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  1. 学会発表・講演等
  2. ポスター発表

New brain phantoms suitable for brain scanners with hemisphere detector arrangement

https://repo.qst.go.jp/records/72507
https://repo.qst.go.jp/records/72507
81b389be-6485-4a54-98f7-8e4a09ac4a02
Item type 会議発表用資料 / Presentation(1)
公開日 2017-11-01
タイトル
タイトル New brain phantoms suitable for brain scanners with hemisphere detector arrangement
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 赤松, 剛

× 赤松, 剛

WEKO 714053

赤松, 剛

Search repository
田島, 英朗

× 田島, 英朗

WEKO 714054

田島, 英朗

Search repository
脇坂, 秀克

× 脇坂, 秀克

WEKO 714055

脇坂, 秀克

Search repository
前田, 貴雅

× 前田, 貴雅

WEKO 714056

前田, 貴雅

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岩男, 悠真

× 岩男, 悠真

WEKO 714057

岩男, 悠真

Search repository
吉田, 英治

× 吉田, 英治

WEKO 714058

吉田, 英治

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山下, 大地

× 山下, 大地

WEKO 714059

山下, 大地

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山谷, 泰賀

× 山谷, 泰賀

WEKO 714060

山谷, 泰賀

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赤松 剛

× 赤松 剛

WEKO 714061

en 赤松 剛

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田島 英朗

× 田島 英朗

WEKO 714062

en 田島 英朗

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脇坂 秀克

× 脇坂 秀克

WEKO 714063

en 脇坂 秀克

Search repository
前田 貴雅

× 前田 貴雅

WEKO 714064

en 前田 貴雅

Search repository
岩男 悠真

× 岩男 悠真

WEKO 714065

en 岩男 悠真

Search repository
吉田 英治

× 吉田 英治

WEKO 714066

en 吉田 英治

Search repository
山下 大地

× 山下 大地

WEKO 714067

en 山下 大地

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山谷 泰賀

× 山谷 泰賀

WEKO 714068

en 山谷 泰賀

Search repository
抄録
内容記述タイプ Abstract
内容記述 The brain PET imaging technique is very useful for clinical practice and molecular imaging research. Both high sensitivity and high resolution are required for accurate imaging. Therefore, we developed the brain-dedicated compact PET scanner which has a hemispherical helmet detector unit and an add-on detector unit located at the chin position (helmet-chin PET). We developed its prototype system using 4-layer depth-of-interaction detectors. To realize clinical applications of the PET, we need to evaluate the PET system regarding their absolute quantitation, image contrast, noise and uniformity using appropriate phantoms. However, existing standard phantoms are not applicable for the helmet-chin PET scanner because of its hemisphere geometry. Therefore, in this study, we developed two new phantoms, a small sphere contrast phantom and a 3-dimensional hemisphere brain phantom, which model a brain tumor and static regional cerebral blood flow, respectively. These phantoms have an adaptive structure for use with the helmet-chin PET scanner. We applied the developed contrast phantom to the helmet-chin PET prototype and a commercial whole-body PET/CT scanner to evaluate imaging performance of image contrast and noise. As a result, the helmet-chin PET prototype showed higher image contrast and lower image noise compared with the commercial whole-body PET/CT scanner. In conclusion, we were able to evaluate imaging performance of the helmet-chin PET prototype using the developed phantoms. These phantoms are considered to be useful for evaluating the imaging performance of brain-dedicated PET scanners, and for determining the appropriate scanning and reconstruction parameters.
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 2017 IEEE NSS/MIC
発表年月日
日付 2017-10-25
日付タイプ Issued
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