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本文采用彩色脉冲多普勒超声心动图，对无心血管及代谢疾病的１０６名受试者进行了检测。年龄２５一８５岁。结果：随年龄增大出现：①Ｅ波下降，Ａ波增高，Ａ／Ｅ比值增大，且与年龄呈正相关；②ＤＣＶＥ减慢，ＤＥ延长。③Ｅｉ／Ａｉ比值变小。提示无心血管及代谢疾病的老年人出现与年龄相关的舒张期二尖瓣血流异常，可能是衰老心脏舒张功能下降的早期征象。
In this study, color Doppler echocardiography was used to detect 106 subjects without cardiovascular and metabolic diseases. Age 25 a 85 years old. Results: With age: ①E wave decreased, A wave increased, A / E ratio increased, and with age was positively correlated; ② DCVE slowed down, DE extended. ③Ei / Ai ratio becomes smaller. It suggests that age-related diastolic mitral blood flow abnormalities in elderly without cardiovascular and metabolic diseases may be an early sign of the decline of diastolic function in aged heart.