Related Experiment Video
Updated: Jun 14, 2026

08:18
Three-Dimensional Reconstruction of Orbital Fractures
Published on: May 16, 2025
[Imaging of orbital masses]
1Service d'imagerie, Fondation Rothschild, 25, rue Manin, 75019 Paris, France. fraheran@gmail.com
Neuro-Chirurgie
|April 6, 2010
Summary
Orbital tumors and pseudotumors present non-specifically. Advanced imaging like MRI, CT, and ultrasound are crucial for accurate diagnosis and understanding lesion characteristics.
Area of Science:
- Ophthalmology
- Radiology
- Pathology
Context:
- Orbital masses, including tumors and pseudotumors, present with nonspecific symptoms like exophthalmos, diplopia, and visual loss.
- Accurate etiological diagnosis is essential for effective management of orbital pathologies.
Purpose:
- To review the technical aspects of orbital imaging modalities.
- To describe normal orbital anatomy and its components.
- To outline optimal imaging sequences for specific orbital pathologies and common diseases.
Summary:
- Magnetic Resonance Imaging (MRI) is the primary modality for orbital lesion evaluation, assessing location, components, and effects on adjacent structures.
- Computed Tomography (CT) is indicated for lesions involving orbital walls.
- Ultrasound is useful for anteriorly located masses and vascular lesions.
Impact:
- This review aids clinicians in selecting appropriate imaging techniques for orbital lesions.
- Enhanced understanding of orbital imaging improves diagnostic accuracy and patient management.
- Provides a comprehensive overview of orbital imaging for common diseases and specific pathologies.
Related Concept Videos
Imaging Studies III: Computed Tomography
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...
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...
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...
Imaging Studies VII: Vascular Imaging
DefinitionRenal angiography, also known as renal arteriography, is an imaging technique used to obtain a comprehensive view of blood flow and the vascular structure of blood vessels in the kidneys and surrounding areas.PurposeRenal angiography detects blood vessel abnormalities in the kidneys, such as aneurysms, stenosis, thrombosis, vascular tumors, and renal artery stenosis. It evaluates kidney function and guides interventional treatments like angioplasty or stent placement.Pre-Procedure...
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,...
Imaging Studies II: Positron Emission Tomography and Scintigraphy
Positron Emission Tomography (PET) is a medical imaging technique that provides crucial insights into the body's physiological functions at a molecular level. It is an indispensable resource for diagnosing, staging, and monitoring various illnesses, notably cancer, neurological disorders, and cardiovascular conditions.
Fundamental Principles of PET
Fundamental Principles of PET
Imaging Studies for Cardiovascular System III: X-Ray
The most common cardiovascular diagnostic test is an X-ray. It produces images of the heart, blood vessels, and adjacent structures.
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
