Peliminary exploration on the differential diagnosis between meningioma and schwannoma using contrast-enhanced T 1 WI flow-sensitive black-blood sequence

• Published in: Frontiers in oncology 2022, Vol.12, p.1006190
• Main Authors: Cao, Xin, Lv, Kun, Xu, Siting, Feng, Zhe, Yin, Xuyang, Pan, Lei, Geng, Daoying, Zhang, Jun
• Format: Article
• Language: English
• ISSN: 2234-943X; 2234-943X

Contrast-enhanced T WI flow-sensitive black-blood (CE-T1WI FSBB) is a newly developed sequence which had not been widely used for differential diagnosis of brain tumors. To quantify the pre-operative imaging features of intratumoral microbleeds and intratumoral vessels using CE-T WI FSBB scan and study the differences in biological behavior of meningiomas and schwannomas underlying the imaging features. Seventy-three cases of meningiomas and 24 cases of schwannomas confirmed by postoperative pathology were included. Two neuroradiologists independently counted intratumoral vessels and intratumoral microbleeds based on CE-T WI FSBB images. The vessel density index (VDI) and microbleed density index (MDI) were the number of intratumoral vessels and the number of intratumoral microbleeds divided by the tumor volume, respectively. The consistency test of intratumoral vessel count and intratumoral microbleed count based on CE-T WI FSBB were summarized using 2-way random intraclass correlation coefficients (ICC). Mann-Whitney U-test and chi-square test were used to determine significant differences between meningiomas and schwannomas, and fibrous meningiomas and epithelial meningiomas.