Aida Kiviniemi1, Harri Merisaari1, Marko Pesola1, Timo Liimatainen2, Hannu Juhani Aronen1, and Ivan Jambor1
The adiabatic T1ρ and RAFF measurements,
RAFF2 and RAFF4, were performed in 28 healthy volunteers (24-69 years) and four
of them had repeated MR scan within 4 weeks to evaluate short term repeatability. The relative differences on the voxel level were below 5% in gray and white
matter for all of the relaxation parameters except of TRAFF4 in gray matter
which was 7.3%. No statistically significant age related changes in white and gray
matter were present as evaluated by adiabatic T1ρ, RAFF2 and RAFF4 imaging.