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

Radiological Investigation II: MRI and Ventilation Perfusion Scan01:30

Radiological Investigation II: MRI and Ventilation Perfusion Scan

154
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...
154
Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

29
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...
29
Radiological Investigation I: X-ray and CT01:30

Radiological Investigation I: X-ray and CT

295
Radiological investigations, including X-rays and computed tomography (CT) scans, are critical for diagnosing and evaluating various medical conditions. These imaging techniques provide valuable insights into the body's internal structures, aiding in the detection of abnormalities, assessment of disease progression, and development of treatment strategies. This article delves into two primary radiological investigations, chest X-rays and CT scans, outlining their purpose, procedures, and...
295
Imaging Studies II: Positron Emission Tomography and Scintigraphy01:25

Imaging Studies II: Positron Emission Tomography and Scintigraphy

161
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
161
Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

295
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...
295
Imaging Studies IV: Magnetic Resonance Imaging01:27

Imaging Studies IV: Magnetic Resonance Imaging

31
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,...
31

You might also read

Related Articles

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

Sort by
Same author

Within-individual variation of spirometry measurements in primary care: a retrospective cohort study.

BMJ open respiratory research·2026
Same author

Improving primary healthcare for non-communicable diseases during annual flooding in Bihar, India: study protocol for a hybrid implementation-effectiveness parallel cluster randomised controlled trial.

Trials·2026
Same author

Peer support intervention (ABA-feed) to improve breastfeeding: UK based, multicentre, parallel group, randomised controlled trial.

BMJ (Clinical research ed.)·2026
Same author

How school phone policies influence adolescent phone use and wellbeing (SMART Schools): a qualitative comparative case study.

Social science & medicine (1982)·2026
Same author

Identifying the best diagnostic test for ovarian cancer - synopsis of Refining Ovarian Cancer Test accuracy Scores (ROCkeTS) research.

Health technology assessment (Winchester, England)·2026
Same author

The distribution of school-aged adolescents' free sugar intake across the day: A cross-sectional study.

European journal of clinical nutrition·2026
Same journal

Machine learning models using 18F-FDG PET/CT radiomics for RAS mutation prediction and prognostic stratification in colorectal cancer.

The British journal of radiology·2026
Same journal

Predictors of Relapse in Oligometastatic Prostate Patients Receiving Stereotactic Ablative Radiotherapy.

The British journal of radiology·2026
Same journal

An Evaluation of Radiotherapy and Response in the Management of Perivascular Epithelioid Cell Tumors.

The British journal of radiology·2026
Same journal

Ensuring radiology reporting quality across a national lung cancer screening programme.

The British journal of radiology·2026
Same journal

Utility of High-Resolution Semiconductor Positron Emission Tomography/Computed Tomography in the Assessment of Breast Cancer Extent: Comparison with Magnetic Resonance Imaging.

The British journal of radiology·2026
Same journal

Airway Imaging Practices in Primary Ciliary Dyskinesia: A Global Survey to Guide Standardized Guidelines.

The British journal of radiology·2026
See all related articles

Related Experiment Video

Updated: Jul 24, 2025

A Multicenter MRI Protocol for the Evaluation and Quantification of Deep Vein Thrombosis
10:26

A Multicenter MRI Protocol for the Evaluation and Quantification of Deep Vein Thrombosis

Published on: June 2, 2015

17.3K

Interobserver variability studies in diagnostic imaging: a methodological systematic review.

Laura Quinn1,2, Konstantinos Tryposkiadis1,2, Jon Deeks1,2

  • 1Test Evaluation Research Group, Institute of Applied Health Research, University of Birmingham, Birmingham, United Kingdom.

The British Journal of Radiology
|July 3, 2023
PubMed
Summary
This summary is machine-generated.

Interobserver variability studies often lack justified sample sizes and their conclusions may not align with reported statistical measures like intraclass correlation coefficients (ICC) or Kappa (κ). Many studies using static images had limitations in bias assessment.

More Related Videos

Guidelines and Experience Using Imaging Biomarker Explorer IBEX for Radiomics
10:17

Guidelines and Experience Using Imaging Biomarker Explorer IBEX for Radiomics

Published on: January 8, 2018

13.3K
Author Spotlight: An Efficient and Robust Software for Automated Fusion of Multiple Preclinical Imaging Modalities
07:13

Author Spotlight: An Efficient and Robust Software for Automated Fusion of Multiple Preclinical Imaging Modalities

Published on: October 27, 2023

1.2K

Related Experiment Videos

Last Updated: Jul 24, 2025

A Multicenter MRI Protocol for the Evaluation and Quantification of Deep Vein Thrombosis
10:26

A Multicenter MRI Protocol for the Evaluation and Quantification of Deep Vein Thrombosis

Published on: June 2, 2015

17.3K
Guidelines and Experience Using Imaging Biomarker Explorer IBEX for Radiomics
10:17

Guidelines and Experience Using Imaging Biomarker Explorer IBEX for Radiomics

Published on: January 8, 2018

13.3K
Author Spotlight: An Efficient and Robust Software for Automated Fusion of Multiple Preclinical Imaging Modalities
07:13

Author Spotlight: An Efficient and Robust Software for Automated Fusion of Multiple Preclinical Imaging Modalities

Published on: October 27, 2023

1.2K

Area of Science:

  • Medical Imaging
  • Research Methodology
  • Statistical Analysis

Background:

  • Interobserver variability is crucial for assessing the reliability of diagnostic tests.
  • Current practices in conducting and reporting these studies require critical evaluation.
  • Understanding methodological limitations is key to improving study quality.

Purpose of the Study:

  • To review the methodology of interobserver variability studies.
  • To assess current practices and the quality of conducting and reporting these studies.
  • To identify areas for improvement in study design and analysis.

Main Methods:

  • A systematic review of interobserver variability studies published between January 2019 and January 2020.
  • Data extraction included study characteristics, populations, variability measures, and results.
  • Risk of bias was assessed using the COSMIN tool for reliability and measurement error.

Main Results:

  • Seventy-nine studies were included, with a median of 47 patients and 4 observers.
  • Sample sizes were often small and lacked justification in most studies.
  • Intraclass correlation coefficients (ICC) and Kappa (κ) statistics were common, but conclusions sometimes contradicted results.
  • Many studies using static images received adequate ratings but had inapplicable bias assessment standards.

Conclusions:

  • Interobserver variability studies exhibit diverse designs and methods needing further evaluation.
  • Small, unjustified sample sizes and discrepancies between statistical results and study conclusions are prevalent.
  • Methodological limitations, particularly with static images, impact the assessment of reliability and measurement error.