通过心内膜心肌活检诊断心肌炎。

Med Clin North Am. 1986 Nov;70(6):1215-26. doi: 10.1016/s0025-7125(16)30893-8.

Endomyocardial biopsy is most frequently used to establish a definitive diagnosis of myocarditis, especially since this disorder has been treated with immunosuppressive therapy. Recent diagnostic criteria (the "Dallas Classification") are reviewed, and pitfalls and limitations are discussed.

心内膜心肌活检最常用于明确诊断心肌炎，尤其是自从这种疾病采用免疫抑制疗法治疗以来。本文回顾了最近的诊断标准（“达拉斯分类法”），并讨论了其中的缺陷和局限性。