Malte Laustsen

PhD project by Malte Laustsen

Name: Malte Laustsen
Project Title: Prospective Motion Correction in Magnetic Resonance Imaging
Group: Magnetic Resonance Imaging Acquisition
Supervisors: Lars G. Hanson, Kristoffer H. Madsen (DTU Compute) and Rong Xue (CAS, Beijing)

Project Description: 
While offering high resolution and excellent soft tissue contrast without ionizing radiation, a major downside of MR scanning is a particularly high sensitivity to patient motion. Brain MRI is therefore often affected by errors that either degrade the value, or render the scanning useless. The project investigates a novel motion tracking method that is sufficiently fast for correcting patient motion in real time, and applicable in ultra-high field MR-scanners. It uses electroencephalography (EEG) equipment already found at many MRI sites, and was used to correct both high-resolution brain MRI, and rapid imaging used for functional MRI (fMRI). The project also investigates techniques for monitoring and correcting magnetic field disturbances caused by movement in the scanner, particularly at ultra-high magnetic field strength.

Perspective:
The special ultra-high field research scanners may become wide-spread for diagnostic use, when the technological challenges are solved. They are particularly sensitive to motion, and existing motion-correction methods are only partially compatible. Hence, our new techniques are needed for those as well as for traditional scanners, and they have potential for development into a dedicated tracking device.

Kontakt

Lars G. Hanson
Gruppeleder, Lektor
DTU Sundhedsteknologi
45 25 36 86