Dynamic Perfusion MRI Characteristics of Dural Metastases and Meningiomas: A Pilot Study Characterizing the First-Pass Wash-In Phase Beyond Relative Cerebral Blood Volume

Abstract

First-pass wash-in characteristics of dural lesions may be useful for evaluating and characterizing lesions. In particular, a metric describing the wash-in phase of perfusion-that is, relative wash-in time-was found to be lower in metastases compared with meningiomas. Contrary to a prior report, we found rCBV to be limited in the evaluation of extraaxial lesions.