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@ARTICLE{Weber:128504,
author = {T. F. Weber and T. Müller and A. Biesdorf and S. Wörz$^*$
and F. Rengier and T. Heye and T. Holland-Letz$^*$ and K.
Rohr$^*$ and H.-U. Kauczor and H. von Tengg-Kobligk$^*$},
title = {{T}rue four-dimensional analysis of thoracic aortic
displacement and distension using model-based segmentation
of computed tomography angiography.},
journal = {The international journal of cardiovascular imaging},
volume = {30},
number = {1},
issn = {1573-0743},
address = {Dordrecht [u.a.]},
publisher = {Springer},
reportid = {DKFZ-2017-04520},
pages = {185 - 194},
year = {2014},
abstract = {Previous analyses of aortic displacement and distension
using computed tomography angiography (CTA) were performed
on double-oblique multi-planar reformations and did not
consider through-plane motion. The aim of this study was to
overcome this limitation by using a novel computational
approach for the assessment of thoracic aortic displacement
and distension in their true four-dimensional extent. Vessel
segmentation with landmark tracking was executed on CTA of
24 patients without evidence of aortic disease. Distension
magnitudes and maximum displacement vectors (MDV) including
their direction were analyzed at 5 aortic locations: left
coronary artery (COR), mid-ascending aorta (ASC),
brachiocephalic trunk (BCT), left subclavian artery (LSA),
descending aorta (DES). Distension was highest for COR (2.3
± 1.2 mm) and BCT (1.7 ± 1.1 mm) compared with ASC, LSA,
and DES (p < 0.005). MDV decreased from COR to LSA (p <
0.005) and was highest for COR (6.2 ± 2.0 mm) and ASC (3.8
± 1.9 mm). Displacement was directed towards left and
anterior at COR and ASC. Craniocaudal displacement at COR
and ASC was 1.3 ± 0.8 and 0.3 ± 0.3 mm. At BCT, LSA, and
DES no predominant displacement direction was observable.
Vessel displacement and wall distension are highest in the
ascending aorta, and ascending aortic displacement is
primarily directed towards left and anterior. Craniocaudal
displacement remains low even close to the left cardiac
ventricle.},
cin = {B080 / C060 / E010},
ddc = {610},
cid = {I:(DE-He78)B080-20160331 / I:(DE-He78)C060-20160331 /
I:(DE-He78)E010-20160331},
pnm = {315 - Imaging and radiooncology (POF3-315)},
pid = {G:(DE-HGF)POF3-315},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:24135852},
doi = {10.1007/s10554-013-0307-6},
url = {https://inrepo02.dkfz.de/record/128504},
}