Application of CO2 injection method in the magnetic resonance imaging preoperative staging diagnosis for stage Ⅰ carcinoma of endometrium
10.3760/cma.j.issn.1006-9801.2016.08.005
- VernacularTitle:CO2注入法在Ⅰ期子宫内膜癌术前磁共振成像分期诊断中的应用
- Author:
Shuming XU
;
Hongxing JIN
;
Xiaoli GUAN
- Publication Type:Journal Article
- Keywords:
Endometrial neoplasms;
Magnetic resonance imaging;
Neoplasm staging;
CO2 injection method
- From:
Cancer Research and Clinic
2016;28(8):523-527
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the accuracy rate of CO2 injection method and conventional magnetic resonance imaging (MRI) in the staging diagnosis for stage Ⅰ carcinoma of endometrium.Methods Preoperative staging diagnosis for stage Ⅰ carcinoma of endometrium was done,and the method of injecting CO2 gas into the uterine lumen by catheter was applied for pelvic MRI scan in 38 cases of stage Ⅰ carcinoma of endometrium.The pathological staging result was treated as the gold standard to compare the accuracy rate of CO2 injection method with conventional scan method (43 cases).Results For conventional MRI scan group,the accuracy rate of staging diagnosis in stage Ⅰ carcinoma of endometrium was 81.3 ％ (35/43),including stage Ⅰ A 75.0 ％(6/8),stage Ⅰ B 83.9 ％(26/31),stage Ⅰ c 75.0 ％(3/4).For CO2 injection group,the accuracy rate was 89.4 ％(34/38),including stage Ⅰ A 85.7 ％(6/7),stage Ⅰ B 88.9 ％(16/18),stage Ⅰ c 84.6 ％ (12/13).There was a statistical difference between the accuracy rates of two methods (x2=7.81,P ＜ 0.05).Conclusion Compared with conventional scan method,the CO2 injection method with better simplicity,safety and application value,could be more accurate to determine the location of endometrial cancer and the degree of myometrial infiltration.
