction. These results indicate that dual myocardial imaging with 123I-BMIPP and 201Tl may provide a unique means of identifying patients with metabolically disturbed myocardium, such as hibernating and stunned myocardium.rights:社団法人日本循環器学会rights:本文データは学協会の許諾に基づきJournal Archiveから複製したものである
- 社団法人 日本循環器学会の論文
- 1993-00-00
社団法人 日本循環器学会 | 論文
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