Table 4. Diagnostic Performance of CCTA for Indicating Significant Systolic Compression.

	Sensitivity, % (95% CI)	Specificity, % (95% CI)	Positive Predictive Value, % (95% CI)	Negative Predictive Value, % (95% CI)	Diagnostic Accuracy, % (95% CI)
TAG of MB ≤ -18.8 HU/10 mm	54.1 (40.9–66.9)	90.4 (81.9–95.8)	80.5 (65.1–91.2)	72.8 (63.1–81.1)	75.0 (67.9–82.1)
MB length > 24.6 mm	50.8 (37.7–63.9)	81.9 (72.0–89.5)	67.4 (52.0–80.5)	69.4 (59.3–78.3)	68.8 (61.2–76.4)
MB depth > 1.5 mm	52.5 (39.3–65.4)	66.3 (55.1–75.3)	53.3 (40.0–66.3)	65.5 (54.3–75.5)	60.4 (52.4–68.4)

CCTA = coronary computed tomography angiography, CI = confidence interval, HU = Hounsfield units, MB = myocardial bridge, TAG = transluminal attenuation gradient