相关实验视频

Updated: May 7, 2026

Magnetic Resonance Derived Myocardial Strain Assessment Using Feature Tracking

Magnetic Resonance Derived Myocardial Strain Assessment Using Feature Tracking

Published on: February 12, 2011

使用心脏磁共振评估左捆分支阻塞患者的心肌张力模式的评估

Marina Raquel Santos^1,2, Mariana Santos Silva^3,4, Sara Lopes Guerreiro³

¹Hospital Dr. Nélio Mendonça, Funchal, Portugal. m.raquel.santo1992@gmail.com.

The international journal of cardiovascular imaging

|February 20, 2024

概括

心血管磁共振 (CMR) 可以分类左捆分支区块 (LBBB) 应变模式,与左心室 (LV) 改造和功能障碍相关联,独立于心肌痕.

科学领域:

心血管成像 - 心血管成像
心脏磁力共振成像 (MRI)
肌心筋应变分析

背景情况:

心声学在左束支部块 (LBBB) 中发现了四个隔膜纵向应变模式,表明左心室 (LV) 重建的频谱.
使用心血管磁共振 (CMR) 分类这些模式的临床意义和可行性尚未完全阐明.

研究的目的:

评估使用CMR对LBBB诱导的隔膜纵向应变模式进行分类的可行性.
评估这些CMR衍生的应变模式与LV重塑,LV功能障碍和心肌痕之间的关联.

主要方法:

一个单一中心注册了115名LBBB患者的隔膜闪光,这些患者被转介为CMR.
半自动特征追踪CMR (FT-CMR) 用于心肌菌株量化和模式分类.
分析包括评估LV体积,喷射分数和肌肉心脏痕晚期加多增强 (LGE) 的评估.

主要成果:

在115名患者中,使用FT-CMR成功分类了四种LBBB菌株模式.
较高的应变模式阶段与增加的隔膜闪,较大的LV体积,减少的LV喷射率和较低的绝对应变值 (p < 0.05) 相相关.
在菌株模式中没有观察到LGE的存在,分布或位置的显著差异.

结论:

FT-CMR可用于分类LBBB诱导的隔膜纵向应变模式.
这些模式与LBBB患者的LV重塑和功能障碍的程度密切相关.
应变模式和LV重塑之间的观察到的关联是独立于心肌痕的存在或分布.

关键词:

这是一个FT-CMRR.LBBB LBBB LBBB LBBB LBBB LBBB LBBB LBBB LBBB LBBB LBBB LBBB LBBB LBBB LBBB LBBB LBBB LBBB LBBB LBBB LBBB LBBB LBBB LBBB LBBB LBBB 在LV改造的过程中,七道管的闪光灯,可以看到.应变模式应变模式

更多相关视频

Quantification of Mouse Heart Left Ventricular Function, Myocardial Strain, and Hemodynamic Forces by Cardiovascular Magnetic Resonance Imaging

Quantification of Mouse Heart Left Ventricular Function, Myocardial Strain, and Hemodynamic Forces by Cardiovascular Magnetic Resonance Imaging

Published on: May 24, 2021

Estimating Bilateral Atrial Function by Cardiovascular Magnetic Resonance Feature Tracking in Patients with Paroxysmal Atrial Fibrillation

Estimating Bilateral Atrial Function by Cardiovascular Magnetic Resonance Feature Tracking in Patients with Paroxysmal Atrial Fibrillation

Published on: July 20, 2022

相关概念视频

Imaging Studies for Cardiovascular System IV: CMRI

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,...

Mitral Stenosis II: Clinical features and Diagnostic Tests

Mitral Stenosis II: Clinical features and Diagnostic Tests

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...