The Diagnostic Value Of Diffusion-weighted Imaging Combined With Contrast-enhancement In Uterus Cervical Carcinoma

Objective:by comparing the routine MR sequence, routine MR sequence add diffusion-weighted imaging (DWI) and MR contrast-enhanced scanning add DWI evaluation with pathologic respectively with the consistency rate of cervical cancer patients; to analyze the DWI features of cervical carcinoma and apparent diffusion coefficient (ADC) value, to investigate the values of staging and diagnostic of MR contrast-enhanced scanning add DWI in early stage cervical cancer, to improve the accuracy of MRI in the early cervical carcinoma. Methods: collected 55 cases that first time to our hospital gynecological surgery department for treatment cervical cancer from Jan 2006 to Dec 2010 (group of cervical carcinoma, aged 32～67 years, mean age 46.3 years; group of non-cervical cancer aged 37～66 years, mean age 49.1 years), All patients were confirmed by pathology. They performed routine MR sequence and axial DWI(b=1000s/mm2) and MR contrast-enhanced scanning before operation and non-clinical treatment before MRI examination.Results:1.to post-surgical pathologic as the gold standard, compared with three techniques in stage and diagnosis separately, MR contrast-enhanced scanning combined with DWI technology on the evaluation of early cervical carcinoma better consistent with pathology, the coincidence rate was 80.0%, Kappa value was 0.606, P=0.00, have statistical significance.2. the average ADC of nor-cervical cancer was (1.57±0.13)×10-3mm2/s, the average ADC of cervical cancer was (0.88±0.15)×10-3mm2/s, both ADC value had statistically significant. Conclusion:MR contrast-enhanced scanning add DWI were obvious superior to routine MR sequences and MR sequence add DWI in staging and in diagnosis for early cervical cancer, but it was limited in evaluation carcinoma in situ and cervical cancer I A period.