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Related Concept Videos

Ultrasound II: Endoscopic Ultrasound and FibroScan01:25

Ultrasound II: Endoscopic Ultrasound and FibroScan

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Endoscopic Ultrasound (EUS) and FibroScan are valuable diagnostic tools in gastroenterology and hepatology, each with specific applications and techniques.
Endoscopic Ultrasound (EUS):
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Coping Strategies: Problem Focused01:27

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Coping strategies are methods people use to manage, tolerate, or reduce the effects of stressors. These strategies involve both behavioral and psychological actions to handle stressful situations. One common approach is problem-focused coping, which aims to change or eliminate the source of stress rather than merely addressing its consequences. This method involves taking direct action to resolve the issue causing stress.
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Focusing of Light in the Eye01:16

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Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...
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Coping Strategies: Emotion Focused01:20

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Emotion-focused coping refers to a set of strategies aimed at managing the emotional impact of stressors, rather than directly addressing their causes. This approach involves altering one's emotional response to stressful situations to reduce their psychological effects. For example, individuals might talk with a friend or engage in activities like journaling to express their feelings. Such actions can help achieve emotional clarity or release, providing the psychological stability needed...
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Focus Charting, also known as the focus charting system or "focus documentation," is a systematic documentation approach used in healthcare to organize patient information in medical records.
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Related Experiment Video

Updated: Feb 14, 2026

Evaluating Targeting Accuracy in the Focal Plane for an Ultrasound-guided High-intensity Focused Ultrasound Phased-array System
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[MR-Guided Focused Ultrasound].

Hideki Mochizuki1, Noriaki Hattori

  • 1Department of Neurology, Osaka University Graduate School of Medicine.

Brain and Nerve = Shinkei Kenkyu No Shinpo
|February 13, 2018
PubMed
Summary

MR-guided focused ultrasound offers a less invasive treatment for essential tremor by precisely targeting the brain. This advanced technique may also treat other neurological conditions like Parkinson's disease.

Area of Science:

  • Neurosurgery
  • Medical Imaging
  • Ultrasound Technology

Background:

  • Intracranial thermocoagulation historically required invasive procedures like skin incision or trepanation.
  • Precise intracranial focusing of ultrasound presented significant technical challenges for decades.
  • Recent advancements have overcome these limitations, enabling new therapeutic approaches.

Purpose of the Study:

  • To evaluate the efficacy and potential of MR-guided focused ultrasound (MRgFUS) for neurological treatments.
  • To highlight the technological breakthroughs enabling MRgFUS.
  • To explore the broader applications of MRgFUS beyond essential tremor.

Main Methods:

  • Utilized advancements in ultrasound phased-array transducers for non-invasive intracranial focusing.

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  • Employed magnetic resonance (MR) imaging for real-time intracranial temperature monitoring.
  • Applied MR-guided focused ultrasound (MRgFUS) for treating refractory essential tremor.

    • Main Results:

    • MRgFUS has been successfully established as a treatment for refractory essential tremor.
    • Technological progress has eliminated the need for craniotomy in focused ultrasound procedures.
    • Ongoing studies are investigating the long-term outcomes of this therapeutic approach.

    Conclusions:

    • MR-guided focused ultrasound represents a significant advancement in minimally invasive neurosurgery.
    • The procedure's less invasive nature suggests potential applications for Parkinson's disease, brain tumors, dystonia, and epilepsy.
    • Further research is warranted to fully understand the long-term benefits and applicability of MRgFUS.