par Metens, Thierry 
;Papanikolaou, Nickolas
Référence Diffusion Weighted Imaging of the Gastrointestinal Tract: Techniques and Clinical Applications, Springer International Publishing, page (1-13)
Publication Publié, 2018-01
;Papanikolaou, NickolasRéférence Diffusion Weighted Imaging of the Gastrointestinal Tract: Techniques and Clinical Applications, Springer International Publishing, page (1-13)
Publication Publié, 2018-01
Partie d'ouvrage collectif
| Résumé : | Diffusion-weighted imaging, although based on an old concept, has been introduced in the clinical imaging protocols only during the last decade. Particularly in the gastrointestinal tract, there are many technical challenges related to the presence of physiologic motion in the form of peristalsis and respiration that in principle can hamper image quality of diffusion images. State-of-the-art gradient systems and radiofrequency coils may reduce these problems and thus provide adequate quality for diagnostic purposes. Different models have been tested and evaluated, while their corresponding imaging biomarkers are still under investigation to determine their clinical yield. Currently, diffusion-weighted imaging is predominantly used to improve lesion conspicuity and in some cases to provide tissue characterization or even assess treatment response. |
