Table 2

Results of the Per-Patient Analysis

AllSingle-Source CTDual-Source CTp Values
No HRCHRCp ValueNo HRCHRCp ValueSingle- vs. Dual-Source CT Without HRCSingle- vs. Dual-Source CT With HRCSingle-Source With vs. Dual-Source CT Without HRC
n20045555347
Evaluable182/20031/4551/550.00552/5345/47NS<0.001NSNS
(91%)(69%)(93%)(98%)(96%)
(86%–94%)(54%–81%)(83%–97%)(90%–100%)(86%–99%)
Sensitivity73/8115/1919/22NS20/2119/19NSNSNSNS
(90%)(79%)(86%)(95%)(100%)
(81%–95%)(57%–92%)(67%–95%)(77%–99%)(83%–100%)
Specificity86/10111/1524/29NS29/3122/26NSNSNSNS
(85%)(73%)(83%)(94%)(85%)
(77%–91%)(48%–89%)(66%–92%)(79%–98%)(67%–94%)
Positive predictive73/8815/1919/24NS20/2219/23NSNSNSNS
 value(83%)(83%)(79%)(91%)(83%)
(74%–89%)(61%–94%)(60%–91%)(72%–98%)(63%–93%)
Negative predictive86/9411/1524/27NS29/3022/22NSNSNSNS
 value(92%)(73%)(89%)(97%)(100%)
(84%–96%)(48%–89%)(72%–96%)(93%–99%)(85%–100%)
Correctly159/20026/4543/550.0449/5341/47NS<0.001NSNS
 classified(80%)(57%)(78%)(93%)(87%)
(73%–85%)(43%–71%)(66%–87%)(82%–97%)(75%–94%)

CT = computed tomography; HRC = heart rate control.

  • In evaluable patients.

  • Correctly classified: the proportion of patients who were classified as “evaluable” and correctly determined as to the absence or presence of at least 1 stenosis. For each value, the actual numbers, percentage, and 95% confidence interval are provided.