ArticleScientific reports2016
X-ray PIV measurement of blood flow in deep vessels of a rat: An in vivo feasibility study.
Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Non-survival rat endovascular testbed for early-stage evaluation of untethered magnetic microrobots.MethodsX · 2026Article
- Physiologically Adaptive Soft Millirobot for Atraumatic Endovascular Therapy.Advanced functional materials · 2026Article
- Dual-Modality Ultrasound Imaging of SPIONs Distribution via Combined Magnetomotive and Passive Cavitation Imaging.Sensors (Basel, Switzerland) · 2025Article
- Physiologically Adaptive Soft Millirobot for Atraumatic, Image-Guided Endovascular Therapy.Research square · 2025Article
- Dynamic laboratory x-ray phase-contrast microtomography with structure-based prior regularisation.Measurement science & technology · 2025Article
- Measurement in opaque flows: a review of measurement techniques for dispersed multiphase flows.Acta mechanica · 2020Review
- Detection of arterial wall abnormalities via Bayesian model selection.Royal Society open science · 2019Article
- Polymeric perfluorocarbon nanoemulsions are ultrasound-activated wireless drug infusion catheters.Biomaterials · 2019Article
- In vivo measurement of hemodynamic information in stenosed rat blood vessels using X-ray PIV.Scientific reports · 2016Article
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Authors and funding
3 authors.
Funding
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Abstract
X-ray PIV measurement is a noninvasive approach to measure opaque blood flows. However, it is not easy to measure real pulsatile blood flows in the blood vessels located at deep position of the body, because the surrounding tissues significantly attenuate the contrast of X-ray images. This study investigated the effect of surrounding tissues on X-ray beam attenuation by measuring the velocity fields of blood flows in deep vessels of a live rat. The decrease in image contrast was minimized by employing biocompatible CO2 microbubbles as tracer particles. The maximum measurable velocity of blood flows in the abdominal aorta of a rat model was found through comparative examination between the PIV measurement accuracy and the level of image contrast according to the input flow rate. Furthermore, the feasibility of using X-ray PIV to accurately measure in vivo blood flows was demonstrated by determining the velocity field of blood flows in the inferior vena cava of a rat. This study may serve as a reference in conducting in vivo X-ray PIV measurements of pulsatile blood flows in animal disease models and investigating hemodynamic characteristics and circulatory vascular diseases.
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Registered trials
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