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@ARTICLE{Kalc:1034099,
author = {Kalc, Polona and Hoffstaedter, Felix and Luders, Eileen and
Gaser, Christian and Dahnke, Robert},
title = {{A}pproximation of bone mineral density and subcutaneous
adiposity using {T}1-weighted images of the human head},
journal = {Imaging neuroscience},
volume = {2},
issn = {2837-6056},
address = {Cambridge, MA},
publisher = {MIT Press},
reportid = {FZJ-2024-06920},
pages = {1 - 13},
year = {2024},
abstract = {Bones and brain are intricately connected and scientific
interest in their interaction is growing. This has become
particularly evident in the framework of clinical
applications for various medical conditions, such as obesity
and osteoporosis. The adverse effects of obesity on brain
health have long been recognised, but few brain imaging
studies provide sophisticated body composition measures.
Here, we propose to extract the following bone- and
adiposity-related measures from T1-weighted MR images of the
head: an approximation of skull bone mineral density (BMD),
skull bone thickness, and two approximations of subcutaneous
fat (i.e., the intensity and thickness of soft non-brain
head tissue). The reliability and validity of these four
distinct measures were tested in two large-scale databases,
the UK Biobank and OASIS-3. The measures pertaining to skull
BMD, skull bone thickness, and intensity-based adiposity
proxy proved to be reliable (ICC = .95/.83/.66, p < .001)
and valid, with high correlations to DXA-derived head BMD
values (rho = .70, p < .001) and MRI-derived abdominal
subcutaneous adipose volume (rho = .62, p < .001).
Thickness-based adiposity proxy had only a low retest
reliability (ICC = .53, p < .001). The outcomes of this
study constitute an important step towards extracting
relevant non-brain features from available brain scans.},
cin = {INM-7},
ddc = {050},
cid = {I:(DE-Juel1)INM-7-20090406},
pnm = {5251 - Multilevel Brain Organization and Variability
(POF4-525) / 5252 - Brain Dysfunction and Plasticity
(POF4-525)},
pid = {G:(DE-HGF)POF4-5251 / G:(DE-HGF)POF4-5252},
typ = {PUB:(DE-HGF)16},
pubmed = {40800364},
UT = {WOS:001530594800012},
doi = {10.1162/imag_a_00390},
url = {https://juser.fz-juelich.de/record/1034099},
}