AI Article Synopsis

  • * Sixteen kidney transplant patients were assessed, categorized into those with normal and malfunctioning allografts, using SRI to measure microvascular density and flow.
  • * Results indicate that SRI provides better imaging of kidney microvasculature than standard methods, with microvascular density and time to peak being significant indicators of allograft failure.

Article Abstract

Background: The purpose of this study was to examine the feasibility and practical application of ultrasound (US) super-resolution imaging (SRI) in evaluating microvasculature and measuring renal allograft function.

Methods: Sixteen consecutive patients who received kidney transplants were prospectively enrolled. The patients were assigned as: normal allograft function (n = 6), and allograft malfunction (n = 10). Localizing each potential contrast signal resulted in super-resolution images (SRI). SRI was utilized to assess micro-vessel density (MVD) and microvascular flow rate, whereas contrast-enhanced (CE) US images were statistically processed to get the time to peak (TTP) and peak intensity. Logistic regression was utilized to evaluate their relationship.

Results: US SRI may be utilized effectively on allografts to show microvasculature with significantly higher resolution than typical color Doppler flow and CEUS pictures. In the multivariate analysis, MVD and TTP were significant US markers of renal allograft failure (p = 0.031 and p = 0.045). The combination of MVD and TTP produced an AUC of 0.783 (p < 0.05) for allograft dysfunction.

Conclusions: SRI can accurately portray the microvasculature of renal allografts, while MVD and TTP are appropriate US markers for assessing renal allograft failure.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11380004PMC
http://dx.doi.org/10.1016/j.heliyon.2024.e36515DOI Listing

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