ROLE OF CORONARY CT ANGIOGRAM IN ... - Cardiology Online



ROLE OF CORONARY CT ANGIOGRAM IN EVALUATING CORONARY ARTERY DISEASE IN A COMMUNITY HOSPITAL – A RETROSPECTIVE ANALYSIS

A. Mohammed1,2, A. Ariyachaipanich1,2, A. Syed1,2, W. Ananthapanyasut1,2,

T. Harindhanavudhi1,2, M. Hamarshi1,2, B. Alhariri1,2, T. Takale1,2, T. Levin2

1University of Illinois at Chicago, 2Advocate Christ Medical Center, IL, USA

Objective: To evaluate the usefulness of coronary angiography by 64-detector multislice spiral computed tomography (MSCT) in community hospital.

Methods: We extracted data from the Advocate Christ Medical Center - CTA database (April 2006 and April 2007) for 1 year. 153 patients underwent CTA using a Phillips 64 slice scanner. Out of 153 patients 36 patients underwent subsequent invasive angiogram. Using the AHA model, the degree of stenosis was estimated in 15 coronary artery segments. Stenosis > 50% per segment was considered significant. The results of CTA were compared to conventional coronary angiography.

Results: Adequate coronary artery visualization was seen in 97. 9 % (532 / 543 segments). The sensitivity, specificity, and positive and negative predictive values of MDCT for the identification of >50% stenosis were 51%, 94%, 45% and 95% respectively.

Conclusions: The sensitivity and positive predictive value were significantly lower in our retrospective analysis in a community setting. However the specificity and negative predictive value were comparable to previous studies.

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