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. Author manuscript; available in PMC: 2013 May 23.
Published in final edited form as: Circ Cardiovasc Imaging. 2010 May 19;3(4):375–383. doi: 10.1161/CIRCIMAGING.109.892638

Table 3.

Diagnostic Accuracy of CTA for the Detection of ACS using Coronary Assessment only and Coronary with Regional LV Function.

CTA Evaluation Sensitivity Specificity PPV NPV
Coronary assessment only 24/31
77% (59–90)		 283/325
87% (83–91)		 24/66
36% (25–49)		 283/290
98% (95–99)
Coronary + Regional LV Function 27/31
87% (70–96)		 266/325
82% (77–86)		 27/86
31% (22–42)		 266/270
99% (96–100)

An abnormal CTA is defined as the presence of significant >50% stenosis or non-diagnostic CT scan for coronary assessment and/or presence of regional LV dysfunction, 95% confidence intervals are provided in parenthesis.

PPV: positive predictive value; NPV: negative predictive value.