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©2014 Baishideng Publishing Group Inc.
World J Gastroenterol. Nov 21, 2014; 20(43): 16306-16310
Published online Nov 21, 2014. doi: 10.3748/wjg.v20.i43.16306
Published online Nov 21, 2014. doi: 10.3748/wjg.v20.i43.16306
Table 1 Diagnostic characteristics of magnifying endoscopy with narrow-band imaging, magnifying endoscopy with acetic acid spray and narrow-band imaging, and magnifying endoscopy with crystal violet dye
M-NBI | MA-NBI | M-CV | |
Accuracy (95%CI) | 73% (63%-81%) | 73% (63%-81%) | 73% (63%-81%) |
Sensitivity (95%CI) | 85% (71%-93%) | 80% (67%-90%) | 83% (69%-91%) |
Specificity (95%CI) | 60% (45%-73%) | 64% (50%-77%) | 62% (48%-75%) |
PPV (95%CI) | 68% (55%-79%) | 70% (56%-81%) | 69% (56%-80%) |
NPV (95%CI) | 79% (36%-90%) | 76% (61%-87%) | 78% (62%-89%) |
Table 2 Diagnostic characteristics of magnifying endoscopy with narrow-band imaging
High-confidence predictions(n = 52) | Low-confidence predictions(n = 39) | P value for high-confidence vs low-confidence predictions | |
Accuracy (95%CI) | 79% (66%-88%) | 64% (48%-77%) | 0.16 |
Sensitivity (95%CI) | 87% (70%-95%) | 81% (56%-94%) | 0.68 |
Specificity (95%CI) | 68% (47%-84%) | 52% (33%-71%) | 0.37 |
PPV (95%CI) | 79% (62%-90%) | 54% (35%-72%) | 0.08 |
NPV (95%CI) | 79% (56%-92%) | 80% (54%-94%) | 1.00 |
Table 3 Diagnostic characteristics of magnifying endoscopy with acetic acid spray and narrow-band imaging
High-confidence predictions(n = 68) | Low-confidence predictions(n = 23) | P value for high-confidence vs low-confidence predictions | |
Accuracy (95%CI) | 79% (68%-87%) | 52% (36%-71%) | 0.02 |
Sensitivity (95%CI) | 83% (67%-92%) | 70% (39%-90%) | 0.69 |
Specificity (95%CI) | 76% (59%-87%) | 39% (18%-65%) | 0.04 |
PPV (95%CI) | 78% (63%-89%) | 47% (25%-70%) | 0.04 |
NPV (95%CI) | 81% (63%-91%) | 63% (30%-90%) | 0.35 |
Table 4 Diagnostic characteristics of magnifying endoscopy with crystal violet dye
High-confidence predictions(n = 69) | Low-confidence predictions(n = 22) | P value for high-confidence vs low-confidence predictions | |
Accuracy (95%CI) | 81% (70%-88%) | 46% (27%-65%) | 0.002 |
Sensitivity (95%CI) | 92% (78%-98%) | 38% (13%-70%) | 0.002 |
Specificity (95%CI) | 68% (50%-82%) | 50% (27%-73%) | 0.330 |
PPV (95%CI) | 78% (64%-88%) | 30% (10%-61%) | 0.006 |
NPV (95%CI) | 88% (68%-96%) | 58% (32%-81%) | 0.090 |
- Citation: Goto N, Kusaka T, Tomita Y, Tanaka H, Itokawa Y, Koshikawa Y, Yamaguchi D, Nakai Y, Fujii S, Kokuryu H. Magnifying narrow-band imaging with acetic acid to diagnose early colorectal cancer. World J Gastroenterol 2014; 20(43): 16306-16310
- URL: https://www.wjgnet.com/1007-9327/full/v20/i43/16306.htm
- DOI: https://dx.doi.org/10.3748/wjg.v20.i43.16306