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Table 4 Diagnostic test evaluation indexes for judging myometrial invasion by RESOLVE DWI and SS-EPI DWI.

From: High resolution diffusion-weighted imaging with readout segmentation of long variable echo-trains for determining myometrial invasion in endometrial carcinoma

Parameters

Intramucosal lesion

< 50% superficial invasion

≥50% myometrial invasion

Resolve DWI

SS-EPI DWI

Resolve DWI

SS-EPI DWI

Resolve DWI

SS-EPI DWI

Sensitivity

(95% confidence interval)

4/6 (66.67%)

(0.289, 1.044)

4/6 (66.67%)

(0.289, 1.044)

14/18 (77.78%)

(0.586, 0.970)

6/18 (33.33%)

(0.116, 0.551)

4/6 (66.67%)

(0.289, 1.044)

1/6 (16.67%)

(−0.132, 0.465)

Specificity

22/24 (91.67%)

16/24 (66.67%)

8/12 (66.67%)

5/12 (41.67%)

22/24 (91.67%)

20/24 (83.33%)

Accuracy

26/30 (86.67%

20/30 (66.67%)

22/30 (73.33%)

11/30 (36.67%)

26/30 (86.67%)

21/30 (70%)

Positive predictive value

(95% confidence interval)

4/6 (66.67%)

(0.289, 1.044)

4/12 (33.33%)

(0.067, 0.600)

14/18 (77.78%)

(0.617, 0.938)

6/13 (46.15%)

(0.191, 0.733)

4/6 (66.67%)

(0.289, 1.044)

1/5 (20%)

(−0.151, 0.551)

Negative predictive value

22/24 (91.67%)

16/18 (88.89%)

8/12 (66.67%)

5/17 (29.41%)

22/24 (91.67%)

20/25 (80%)

Positive likelihood ratio

8.004

2.000

2.333

0.571

8

1

Negative likelihood ratio

0.364

0.500

0.333

1.600

0.364

1

  1. RESOLVE readout segmentation of long variable echo-trains, DWI diffusion-weighted imaging, SS-EPI single-shot echo-planar imaging