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@ARTICLE{Wang:306610,
author = {Y. Wang$^*$ and M. W. May and M. Gratz and M. Ladd$^*$ and
S. Orzada$^*$},
title = {{U}ltimate {I}ntrinsic {SNR} in the {T}orso of {R}ealistic
{B}ody {M}odels.},
journal = {Magnetic resonance in medicine},
volume = {95},
number = {4},
issn = {1522-2594},
address = {New York, NY [u.a.]},
publisher = {Wiley-Liss},
reportid = {DKFZ-2025-02647},
pages = {2409-2419},
year = {2026},
note = {#EA:E020#LA:E020# / 2026 Apr;95(4):2409-2419},
abstract = {This work aims to investigate how the ultimate intrinsic
signal-to-noise ratio (uiSNR) varies with increasing static
magnetic field B 0 $$ {B}_0 $$ in the torso of realistic
body models.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 B 0 $$ {B}_0 $$ ranges.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 B
0 $$ {B}_0 $$ with small variation throughout the torso
(Ella: uiSNR ∝ B0 0.96±0.07, Duke: uiSNR ∝ B0
0.98±0.10). In an upper magnetic field range (from 5 to 14
T), the uiSNR increases superlinearly in the torso (Ella:
uiSNR ∝ B0 1.86±0.25, Duke: uiSNR ∝ B0 1.99±0.28),
with a larger variation correlated to the heterogeneous
structure of the body model.The superlinear scaling exponent
in the upper magnetic field range indicates the promise of
applying UHF MRI for body imaging.},
keywords = {MRI (Other) / in silico (Other) / torso (Other) / uiSNR
(Other)},
cin = {E020},
ddc = {610},
cid = {I:(DE-He78)E020-20160331},
pnm = {315 - Bildgebung und Radioonkologie (POF4-315)},
pid = {G:(DE-HGF)POF4-315},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:41299668},
doi = {10.1002/mrm.70202},
url = {https://inrepo02.dkfz.de/record/306610},
}