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@ARTICLE{Rengier:130398,
author = {F. Rengier$^*$ and S. Wörz$^*$ and C. Melzig and S. Ley
and C. Fink and N. Benjamin and S. Partovi and H. von
Tengg-Kobligk$^*$ and K. Rohr$^*$ and H.-U. Kauczor$^*$ and
E. Grünig},
title = {{A}utomated 3{D} {V}olumetry of the {P}ulmonary {A}rteries
based on {M}agnetic {R}esonance {A}ngiography {H}as
{P}otential for {P}redicting {P}ulmonary {H}ypertension.},
journal = {PLoS one},
volume = {11},
number = {9},
issn = {1932-6203},
address = {Lawrence, Kan.},
publisher = {PLoS},
reportid = {DKFZ-2017-05477},
pages = {e0162516 -},
year = {2016},
abstract = {To demonstrate feasibility of automated 3D volumetry of
central pulmonary arteries based on magnetic resonance
angiography (MRA), to assess pulmonary artery volumes in
patients with pulmonary hypertension compared to healthy
controls, and to investigate the potential of the technique
for predicting pulmonary hypertension.MRA of pulmonary
arteries was acquired at 1.5T in 20 patients with pulmonary
arterial hypertension and 21 healthy normotensive controls.
3D model-based image analysis software was used for
automated segmentation of main, right and left pulmonary
arteries (MPA, RPA and LPA). Volumes indexed to vessel
length and mean, minimum and maximum diameters along the
entire vessel course were assessed and corrected for body
surface area (BSA). For comparison, diameters were also
manually measured on axial reconstructions and double
oblique multiplanar reformations. Analyses were performed by
two cardiovascular radiologists, and by one radiologist
again after 6 months.Mean volumes of MPA, RPA and LPA for
patients/controls were 5508 ± 1236/3438 ± 749, 3522 ±
934/1664 ± 468 and 3093 ± 692/1812 ± 474 μl/(cm length x
m2 BSA) (all p<0.001). Mean, minimum and maximum diameters
along the entire vessel course were also significantly
increased in patients compared to controls (all p<0.001).
Intra- and interobserver agreement were excellent for both
volume and diameter measurements using 3D segmentation
(intraclass correlation coefficients 0.971-0.999, p<0.001).
Area under the curve for predicting pulmonary hypertension
using volume was 0.998 $(95\%$ confidence interval
0.990-1.0, p<0.001), compared to 0.967 using manually
measured MPA diameter $(95\%$ confidence interval 0.910-1.0,
p<0.001).Automated MRA-based 3D volumetry of central
pulmonary arteries is feasible and demonstrated
significantly increased volumes and diameters in patients
with pulmonary arterial hypertension compared to healthy
controls. Pulmonary artery volume may serve as a superior
predictor for pulmonary hypertension compared to manual
measurements on axial images but verification in a larger
study population is warranted.},
keywords = {BIRC5 protein, human (NLM Chemicals) / Inhibitor of
Apoptosis Proteins (NLM Chemicals) / Integrin alpha5beta1
(NLM Chemicals) / Intracellular Signaling Peptides and
Proteins (NLM Chemicals) / PEA15 protein, human (NLM
Chemicals) / Phosphoproteins (NLM Chemicals) / TP53 protein,
human (NLM Chemicals) / Tumor Suppressor Protein p53 (NLM
Chemicals)},
cin = {B080 / E015 / E010},
ddc = {500},
cid = {I:(DE-He78)B080-20160331 / I:(DE-He78)E015-20160331 /
I:(DE-He78)E010-20160331},
pnm = {312 - Functional and structural genomics (POF3-312)},
pid = {G:(DE-HGF)POF3-312},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:27626802},
pmc = {pmc:PMC5023190},
doi = {10.1371/journal.pone.0162516},
url = {https://inrepo02.dkfz.de/record/130398},
}