Article Figures & Data
Figures
- 1
A 34-year-old man with a history of resection of adenocarcinoma of left colon. WB-DWI showed anterior abdominal wall with focal nodular of hyperintensity during postoperative follow-up, which was confirmed as PM in the subsequent cytoreductive surgery. The preoperative PCI of WB-DWI was 5. The surgery PCI was 2. The PCI Types were matched.
- 2
A 36-year-old man with signet cell cancer of the rectum was diagnosed as multiple peritoneal metastases on preoperative WB-DWI, while preoperative positron emission tomography-CT (PET-CT) was negative. PM was confirmed in the followed cytoreductive surgery along with the resection for primary lesion. The PCI of preoperative WB-DWI and surgery were 13 and 18 respectively, with a same PCI Type.
- 3
Comparison of PCI on preoperative WB-DWI and surgical PCI score.
Tables
- 1
Peritoneal tumor detection on WB-DWI at 13 anatomic sites compared with surgical and histopathologic findings
Region True positive False negative True negative False positive Sensitivity (%) Specificity (%) Accuracy (%) 0 12 4 10 1 75.0 90.9 81.5 1 13 1 10 3 92.9 76.9 85.2 2 14 2 9 2 87.5 81.8 85.2 3 11 2 11 3 84.6 78.6 81.5 4 11 4 11 1 73.3 91.7 81.5 5 14 2 8 3 87.5 72.7 81.5 6 22 1 3 1 95.7 75.0 92.6 7 13 2 11 1 86.7 91.7 88.9 8 12 3 11 1 80.0 91.7 85.2 9 9 3 14 1 75.0 93.3 85.2 10 11 2 13 1 84.6 92.9 88.9 11 10 7 8 2 58.8 80.0 66.7 12 11 7 6 3 61.1 66.7 63.0 Total 163 40 125 23 80.3 84.5 82.1 Lesion size (cm) < 0.5 0.5–5.0 > 5.0 WB-DWI 75 73 15 Surgery 108 80 15 Sensitivity (%) 69.4 91.3 100 Surgery Small-volume tumor Moderate-volume tumor Large-volume tumor WB-DWI Small-volume tumor 10 0 0 Moderate-volume tumor 0 12 1 Large-volume tumor 0 2 2
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