Ultimate Intrinsic SNR in the Torso of Realistic Body Models.

ABSTRACT:

Purpose

This work aims to investigate how the ultimate intrinsic signal-to-noise ratio (uiSNR) varies with increasing static magnetic field B0$$ {B}_0 $$ in the torso of realistic body models.

Methods

A dipole cloud was positioned around the realistic body model and randomly excited. The volume integral solver MARIE was used to calculate the corresponding electromagnetic fields. The uiSNR maps were calculated using these electromagnetic bases and were fitted with the power law for different B0$$ {B}_0 $$ ranges.

Results

The uiSNR could be reliably calculated in regions deeper than 3 cm, where convergence of uiSNR over the number of basis vectors was achieved. In a lower magnetic field range (from 0.55 to 3 T), the uiSNR increases roughly linearly versus B0$$ {B}_0 $$

SUBMITTER: Wang Y 

PROVIDER: S-EPMC12850614 | biostudies-literature | 2026 Apr

REPOSITORIES: biostudies-literature