Clinical guideline for non-invasive imaging techniques in diagnosing adult cardiomyopathies (2024 edition)

Cardiomyopathies encompass a spectrum of disorders characterized by alterations in cardiac structure, function, histology, and the conduction system due to myocardial cell injury, with significant variability in clinical presentation and prognosis. Despite overlapping morphological features among different types of cardiomyopathies, phenotypic similarities limit the precision of diagnosis and consequently affect the development of therapeutic strategies and prognosis assessment. Diagnosis begins with the screening of myocardial morphology and function abnormalities, primarily relying on multimodal non-invasive imaging techniques such as echocardiography, CT scans, and cardiac magnetic resonance imaging. These techniques comprehensively summarize the structural, functional, and tissue characteristics of various cardiomyopathies, highlighting differences among them. In view of the unique needs and current situation in this field in China, an expert group has jointly developed the"Clinical guideline for non-invasive imaging techniques in diagnosing adult cardiomyopathies (2024 edition)."These guidelines integrate the latest evidence, and systematically introduce the diagnosis and monitoring of cardiomyopathy, the application of non-invasive imaging techniques, and the analysis of features of cardiomyopathies, thereby to enhance the precise diagnosis of cardiomyopathy and aid in offering information for therapeutic decision-making, aiming to provide reasonable recommendations for clinicians in China.

心肌病是一类由于心肌病变导致心脏结构、功能、组织学及传导系统发生复杂变化的异质性疾病，其临床表现和预后差异显著。部分心肌病虽形态学特征相似，但其拟表型特性增加了临床精准诊断的难度，进而影响到治疗策略和预后评估的准确制定。心肌病的临床诊断通常始于对心肌形态及功能异常的筛查，这一过程主要依赖于多模态无创影像学技术，如超声心动图、CT断层扫描和核磁共振成像等。每种心肌病都展示出各自独特的结构、功能及组织特征的影像学表现。鉴于我国在这一领域的独特需求和现状，专家组联合制订《成人心肌病无创影像技术临床诊断指南（2024版）》。指南整合国内外最新的循证医学证据，并结合我国临床实践需求，旨在系统介绍心肌病的诊断与监测、无创影像学技术在心肌病诊断中的应用以及不同类型心肌病的影像学特征分析。通过这一指南，期望为各级临床医师提供科学的指导建议，以提升心肌病的诊疗水平，改善患者的生活质量及预后。.