Prospective Study
Copyright ©The Author(s) 2015.
World J Gastroenterol. Feb 21, 2015; 21(7): 2178-2182
Published online Feb 21, 2015. doi: 10.3748/wjg.v21.i7.2178
Table 1 Comparison of the methods for measuring the largest diameter (n = 192)
MethodSize (cm)P
VCCEDGBF
VC0.85 ± 0.69---
CE1.10 ± 0.53< 0.001--
DGBF0.87 ± 0.540.134< 0.001-
ELMS0.85 ± 0.530.289< 0.0010.027
Table 2 Comparison of the ratio of actual to estimated measurement (n = 192)
RatioSize (cm)P
DGBF:VCELMS:VC
CE:VC1.30 ± 0.33< 0.001< 0.001
DGBF:VC1.11 ± 0.37-0.021
ELMS:VC1.04 ± 0.13--
Table 3 Influence of tumor size on measurement accuracy
Polyp sizeMethodRate of accurate estimationP
CEDGBF
< 1 cmCE20.6% (28/134)--
DGBF61.2% (82/134)< 0.001-
ELMS75.4% (101/134)< 0.0010.001
1-2 cmCE14.0% (6/43)
DGBF48.8 % (21/43)< 0.001
ELMS74.4% (32/43)< 0.0010.003
> 2 cmCE0.0% (0/15)
DGBF40.0% (6/15)0.008
ELMS80.0% (12/15)0.0460.212