An efficient model to guide prospective T2-weighted 4D magnetic resonance imaging acquisition.

ABSTRACT:

Purpose

To establish a mathematical model to guide prospective T2-weighted four-dimensional magnetic resonance imaging (4DMRI) acquisition and to propose an efficient solution to expedite prospective T2-weighted 4DMRI acquisition.

Methods

Prospective T2-weighted 4DMRI acquisition was characterized by a mathematical model with 4DMRI acquisition time as the objective function and completeness of the image set, acquisition timing, image contrast, and image artifacts as constraints. Given the irregular nature of human respiration, an efficient solution based on the greedy strategy (ESGS) was proposed. The efficiency of the ESGS method was validated using healthy human subjects. Comparisons were made with the previous 4DMRI method incorporating the prefixed-order respiratory stat

SUBMITTER: Du D 

PROVIDER: S-EPMC5997551 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature