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Renal parenchyma is strongly anisotropic; mechanical properties differ along versus across nephron alignment. In this work, the feasibility of interrogating such directional differences in mechanical property using ARFI is investigated. We hypothesize that: 1) the ratio of ARFI peak displacements (PDs) achieved with the long axis of an asymmetrical ARF PSF oriented along versus across nephron alignment...
The kidney is an anisotropic organ, with higher elasticity along versus across nephrons. The degree of elastic anisotropy in kidney may be diagnostically relevant if properly exploited; however, if improperly controlled, anisotropy may confound stiffness measurements. The purpose of this study is to demonstrate a novel method for selectively exploiting or obviating elastic anisotropy in kidney using...
The current gold standard for monitoring renal transplant status is invasive biopsy, which is controversial due to its associated risk for morbidity and costs. A relevant biopsy alternative could be an imaging technique that exploits the viscoelastic properties of tissue given that renal disease may result in altered viscoelastic relationships between pelvis and parenchyma. Tissue viscoelasticity...
Recently our renal transplant (Tx) program has implemented routine HLA antibody monitoring of allograft recipients. We determined the incidence of donor specific antibody (DSA) in the 6 months – 1 year post-Tx period.155 renal allograft recipients (Tx in 2011-2012) were tested for HLA antibody prior to Tx and 6 – 12 months post-Tx. Pre and post-Tx monitoring of antibodies was determined using flow...
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