2017 Imaging for Physicists Coursebook

T1 relaxation

• Spin-lattice or longitudinal relaxation • Restoring longitudinal magnetization after RF excitation • T1 – Time until 63% of the initial magnetization M0 is restored

Adipose tissue – 240ms Spinal fluid – 4300ms Gray matter – 980ms White matter – 780ms Muscles – 880ms

ି ௧

்ଵൗ

௭

଴

980ms