Grading of Uterine Cervical Neoplasms：A Pilot Study with Small Field of View Intravoxel Incoherent Motion MRI Technology / 中国医学影像学杂志

ABSTRACT

PurposeTo probe into the feasibility of small field of view intravoxel incoherent motion (IVIM) MRI in the grading of cervical cancer before surgery.Materials and Methods Twenty-three patients with cervical cancer confirmed pathologically underwent preoperative conventional MRI and IVIM sequence scan [IVIM sequence included 10 b value (0-1500 s/mm2)]. Based on postoperative pathological cell morphology the patients were divided into well differentiated group (10 cases) and moderately or poorly differentiated group (13 cases). Then the parameters such as the ADC standard, D value, D* value and f value were calculated in each group according to double exponential function analysis. The data in the two groups were compared and nonparametric test to see whether they had normal distribution.Results Compared with the well differentiated group, the moderately or poorly differentiated group had statistically lower ADC standard value and D value (t=140.5 and 129.5,P0.05).Conclusion Small field of view IVIM MRI is feasible in predicting the differentiation of tumor in the preoperative grading of cervical cancer.