Research Article
The Clinical Value of the Combined Detection of Enhanced CT, MRI, CEA, and CA199 in the Diagnosis of Rectal Cancer
Table 5
Comparison of single and combined enhanced CT, MRI, CEA, and CA199 in the diagnosis of RC (%).
| | Item | Sensitivity | Specificity | Accuracy | Positive prediction rate | Negative prediction rate |
| | Enhanced CT | 73.08 (114/156) | 78.85 (41/52) | 74.52 (155/208) | 91.20 (114/125) | 49.40 (41/83) | | MRI | 83.97 (131/156) | 86.54 (45/52) | 84.62 (176/208) | 94.93 (131/138) | 64.29 (45/70) | | CA199 | 51.92 (81/156) | 78.85 (41/52) | 58.65 (122/208) | 88.04 (81/92) | 35.34 (41/116) | | CEA | 57.69 (90/156) | 86.92 (40/52) | 62.50 (130/208) | 88.24 (90/102) | 37.74 (40/106) | | Combined diagnosis | 94.23 (147/156) | 98.08 (51/52) | 95.19 (198/208) | 99.32 (147/148) | 85.00 (51/60) |
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