Document detail
ID
doi:10.1007/s40620-022-01539-y...
Author
Liang, Cecilia Heister, David J. Guthoff, Martina Grözinger, Gerd Martirosian, Petros Seith, FerdinandLangue
enEditor
Springer
Category
Urology
Year
2023
listing date
2/1/2023
Keywords
arterial spin labeling transplant kidney diffusion weighted imaging perfusion imaging arteriovenous fistula renal functionalAbstract
Acute allograft injury was observed in a 37-year-old woman within a few weeks after kidney transplantation.
Neither renal ultrasound nor computerized tomography (CT) and magnetic resonance (MR) angiography revealed any anomaly.
An MR protocol was then performed including arterial spin labeling and intravoxel incoherent motion diffusion weighted imaging.
Both arterial spin labeling and the perfusion fraction in the diffusion weighted imaging showed decreased perfusion compared to reference values.
The patient subsequently underwent angiography, where an arteriovenous fistula in the upper calix of the transplant kidney was detected and immediate embolization was performed.
A second functional MR, performed one week later, demonstrated a 40% increase in organ perfusion.
We conclude that functional MR with arterial spin labeling and intravoxel incoherent motion have the potential to provide complementary information of clinical value to conventional imaging for monitoring renal allografts.
Liang, Cecilia,Heister, David J.,Guthoff, Martina,Grözinger, Gerd,Martirosian, Petros,Seith, Ferdinand, 2023, Functional MRI to quantify perfusion changes of a renal allograft after embolization of an arteriovenous fistula, Springer
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