2023 Fiscal Year Final Research Report
Development of Scratch-PET, a scanning PET system with a completely open space
| Project/Area Number |
20K20239
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 90130:Medical systems-related
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| Research Institution | National Institutes for Quantum Science and Technology |
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Principal Investigator |
Iwao Yuma 国立研究開発法人量子科学技術研究開発機構, 量子医科学研究所 先進核医学基盤研究部, 研究員 (40758330)
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| Project Period (FY) |
2020-04-01 – 2024-03-31
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| Keywords | PET / 体動補正 / モーショントラッキング |
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| Outline of Final Research Achievements |
We have developed the world's first concept of Scratch-PET for intraoperative support. The Scratch-PET consists of a detector placed on the patient's back and a hand-held detector that scans the patient's body.
After basic performance evaluation through simulation, a prototype was developed using a pair of detectors. The hand detector was tracked using an optical device and a reconstruction algorithm based on body motion compensation technology was developed. Imaging of a Delenzo phantom with a rod structure of multiple diameters inside was performed, and it was demonstrated that a structure of about 5 mm in diameter could be visualized.
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| Free Research Field |
画像処理
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| Academic Significance and Societal Importance of the Research Achievements |
Scratch-PETは，少数のディテクタで広い範囲の撮像が可能であり，また撮像時以外は装置の上面は完全にフリーとなるため，術技の妨げとなることもない．このような特徴は術中PETの実現に必要不可欠なものである．試作機による性能評価から，肉眼では同定困難な数㎜程度のガンを可視化できる性能が示唆されており，術中支援によるガンの外科手術の更なる精度向上が期待できる．
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