Table 3.

Participant responses on items regarding T staging.

T-staging item	Radiologists (N = 56) n (%)	Referring physicians (N = 50) n (%)	P -value*
Primary tumor measurement
One axis	10 (18)	9 (18)
Two axes	24 (43)	22 (44)	1.000
Three axes	22 (39)	19 (38)
Contact with adjacent viscera
There is/isn’t a cleavage plane between the tumor and the anatomical structure	19 (34)	33 (66)
There is/isn’t a clear fatty plane between the tumor and the anatomical structure	7 (12)	1 (2)	0.038
There is close contact between the lesion and the structure, without unequivocal signs of anatomical invasion	30 (54)	16 (32)
Contact with vascular structures			< 0.001
Gives only a brief description: “Tumor extension to vessel _______ ”	35 (64)	47 (94)	0.377
Details circumferential involvement of the artery (e.g., “< 180°”)	50 (91)	42 (85)	0.081
Details the presence or absence of stenosis and alteration in vessel diameter	54 (96)	44 (88)	0.002
Details the presence or absence of vascular wall irregularities	43 (78)	24 (47)	0.768
Details the presence/absence of fow in the vessel	49 (89)	44 (88)

* Fisher’s exact test.