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Ultrasound II: Endoscopic Ultrasound and FibroScan01:25

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Endoscopic Ultrasound (EUS) and FibroScan are valuable diagnostic tools in gastroenterology and hepatology, each with specific applications and techniques.
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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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Introduction:
Abdominal ultrasonography, commonly known as abdominal ultrasound, is a vital, non-invasive medical imaging technique widely used in healthcare.
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Related Experiment Video

Updated: Sep 5, 2025

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Functional Ultrasound Neuroimaging.

Gabriel Montaldo1, Alan Urban1,2, Emilie Macé3,4

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This summary is machine-generated.

Functional ultrasound (fUS) offers high-resolution brain imaging by tracking blood flow changes related to neuronal activity. This review clarifies fUS principles and applications for neuroscientists.

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Area of Science:

  • Neuroscience
  • Medical Imaging
  • Biophysics

Background:

  • Functional ultrasound (fUS) is an advanced neuroimaging technique.
  • It measures cerebral blood volume changes to infer neuronal activity.
  • fUS provides high spatiotemporal resolution imaging in various species.

Purpose of the Study:

  • To demystify the principles and signal nature of fUS for neuroscientists.
  • To present the current state of fUS hardware and applications.
  • To identify future research and development directions for fUS.

Main Methods:

  • Explanation of the physical basis of the fUS signal.
  • Detailed principles of the fUS imaging method.
  • Review of current hardware implementations and applications.

Main Results:

  • fUS enables volumetric imaging of the entire mouse brain.
  • The method is applicable to head-fixed and freely behaving animals.
  • fUS has been successfully applied across species, including primates and humans.

Conclusions:

  • fUS is a maturing neuroimaging technology with broad applicability.
  • Understanding fUS principles is crucial for its wider adoption.
  • Further improvements in fUS technology are anticipated.