Meeting Banner
Abstract #1557

Single Kidney Glomerular Filtration Rate Measurement Using a High Spatiotemporal Resolution View Sharing Technique and 2-Compartment Model

Umit Yoruk1, Manojkumar Saranathan2, Brian Andrew Hargreaves2, Shreyas S. Vasanawala2

1Electrical Engineering, Stanford University, Palo Alto, CA, United States; 2Radiology, Stanford University, Stanford, CA, United States

Glomerular filtration rate (GFR) is an indicator of kidney function and can be measured by dynamic MR Urography (MRU). We assess the GFR estimation based on a high spatiotemporal resolution DCE method called DISCO. The acquisition parameters affect the temporal resolution and the temporal footprint of the dataset. We optimized the acquisition strategy by creating a digital phantom (based on 2-compartment model), simulating the acquisition with different parameters and comparing the estimated Ktrans to the original Ktrans value we used to create the phantom. Upon validation of the method, we presented a clinical case to demonstrate DISCO-MRU.

Keywords

acceleration acquisition administered agent allows alto analyzed aorta array assess bandwidth basis best blood blue breathing bright called central channel clearance clinical collecting combinations compartment concentration consent consistent contrast converted corner cortical coverage covering create created curve curves dataset derived details determine determined differential digital disco dynamic electrical energy engineering enhancement error errors estimation extracted feasibility filtration fitting footprint fraction frame free fully function gadolinium gated generate hence indicate indicator informed initial injection inserted intensities intravenously journal kidney kidneys literature lose maps marked matrix measured minutes missing model modeled modeling move nearest neighbor optimal optimized outer overlapping parallel partitions patient pediatric percentage period phantom predicted process progressively pseudo radiology randomly real reconstructed recorded reduce regional resolution resolved respiratory retains sampled scanned scanner selected series sharing side simulation simulations slice slices space spatial spatially strategy structural subject suspected system table temporal tissue torso track unit upper uptake urinary validated various view volume