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KURA > C. 医薬保健学域・研究域/医・薬学部/医学系研究科 > c10. 学術雑誌掲載論文(医・保健) > 1. 査読済論文(医学・保健) >


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タイトル: How precisely do SPECT images reflect tracer uptake in myocardial infarction? A comparison of thallium-201 and technetium-99m using a myocardial phantom
著者: Onoguchi, Masahisa
Maruno, Hirotaka
Takayama, Teruhiko link image
Murata, Hajime
小野口, 昌久
髙山, 輝彦
発行日: 1998年12月
出版社(者): Society of Nuclear Medicine
雑誌名: Journal of Nuclear Medicine Technology
ISSN: 0091-4916
巻: 26
号: 4
開始ページ: 252
終了ページ: 256
キーワード: Myocardial infarction
Myocardial phantom
Single-photon emission computed tomography
抄録: Objective: We compared the count ratios of 201Tl and 99mTc on SPECT images and the true radioactivity in a myocardial phantom to study how precisely SPECT images reflect tracer uptake in myocardial infarction. Methods: A defect with 20%, 40% or 60% of normal myocardial radioactivity was placed in the anterior or inferior wall of a myocardial phantom to simulate myocardial infarction. Lung radioactivity was kept at 10% or 30% of normal myocardial radioactivity. The count ratio on short-axis SPECT images was calculated using the circumferential profile curve analysis. Results: The count ratios of 201Tl and 99mTc SPECT images with an anterior wall defect was lower than the true radioactivity in the phantom. The count ratio on SPECT images with the inferior wall defect was greater than the true radioactivity for the 20% and 40% defects and lower for the 60% defect. Conclusion: SPECT images overestimated decreased perfusion in the anterior wall. SPECT images underestimated decreased perfusion for 20% and 40% perfusion defects in the inferior wall.
URI: http://hdl.handle.net/2297/7450
資料種別: Journal Article
版表示: publisher
出現コレクション:1. 査読済論文(医学・保健)

このアイテムを引用あるいはリンクする場合は次の識別子を使用してください。 http://hdl.handle.net/2297/7450



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