Table 3:

Accuracy of BSCTA in detecting cerebral aneurysms

TP (No.)TN (No.)FP (No.)FN (No.)Sensitivity (%) (No.)Specificity (%) (No.)PPV (%) (No.)NPV (%) (No.)Accuracy (%) (No.)
Per patient70450199 (70/71)100 (45/45)100 (70/70)98 (45/46)99 (115/116)
    95% CI92–10092–10095–10089–10095–100
Per aneurysm73451199 (73/74)98 (45/46)99 (73/74)98 (45/46)98 (118/120)
    95% CI93–10089–10093–10089–10094–100
  • Note:—TP indicates true-positive; TN, true-negative; FP, false-positive; FN, false-negative; PPV, positive predictive value; NPV, negative predictive value.