Table 2 Cutoff value, AUC, sensitivity, specificity, accuracy, PPV, and NPV for various SPECT–CT variables.

From: Diagnostic criteria for temporomandibular joint osteoarthritis using standardized uptake value in single-photon emission computed tomography–computed tomography

Variables

Cutoff

AUC

(95% CI)

Sensitivity

(95% CI)

Specificity

(95% CI)

Accuracy

(95% CI)

PPV

(95% CI)

NPV

(95% CI)

SUVmax

 > 5.15

0.797

(0.736–0.858)

59.375

(47.342–71.408)

100.000

(100.000–100.000)

75.472

(67.281–83.663)

100.000

(100.000–100.000)

61.765

(50.214–73.315)

SUVpeak

 > 3.635

0.781

(0.720–0.842)

56.250

(44.096–68.404)

100.000

(100.000–100.000)

73.585

(65.192–81.978)

100.000

(100.000–100.000)

60.000

(48.523–71.477)

SUVmax/SUVref

 > 2.157

0.737

(0.659–0.816)

59.375

(47.342–71.408)

88.095

(78.301–97.889)

70.755

(62.095–79.415)

88.372

(78.791–97.954)

58.730

(46.573–70.887)

SUVpeak/SUVref

 > 1.775

0.750

(0.680–0.819)

54.688

(42.491–66.884)

95.238

(88.797–101.679)

70.755

(62.095–79.415)

94.595

(87.308–101.881)

57.971

(46.324–69.618)

  1. AUC area under the receiver operating characteristic (ROC) curve, PPV positive predictive value, NPV negative predictive value, SUV standardized uptake value, SPECT–CT single-photon emission computed tomography–computed tomography, CI confidence interval.
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