Ultrasound Parameters
Ultrasound Parameters - Related Videos
08:21
Point-of-Care Ultrasound: A Review of Ultrasound Parameters for Predicting Difficult Airways
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Cited by 8 •
2023
A point-of-care ultrasound (POCUS) is a simple, non-invasive, and portable tool that enables dynamic airway assessment. Several studies have attempted to determine the role of ultrasound parameters as an adjunct to clinical examination in predicting difficult laryngoscopies.
02:56
Ultrasound-Induced Neuromodulation Using a Microelectrode Array System
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2025
This video demonstrates the method for inducing the modulation of neural activity in cultured human iPSC-derived neurons in a multi-well microelectrode array, or MEA system using a focused ultrasound transducer.
10:53
A Novel Application of Musculoskeletal Ultrasound Imaging
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Cited by 14 •
2013
We describe a new ultrasound-based vector tissue Doppler imaging technique to measure muscle contraction velocity, strain and strain rate with sub-millisecond temporal resolution during dynamic activities. This approach provides complementary measurements of dynamic muscle function and could lead to a better understanding of mechanisms underlying musculoskeletal disorders.
04:57
Non-Invasive High-Frequency Ultrasound and Doppler Imaging of Rat Brain Hemodynamics
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2025
Source: Giustetto, P., et. al., Non-invasive Parenchymal, Vascular and Metabolic High-frequency Ultrasound and Photoacoustic Rat Deep Brain Imaging. J. Vis. Exp. (2015)In this video, we demonstrate the use of high-frequency ultrasound and photoacoustic imaging to study the vasculature and hemoglobin content in the rat brain. This method provides detailed insights into cerebral perfusion and blood oxygenation, enabling non-invasive analysis of brain vascular structures and oxygen distribution.
14:20
High-frequency Ultrasound Imaging of the Abdominal Aorta
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2023
Source: Amelia R. Adelsperger, Evan H. Phillips, and Craig J. Goergen, Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana High-frequency ultrasound systems are used to acquire high resolution images. Here, the use of a state-of-the-art system will be demonstrated to image the morphology and hemodynamics of small pulsatile arteries and veins found in mice and rats. Ultrasound is a relatively inexpensive, portable, and versatile method for the noninvasive...
FAQs
Frequency and wavelength jointly influence how ultrasound propagates through tissue and the spatial detail a system can resolve. Frequency describes the wave’s oscillation rate, whereas wavelength represents the distance between repeating wave features. Considering both during system design helps researchers select settings that balance propagation behavior with the spatial resolution required for imaging or bioengineering measurements.
Amplitude and intensity help determine how much acoustic energy reaches a biological target. Amplitude describes the wave’s size, while intensity represents the energy delivery associated with the ultrasound field. Adjusting these variables can change tissue exposure and response, so protocols should specify them clearly when comparing stimulation, manipulation, or therapeutic-delivery experiments.
Pulse duration and duty cycle control how ultrasound energy is delivered over time. Pulse duration specifies the length of an individual pulse, while duty cycle describes the proportion of time the system is active. Together, they help researchers manage exposure patterns and balance intended tissue stimulation with unwanted heating or mechanical effects during bioengineering experiments.
The intended outcome determines which parameter combination receives priority. Imaging protocols emphasize conditions that support spatial resolution and reproducible detection, whereas therapeutic delivery, tissue stimulation, or acoustic manipulation requires controlled energy delivery and tissue response. Comparing these goals prevents one setting from being applied indiscriminately and aligns frequency, intensity, pulse timing, and exposure with the experiment.
A reproducible protocol should document frequency, wavelength, amplitude, intensity, pulse duration, and duty cycle, together with the intended application and observed tissue response. Recording these variables allows researchers to connect parameter changes with propagation, spatial resolution, energy delivery, heating, or mechanical effects. This practice also supports consistent comparison across bioengineering experiments and device designs.
Researchers tailor the parameter set to the desired outcome, including acoustic manipulation, tissue stimulation, targeted drug delivery, tissue engineering, and noninvasive diagnostics. The selected values influence propagation, spatial resolution, energy delivery, and tissue response. This flexibility allows ultrasound systems to serve both measurement and intervention goals while maintaining attention to heating and mechanical effects.