左心室の構造と機能の評価のためのスペックル・トラッキング・ストレイン・エコーカルディオグラフィー: アメリカ心臓協会の科学的な声明
Circulation
|August 6, 2025
まとめ
スペックル・トラッキング・エコー・カルディオグラフィーで評価された全線縦断 (GLS) は,エジェクション分数と比較して心臓疾患の診断および予後値に優れている. GLSはサブ臨床的機能障害を早期に検出し,高度に再現可能であり,患者の管理を向上させます.
科学分野:
- 心臓病科
- 医療用イメージング
- エコーカルディオグラフィー
背景:
- 左心室内静脈機能の評価は心臓病の管理に不可欠です.
- 従来のエジェクション分数の方法は,幾何学的な仮定とリーダーの可変性を含む制限があります.
- 心筋繊維の複雑さは 従来の評価に挑戦しています
研究 の 目的:
- スペックル・トラッキング・エコー・カルディオグラフィー (STE) ストレス・イメージングの原理とテクニックをレビューする.
- 様々な心血管疾患におけるSTEの応用に関する証拠に基づいたレビューを提示する.
- デバイス療法におけるSTEの有用性を調査し,将来の方向性を概説します.
主な方法:
- 2Dスペックル追跡エコーカルディオグラフィを使用して,縦,周,半径平面での心筋のストレスを測定します.
- 全長線ストレンス (GLS) の診断値と予後値をエジェクション分数と比較する.
- STEの応用と将来の潜在的な用途に関する既存の文献をレビューします.
主要な成果:
- グローバル・ロングスチーナル・ストレイン (GLS) は,エジェクション・フラクションよりも優れた診断および予後能力を示しています.
- GLSは高度に再現可能で,エジェクション分子が低下する前にサブクリニックの心臓機能障害を検出します.
- STEはバイオマーカーとして 漸進的な予後および治療的価値を提供します
結論:
- スペックル・トラッキング・エコーカルディオグラフィー,特にGLSは,左心室のシストリック機能を評価する上で重要な進歩を表しています.
- STEは従来の方法と比較して 心臓の健康や病気について 優れた洞察力を提供します
- GLSを臨床実践に組み込むことで 患者の治療結果と管理戦略の改善が期待できます
関連する概念動画
Assessment of the Cardiovascular System IV: Auscultation
2.8K
Cardiac auscultation is a clinical skill used to assess heart function and detect abnormalities. It involves listening to heart sounds at specific anatomical locations through a stethoscope.
Normal Heart Sounds
S1 (First Heart Sound)-
S1 is made by the closure of the mitral and tricuspid valves (atrioventricular valves), marking the beginning of systole.
S2 (Second Heart Sound)-
S2 is made by the closure of the aortic and pulmonic valves (semilunar valves), marking the end of the systole.
Normal Heart Sounds
S1 (First Heart Sound)-
S1 is made by the closure of the mitral and tricuspid valves (atrioventricular valves), marking the beginning of systole.
S2 (Second Heart Sound)-
S2 is made by the closure of the aortic and pulmonic valves (semilunar valves), marking the end of the systole.
2.8K
Imaging Studies for Cardiovascular System I:Echocardiography
1.0K
Cardiac imaging studies encompass a wide range of noninvasive and minimally invasive techniques designed to visualize the heart's structure and function in detail. One such technique is echocardiography, which uses high-frequency ultrasound waves to produce detailed images of the heart, known as echocardiograms.
Indications: Echocardiography is utilized to diagnose heart failure, valve disorders, and myocardial infarction. It also assesses cardiac structures' size, shape, and motion,...
Indications: Echocardiography is utilized to diagnose heart failure, valve disorders, and myocardial infarction. It also assesses cardiac structures' size, shape, and motion,...
1.0K
Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT
973
Calcium-Scoring CT ScanA calcium-scoring CT scan, also known as coronary artery calcium (CAC) scan, detects calcium deposits in the coronary arteries. This test assesses the risk of coronary artery disease (CAD), which can lead to cardiovascular events such as angina, heart failure, and sudden cardiac arrest.A calcium-scoring CT scan is generally recommended for individuals at intermediate risk of CAD without symptoms. It includes:Men aged 40-75 and women aged 50-75: Especially those with a...
973
Mitral Stenosis II: Clinical features and Diagnostic Tests
557
Mitral stenosis is a heart condition in which the mitral valve, which allows blood to flow from the left atrium to the left ventricle, becomes narrowed or stenotic. This narrowing hinders blood flow and leads to clinical symptoms requiring specific medical evaluations and management strategies. The following overview outlines the clinical symptoms, assessments, diagnostic findings, prevention methods, and treatments for mitral stenosis.Clinical ManifestationsDyspnea (shortness of breath): This...
557
Acute Coronary Syndrome III: Diagnostic Studies
495
Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...
495
Dysrhythmias V: Evaluating Dysrhythmias
428
Dysrhythmias, also known as arrhythmias, are disturbances in the heart's rhythm that range from benign to life-threatening. A thorough evaluation is crucial for appropriate management and involves a comprehensive medical history, physical examination, and various diagnostic tests.Medical HistorySymptoms: Collect detailed information on palpitations, dizziness, syncope, chest pain, and fatigue. Note their onset, frequency, and triggers.Previous Cardiac Issues: Document any history of heart...
428


