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(四)冠状动脉狭窄的研究是冠心病领域研究的一个基本课题冠状动脉狭窄是冠心病的一种基本病理表现,冠心病的各种临床表现均以冠脉狭窄为基础。冠脉狭窄程度不仅反映了冠脉病变的程度和进展,并且与临床的临床表现、诊断、治疗及预后有关。 1、冠心病的早期诊断对冠心病的诊断,以前主要靠临床表现和心电图等进行。自70年代起,运用选择性冠状动脉造影的方法,可以对冠心病进行确诊;但是,冠脉造影对轻度狭窄、冠脉内皮损伤或痉挛者并不能准确预报,对冠心病的早期诊断受到一定限制。尽管人们运用各种药物、运动等诱发实验,以及运用B超、CT及核磁共振等先进仪器对冠心病进行早期诊断,却仍然难以如愿。其原因何在?实验揭示,冠心病是一种正
(D) of coronary artery stenosis coronary heart disease research is a basic subject of coronary artery stenosis is a basic pathological manifestation of coronary heart disease, coronary heart disease in all clinical manifestations are based on coronary stenosis. The degree of coronary stenosis not only reflects the degree and progress of coronary lesions, but also with the clinical manifestations, diagnosis, treatment and prognosis. 1, early diagnosis of coronary heart disease diagnosis of coronary heart disease, previously mainly rely on clinical manifestations and ECG and so on. Coronary angiography can be diagnosed by selective coronary angiography since the 1970s; however, coronary angiography can not accurately predict mild stenosis, coronary endothelial injury or spasticity and early diagnosis of coronary heart disease Certain restrictions. Although people use various drugs, exercise induced experiments, and the use of advanced B ultrasound, CT and MRI advanced coronary heart disease diagnosis, but still difficult to do so. The reason why? Experiments revealed that coronary heart disease is a positive