文献詳細
今月の主題 消化管GIST―診断・治療の新展開
主題
文献概要
要旨 GISTの画像診断に要求されるのはより正確な病期の特定と治療効果の判定である.imatinibを中心とした治療が標準化した現在,CTやMRIを中心としたcross-sectional anatomyと18FDG PET(PET/CT)による核医学から得られる情報が最も重要となってくる.腫瘍の増殖にブドウ糖が必要で,増殖の盛んな腫瘍であればあるほど18FDGの取り込みが強く,その取り込みの程度や摂取率の経時的変化の定量化は,GISTの病態の把握や治療効果の判定に多大な貢献をしている.従来の形態画像診断の利点と限界を踏まえ,糖代謝という新たな側面から見た画像をうまく取り込んで臨床に役立てていく必要がある.
参考文献
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