Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Computed Tomography01:10

Computed Tomography

8.8K
Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
8.8K
Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

389
DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
389
Screw: Problem Solving01:21

Screw: Problem Solving

708
In mechanical engineering, the interaction between a threaded screw shaft and a plate gear involves analyzing the resisting torque on the plate gear that can be overpowered when a specific torsional moment is applied to the shaft. To better comprehend this concept, consider a generic situation with a threaded screw shaft with a given mean radius and lead and a plate gear with a specified mean radius. The coefficient of static friction between the screw and gear is also provided.
To evaluate the...
708
Self-Locking Screw01:16

Self-Locking Screw

2.5K
A square-threaded screw jack is a mechanical device widely used for lifting heavy loads or applying considerable force. One of the key features that can make a screw jack more effective and reliable is its self-locking capability.
A square-threaded screw jack carrying a load is considered self-locking if the screw retains its position even after the moment applied to it is removed.
2.5K
Frictional Forces on Screws01:17

Frictional Forces on Screws

1.6K
Screws are characterized by a helical ridge known as a thread wrapped around a cylindrical shaft. They are commonly used as fasteners to hold objects together or to transmit power and motion in machines. One type of screw that is particularly useful for transmitting power is the square-threaded screw.
A jack with a square-threaded screw is a mechanical device used to lift heavy loads by applying a force at its handle. When the force is applied, the screw turns, raising the load. The screw can...
1.6K
Muscles that Move the Head01:19

Muscles that Move the Head

6.0K
The muscles that move the head are a dynamic and complex group of structures that work together to facilitate a wide range of head movements, including rotation, flexion, extension, and lateral bending.
The bilateral sternocleidomastoid, or SCM, and the suprahyoid and infrahyoid muscles are significant head flexors. The SCM muscles originate at the sternum and clavicle and attach to the mastoid process of the temporal bone. The SCM contracts bilaterally to bend the head forward, whereas...
6.0K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Gastrointestinal neuroectodermal tumor (GNET) of the colon: A diagnostic challenge.

Indian journal of pathology & microbiology·2025
Same author

Optimizing Large Language Models in Radiology and Mitigating Pitfalls: Prompt Engineering and Fine-tuning.

Radiographics : a review publication of the Radiological Society of North America, Inc·2025
Same author

A Prototype "Smart" 3-Dimensionally Printed Model Showcasing Interactivity: Implementing Voice Command for the Ventricular and Cisternal Systems.

Journal of computer assisted tomography·2025
Same author

Diagnostic Performance of Renal Contrast Excretion on Early-Phase CT Myelography in Spontaneous Intracranial Hypotension.

AJNR. American journal of neuroradiology·2024
Same author

Diagnostic Yield of Decubitus CT Myelography for Detection of CSF-Venous Fistulas.

AJNR. American journal of neuroradiology·2024
Same author

AI-powered Hyperrealism: Next Step in Cinematic Rendering?

Radiology·2024

Related Experiment Video

Updated: Feb 8, 2026

Pedicle Screw Placement Using an Augmented Reality Head-Mounted Display in a Porcine Model
06:18

Pedicle Screw Placement Using an Augmented Reality Head-Mounted Display in a Porcine Model

Published on: May 24, 2024

2.7K

Head-mounted display augmented reality to guide pedicle screw placement utilizing computed tomography.

Jacob T Gibby1, Samuel A Swenson1, Steve Cvetko2

  • 1School of Medicine and Health Sciences, George Washington University, 2300 I St NW, Washington, DC, 200052, USA.

International Journal of Computer Assisted Radiology and Surgery
|June 24, 2018
PubMed
Summary

Head-mounted display augmented reality (HMD-AR) with CT data successfully guided pedicle screw placement in a phantom model. This novel approach achieved 97% accuracy without real-time fluoroscopy, demonstrating potential for enhanced surgical navigation.

Keywords:
Augmented realityHead-mounted displayHoloLensOpenSightOrthopedic surgerySpinal pedicle

More Related Videos

A Spine Robotic-Assisted Navigation System for Pedicle Screw Placement
06:24

A Spine Robotic-Assisted Navigation System for Pedicle Screw Placement

Published on: May 11, 2020

9.4K
Augmented Reality Navigation-Guided Core Decompression for Osteonecrosis of Femoral Head
06:17

Augmented Reality Navigation-Guided Core Decompression for Osteonecrosis of Femoral Head

Published on: April 12, 2022

4.3K

Related Experiment Videos

Last Updated: Feb 8, 2026

Pedicle Screw Placement Using an Augmented Reality Head-Mounted Display in a Porcine Model
06:18

Pedicle Screw Placement Using an Augmented Reality Head-Mounted Display in a Porcine Model

Published on: May 24, 2024

2.7K
A Spine Robotic-Assisted Navigation System for Pedicle Screw Placement
06:24

A Spine Robotic-Assisted Navigation System for Pedicle Screw Placement

Published on: May 11, 2020

9.4K
Augmented Reality Navigation-Guided Core Decompression for Osteonecrosis of Femoral Head
06:17

Augmented Reality Navigation-Guided Core Decompression for Osteonecrosis of Femoral Head

Published on: April 12, 2022

4.3K

Area of Science:

  • Medical Imaging
  • Surgical Navigation
  • Augmented Reality

Background:

  • Augmented reality (AR) offers significant potential for improving surgical navigation and visualization.
  • Head-mounted displays (HMDs) can integrate virtual information with the real-world surgical field.
  • Computed tomography (CT) data provides detailed anatomical information crucial for surgical planning.

Purpose of the Study:

  • To evaluate the efficacy of head-mounted display augmented reality (HMD-AR) for percutaneous pedicle screw placement.
  • To determine if superimposed CT data on an HMD-AR system can guide accurate pedicle screw placement without fluoroscopy.
  • To assess the precision of HMD-AR guided spinal needle insertion in an opaque lumbar model.

Main Methods:

  • CT imaging of a lumbar spine phantom (L1-L3) was acquired.
  • Virtual trajectories for pedicle screw placement were planned and integrated into a Microsoft HoloLens via Novarad OpenSight.
  • Spinal needles were inserted along virtual guides, with post-insertion CT used to compare actual versus planned trajectories.

Main Results:

  • The AR registration to the phantom showed a mean deviation radius of 2.5 mm.
  • Needle placement accuracy was high, with 97% (35 out of 36) of needles predicted to remain within the pedicles.
  • Mean deviations from the pedicle bone edge were 4.69 mm (mediolateral) and 4.48 mm (craniocaudal).

Conclusions:

  • This study presents the first peer-reviewed evaluation of HMD-AR with superimposed CT guidance for spinal pedicle screw placement.
  • The HMD-AR system demonstrated high accuracy in guiding pedicle cannulation without the need for intraoperative fluoroscopy.
  • This technology holds promise for enhancing the safety and precision of spinal surgical procedures.