Table 1.
Relationship between microvessel diameter (MVD) and mucosal surface–vessel distance
Average MVD (µm) | |||
---|---|---|---|
Upper (≤150)a | Middle (>150 to ≤300)a | Lower (>300 to ≤450)a | |
Normal mucosa (NM) | 7.4 ± 0.9 | 6.9 ± 1.5 | 8.8 ± 3.3 |
Hyperplasia (HP) | 7.6 ± 2.1 | 10.1 ± 3.0 | 8.7 ± 1.8 |
Tubular adenoma (TA) | 10.9 ± 3.4 | 8.3 ± 3.1 | 7.6 ± 1.3 |
Microvessel diameter was defined as the average diameter of all individual microvessels in each layer. MVD differed significantly between NM and TA (P = 0.002) and between HP and TA (P = 0.034) in the upper layer
aMicrovessels were divided into the following three groups according to mucosal surface–vessel distance: upper layer (≤150 μm), upper and middle layer (>0 to ≤300 μm), and all layers (>0 to ≤450 μm)