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

Jan Porthun

8PUBLICATIONS

12CO-AUTHORS

Diagnostic radiographyDisease surveillanceStochastic analysis and modellingEmergency medicineLegal ethics

Featured researcher

Get your video featured.

Publish with JoVE

Featured researcher

Get your video featured.

Publish with JoVE

Publications (8)

Sort by Publication Date:

|Mar 09, 2026

Referral quality and justification rate in MRI for the lower back: evaluation of an intervention to reduce imaging og low value.

Elin Kjelle, Ingrid Øfsti Brandsæter, Jan Porthun

|Dec 08, 2025

Temporal and geographical variations of chest x-rays: A ten-year register study from Norway.

Bjørn Hofmann, Ingrid Øfsti Brandsæter, Jan Porthun

|Dec 05, 2025

Comparison of multivariable methods for determining cutpoints of biomarkers in the context of survival time analyses: A simulation study with practical applications to survival data.

Jan Porthun, Andreas Wienke

|Jan 24, 2025

Quality of referrals and adherence to guidelines for adult patients with minimal to moderate head injuries in a selection of Norwegian hospitals.

Elin Kjelle, Ingrid Øfsti Brandsæter, Peter Mæhre Lauritzen

|Jan 17, 2024

Characteristics, Opportunities, and Challenges of Osteopathy Based on the Perceptions of Osteopaths in Austria: Qualitative Interview Study.

Jonas Manschel, Jan Porthun, Ulrike Winkler

|Jun 02, 2021

Spontaneous Non-Sustained Ventricular Tachycardia and Premature Ventricular Contractions and Their Prognostic Relevance in Patients with Cancer in Routine Care.

Annemarie Albrecht, Jan Porthun, Jan Eucker

Pageof 2

Frequent Collaborators

3 joint publications

Elin Kjelle

3 joint publications

Ingrid Øfsti Brandsæter

3 joint publications

Bjørn Morten Hofmann

2 joint publications

Jonas Manschel

1 joint publications

Mahir Karakas

1 joint publications

Ulrich Keller

1 joint publications

Ulrike Winkler

1 joint publications

Jean Marie A T Beuckels

1 joint publications

David Martin

1 joint publications

Peter Mæhre Lauritzen

Frequent Collaborators

3 joint publications

Elin Kjelle

3 joint publications

Ingrid Øfsti Brandsæter

3 joint publications

Bjørn Morten Hofmann

2 joint publications

Jonas Manschel

Top Related Videos

Quantitative [<sup>18</sup>F]-Naf-PET-MRI Analysis for the Evaluation of Dynamic Bone Turnover in a Patient with Facetogenic Low Back Pain

Quantitative [<sup>18</sup>F]-Naf-PET-MRI Analysis for the Evaluation of Dynamic Bone Turnover in a Patient with Facetogenic Low Back Pain

Published on : Aug 08, 2019

Multi-modal Pulmonary Imaging: Using Complementary Information from CT and Hyperpolarized <sup>129</sup>Xe MRI to Evaluate Lung Structure-Function

Multi-modal Pulmonary Imaging: Using Complementary Information from CT and Hyperpolarized <sup>129</sup>Xe MRI to Evaluate Lung Structure-Function

Published on : Apr 12, 2024

Establishing a Competing Risk Regression Nomogram Model for Survival Data

Establishing a Competing Risk Regression Nomogram Model for Survival Data

Published on : Oct 23, 2020

See more related videos

Top Related Videos

Quantitative [<sup>18</sup>F]-Naf-PET-MRI Analysis for the Evaluation of Dynamic Bone Turnover in a Patient with Facetogenic Low Back Pain

Quantitative [<sup>18</sup>F]-Naf-PET-MRI Analysis for the Evaluation of Dynamic Bone Turnover in a Patient with Facetogenic Low Back Pain

Published on : Aug 08, 2019

Multi-modal Pulmonary Imaging: Using Complementary Information from CT and Hyperpolarized <sup>129</sup>Xe MRI to Evaluate Lung Structure-Function

Multi-modal Pulmonary Imaging: Using Complementary Information from CT and Hyperpolarized <sup>129</sup>Xe MRI to Evaluate Lung Structure-Function

Published on : Apr 12, 2024

Establishing a Competing Risk Regression Nomogram Model for Survival Data

Establishing a Competing Risk Regression Nomogram Model for Survival Data

Published on : Oct 23, 2020

See more related videos