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New functional polar maps for estimating regional cardiac function using ECG-gated technetium-99m-tetrofosmin SPECT
http://hdl.handle.net/2297/6999
http://hdl.handle.net/2297/6999bf289b29-ec02-4f58-8983-a854253d95ef
名前 / ファイル | ライセンス | アクション |
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ME-PR-ONOGUCHI-M-29.pdf (393.4 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2017-10-03 | |||||
タイトル | ||||||
タイトル | New functional polar maps for estimating regional cardiac function using ECG-gated technetium-99m-tetrofosmin SPECT | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Onoguchi, Masahisa
× Onoguchi, Masahisa× Maruno, Hirotaka× Takayama, Teruhiko× Naoi, Yutaka× Irimoto, Masahiro× Maehara, Nobuyuki× Katayama, Hitoshi× Murata, Hajime |
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提供者所属 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 金沢大学大学院医学系研究科量子医療技術学 | |||||
書誌情報 |
Journal of Nuclear Medicine Technology 巻 28, 号 1, p. 29-35, 発行日 2000-03-01 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0091-4916 | |||||
出版者 | ||||||
出版者 | Society of Nuclear Medicine | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Objective: The purpose of this work was to develop functional parameters to analyze regional cardiac function using ECG-gated 99mTc-tetrofosmin SPECT. Our goal was to develop a methodology that used slice thickness correction, the generation of a time-activity curve and a polar map. Methods: Fourteen normal patients without evidence of coronary artery disease were studied. One hour after intravenous injection of 740-1110 MBq (20-30 mCi) 99mTc-tetrofosmin, ECG-gated SPECT data were acquired by dividing a cardiac cycle into 12 frames. The SPECT data were reconstructed from 11 of 12 frames into 3 views. The reconstruction of these images was repeated after performing slice thickness correction. Excluding the effect of different apex-to-base lengths at any frame during a cardiac cycle, 10 short-axis images with the same slice thickness were obtained. Each short-axis image was divided by 40 radii into 40 segments. The time-activity curve was generated from the total counts included in each segment plus both neighboring segments. Subsequently the curve fitting was performed using the second Fourier function. Results: From fitted curves and their differentials, we calculated end-systolic count, end-diastolic count, percent count increase, uptake, peak contraction rate, peak distention rate and contraction time. Conclusion: The functional polar maps visually demonstrated regional myocardial function. This method is expected to be helpful for assessing regional cardiac function using 99mTc-tetrofosmin. | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
関連URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | http://tech.snmjournals.org/cgi/content/short/28/1/29 |