Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Magnetic Resonance Imaging

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 I: CT and MRI

Imaging Studies I: CT and MRI

Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...

You might also read

Related Articles

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

Sort by

Same author

Delayed repair of 15-year inferior rectus entrapment.

Orbit (Amsterdam, Netherlands)·2026

Same author

How to conduct a refractive outcome audit to improve biometry: a step-by-step guide.

Community eye health·2026

Same author

Impact of Neck Dissection on Infrahyoid and Suprahyoid Muscle Dimensions in Head and Neck Cancer.

European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery·2026

Same author

Risk Factors and Individualized Risk Stratification for Sequential Bilateral Rhegmatogenous Retinal Detachment.

Retina (Philadelphia, Pa.)·2026

Same author

Ultrasound biomicroscopy and anterior segment OCT in ocular surface squamous neoplasia: complementary roles, case series, and targeted literature review.

Frontiers in ophthalmology·2026

Same author

Quantifying Orbital Segmentation in Thyroid Eye Disease- Fat to Muscle Ratio Correlates With Restrictive Strabismus.

American journal of ophthalmology·2026

Same journal

Porocarcinoma Arising in a Long-Standing Eviscerated Socket.

Ophthalmic plastic and reconstructive surgery·2026

Same journal

Hyper Immunoglobulin E Syndrome With Conjunctival Molluscum Contagiosum.

Ophthalmic plastic and reconstructive surgery·2026

Same journal

Ethmoiditis Mimicking Acute Dacryocystitis-An Underreported Pathology.

Ophthalmic plastic and reconstructive surgery·2026

Same journal

Orbital Inflammatory Syndrome Associated with Bispecific T-Cell Engager Therapy: Case and Literature Review.

Ophthalmic plastic and reconstructive surgery·2026

Same journal

A Rare Pedunculated Lobular Capillary Hemangioma of the Conjunctiva.

Ophthalmic plastic and reconstructive surgery·2026

Same journal

Core Oculoplastic Procedure Skills for the Comprehensive Ophthalmologist: A Consensus by Delphi Methodology.

Ophthalmic plastic and reconstructive surgery·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Jun 21, 2026

Lesion Explorer: A Video-guided, Standardized Protocol for Accurate and Reliable MRI-derived Volumetrics in Alzheimer's Disease and Normal Elderly

Lesion Explorer: A Video-guided, Standardized Protocol for Accurate and Reliable MRI-derived Volumetrics in Alzheimer's Disease and Normal Elderly

Published on: April 14, 2014

Semiautomated MRI-Based Method for Orbital Volume and Contour Analysis.

Lital Smadar^1,2, Mattan Arazi^1,2, Gahl Greenberg^2,3

¹Orbital Ophthalmic Plastic & Lacrimal Surgery Institute, Goldschleger Eye Institute, Sheba Medical Center, Tel Hashomer.

Ophthalmic Plastic and Reconstructive Surgery

|March 27, 2024

Summary

This summary is machine-generated.

This study introduces a novel semiautomated MRI method for measuring orbital dimensions, which closely correlates with CT scans. This technique offers a valuable tool for assessing orbital pathologies, especially in pediatric patients.

More Related Videos

Application of Deep Learning-Based Medical Image Segmentation via Orbital Computed Tomography

Application of Deep Learning-Based Medical Image Segmentation via Orbital Computed Tomography

Published on: November 30, 2022

Three-Dimensional Reconstruction of Orbital Fractures

Three-Dimensional Reconstruction of Orbital Fractures

Published on: May 16, 2025

Related Experiment Videos

Last Updated: Jun 21, 2026

Lesion Explorer: A Video-guided, Standardized Protocol for Accurate and Reliable MRI-derived Volumetrics in Alzheimer's Disease and Normal Elderly

Lesion Explorer: A Video-guided, Standardized Protocol for Accurate and Reliable MRI-derived Volumetrics in Alzheimer's Disease and Normal Elderly

Published on: April 14, 2014

Application of Deep Learning-Based Medical Image Segmentation via Orbital Computed Tomography

Application of Deep Learning-Based Medical Image Segmentation via Orbital Computed Tomography

Published on: November 30, 2022

Three-Dimensional Reconstruction of Orbital Fractures

Three-Dimensional Reconstruction of Orbital Fractures

Published on: May 16, 2025

Area of Science:

Ophthalmology and Medical Imaging
Radiology and Orbital Mechanics

Background:

Accurate orbital cavity measurements are crucial for managing ocular and orbital diseases.
Computed tomography (CT) is commonly used, but magnetic resonance imaging (MRI) is preferred for soft tissue assessment, particularly in pediatric cases.

Purpose of the Study:

To introduce and validate a novel semiautomated MRI-based approach for depicting orbital shape and dimensions.
To compare MRI-derived orbital measurements with CT-based measurements.

Main Methods:

A retrospective cohort study involving 31 patients with at least one normal orbit who underwent both CT and MRI.
Orbital dimensions (volume, length, depth) were determined using manual segmentation and 3D image processing software.
Comparison of measurements between MRI and CT scans.

Main Results:

A strong correlation was found between CT and MRI measurements for orbital volume (r=0.92), horizontal length (r=0.65), vertical length (r=0.57), and depth (r=0.46).
Mean differences between CT and MRI measurements were minimal, with no statistically significant differences for volume, horizontal length, vertical length, or depth.
The semiautomated MRI method demonstrated high agreement with the gold standard CT measurements.

Conclusions:

The developed semiautomated MRI method accurately calculates orbital volume and contour.
This validated MRI technique is a valuable tool for evaluating various orbital conditions.
The method shows particular promise for pediatric patients where MRI is often indicated.