对于原生大动脉回的非侵入性成像
Vidhu Anand1, Hector I Michelena1, Patricia A Pellikka1
1Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota.
大动脉反 (AR) 可能导致左心室 (LV) 扩大. 心声图有助于评估AR严重程度和LV重塑,指导治疗决策以改善患者的治疗结果.
科学领域:
- 心脏病学 心脏病学
- 医疗成像医学成像
- 心脏生理学 心脏生理学
背景情况:
- 大动脉反 (AR) 导致左心室 (LV) 体积和压力过载,导致异常重塑和扩大.
- 几年来,AR可能是无症状的,在肌动脉功能障碍和症状之前.
- 心声图对于诊断AR,评估其机制,严重程度和LV重塑至关重要.
研究的目的:
- 审查成像,特别是心声回声学在评估大动脉吐中的作用.
- 详细介绍回声心脏学参数及其整合,以评估AR机制,严重程度和LV重塑.
- 突出识别早期LV功能障碍和手术候选人的参数.
主要方法:
- 对AR中的心声回声和心磁共振成像现有文献的综述.
- 专注于整合多个心声回声测量以评估严重程度.
- 讨论特定的LV参数 (体积,喷射分数,全球纵向应变) 用于功能障碍检测.
主要成果:
- 心声谱对于AR诊断,机制,严重程度和LV重塑评估至关重要.
- 整合多个心声回声学参数对于准确的AR严重性评估是必要的.
- LV 末缩体积指数> 45 mL/m2,喷射分数<60%,以及异常的全球纵向应变可以识别早期功能障碍和手术候选者.
结论:
- 图像,特别是心声回声,对于评估大动脉吐患者至关重要.
- 特定的心声回声学参数可以识别早期的 LV 功能障碍,并指导手术干预.
- 心脏MRI作为一个有价值的辅助器,当心声回声图是不确定的.
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