Fast bias-corrected conductivity mapping using stimulated echoes.

ABSTRACT:

Objective

To demonstrate the potential of a double angle stimulated echo (DA-STE) method for fast and accurate "full" homogeneous Helmholtz-based electrical properties tomography using a simultaneous B1+ magnitude and transceive phase measurement.

Methods

The combination of a spin and stimulated echo can be used to yield an estimate of both B1+ magnitude and transceive phase and thus provides the means for "full" EPT reconstruction. An interleaved 2D acquisition scheme is used for rapid acquisition. The method was validated in a saline phantom and compared to a double angle method based on two single gradient echo acquisitions (GRE-DAM). The method was evaluated in the brain of a healthy volunteer.

Results

The B1+ magnitude obtained with DA-STE showed excellent agreem

SUBMITTER: Iyyakkunnel S 

PROVIDER: S-EPMC11582100 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature