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Methods: Oxygen extraction fraction (OEF) and other hemodynamic parameters were measured in 115 patients (64±9y) with unilateral cerebrovascular stenoocclusive disease (\u003e70% stenosis) using 15O-gas and water PET. A significant elevation of OEF greater than mean+2SD of healthy controls was defined as misery perfusion. CBF, CVR determined by %change in CBF after ACZ administration, OEF, and other hemodynamic parameters in territories of bilateral middle cerebral arteries were analyzed. Diagnostic accuracy in detection of misery perfusion using the criteria determined by baseline CBF and CVR was evaluated in all patients and only in patients with occlusive lesions. Results: Ten of 24 patients with misery perfusion showed a significant CVR decrease. Using criteria determined by significant decreases in CVR and baseline CBF, misery perfusion was detected with sensitivity of 42% and specificity of 95% in all patients. Patients with occlusive lesions (n=50) showed higher sensitivity with slightly lower specificity. Threshold determined by baseline CBF alone provided similar diagnostic accuracy in all patients as well as patients with occlusive lesions, which was more accurate than the detection by asymmetry index of OEF (OEF-AI). Conclusion: Reductions of CVR and baseline CBF in the ACZ challenge for CVD would detect misery perfusion with high specificity. 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Can the detection of misery perfusion in chronic cerebrovascular disease be based on reductions in baseline CBF and vasoreactivity?
http://hdl.handle.net/10098/1197
http://hdl.handle.net/10098/1197d0a628c4-da46-4b79-87c7-9f3019669ca7
名前 / ファイル | ライセンス | アクション |
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Okazawa_Can.pdf (765.7 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2007-11-30 | |||||
タイトル | ||||||
タイトル | Can the detection of misery perfusion in chronic cerebrovascular disease be based on reductions in baseline CBF and vasoreactivity? | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Misery perfusion | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Cerebral vasoreactivity | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Acetazolamide | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Cerebral blood flow | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Chronic cerebrovascular disease | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_1843 | |||||
資源タイプ | other | |||||
著者 |
Okazawa, Hidehiko
× Okazawa, Hidehiko× Tsuchida, Tatsuro× Kobayashi, Masato× Arai, Yoshikazu× Pagani, Marco× Yonekura, Yoshiharu |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Purpose: To investigate diagnostic accuracy for misery perfusion using criteria defined by baseline cerebral blood flow (CBF) and cerebral vasoreactivity (CVR) in the acetazolamide (ACZ) challenge, patients with chronic cerebrovascular disease (CVD) were studied. Methods: Oxygen extraction fraction (OEF) and other hemodynamic parameters were measured in 115 patients (64±9y) with unilateral cerebrovascular stenoocclusive disease (>70% stenosis) using 15O-gas and water PET. A significant elevation of OEF greater than mean+2SD of healthy controls was defined as misery perfusion. CBF, CVR determined by %change in CBF after ACZ administration, OEF, and other hemodynamic parameters in territories of bilateral middle cerebral arteries were analyzed. Diagnostic accuracy in detection of misery perfusion using the criteria determined by baseline CBF and CVR was evaluated in all patients and only in patients with occlusive lesions. Results: Ten of 24 patients with misery perfusion showed a significant CVR decrease. Using criteria determined by significant decreases in CVR and baseline CBF, misery perfusion was detected with sensitivity of 42% and specificity of 95% in all patients. Patients with occlusive lesions (n=50) showed higher sensitivity with slightly lower specificity. Threshold determined by baseline CBF alone provided similar diagnostic accuracy in all patients as well as patients with occlusive lesions, which was more accurate than the detection by asymmetry index of OEF (OEF-AI). Conclusion: Reductions of CVR and baseline CBF in the ACZ challenge for CVD would detect misery perfusion with high specificity. Decrease in baseline rCBF is more accurately detect misery perfusion than reduced CVR alone. | |||||
書誌情報 |
European journal of nuclear medicine and molecular imaging 巻 34, 号 1, p. 121-129, 発行日 2007-01 |
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出版者 | ||||||
出版者 | Springer Berlin / Heidelberg | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 16197070 | |||||
書誌レコードID | ||||||
識別子タイプ | NCID | |||||
関連識別子 | TD00006275 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1007/s00259-006-0192-5 | |||||
著者版フラグ | ||||||
出版タイプ | AO | |||||
出版タイプResource | http://purl.org/coar/version/c_b1a7d7d4d402bcce |