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...

Imaging Studies for Cardiovascular System IV: CMRI

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,...

Imaging Studies IV: Magnetic Resonance Imaging

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,...

Radiological Investigation II: MRI and Ventilation Perfusion Scan

Radiological Investigation II: MRI and Ventilation Perfusion Scan

Description
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...

You might also read

Related Articles

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

Sort by

Same author

Optimizing Workflow in Combined Petrosectomy Approaches: Surgical Technique and Case Series.

World neurosurgery·2023

Same author

A Systematic Review of Closure Techniques in Lateral Skull Base Tumor Surgery.

Journal of neurological surgery. Part B, Skull base·2021

Same author

Pneumatization Patterns of the Petrous Apex and Lateral Sphenoid Recess.

Journal of neurological surgery. Part B, Skull base·2017

Same author

Spontaneous Otorrhagia after Laparoscopic Pelvic Surgery: A Report of Two Cases.

The journal of international advanced otology·2017

Same author

Middle ear barotrauma causing transient facial nerve paralysis after scuba diving.

Diving and hyperbaric medicine·2016

Same author

Denervation of the Eustachian Tube and Hearing Loss Following Trigeminal Schwannoma Resection.

Journal of neurological surgery reports·2016

Search research articles

Related Experiment Video

Updated: Jun 30, 2026

Protocol for the Evaluation of MRI Artifacts Caused by Metal Implants to Assess the Suitability of Implants and the Vulnerability of Pulse Sequences

Protocol for the Evaluation of MRI Artifacts Caused by Metal Implants to Assess the Suitability of Implants and the Vulnerability of Pulse Sequences

Published on: May 17, 2018

Mastoiditis on MRI: fact or artifact?

James R Meredith¹, K Paul Boyev

¹Division of Otology/Neurotology, Department of Otolaryngology-Head and Neck Surgery, University of South Florida College of Medicine, Tampa, FL 33612, USA.

Ear, Nose, & Throat Journal

|September 19, 2008

Summary

This summary is machine-generated.

Incidental fluid signal on MRI is often misdiagnosed as mastoiditis. This study found no mastoiditis in patients with this finding, suggesting MRI is not an effective screening tool and alternative terminology is needed.

More Related Videos

Reliable Acquisition of Electroencephalography Data during Simultaneous Electroencephalography and Functional MRI

Reliable Acquisition of Electroencephalography Data during Simultaneous Electroencephalography and Functional MRI

Published on: March 19, 2021

Magnetic Resonance Imaging of Multiple Sclerosis at 7.0 Tesla

Magnetic Resonance Imaging of Multiple Sclerosis at 7.0 Tesla

Published on: February 19, 2021

Related Experiment Videos

Last Updated: Jun 30, 2026

Protocol for the Evaluation of MRI Artifacts Caused by Metal Implants to Assess the Suitability of Implants and the Vulnerability of Pulse Sequences

Protocol for the Evaluation of MRI Artifacts Caused by Metal Implants to Assess the Suitability of Implants and the Vulnerability of Pulse Sequences

Published on: May 17, 2018

Reliable Acquisition of Electroencephalography Data during Simultaneous Electroencephalography and Functional MRI

Reliable Acquisition of Electroencephalography Data during Simultaneous Electroencephalography and Functional MRI

Published on: March 19, 2021

Magnetic Resonance Imaging of Multiple Sclerosis at 7.0 Tesla

Magnetic Resonance Imaging of Multiple Sclerosis at 7.0 Tesla

Published on: February 19, 2021

Area of Science:

Radiology
Otolaryngology
Medical Imaging

Background:

Fluid signal in the mastoid on T2-weighted MRI is a common incidental finding.
Radiologists frequently misinterpret this finding as mastoiditis.
This misdiagnosis can lead to unnecessary patient anxiety and further investigations.

Purpose of the Study:

To evaluate the clinical significance of incidental mastoid fluid signal on MRI.
To determine the prevalence of actual mastoiditis in patients with this MRI finding.
To assess the utility of MRI as a screening tool for mastoiditis.

Main Methods:

Retrospective review of 28 consecutive cases with incidental mastoid fluid signal on MRI.
Correlation of imaging findings with clinical otologic symptoms and signs.
Literature review of current diagnostic criteria for mastoiditis.

Main Results:

A very low prevalence of otologic symptoms or pathology was observed.
None of the reviewed cases were diagnosed with actual mastoiditis.
MRI was found to be an ineffective screening modality for mastoiditis.

Conclusions:

Incidental mastoid fluid signal on MRI rarely represents clinical mastoiditis.
Current diagnostic criteria for mastoiditis may need refinement.
Alternative, less alarming terminology should be considered for incidental findings.