Photoshop combined with Endoscopic Ultrasonography in grading invasive risk of gastric stromal tumors
10.3969/j.issn.1007-1989.2016.08.005
- VernacularTitle:Photoshop 软件联合超声内镜在胃间质瘤不同侵袭危险性分级中的应用
- Author:
Yuhui ZHOU
;
Guangrong LU
;
Zhenzhai CAI
;
Qingqing WANG
;
Xuanping XIA
;
Jianwei JIN
;
Changlong XU
;
Zhanxiong XUE
- Keywords:
gastric gastrointestinal stromal tumors;
endoscopic ultrasound;
Photoshop;
mean gray value;
mean gray value standard deviation
- From:
China Journal of Endoscopy
2016;22(8):20-24
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the application value of Photoshop in grading invasive risk of gastric stromal tumors (GSTs). Methods EUS image of 97 cases of GSTs confirmed by pathological and immunohistochemical examination were collected. GSTs were divided into four groups (very low risk, low risk, intermediate risk, high risk) by tumor size, mitotic count and rupture of tumor. Mean gray value (intensity of echo) and gray value standard deviation (uniformity of echo) of EUS images of the lesions were determined by Photoshop and then the differences of each group were found by statistical analysis. Results It is difficult to differentiate EUS images of GSTs from each group by visual observation. The mean gray value of EUS image of very low risk group,low risk group, intermediate risk group and high risk group of GSTs respectively were (56.54 ± 6.10), (59.20 ± 7.51), (77.77 ± 10.90) and (83.43 ± 12.47). There was no significant difference between very low risk group and low risk group (P > 0.05). There was no significant difference between intermediate risk group and high risk group (P > 0.05). In addition, the others all had significantly different from that of each group (P < 0.05). The mean gray value standard deviation of EUS image of very low risk group, low risk group, intermediate risk group and high risk group of GSTs respectively were (8.46 ± 2.59), (12.57 ± 5.89), (12.84 ± 4.15) and (16.69 ± 4.69). There was no significant difference between low risk group and intermediate risk group (P > 0.05). In addition, the others all had significantly different from that of each group (P < 0.05). Conclusions The higher risk of GSTs, the higher of echo intensity and the worse of echo uniformity under EUS. Photoshop combined with EUS is helpful for differentiating different risk of GSTs by analyzing mean gray value and gray value standard deviation of the lesions.