January 1, 2015Artery ResearchOpen Access

Performance assessment of pulse wave imaging using conventional ultrasound in canine aortas ex vivo and normal human arteries in vivo

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Why the study?

Does optimizing image acquisition and signal processing parameters improve the precision and reliability of pulse wave imaging (PWI) in ex vivo canine aortas and in vivo human arteries?

Population

2 ex vivo canine aortas and 10 healthy human volunteers (mean age 24.8 ± 3.3 years)

Authors

RLRonny X. LiColumbia University WQWilliam W. QaqishColumbia University EKElisa E. KonofagouColumbia University

Discussion

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Implication

Optimizing PWI parameters may improve research measurement precision; leaves open clinical adoption and outcome impact.

Structured PICO

Does optimizing image acquisition and signal processing parameters improve the precision and reliability of pulse wave imaging (PWI) in ex vivo canine aortas and in vivo human arteries?

Population

2 ex vivo canine aortas and 10 healthy human volunteers (mean age 24.8 ± 3.3 years)

Intervention

Pulse wave imaging (PWI) using conventional ultrasound with varying image acquisition (scan lines, frame rate) and signal processing (temporal upsampling, waveform tracking features) parameters

Outcome

Precision of pulse wave velocity (PWV) measurement (PWV SNR) and pulse wave propagation uniformity (r2)surrogate

Optimizing spatial resolution (24-48 scan lines) and tracking the 50% upstroke of the waveform improves the precision and reliability of pulse wave imaging for measuring pulse wave velocity using conventional ultrasound.

Limitations

Ex vivo aortas were from two different canines and subject to different levels of tension
Lack of exact ground truth PWV for complete validation of the beam sweep compensation scheme
In vivo results may be specific to the standardized imaging location and normal subject population

Cite This Study

Li et al. (2015) studied this question.

synapsesocial.com/papers/6a71e22b6ceb2bbd16e0405f https://doi.org/10.1016/j.artres.2015.06.001

View Full Paper

Ask AI

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Performance assessment of pulse wave imaging using conventional ultrasound in canine aortas ex vivo and normal human arteries in vivo

Discussion

Member takes

Implication

Structured PICO

Limitations

Cite This Study

Performance assessment of pulse wave imaging using conventional ultrasound in canine aortas ex vivo and normal human arteries in vivo

Discussion

Member takes

Implication

Structured PICO

Limitations

Cite This Study

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