ヒトにおける心筋線維症のインビヴォ定量的超音波評価
E Picano1, G Pelosi, M Marzilli
1CNR Clinical Physiology Institute, University of Pisa, Italy.
Circulation
|January 1, 1990
まとめ
定量超音波は,人間の心臓組織における線維症を確実に測定します. この研究では,統合バックスケーター分析が結合組織含有量と相関し,心筋病の評価に役立つことが示されています.
科学分野:
- 心臓病学 心臓病学
- 医療用超音波検査について
- ヒストオパトロジー histopathology ヒストオパトロジー histopathology ヒストオパトロジー
背景:
- 心筋線維症の評価は,心筋疾患の診断と管理に不可欠です.
- 現在の方法は,侵襲的な生検や間接的な処置に依存していることが多い.
研究 の 目的:
- ヒト心筋における地域性超音波反射性が,ヒト心筋の局所性結合組織含有量と相関するかどうかを in vivo で判定する.
- 心筋線維症の定量化のためのリアルタイム統合バックスケーター分析の可行性を評価する.
主な方法:
- Mモードエコーカーディオグラフィーシステムと統合されたバックスキャッター分析 (2.25MHzトランスデューサー) を利用しました.
- 静脈間隔膜からの定量化された統合バックスケーター指数 (IBI) は,心周界面に正常化されています.
- 結合組織分析のためにマッソンのトリクロームで染色された内心筋バイオプシの定量ヒストロジーを実施しました.
主要な成果:
- パーセンテージ・インテグレーテッド・バックスケーター指数は,結合組織面積>20%の患者 (51±25%) と<20% (26±11%),p<0.05.5) と比較して,有意に高かった.
- 重要な正の相関関係 (R=0.55,p<0.05) が,百分位統合逆分散指数と百分位結合組織面積の間で観察されました.
- 地域性線維症の評価のためのオンライン,インビボ超音波分析の実現可能性が実証されました.
結論:
- リアルタイム・インテグレーテッド・バックスケーター・アナリストは,ヒト心筋の領域性線維症を評価するための実行可能で信頼性の高い非侵襲的方法である.
- 超音波反射性は,心筋結合組織の範囲と直接相関しています.
- このテクニックは,心臓筋病の診断とモニタリングの改善を約束しています.
関連する概念動画
Assessing Blood pressure using a doppler ultrasound
To obtain accurate blood pressure measurements in clinical settings, especially when traditional methods are insufficient, healthcare professionals utilize the Doppler ultrasound technique. This method uses high-frequency sound waves to detect blood flow within the arteries, which is crucial for patients with conditions that complicate circulatory system assessment.
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
Ultrasonography
Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
During an ultrasonography procedure, a handheld device called a...
During an ultrasonography procedure, a handheld device called a...
Imaging Studies for Cardiovascular System I:Echocardiography
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, evaluates...
Indications: Echocardiography is utilized to diagnose heart failure, valve disorders, and myocardial infarction. It also assesses cardiac structures' size, shape, and motion, evaluates...
Imaging Studies for Cardiovascular System IV: CMRI
Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...
Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT
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...
Imaging Studies II: Ultrasonography
IntroductionUltrasonography, or renal ultrasound, is a noninvasive medical imaging technique that uses high-frequency sound waves to visualize the kidneys, ureters, bladder, and surrounding tissues.Indications for Urinary System UltrasonographyUrinary system ultrasonography is indicated in various clinical scenarios, such as:Kidney Stones (Urolithiasis): To detect and monitor the size and presence of kidney or urinary tract stones.Hydronephrosis: To assess the dilation of the renal pelvis and...


