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2023 Fiscal Year Final Research Report

Establishment of a Novel Cardiac Amyloidosis Clinic Utilizing Amyloid PET Imaging

Research Project

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Project/Area Number 21K15766
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 52040:Radiological sciences-related
Research InstitutionKagawa University

Principal Investigator

Norikane Takashi  香川大学, 医学部, 助教 (90623223)

Project Period (FY) 2021-04-01 – 2024-03-31
Keywordsアミロイド / PiB PET/CT
Outline of Final Research Achievements

The utility of PiB PET/CT in diagnosing cardiac amyloidosis and evaluating treatment efficacy was investigated. Initially, imaging protocols were examined, revealing that imaging 10 minutes post-PiB administration was optimal for diagnosing cardiac amyloidosis with PiB PET/CT. The findings also indicated that PiB PET/CT might differentiate between ATTR and AL types. Additionally, in ATTR-type cardiac amyloidosis, a reduction in PiB accumulation was observed following specific therapy, suggesting that PiB PET/CT could be beneficial in assessing treatment efficacy.

Free Research Field

放射線医学

Academic Significance and Societal Importance of the Research Achievements

心臓アミロイドーシスにPiBが集積する可能性は示唆されていたが、定まったプロトコールはなく、過去の報告でも様々であった。最適なプロトコールが示唆できたことは学術的意義が高い。また、心臓アミロイドーシスの病型診断は、心筋生研がゴールドスタンダードである。しかしながら、侵襲が極めて高い。画像検査により病型診断が可能になれば、患者さんへの負担が軽減する。さらにATTR型の心臓アミロイドーシスの特異的治療の治療効果判定は現在複数の臨床症状や血液検査を総合的に行うが、PiB PET/CTで半定量的に客観的評価できる可能性が示唆されたことは社会的に有意義である。

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Published: 2025-01-30  

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