Budućnost tehnika korekcije artefakta micanja na MR uređaju

Abstract

Motion during the MR examination affects the degradation of the image in the form of „ghosting“ or blurring and is one of the last major unresolved issues. The patient’s movements can be of different scope, directions and orientation, making it difficult to find a solution from the early days of MR (Magnetic Resonance) development. Today, there are three main strategies for combating motion artefacts: motion prevention, motion reduction and motion correction. Due to the lack of possibilities and exhausted ideas, most work is being done on the development of motion correction using MR navigators or prospective and retrospective methods. Of the future techniques, the most promising are SMS (Simultaneous Multi-Slice) sequences and CS (Compres­sed Sensing) due to the resistance to movement and shorter recording time compared to conventional sequences. There is currently no general solution for the artefact of motion, but the problem is approached according to a specific case by choosing the method with the least shortcomings and taking into account the type of movement and the sequence of selection. More research is needed in clinical settings given the complexity and diversity of the problem with the involvement of a multidisciplinary team.