Measurement of Pulsatile Brain Motion in a Patient with a Meningioma
Soellinger M, Rutz A, Kozerke S, Boesiger P, Bjeljac M
University and ETH Zurich
The intracranial blood flow, which initiates pulsatile expansion of brain tissue can be interpreted as an internal force. Alterations of the elastic properties of brain tissue are reflected in changes of brain displacement maps. Such displacement maps were acquired from a patient with a meningioma. A 2D cine DENSE imaging method was used. Strain maps were derived from the displacement maps. The displacement maps showed reduced tissue displacement within the tumor. The strain maps derived from anterior-posterior displacements indicated a stiffer mass compared to surrounding tissue at the location of the tumor.