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Updated: Aug 14, 2026

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Evaluation of Left Ventricular Structure and Function using 3D Echocardiography
Published on: October 28, 2020
左心室のサイズと機能の評価は,エコーカルディオグラフィによる. 正常な子供たちの結果は正常です
Circulation
|September 1, 1977
まとめ
エコーカルディオグラフィは,左心室 (LV) のサイズが体重とともに増加することを明らかにします. %deltaLVDやPEP/LVET比率のような主要なLV機能指標は,子供時代を通して安定しています.
科学分野:
- ペディアトリック・カルディオロジー
- エコーカルディオグラフィー エコーカルディオグラフィー
- 心血管生理学 心血管の生理学
背景:
- 左心室 (LV) のサイズと機能を評価することは,小児心臓病学において極めて重要です.
- 健康な子供のLVパラメータに関する規範的なデータを確立することは,心臓異常を診断するために不可欠です.
研究 の 目的:
- 健康な子供のコホートで正常な左心室 (LV) のサイズと機能をエコーカルディオグラフィを用いて特徴付ける.
- 乳房機能の信頼性の高いエコーカルディオグラフィの指標を特定し,それが子供期を通して一定であるようにすることです.
主な方法:
- 145人の正常な子供に心声検査を実施し,LVの終端ダイアストリック直径 (EDD),シストルの変化率 (%deltaLVD),および周囲線維縮小の平均速度 (Vcf) を測定した.
- LV前射出期 (PEP) と射出時間 (LVET) は,大動脈弁の動きを使用して記録されました.
- 統計分析は,LVパラメータを体重,体表面積,年齢,心拍数と相関させた.
主要な成果:
- LVの終端ダイアストリック直径 (EDD) は,ログボディ体重 (r=0.95) とログボディ表面積 (r=0.96) との強い相関を示し,子供の頃に3倍に増加しました.
- LV機能の指標である%deltaLVDは,年齢と心拍数に関係なく,一貫して約36%でした.
- PEP/LVET比率は,年齢と心拍数から比較的独立しており,平均0.31.3でした.
結論:
- 左心室 (LV) の大きさは,成長とともに著しく増加し,子供の体重と表面積と強く相関しています.
- %deltaLVDとPEP/LVET比は,左心室 (LV) 機能の頑丈で信頼性の高いエコーカルディオグラフィック指標であり,異なる年齢で安定性を示しています.
- これらの安定した指標は,小児の心臓の健康を監視し,機能的異常を検出するための貴重なツールを提供します.
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