Table 4

Assessment of contrast validity

Poor videoInconsistent videoOptimal videoFishers' exact test
White light inspection1 (4)6 (22)22 (81)47.1; P<0.00
External vessels0 (0)5 (19)21 (78)56.0; P<0.001
Internal iliac artery0 (0)2 (7)22 (82)75.3; P<0.001
Ureter0 (0)6 (22)20 (74)70.6; P<0.001
Paravesical space0 (0)4 (15)19 (70)58.9; P<0.001
Obliterated umbilical ligament0 (0)2 (7.4)19 (70)60.3; P<0.001
Dissection technique1 (4)2 (7.4)16 (59)36.9; P<0.001
Proof of sentinel node6 (22)2 (7.4)20 (74)33.6; P<0.001
Specimen extraction0 (0)9 (33)21 (78)84.2; P<0.001
SLN mapping1 (3.7)5 (19)10 (37)15.9; P=0.03
  • n (%) of reviewers who rated the performance as skilful.

  • SLN, sentinel lymph node.