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A Comparison of Human and a Channelized Hotelling Observer In Discriminating between Alzheimer's Dementia and Controls Using Brain Perfusion SPECT
https://repo.qst.go.jp/records/68776
https://repo.qst.go.jp/records/687764ce8aa7c-ac2f-4445-8ce6-50e054ce57dc
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2006-11-17 | |||||
| タイトル | ||||||
| タイトル | A Comparison of Human and a Channelized Hotelling Observer In Discriminating between Alzheimer's Dementia and Controls Using Brain Perfusion 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_c94f | |||||
| 資源タイプ | conference object | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Shidahara, Miho
× Shidahara, Miho× Inoue, Kentaro× Maruyama, Masahiro× Taki, Yasuyuki× Goto, Ryoi× Okada, Ken× Arai, Hiroyuki× Kanno, Iwao× Fukuda, Hiroshi× et.al× 志田原 美保× 丸山 将浩× 菅野 巖× 福田 寛 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Abstract Introduction: The purpose of this study was to compare human and CH observers in an ROC study of the detection of the characteristic perfusion of mild Alzheimer's disease (AD), using SPECT images. These studies involved three types of images: SPECT images, three-dimensional stereotactic surface projection (3DSSP) images derived from the SPECT images, and Z-score of 3DSSP images. Methods: The materials were 52 I-123-IMP brain perfusion SPECT studies of healthy volunteers and AD patients. Five physicians judged the test dataset (SPECT, 3DSSP, and Z-score of 3DSSP images) as to whether the presented images were those of the AD patients, rated by five categories of certainty: definitely, possibly, equivocally, possibly not, and definitely not. The test statistics (?) of the test dataset by the CH observer were rated for ROC analysis. The areas under the curves (Az) according to the human and CH observers were compared for the three image types. Results: For the ! three image types, the best performance of Az by a human observer was achieved in the Z-score of 3DSSP images, and the Az of the SPECT images by the human observer were lower than those of the 3DSSP and Z-score of 3DSSP images. The Az determined by the CH observer resulted in the same trend as that of the human observer. Conclusions: The performance of the CH observer was similar to that of the human observers, dependin on the image type. This indicates that the CH observer method may be a useful technique for the evaluation of image processing in brain perfusion SPECT. |
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| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 世界核医学会総会 | |||||
| 発表年月日 | ||||||
| 日付 | 2006-10-27 | |||||
| 日付タイプ | Issued | |||||
