Skip to main content

Table 2 Diagnostic performance of MRI for differentiating OEC from HGSC

From: MRI for differentiating ovarian endometrioid adenocarcinoma from high-grade serous adenocarcinoma

MRI features Sensitivity Specificity Accuracy PPV(%) NPV(%)
Mass size (≥7.8 cm) 80.0(20/25) 51.8(72/139) 56.1(92/164) 23.0(20/87) 93.5(72/77)
Unilateral 91.3(21/23) 49.5(46/93) 57.8(67/116) 30.9(21/68) 95.8(46/48)
Round/Oval shape 64.0(16/25) 82.7(115/139) 79.9(131/164) 40.0(16/40) 92.7(115/124)
Mainly cystic mass 72.0(18/25) 81.3(113/139) 79.9(131/164) 40.9(18/44) 94.2(113/120)
Homogeneous iso-/hyperintensity* 82.6(19/23) 95.7(66/69) 92.4(85/92) 86.4(19/22) 94.3(66/70)
Moderate enhancement 52.0(13/25) 73.4(102/139) 70.1(115/164) 26.0(13/50) 89.5(102/114)
Ascites(none or mild) 91.3(21/23) 43.0(40/93) 52.6(61/116) 28.4(21/74) 95.2(40/42)
SPC 43.5(10/23) 95.7(89/93) 85.3(99/116) 71.4(10/14) 87.3(89/102)
ADC value^ 55.0(11/20) 94.0(109/116) 88.2(120/136) 61.1(11/18) 92.4(109/118)
  1. PPV: positive predictive value; NPV: negative predictive value; *the signal intensity of cystic component on T1WI; ^ ADC value of solid component (≥0.971 × 10−3 mm2/s), ADC values of solid components are measured and averaged in 20 OECs and 116 HGSCs.