Objective:

To explore the value of transvaginal high-frequency ultrasound (TVHU) in evaluating the stage

endometrial invasion thickness and lymph node metastasis of endometrial cancer before surgery.

Methods:

Reviewed and analyzed the ultrasound and magnetic resonance imaging (MRI) of 89 patients with endometrial cancer who underwent surgical treatment in Shanghai Prison General Hospital and Xinhua Hospital

Shanghai Jiaotong University School of Medicine from January 2014 to December 2019. and pathological examination data. Using pathological examination as the gold standard

observed the diagnostic compliance rate of TVHU and MRI in assessing tumor stage and peripheral lymphoma metastasis. Blood flow distribution

endometrial thickness and other data of different muscle layer infiltration depths were analyzed.

Results:

In patients with pathological stage Ⅰ

the maximum blood flow velocity (Vmax) and endometrial thickness in stage ⅠA lesions were higher than those in stage ⅠB and ⅠC

and theresistance index (RI) was lower than stage ⅠB and ⅠC; The maximum blood flow velocity and endometrial thickness in the lesion were higher than those in the ⅠC stage

and the RI was lower than that in the ⅠC stage. The differences between the groups were statistically significant (

P

＜0.05). In terms of tumor staging and tumor blood supply grading

a linear correlation analysis showed that there was a positive correlation between tumor clinical pathological stage and tumor blood supply grading (

r

=0.679

P

＜0.05). The diagnostic coincidence rate of TVHU in tumor staging was 82.02%

and the coincidence rate of MRI diagnosis was 93.26%

and the difference was statistically significant (

P

＜0.05). There was no statistically significant difference between ultrasound and MRI in preoperative assessment of the diagnosis rate of lymph node metastasis in different regions of endometrial cancer (

P

＜0.05).

Conclusion:

Preoperative application of TVHU can better assess the depth of invasion of endometrial cancer and the blood supply of tumors

and it ha

s a high diagnostic efficacy for early clinical staging. And because of its low price

it has a high application value in guiding the differential diagnosis of primary hospitals.