致命的な心筋損傷を有する患者のタリウム-201スシンチグラフィック欠陥の病理学的根拠
Circulation
|October 1, 1979
まとめ
発心筋梗塞後の大きなタリウム-201欠陥は,高い死亡率を示す可能性があります. しかし,これらの欠陥は,単に心筋縮ではなく,可逆性心不全をも反映し,生存予測に影響を与える可能性があります.
科学分野:
- 心臓病学 心臓病学
- 核医学は,核医学である.
- 病理学 パトロジー
背景:
- タリウム-201スシンチグラフィーは,心筋梗塞を評価するために使用されます.
- タリウムスキャンの大きな欠陥は,急性心筋梗塞後の高い死亡率と関連しています.
研究 の 目的:
- 高リスクのタリウムシンチグラムが,ミオカルジウムの重大な損失による生存率の低下を予測するかどうかを判断する.
- 心臓発作の大きさとタリウム欠陥の程度を相関させるため.
主な方法:
- タリウム-201のシンチグラムのための定量的な,コンピュータ支援の環状プロフィール技術.
- 心臓発作の大きさ (解剖した患者の場合) と3つの視点でのタリウム欠陥の程度との相関.
主要な成果:
- 大量のタリウム欠陥 (スコア≥7.0) を有する患者の62%は,左心室 (LV) の心筋の損失が>25%であった.
- 大きな欠陥を持つ患者の38%は,より小さな心臓発作 (4-24% LV) を有しており,ネクロシスなしの缺血を示唆しています.
- >25%の LV 損失を有する 8/9 の患者は大きな欠陥を有し,小さな欠陥を有する 10/11 の患者は <20%の LV 心臓発作を有しました.
結論:
- 大量のタリウム欠陥は,患者の60%以上において,重要な心筋損傷を予測することができる.
- シンチグラフィックの欠陥は,心臓発作と可逆性イシュケミアの組み合わせを表す可能性があります.
- タリウムスシンチグラフィーの発見は,心臓発作のサイズと不血症の負担に関して慎重に解釈する必要があります.
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