Abstract #3971
Investigation of the dependence of measured lung T 1 on TE using UTE
Simon MF Triphan 1,2 , Bertram J Jobst 1 , Felix A Breuer 2 , Mark O Wielpuetz 1 , Claus Peter Heussel 3 , Hans-Ulrich Kauczor 1 , Juergen Biederer 1,4 , and Peter M Jakob 2,5
1
Diagnostic and Interventional Radiology,
University Hospital Heidelberg, Heidelberg, Germany,
2
Research
Centre Magnetic Resonance Bavaria e.V., Wuerzburg,
Germany,
3
Dept.
of Radiology, Thoraxklinik Heidelberg, Heidelberg,
Germany,
4
Radiologie
Darmstadt, Darmstadt, Germany,
5
Experimental
Physics 5, University of Wuerzburg, Wuerzburg, Germany
Lung T
1
was
measured using a multi-echo inversion recovery UTE
sequence at TEs between 70μs and 2.3ms in 10 healthy
volunteers. A significant increase of average measured T
1
with
TE was observed, with mean values of 1051ms and 1408ms
for the shortest and longest TE. This TE-dependence is
assumed to reflect separate blood and extravascular
components in the lung that exhibit both different T
1
and
T
2
* times. In consequence, comparison of lung
T
1
values
requires consideration of TE. This effect may also be
exploited to gain information on these compartments.
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