Role of endoscopic ultrasonography in the loco-regional staging of patients with rectal cancer

Table 5 Accuracy of endoscopic ultrasound for each single T stage

Ref.	Year	No.	pT1	pT2	pT3	pT4
Akasu et al[31]	1997	164	86%	56%	93%	75%
Marone et al[30]	2000	63	80%	78%	84%	80%
Lin et al[38]	2011	192	86%	94%	86%	65%
Fernández-Esparrach et al[39]	2011	90	95%	76%	76%	95%
Zhu et al[41]	2013	110	93%	88%	88%	96%
Range		619	80%-95%	56%-94%	76%-93%	65%-96%
Mean			88%	78.4%	85.4%	80.2%

uTN stage compared with pTN stage; No previous neoadjuvant therapy (NAT).