Show pageBacklinksCite current pageExport to PDFFold/unfold allBack to top This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong. ====== Spin-echo sequence ====== The spin echo pulse sequence is the most commonly used [[pulse sequence]]. The pulse sequence timing can be adjusted to give [[T1]]-weighted, Proton or spin density, and [[T2]]-weighted images. Dual echo and multiecho sequences can be used to obtain both proton density and T2-weighted images simultaneously. The two variables of interest in spin echo sequences is the repetition time (TR) and the echo time (TE). All spin echo sequences include a slice selective 90 degree pulse followed by one or more 180 degree refocusing pulses. spin-echo_sequence.txt Last modified: 2025/04/29 20:23by 127.0.0.1