In vivo evaluation of population-specific inversion pulses in parallel transmission.

ABSTRACT:

Purpose

The aim of the study was to conduct in vivo evaluation of population-specific pulses in the context of the MP2RAGE sequence for brain imaging at 7T.

Methods

Five clusters were identified in a cohort of 39 volunteers. One cluster centered around the average head shape and position, whereas four others were located toward the extremes of the population distribution. Additionally, the one-size-fits-all solution was considered, using a standard universal pulse (UP) approach. Head shapes were characterized using lateral head breadth (HB), anterior-posterior head length (HL), and Y-shift metrics. For each group, a 5kT-points universal inversion pulse was computed and evaluated on four new test anatomies. A Python pipeline was integrated into the image reconstruction routin

SUBMITTER: Tyshchenko I 

PROVIDER: S-EPMC12393190 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature