Figures & data
dSRV: Diameter of the superior rectal vein; TME: Total mesorectal excision.
![Figure 1. Flow diagram of enrolled patients between December 2014 to July 2017.dSRV: Diameter of the superior rectal vein; TME: Total mesorectal excision.](/cms/asset/20191fb1-b613-493d-82b3-df2f638be780/icrc_a_12366555_f0001.jpg)
![Figure 3. Bland–Altman plot showed good correlation between the observers in measuring diameter of the superior rectal vein.](/cms/asset/a7df7f83-89eb-4334-9241-5525391bdbd6/icrc_a_12366555_f0003.jpg)
dSRV: Diameter of the superior rectal vein.
![Figure 4. The optimal cut-off value for diameter of the superior rectal vein was confirmed to be 3.6 mm by using X-tile software.dSRV: Diameter of the superior rectal vein.](/cms/asset/e4d49ead-c327-4946-bd2e-6d53c12ec52e/icrc_a_12366555_f0004.jpg)
Table 1. Comparison of patient characteristics according to diameter of the superior rectal vein.
The first row shows the survival curve prior to propensity score matching.
SRV: Superior rectal vein.
![Figure 5. Pre- and post-propensity score matched Kaplan–Meier analysis survival curves for overall survival, disease-free survival and metastasis-free survival.The first row shows the survival curve prior to propensity score matching.SRV: Superior rectal vein.](/cms/asset/3fc6c62a-1975-4da6-a318-15d86d6913f7/icrc_a_12366555_f0005.jpg)