Diagnostic Ultrasound
Diagnostic Ultrasound - Related Videos
07:12
Diagnostic Ultrasound Imaging of Mouse Diaphragm Function
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Cited by 7 •
2014
Diagnostic ultrasound imaging has proven to be effective in diagnosing various respiratory diseases in human and animal subjects. We demonstrate a comprehensive ultrasound protocol utilized by Dr. Zuo's lab to analyze diaphragm kinetics specifically in mouse models. This is also a non-invasive research technique which can provide quantitative information on mouse respiratory muscle function.
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...
10:21
Microfluidic Applications for Disposable Diagnostics
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Cited by 1 •
2008
In this interview, Dr. Klapperich discusses the fabrication of thermoplastic microfluidic devices and their application for development of new diagnostics.
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.
21:15
Diagnostic Necropsy and Tissue Harvest
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2016
Source: Kay Stewart, RVT, RLATG, CMAR; Valerie A. Schroeder, RVT, RLATG. University of Notre Dame, IN Many animal experiments rely on final data collection time points that are gathered from the harvesting and testing of organs and tissues. The use of appropriate methods for the collection of organs and tissues can impact the quality of the samples and the analysis of the data that is gleaned for the testing of the tissues. The method of euthanasia of the animal can also impact the quality of...
FAQs
Image formation depends on two properties of returning echoes. Their timing indicates where a reflecting tissue boundary lies, while their intensity influences how prominently that boundary appears. By processing these signals together, the system represents internal structures and displays changes as they occur, allowing clinicians to assess anatomy and function during the examination.
Doppler methods examine frequency shifts in the returning sound signals rather than focusing only on structural echoes. These shifts provide information about blood flow, extending the examination from anatomy to circulation. This capability is particularly relevant when clinicians evaluate blood vessels or assess cardiovascular function, where movement of blood contributes important diagnostic information.
Because it does not use ionizing radiation, this technique offers a noninvasive way to obtain imaging while avoiding that type of exposure. Its ability to show anatomy and function dynamically also adds value beyond a static view. These characteristics support repeated or immediate assessment in routine diagnosis, emergency care, and fetal evaluation.
Clinical applications include examination of abdominal organs, the heart, blood vessels, and developing fetuses. The same imaging approach therefore supports both structural assessment and functional evaluation, depending on the body region and the clinical question. Doppler information is especially relevant when the assessment concerns circulation, while real-time imaging supports observation of changing anatomy or function.
Portability allows ultrasound to be used beyond fixed imaging settings, including emergency care and point-of-care assessment. Combined with its relatively low cost and real-time output, this flexibility helps clinicians obtain timely information during evaluation. The technique can therefore contribute to bedside decision-making as well as routine diagnostic examinations.
Real-time imaging lets clinicians observe relevant internal structures while directing a needle toward a selected location. This supports procedures such as biopsies and other needle-placement tasks by providing visual guidance during the intervention rather than relying only on a pre-existing image. The result is an imaging-based approach that connects diagnosis or treatment with immediate anatomical monitoring.