- Dual-Isotope SPECT Imaging with Thallium-201 and Technetium-99m MIBI in Detecting Coronary Artery Disease.
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Gyu Gwang Lee, Ihn Ho Cho, Hyoung Woo Lee, Jong Sun Park, Kyu Chang Won, Dong Gu Sin, Young Jo Kim, Bong Sup Shim
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Yeungnam Univ J Med. 1999;16(1):101-107. Published online June 30, 1999
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DOI: https://doi.org/10.12701/yujm.1999.16.1.101
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 Abstract
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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.
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Yeungnam University College of Medicine
