What does FSE optimisation help to prevent in MRI scans?

FSE optimization is particularly focused on addressing phase-related issues in MRI scans, which include the generation of ghosting effects. Ghosting occurs when there are phase errors, typically caused by motion, and can significantly degrade image quality. By optimizing the fast spin echo (FSE) sequences, adjustments can be made to ensure that the data collected is properly phased and that the images produced are free from these artifacts. This is crucial for obtaining clear and diagnostically useful images.

While other options relate to potential MRI challenges, they do not specifically address the primary function of FSE optimization. For instance, signal loss due to noise interference and inadequate signal from fat tissues can be influenced by other factors, such as hardware limitations and sequence parameters, rather than being directly mitigated by FSE optimization. Low contrast images from small vessels are similarly more associated with the nature of the imaging technique and the inherent resolution limits rather than an issue directly linked to phase errors that FSE optimization targets.