UNASSIGNED: The intraoperative examination of the sentinel nodes (SNs) is crucial for correctly performing SN navigation surgery (SNNS). Frozen-section diagnosis is ordinarily used; however, when several SNs are being assessed in @entity356 , which has numerous regional lymph nodes, it is difficult to examine them all correctly within the short duration of surgery. In the present study, we aimed to determine the SNs that should be preferentially examined during SNNS in @entity356 . A total of 824 SNs were examined in 113 @entity1 with clinically determined T1-2 @entity356 and no apparent lymph node @entity3 . We focused on the accumulation of tracers expressed by hot nodes (HNs) using the radioisotope (RI) method and green nodes (GNs) using the dye-guided method and measured the radioactivity count of the HNs (RI count). We compared these parameters between 35 metastatic and 789 non-metastatic SNs. The percentage of @entity3 -positive SNs that were radioactively 'hot' and dyed green was higher compared with that of the negative SNs (89 vs. 43%, respectively; P<0.01). The RI counts of the @entity3 -positive SNs were higher compared with those of the negative SNs [median (range): 361 (0-10,670) vs. 53 (0-9,931), respectively; P<0.01]. The area under the receiver operating characteristic curve of the RI count was 0.69 (95% CI: 0.60-0.78). Therefore, when assessing several SNs, those with higher RI counts (HNs and GNs) should be preferentially examined. Further accumulation of cases is required to establish the cut-off value for the diagnosis of @entity3 based on the RI count.

Preferentially examined sentinel nodes for sentinel node navigation surgery in XXXX .

@entity1 :: ('9606', 'Species') :: ['patients'] @entity356 :: ('MESH:D013274', 'Disease') :: ['gastric cancer'] @entity3 :: ('MESH:D009362', 'Disease') :: ['metastasis']
@entity356 :: (MESH:D013274,Disease) :: ['gastric cancer']
