Journal article
Three-dimensional morphometric analysis of the renal vasculature
American Journal of Physiology-Renal Physiology, Vol.314(5), pp.F715-F725
2018
Abstract
Vascular topology and morphology are critical in the regulation of blood flow and the transport of small solutes, including oxygen, carbon dioxide, nitric oxide, and hydrogen sulfide. Renal vascular morphology is particularly challenging, since many arterial walls are partially wrapped by the walls of veins. In the absence of a precise characterization of three-dimensional branching vascular geometry, accurate computational modeling of the intrarenal transport of small diffusible molecules is impossible. An enormous manual effort was required to achieve a relatively precise characterization of rat renal vascular geometry, highlighting the need for an automated method for analysis of branched vasculature morphology to allow characterization of the renal vascular geometry of other species, including humans. We present a semisupervised method for three-dimensional morphometric analysis of renal vasculature images generated by computed tomography. We derive quantitative vascular attributes important to mass transport between arteries, veins, and the renal tissue and present methods for their computation for a three-dimensional vascular geometry. To validate the algorithm, we compare automated vascular estimates with subjective manual measurements for a portion of rabbit kidney. Although increased image resolution can improve outcomes, our results demonstrate that the method can quantify the morphological characteristics of artery-vein pairs, comparing favorably with manual measurements. Similar to the rat, we show that rabbit artery-vein pairs become less intimate along the course of the renal vasculature, but the total wrapped mass transfer coefficient increases and then decreases. This new method will facilitate new quantitative physiological models describing the transport of small molecules within the kidney.
Details
- Title
- Three-dimensional morphometric analysis of the renal vasculature
- Authors/Creators
- Z. Khan (Author/Creator) - University of South AustraliaJ.P. Ngo (Author/Creator) - Monash UniversityB. Le (Author/Creator) - Monash UniversityR.G. Evans (Author/Creator) - Monash UniversityJ.T. Pearson (Author/Creator) - Monash UniversityB.S. Gardiner (Author/Creator) - Murdoch UniversityD.W. Smith (Author/Creator) - The University of Western Australia
- Publication Details
- American Journal of Physiology-Renal Physiology, Vol.314(5), pp.F715-F725
- Publisher
- American Physiological Society
- Identifiers
- 991005541832007891
- Copyright
- © 2018 the American Physiological Society
- Murdoch Affiliation
- School of Engineering and Information Technology
- Language
- English
- Resource Type
- Journal article
UN Sustainable Development Goals (SDGs)
This output has contributed to the advancement of the following goals:
Source: InCites
Metrics
13 Record Views
InCites Highlights
These are selected metrics from InCites Benchmarking & Analytics tool, related to this output
- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 1 Clinical & Life Sciences
- 1.55 Urology & Nephrology - General
- 1.55.830 Acute Kidney Injury
- Web Of Science research areas
- Physiology
- Urology & Nephrology
- ESI research areas
- Clinical Medicine