Related Experiment Video
Updated: Jun 12, 2025
Multiplexing Focused Ultrasound Stimulation with Fluorescence Microscopy
Published on: January 7, 2019
Ultrasound Physics
Hamid Shokoohi1, David Chu2, Nour Al Jalbout1
1Department of Emergency Medicine, Harvard Medical School, 25 Shattuck Street, Boston, MA 02115, USA; Department of Emergency Medicine, Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114, USA; Harvard Medical School, 25 Shattuck Street, Boston, MA 02115, USA.
This article explains fundamental ultrasound physics, including sound wave properties, tissue interactions, artifacts, and machine controls (knobology). Understanding these basics is crucial for effective point-of-care ultrasound (POCUS) use in clinical practice.
Area of Science:
- Medical Imaging
- Ultrasound Physics
Background:
- Point-of-care ultrasound (POCUS) is increasingly utilized across diverse clinical environments.
- A strong grasp of ultrasound fundamentals is essential for POCUS practitioners.
Purpose of the Study:
- To elucidate core principles of ultrasound physics relevant to POCUS.
- To connect theoretical concepts to practical clinical applications.
Main Methods:
- Review and synthesis of fundamental ultrasound physics concepts.
- Discussion of sound wave propagation and tissue interactions.
- Explanation of common ultrasound artifacts and machine controls (knobology).
Main Results:
- Detailed explanation of ultrasound wave properties.
- Analysis of how ultrasound interacts with different biological tissues.
- Identification and description of prevalent ultrasound artifacts.
- Guidance on optimizing image acquisition using machine controls.
Conclusions:
- A comprehensive understanding of ultrasound physics enhances POCUS performance.
- Knowledge of physics, artifacts, and knobology directly impacts clinical diagnostic accuracy.
- This foundational knowledge is vital for safe and effective POCUS utilization.
More Related Videos
Related Concept Videos
01:17Ultrasonography
During an ultrasonography procedure, a handheld device called...
01:20Ultrasound I: Abdominal Ultrasonography
Abdominal ultrasonography, commonly known as abdominal ultrasound, is a vital, non-invasive medical imaging technique widely used in healthcare.
Procedure:
This diagnostic tool allows the clinician to visually inspect internal structures within the abdomen, including vital organs such as the liver, gallbladder, pancreas, kidneys, and spleen.
The abdominal ultrasound process begins with applying a special gel to the patient's skin over the abdomen. This gel enhances the...
01:19Assessing Blood pressure using a doppler ultrasound
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
01:25Ultrasound II: Endoscopic Ultrasound and FibroScan
Endoscopic Ultrasound (EUS):
01:05Intensity and Pressure of Sound Waves
Unlike the time average of a sinusoidal term, which is zero since it is positive...
01:17Sound as Pressure Waves
The pressure fluctuation depends on the difference in displacements between the successive points in the...