Abstract #4355
Image co-registration for respiratory triggered and non-triggered DTI of the transplanted kidney
Maryam Seif 1 , Laila Yasmin Mani 2 , Huanxiang Lu 3 , Mauricio Reyes 3 , Bruno Vogt 2 , Chris Boesch 1 , and Peter Vermathen 1
1
Depts Clinical Research and Radiology,
University of Bern, Bern, Bern, Switzerland,
2
Dept.
Nephrology, Hypertension and Clinical Pharmacology,
Inselspital Bern, Bern, Bern, Switzerland,
3
Institute
for Surgical Technology and Biomechanics, University of
Bern, Bern, Bern, Switzerland
DTI-scans are performed employing respiratory-triggering
in native kidneys to reduce severe physiological motion
artifacts caused by respiration. Previous diffusion
measurements in transplanted kidneys have been performed
with and without controlling for respiratory motion. The
aim of this study was to investigate if performing
co-registration on non-triggered DTI may allow omitting
respiratory triggering for transplanted kidneys. The
clear improvement due to co-registration and the small
difference between triggered and non-triggered images
suggest that patients with renal allografts can be
measured without respiratory triggering, but employing
co-registration to improve the stability.
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