ArticleBMC health services research2007
Magnetic resonance imaging of the knee in Norway 2002-2004 (national survey): rapid increase, older patients, large geographic differences.
Article in BMC health services research, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 2 of them syntheses that pooled it.
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Who cites it
20 citing papers in PubMed, 2 syntheses or guidelines pooled it, 45 citations in OpenAlex.
- Prevalence of knee osteoarthritis features on magnetic resonance imaging in asymptomatic uninjured adults: a systematic review and meta-analysis.British journal of sports medicine · 2019Pooled it
- Prevalence of chronic musculoskeletal disorders in elderly Brazilians: a systematic review of the literature.BMC musculoskeletal disorders · 2012Pooled it
- CT sinus imaging utilization in Norway: trends over time and variation by region, age, and sex.Research in health services & regions · 2026Article
- Temporal and geographical variations of chest x-rays: A ten-year register study from Norway.Acta radiologica open · 2025Article
- Temporal and geographical variations in musculoskeletal imaging: a register-based study in Norway with focus on potential low-value imaging.Research in health services & regions · 2025Article
- Geographical variations and potential low-value neuroimaging examinations in Norway from 2013 to 2022.Research in health services & regions · 2025Article
- Temporal and geographical variations in diagnostic imaging in Norway.BMC health services research · 2024Article
- Article
- Reduction in use of MRI and arthroscopy among patients with degenerative knee disease in independent treatment centers versus general hospitals: a time series analysis.International journal for quality in health care : journal of the International Society for Quality in Health Care · 2024Article
- Drivers for low-value imaging: a qualitative study of stakeholders' perspectives in Norway.BMC health services research · 2023Article
- Ethical issues with geographical variations in the provision of health care services.BMC medical ethics · 2022Article
- Reducing low-value radiological services in Norway -a qualitative multi-professional study on measures and facilitators for change.BMC health services research · 2022Article
- Geographical variations in the use of outpatient diagnostic imaging in Norway 2019.Acta radiologica open · 2022Article
- Impact on radiological practice of active guideline implementation of musculoskeletal guideline, as measured over a 12-month period.Acta radiologica open · 2021Article
- Distribution of Bone Contusion Patterns in Acute Noncontact Anterior Cruciate Ligament-Torn Knees.The American journal of sports medicine · 2021Article
- Supplementing gatekeeping with a revenue scheme for secondary care providers.International journal of health economics and management · 2016Article
- Falling up the stairs: the equivalent of 'bashing it with a bible' for an ACL ganglion cyst of the knee.BMJ case reports · 2012Article
- Regional and temporal variations in coding of hospital diagnoses referring to upper gastrointestinal and oesophageal bleeding in Germany.BMC health services research · 2011Article
- What causes increasing and unnecessary use of radiological investigations? A survey of radiologists' perceptions.BMC health services research · 2009Article
- Association of the type of trauma, occurrence of bone bruise, fracture and joint effusion with the injury to the menisci and ligaments in MRI of knee trauma.Muscles, ligaments and tendons journalArticle
Corrections and comments
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Authors and funding
5 authors at 5 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundMagnetic resonance imaging (MRI) of the knee is the second most common MRI examination in Norway after head/brain MRI. Little has been published internationally on trends in the use of knee MRI after 1999. This study aimed to describe levels and trends in ambulant knee MRI utilisation in Norway 2002-2004 in relation to type of radiology service, geographic regions, number of MRI-scanners, patient age and gender, and type of referring health care provider.
methodsWe analysed administrative data on all claims for reimbursement of ambulant knee MRI performed in Norway in 2002, 2003 and 2004 and noted nominal reimbursement. We also recorded the referring health care provider from clinical requests of ambulant knee MRI done consecutively during two months in 2004 at one private institute and three hospitals. Number of MRI-scanners was given by manufacturers and radiology services.
resultsIn Norway, the rate of knee MRI claims for 2004 was 15.6 per 1000 persons. This rate was 74% higher in East than in North region (18.4 vs. 10.6), slightly higher for men than women (16.4 vs. 14.7) and highest for ages 50-59 years (29.0) and 60-69 years (21.2). Most claims (76% for 2004) came from private radiology services. In 2004, the referring health care provider was a general practitioner in 63% of claims (unspecified in 24%) and in 83.5% (394/472) of clinical requests. From 2002 to 2004, the rate of knee MRI claims increased 64%. In the age group 50 years or above the increase was 86%. Rate of MRI-scanners increased 43% to 21 scanners per million persons in 2004. Reimbursement for knee MRI claims (nominal value) increased 80% to 70 million Norwegian kroner in 2004.
conclusionAmbulant knee MRI utilisation in Norway increases rapidly especially for patients over 50, and shows large geographic differences. Evaluation of clinical outcomes of this activity is needed together with clinical guidelines for use of knee MRI.
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