The diagnostic and prognostic significance of coronary artery calcification. A report of 800 cases.

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Abstract
The significance of coronary artery calcification was assessed in 800 patients who underwent cardiac fluoroscopy and selective coronary cineangioraphy. Calcification was shown by fluoroscopy in 250, of whom 236 (94%) had .gtoreq. 75% stenosis of 1 or more major coronary arteries at angiography. Among patients with significant coronary artery disease, 40% (236/585) had calcification. Patients with calcification demonstrated poorer survival at all follow-up intervals (from 6 mo. to 5 yr). The 5-yr survival rate was 87% for patients without calcification, compared to 58% for those with calcification. The prognostic significance of coronary calcification appears to be independent of information obtained by cardiac catheterization and angiocardiography.