甲状腺シンチグラム 甲状腺シンチグラム 感度:ナトリウムパーテクネートTc 99mとピンホールコリマーター付きガンマカメラによる感度
JAMA
|March 22, 1976
まとめ
甲状腺シンチグラフィーでは,ナトリウムパーテクネタートTc 99mを用いて,小さな結節,特に5mm未満の良性結節を検出するには信頼できない. しかし,速度と画像の品質により,最も優れた日常的なイメージング方法であり続けています.
科学分野:
- 核医学は,核医学である.
- エンドクリノロジー エンドクリノロジー
- 診断用イメージング
背景:
- 甲状腺の結節は一般的であり,正確な診断は極めて重要です.
- 甲状腺シンチグラフィーは標準的なイメージング技術です.
研究 の 目的:
- 結節性甲状腺疾患を特定するための甲状腺シンチグラフィの診断の正確性を評価する.
- スシンチグラフィの発見とヒストパト学的結果を相関させるため.
主な方法:
- 甲状腺切除術を受けた92人の患者のシンチグラムの遡及的レビュー.
- シンチグラフィック画像と,149個の結節の病理学的発見との相関.
- 5mmのピンホールコリメーターとナトリウムパーテクネートTc 99mを備えたガンマシンチレーションカメラの使用.
主要な成果:
- 甲状腺シンチグラフィーでは,直径2〜5mmの22の良性結節が特定できませんでした.
- また,このサイズ範囲内の悪性結節も明確に区切られていませんでした.
- この研究では,病理学的に149個のノドルを特定し,26個のノドルは2〜5mmの大きさでした.
結論:
- ナトリウムパーテクネタートTc 99mスシンチグラフィは,小型の甲状腺結節,特に良性のある結節を検出する上で制限があります.
- 制限があるにもかかわらず,99mTcピンホールカメラシンチグラフィは,優れた画像品質,低放射線量,および通常の甲状腺イメージングのための技術的なシンプルさを提供します.
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