To measure T₁ of short T₂ species using an inversion recovery prepared three-dimensional ultrashort echo time (3D IR-UTE) method: A phantom study.

ABSTRACT:

Purpose

To demonstrate the feasibility of a new method for measuring T₁ of short T₂ species based on an adiabatic inversion recovery-prepared three-dimensional ultrashort echo time Cones (3D IR-UTE-Cones) sequence.

Methods

T₁ values for short T₂ species were quantified using 3D IR-UTE-Cones data acquired with different repetition times (TRs) and inversion times (TIs). An inversion efficiency factor Q was introduced into the fitting model to accurately calculate T₁ values for short T₂ species. Experiments were performed on twelve MnCl₂ aqueous solution phantoms with a wide range of T₁ values and T₂* values on a 3 T clinical MR system to verify the efficacy of the proposed method

SUBMITTER: Wei Z 

PROVIDER: S-EPMC7307614 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature