Related Experiment Video

Updated: Jul 16, 2026

Magnetic Resonance-Guided Stereotaxy for Infusions to the Pig Brain
08:23

Magnetic Resonance-Guided Stereotaxy for Infusions to the Pig Brain

Published on: March 31, 2023

MRI image overlay: application to arthrography needle insertion

Gregory S Fischer1, Anton Deguet, Csaba Csoma

  • 1Engineering Research Center, Johns Hopkins University, Baltimore, Maryland, USA. gfisch@jhu.edu

Computer Aided Surgery : Official Journal of the International Society for Computer Aided Surgery
|March 17, 2007
PubMed

Insights

This study introduces a novel augmented reality device for Magnetic Resonance Arthrography (MRAr) procedures. The system successfully guided needle insertion into joints in preclinical trials, improving efficiency for diagnosing joint injuries.

Area of Science:

  • Medical Imaging
  • Interventional Radiology
  • Orthopedic Diagnostics

Background:

  • Magnetic Resonance Imaging (MRI) is crucial for interventional guidance.
  • MR Arthrography (MRAr) is the standard for small joint injury assessment.
  • Current MRAr requires separate, guided needle insertion and contrast injection.

Purpose of the Study:

  • To develop an integrated MRAr procedure within conventional high-field MRI scanners.
  • To eliminate the need for separate fluoroscopy or CT guidance for needle insertion.
  • To enhance the efficiency and accessibility of MRAr for joint diagnostics.

Main Methods:

  • Developed a 2D augmented reality image overlay device for needle guidance.
  • Integrated needle insertion and contrast injection into a single MRI session.
  • Conducted preclinical trials on porcine and human cadaver joints.

Main Results:

  • Successful joint space needle insertions were achieved in all preclinical cases.
  • The augmented reality guidance enabled first-attempt accuracy.
  • The proposed method streamlines MRAr without specialized equipment.

Conclusions:

  • The augmented reality MRAr approach is effective and accurate for joint interventions.
  • This innovation simplifies MRAr, making it more accessible.
  • The technique holds promise for improved diagnosis of ligament and fibrocartilage injuries.

More Related Videos

Use of MRI-ultrasound Fusion to Achieve Targeted Prostate Biopsy09:11

Use of MRI-ultrasound Fusion to Achieve Targeted Prostate Biopsy

Published on: April 9, 2019

Related Concept Videos

Magnetic Resonance Imaging01:24

Magnetic Resonance Imaging

Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...
Imaging Studies for Cardiovascular System IV: CMRI01:21

Imaging Studies for Cardiovascular System IV: CMRI

Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...
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.
During an ultrasonography procedure, a handheld device called a...
Imaging Studies IV: Magnetic Resonance Imaging01:27

Imaging Studies IV: Magnetic Resonance Imaging

Introduction:Magnetic Resonance Imaging, or MRI, can include a specialized imaging technique of the urinary system known as Magnetic Resonance Urography (MRU). This radiation-free technique uses strong magnetic fields and radio waves to produce detailed images with the help of a computer. MRU is particularly effective for visualizing fluid-filled structures like the kidneys, ureters, and bladder.Applications of MRI in the Genitourinary SystemKidneys and Ureters: MRI detects tumors, cysts,...