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Related Concept Videos

Ultrasonography01:17

Ultrasonography

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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.
During an ultrasonography procedure, a handheld device called...
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Technical Approach for Infrared Tracking for Soft Tissue Navigation with a Holographic Head-Mounted Display and Preclinical Validation
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Head-Mounted Display-Assisted Spatial Guidance in Ultrasonography: A Technical Report.

Kento Odaka1, Kotaro Tachizawa2, Masahide Koyachi2

  • 1Oral and Maxillofacial Radiology, Tokyo Dental College, Tokyo, JPN.

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|October 9, 2025
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Summary
This summary is machine-generated.

Mixed reality (MR) technology, using head-mounted displays (HMDs), shows promise for enhancing ultrasound (US) examinations by improving spatial guidance. This preliminary study suggests MR may complement conventional US, boosting spatial awareness during scans.

Keywords:
head-mounted displaymixed reality in medicinephantom modelultrasonography (us)ultrasound probe training

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Area of Science:

  • Medical Imaging
  • Mixed Reality Technology
  • Ultrasound Applications

Background:

  • Ultrasonography (US) effectiveness in head and neck imaging is limited by anatomical complexity and operator experience.
  • Mixed Reality (MR) technology offers potential for medical applications by overlaying 3D models onto real environments using head-mounted displays (HMDs).

Purpose of the Study:

  • To evaluate a prototype HMD-based system for enhanced spatial guidance in US examinations via MR visualization.
  • To assess the feasibility of MR technology in supporting lesion targeting during US procedures.

Main Methods:

  • A soft tissue phantom with artificial lesions was scanned via CT to create 3D holographic models.
  • A custom MR application on Microsoft HoloLens 2 displayed the models for HMD-assisted US.
  • Six sonographers were divided into conventional US (Group A) and HMD-assisted US (Group B) groups to perform lesion identification tasks.

Main Results:

  • No significant difference in task completion time between Group A (178s) and Group B (293s) (p=0.21).
  • Clinical experience was negatively correlated with task time (R=-0.71), with experienced operators being faster.
  • Group B showed a trend towards fewer missed/false lesions, but this was not statistically significant (p=0.076).

Conclusions:

  • The HMD-based MR guidance system is a feasible approach for supporting lesion targeting in US examinations.
  • MR technology may enhance spatial awareness and complement conventional US in scanning procedures, as suggested by this preliminary phantom study.