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Table 5 Comparison of [18F]FDG PET/MRI with ceMRI and/or ceCT for patient-based T, N and M staging, detection of residual disease after neoadjuvant chemotherapy and detection of recurrence

From: Diagnostic value of [18F]FDG PET/MRI for staging in patients with ovarian cancer

 

[18F]FDG PET/MRI (95% CI)

ceMRI and ceCT (95% CI)

P

Primary tumor

 Sensitivity

97.4% (0.90–1.00) (37/38)

97.4% (0.89–1.00) (37/38)

 

 Specificity

86.2% (0.77–0.89) (25/29)

58.6% (0.48–0.61) (17/29)

 

 Accuracy

92.5% (0.84–0.95) (62/67)

80.6% (0.72–0.83) (54/67)

0.01

T staging

 Accuracy

96.4% (0.96–0.96) (54/56)

92.9% (0.93–0.93) (52/56)

0.48

T2a (growth into uterus, fallopian tubes, or ovaries)

 Sensitivity

100% (0.43–1.00) (2/2)

50% (0.11–0.50) (1/2)

 

 Specificity

100% (0.96–1.00) (30/30)

100% (0.97–1.00) (30/30)

 

 Accuracy

100% (0.93–1.00) (32/32)

96.9% (0.92–0.97) (31/32)

1.00

T2b (growth into other nearby pelvic organs such as bladder, sigmoid colon, or rectum)

 Sensitivity

0% (0.00–0.00) (0/1)

0% (0.00–0.00) (0/1)

 

 Specificity

100% (1.00–1.00) (31/31)

100% (1.00–1.00) (31/31)

 

 Accuracy

96.9% (0.97–0.97) (31/32)

96.9% (0.97–0.97) (31/32)

1.00

T3b (growth into organs outside the pelvis, but ≤ 2 cm across)

 Sensitivity

95.5% (0.86–0.96) (21/22)

90.9% (0.81–0.91) (20/22)

 

 Specificity

100% (0.94–1.00) (33/33)

100% (0.93–1.00) (33/33)

 

 Accuracy

98.2% (0.91–0.98) (54/55)

96.4% (0.88–0.96) (53/55)

1.00

T3c (growth into organs outside the pelvis, > 2 cm across)

 Sensitivity

100% (0.92–1.00) (21/21)

100% (0.92–1.00) (21/21)

 

 Specificity

100% (0.95–1.00) (34/34)

100% (0.95–1.00) (34/34)

 

 Accuracy

100% (0.94–1.00) (55/55)

100% (0.94–1.00) (55/55)

0.00

N staging

 Sensitivity

100% (0.74–1.00) (6/6)

33.3% (0.12–0.33) (2/6)

 

 Specificity

100% (0.93–1.00) (21/21)

100% (0.94–1.00) (21/21)

 

 Accuracy

100% (0.88–1.00) (27/27)

85.2% (0.76–0.85) (23/27)

0.13

M staging

 Sensitivity

100% (0.94–1.00) (12/12)

25.0% (0.19–0.25) (3/12)

 

 Specificity

100% (0.25–1.00) (1/1)

100% (0.22–1.00) (1/1)

 

 Accuracy

100% (0.88–1.00) (13/13)

30.8% (0.19–0.31) (4/13)

 < 0.01

Evaluation of residual disease for interval debulking surgery after neoadjuvant chemotherapy

 Sensitivity

71.4% (0.71–0.71) (5/7)

57.1% (0.57–0.57) (4/7)

 

 Specificity

0% (0.00–0.00) (0/0)

0% (0.00–0.00) (0/0)

 

 Accuracy

71.4% (0.71–0.71) (5/7)

57.1% (0.57–0.57) (4/7)

1.00

Evaluation of recurrence

 Sensitivity

100% (0.88–1.00) (9/9)

88.9% (0.76–0.89) (8/9)

 

 Specificity

100% (0.44–1.00) (2/2)

100% (0.40–1.00) (2/2)

 

 Accuracy

100% (0.80–1.00) (11/11)

90.9% (0.69–0.91) (10/11)

1.00