Abstract #3704

Evaluation of the grading efficacy of preoperative MRI for grades Ⅱ and Ⅲ intracranial solitary fibrous tumor

Yuncai Ran¹, Xiao Wang¹, Yong Zhang¹, Mengzhu Wang², and Jingliang Cheng¹

¹Magnetic Resonance Department, 1st Affiliated Hospital of Zhengzhou University, Zhengzhou, China, ²MR Research Collaboration, Siemens Healthineers, Beijing, China

Synopsis

Keywords: Tumors (Pre-Treatment), Tumor

Motivation: Retrospective study

Goal(s): This study analyzed the general clinical features and preoperative MRI features of patients with Grade Ⅱ and Ⅲ intracranial solitary fibrous tumor (ISFT).

Approach: Intergroup comparison was conducted according to postoperative pathological grade. Binary logistic regression was performed to identify effective imaging indexes that could predict pathological grade.

Results: There were differences between grades in tumor location; skull invasion; signal characteristics of T2-FLAIR and DWI images; and ADC_max, ADC_mean and ADC_min. ADC_min was the only effective imaging index that could predict pathological grade.

Impact: Retrospective analysis showed that preoperative ADCmin can effectively predict grade Ⅱ and Ⅲ tumors in patients with ISFT, which will provide an important reference basis for preoperative grading of ISFT.

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