Abstract #2540

Ex-Vivo Renal Vascular Dominant Region Mapping using High Resolution 3D-T2w-MRI and Artery-Selective Contrast Injections in Porcine Kidneys

Nathan Sennesael^1,2, Pieter R.E. De Backer^3,4,5, Charlotte Debbaut^4,6, Karel Decaestecker^3,5, Pieter L.J. De Visschere^2,7, Marijn M. Speeckaert^8,9, Saar Vermijs^4,5, Geert Villeirs^2,7, and Pim Pullens^1,2,7

¹GIfMI, Ghent University, Ghent, Belgium, ²Diagnostic Sciences, Ghent University, Ghent, Belgium, ³Urology, Ghent University Hospital, Ghent, Belgium, ⁴IBiTech-bioMMeda, Ghent University, Ghent, Belgium, ⁵Human Structure and Repair, Ghent University, Ghent, Belgium, ⁶Cancer Research Institute Ghent (CRIG), Ghent University, Ghent, Belgium, ⁷Radiology, Ghent University Hospital, Ghent, Belgium, ⁸Nephrology, Ghent University Hospital, Ghent, Belgium, ⁹Internal diseases and Paediatrics, Ghent University, Ghent, Belgium

During partial nephrectomy (PN), a trade-off between clamping arteries to assure optimal conditions for surgery and maximizing oxygenation to tissue unaffected by the tumor, has to be made. Knowledge of the anatomy of the renal vascular dominant regions, can help optimize this trade-off and thus has the potential to significantly improve PN interventions. We found that high resolution 3D-T2w-MRI scans in combination with artery-selective contrast injections is an effective alternative to ex-vivo kidney casting as it allows for 3D mapping of the renal vascular dominant regions and shows potential for segmentation of the renal vascular tree.

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