[Value of multidetector CT on aiding intraoperative judgement of serosal invasion of gastric cancer].
OBJECTIVE
To explore the value of multidetector CT on aiding intraoperative judgement of serosal invasion of gastric cancer.


METHODS
Clinical data of 206 cases of gastric cancer undergoing radical surgery in the First Hosptial of China Medical University from August 2009 to June 2011 were analyzed retrospectively. Preoperative CT findings and intraoperative judgement of serosal invasion in gastric cancer were compared with pathological results in order to investigate their values.


RESULTS
The sensitivity and specificity of preoperative CT findings and intraoperative judgement of serosal invasion were 88.5%, 81.5% and 98.9%, 61.3%, respectively. The accuracy of preoperative CT in diagnosing serosal invasion was higher than that of intraoperative judgement, while the difference was not statistically significant (84.5% vs. 77.2%, P=0.060). The rates of serosal invasion of normal type, reactive type, nodular type, tendonoid type and color-diffused type were 0 (0/29), 2.5% (1/40), 40.5% (15/37), 59.2% (29/49), and 82.4% (42/51) respectively. The accuracy of preoperative CT in diagnosing serosal invasion of gastric cancer with tendonoid type was higher than that of intraoperative judgement, and the difference was statistically significant (61.2% vs. 87.8%, P=0.002).


CONCLUSIONS
Multidetector CT plays an important role in aiding intraoperation judgement of serosal invasion of gastric cancer. For gastric cancer with tendonoid and color-diffused macroscopic serosal appearance, surgeons should pay attention to the value of preoperative CT findings.
Department of Radiology, The First Affiliated Hospital, China Medical University, Shenyang, China. xuedan1225@sina.com
Xue-dan
XD
Li
Ling-ling
LL
Cui
Li-he
LH
Cui
Yi
Y
Liu
Ke
K
Ren
Ke
K
Xu
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D007430:Intraoperative Care; D008297:Male; D008875:Middle Aged; D009361:Neoplasm Invasiveness / Q000000981:diagnostic imaging; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D012704:Serous Membrane / Q000000981:diagnostic imaging / Q000473:pathology*; D013274:Stomach Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D036542:Tomography, Spiral Computed / Q000379:methods*