Long-T2 suppression based on saturation and diffusion in a steady-state 3D-UTE sequence

Lucas Soustelle (1) , Julien Lamy (1) , Paulo Loureiro de Sousa (1) , François Rousseau (2, 3) , Jean-Paul Armspach (1)

1 ICube - Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie
2 ITI - Département Image et Traitement Information
3 LaTIM - Laboratoire de Traitement de l'Information Medicale

A new method for long-T2 suppression in a prepared steady-state 3D-UTE sequence is introduced. The method is based on long-T2 signal behavior in steady-state as the diffusion-inducing spoiling gradients are modified, giving a theoretical signal cancellation using appropriate coherence combinations. At the same time, short-T2 signal quantity is optimized, offering a positive contrast over this component. Imaging experiments over a Lego brick soaked in doped water show an excellent agreement with theoretical predictions.

Domaines: Traitement du signal et de l'image [eess.SP]; Imagerie

Lucas Soustelle, Julien Lamy, Paulo Loureiro de Sousa, François Rousseau, Jean-Paul Armspach. Long-T2 suppression based on saturation and diffusion in a steady-state 3D-UTE sequence. ISMRM'17 : 25th Annual Meeting & Exhibition of the International Society for Magnetic Resonance in Medicine, Apr 2017, Honolulu, United States. ⟨hal-01802711⟩