複数の検査,累積放射線量,および心筋 perfusion 画像検査を受ける患者の臨床用例
Andrew J Einstein1, Shepard D Weiner, Adam Bernheim
1Department of Medicine, Cardiology Division, Columbia University Medical Center and New York-Presbyterian Hospital, New York, NY 10032, USA. andrew.einstein@columbia.edu
JAMA
|November 17, 2010
まとめ
心筋 perfusion imaging (MPI) は,高放射線負荷テストである. 多くの患者は,繰り返しMPIやその他の放射線処置を受け,その結果,特に心疾患のある患者には,かなりの累積放射線用量が発生します.
科学分野:
- 放射線学 放射線学
- 核医学は,核医学である.
- 心臓病学 心臓病学
背景:
- 心筋 perfusion imaging (MPI) は,米国の人口の放射線被曝に大きく貢献しています.
- 繰り返されたMPIおよびその他の処置による累積的な放射線負荷に関するデータは限られている.
研究 の 目的:
- MPIを受けた患者の処置数と累積放射線用量を定量化するために.
- MPIの臨床的徴候を分析し,検査を繰り返す.
主な方法:
- MPIを受けた1097人の患者の遡及的なコホート研究.
- 1988年から2008年までのすべての電離放射線処置の評価.
- 累積的な有効用量の分析と検査用事指針.
主要な成果:
- 患者は,放射線を伴う処置が平均15件,高用量処置が4件であった.
- 31.4%の患者が累積有効量100mSvを超えました.
- MPIの再発は一般的 (38.6%) で,特に男性と白人患者では,より高い累積用量に関連していました.
結論:
- 複数のMPI検査は頻繁であり,高量の累積放射線量に寄与する.
- 縦方向の放射線負荷を理解することは,患者の安全にとって極めて重要です.
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