[Retracted] Study on Ultrasonographic Diagnosis and Postoperative Comprehensive Nursing of Rectal Cancer in Preoperative Staging

Table 5

Perirectal diameter and pT staging of 42 rectal cancer patients.

Perimeter diameter	pT		A combined
	pT1∼T2	pT3∼T4
<1/2 mm	16	8	24
≥1/2∼<1 mm	5	8	13
= 1	0	5	5
A combined	21	21	42