Ultrasound Monitoring
Ultrasound Monitoring - Related Videos
07:38
Real-time Monitoring of High Intensity Focused Ultrasound (HIFU) Ablation of In Vitro Canine Livers Using Harmonic Motion Imaging for Focused Ultrasound (HMIFU)
0 Views •
Cited by 13 •
2015
This article describes real-time monitoring of HIFU ablation in canine liver with high frame rate ultrasound imaging using diverging and plane wave imaging. Harmonic Motion Imaging for Focused Ultrasound is used to image the decrease of acoustic radiation force induced displacement in the ablated region.
14:20
High-frequency Ultrasound Imaging of the Abdominal Aorta
0 Views •
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...
03:32
Monitoring Blood-Brain Barrier Opening in Rats with a Preclinical Focused Ultrasound System
0 Views •
Cited by 1 •
2024
This study describes a combined magnetic resonance imaging (MRI) and low-intensity pulsed focused ultrasound (FUS) protocol, utilizing living rats with jugular vein catheterization to monitor blood-brain barrier (BBB) opening.
09:41
Functional Transcranial Doppler Ultrasound for Monitoring Cerebral Blood Flow
0 Views •
Cited by 8 •
2021
Functional transcranial Doppler ultrasound complements other functional imaging modalities, with its high temporal resolution measurement of stimulus-induced changes in cerebral blood flow within the basal cerebral arteries. This Methods paper gives step-by-step instructions for using functional transcranial Doppler ultrasound to perform a functional imaging...
08:41
Ultrasound Velocity Measurement in a Liquid Metal Electrode
0 Views •
Cited by 14 •
2015
Ultrasound velocimetry is used to study mixing by fluid flow in liquid metal electrodes. The focus of this manuscript is to illustrate the methods used for making precise, spatially-resolved ultrasound measurements while limiting oxidation and controlling and monitoring temperature, applied current, and the heater power being supplied.
FAQs
Returning echoes vary according to the structures that reflect the sound pulses and how those structures move. Monitoring these patterns over repeated examinations can show changes in tissue appearance, organ motion, or physiological activity. This makes the technique useful when clinicians need to evaluate not only what is present at one moment, but also how a condition develops over time.
A single examination provides a snapshot, whereas repeated observations show whether a finding is stable, changing, or responding to treatment. Tracking motion, echo patterns, or blood flow over time can reveal evolving physiological processes that may not be apparent in one assessment. This time-based information supports earlier recognition of changes and more informed clinical decisions.
Changes in returning echoes can provide information about blood flow as well as movement and structural appearance. Repeated assessment allows clinicians to observe how circulation-related findings change during monitoring. Vascular studies use this capability to evaluate blood-flow patterns without relying on ionizing radiation, adding functional information to the visual assessment of tissues and organs.
Ultrasound monitoring uses high-frequency sound waves rather than ionizing radiation, so it can provide repeated real-time assessments without adding radiation exposure. That distinction is especially relevant when clinicians need to follow a process over time, assess motion, or monitor treatment response. It may also reduce reliance on radiation-based or more invasive approaches when appropriate for the clinical question.
The examination centers on positioning a transducer to send sound pulses into the body and receive returning echoes. The system converts those echoes into images that can be viewed in real time, while repeated assessments allow comparison of motion, appearance, or blood-flow findings. Clinicians then interpret changes in relation to the organ, tissue, or process being evaluated.
Clinical uses include fetal assessment, cardiac examinations, vascular studies, and image-guided procedures. The method is also valuable for tracking treatment responses because it can display changing findings in real time. By supplying noninvasive, time-sensitive information, it helps clinicians monitor physiological processes, guide interventions, and make decisions while limiting dependence on more invasive or radiation-based methods.