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Imaging Studies II: Ultrasonography01:24

Imaging Studies II: Ultrasonography

IntroductionUltrasonography, or renal ultrasound, is a noninvasive medical imaging technique that uses high-frequency sound waves to visualize the kidneys, ureters, bladder, and surrounding tissues.Indications for Urinary System UltrasonographyUrinary system ultrasonography is indicated in various clinical scenarios, such as:Kidney Stones (Urolithiasis): To detect and monitor the size and presence of kidney or urinary tract stones.Hydronephrosis: To assess the dilation of the renal pelvis and...
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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...
Ultrasound II: Endoscopic Ultrasound and FibroScan01:25

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Ultrasonography01:17

Ultrasonography

Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
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Positron Emission Tomography01:29

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Positron emission tomography (PET) is a medical imaging technique involving radiopharmaceuticals — substances that emit short-lived radiation. Although the first PET scanner was introduced in 1961, it took 15 more years before radiopharmaceuticals were combined with the technique and revolutionized its potential.
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Related Experiment Video

Updated: May 8, 2026

Optic Nerve Sheath Point of Care Ultrasound: Image Acquisition
06:09

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Published on: August 18, 2023

Point-of-Care Ultrasound Foundations in Physics and Image Acquisition: An Innovative Hands-on Active Learning

Cherie Tator1, Saul Flores2, Alan Riley3

  • 1Instructor, Huffington Department of Education, Innovation, and Technology, Baylor College of Medicine, School of Medicine.

Mededportal : the Journal of Teaching and Learning Resources
|May 7, 2026
PubMed
Summary

This active learning workshop effectively taught point-of-care ultrasound (POCUS) physics and instrumentation to medical students using hands-on exercises. Students demonstrated improved understanding and image optimization skills, enhancing their foundational knowledge for clinical practice.

Keywords:
AssessmentFeedbackInstrumentationPOCUSUltrasound SkillsWorkshop

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06:50

Troubleshooting FoCUS Image Acquisition: Patient Positioning, Transducer Manipulation, and Image Optimization

Published on: March 3, 2023

Area of Science:

  • Medical Education
  • Ultrasound Physics
  • Medical Instrumentation

Background:

  • Point-of-care ultrasound (POCUS) is a crucial skill in modern medicine.
  • Traditional POCUS training often focuses on patient-based scanning, which can be complex for beginners.
  • Foundational understanding of physics and instrumentation is essential for effective POCUS image acquisition.

Purpose of the Study:

  • To introduce the fundamental principles of POCUS physics and instrumentation.
  • To enhance learner-centered engagement and reduce cognitive load in POCUS education.
  • To connect theoretical concepts of ultrasound physics with practical image acquisition skills.

Main Methods:

  • Developed an innovative, active learning workshop for first-year medical students.
  • Utilized small-group, student-driven exercises with faculty guidance.
  • Employed common household objects (pickles, eggs, olives) for hands-on scanning practice.
  • Focused instruction on image formation principles rather than interpretation.

Main Results:

  • The workshop improved students' understanding of ultrasound physics and its relation to imaging acquisition.
  • 97% of students could select the correct ultrasound probe.
  • 71% of students successfully optimized ultrasound images independently in a subsequent assessment.

Conclusions:

  • An interactive, hands-on workshop using accessible materials can effectively teach POCUS physics and instrumentation.
  • This approach fosters deliberate image acquisition skills, applicable from curriculum to clinical practice.
  • Emphasizing image formation principles provides a strong foundation for POCUS learners.