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JYMS : Journal of Yeungnam Medical Science

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Gyu Gwang Lee 1 Article
Dual-Isotope SPECT Imaging with Thallium-201 and Technetium-99m MIBI in Detecting Coronary Artery Disease.
Gyu Gwang Lee, Ihn Ho Cho, Hyoung Woo Lee, Jong Sun Park, Kyu Chang Won, Dong Gu Sin, Young Jo Kim, Bong Sup Shim
Yeungnam Univ J Med. 1999;16(1):101-107.   Published online June 30, 1999
DOI: https://doi.org/10.12701/yujm.1999.16.1.101
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We evaluated the results of sequential SPECT dual-isotope imaging with Tl-201 and Tc-99m MIBI in 24 patients, all of whom also had coronary angiography within the past one month. Coronary angiography showed that 12 patients had no CAD, 4 patients had one-vessel CAD, 7 patients had two-vessel CAD and 1 patient had three-vessel CAD. Serial studies of resting Tl-201 and dipyridamole stress Tc-99m MIBI were completed within 2 hours. When more then 50% of coronary artery narrowing was considered significant. The overall sensitivity and specification of CAD detection were 91.7%. The sensitivity of CAD detection in patients with one-vessel and multi-vessel diseases was 75% and 100%, respectively. Therefore, sequential dual-isotope SPECT demonstrated high sensitivity and specificity of CAD detection. In conclusion, sequential dual-isotope imaging is feasible and can be completed in a short time and may therefore enhance laboratory throughput and patient convenience.

JYMS : Journal of Yeungnam Medical Science