Golden-Angle Radial Sparse Parallel (GRASP) MRI differentiates head & neck paragangliomas from schwannomas.

ABSTRACT:

Purpose

The aim of this study was to demonstrate the value of DCE MRI with high spatiotemporal resolution (GRASP) for differentiating paragangliomas and schwannomas in the head and neck.

Methods

In a retrospective PACS search of in total 410 patients who had undergone head & neck GRASP-MRI, we identified 6 patients with biopsy proven cervical paragangliomas (n = 3) and schwannomas (n = 3). Conventional MRI features were evaluated, lesion size was determined. Postprocessing in 4D-GRASP datasets was performed (1) based on reconstructions with a temporal resolution (Tres) of 4.1 s, qualitative time-intensity curve classification and semiquantitative parameter (T_peak, PH, ER_max and Slope_max) analysis, and (2) voxel-based mapping and qualitative a

SUBMITTER: Demerath T 

PROVIDER: S-EPMC8191413 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature