Research
Print page Print page
Switch language
The Capital Region of Denmark - a part of Copenhagen University Hospital
Published

Accuracy of MRI technique in measuring tendon cross-sectional area

Research output: Contribution to journalJournal articleResearchpeer-review

DOI

  1. Mechanisms in fluid retention - Towards a mutual concept

    Research output: Contribution to journalReviewResearchpeer-review

  2. The age-related reduction in cerebral blood flow affects vertebral artery more than internal carotid artery blood flow

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. Myocardial perfusion assessed with cardiac computed tomography in women without coronary heart disease

    Research output: Contribution to journalJournal articleResearchpeer-review

  4. Cardiometabolic effects of antidiabetic drugs in non-alcoholic fatty liver disease

    Research output: Contribution to journalReviewResearchpeer-review

  1. Maintenance of muscle strength following a one-year resistance training program in older adults

    Research output: Contribution to journalJournal articleResearchpeer-review

  2. The influence of prolonged strength training upon muscle and fat in healthy and chronically diseased older adults

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. Associations between shoulder symptoms and concomitant pathology in patients with traumatic supraspinatus tears

    Research output: Contribution to journalJournal articleResearchpeer-review

  4. The effect of 4 months exercise training on systemic biomarkers of cartilage and bone turnover in hip osteoarthritis patients

    Research output: Contribution to journalJournal articleResearchpeer-review

  5. Early development of tendinopathy in humans: Sequence of pathological changes in structure and tissue turnover signaling

    Research output: Contribution to journalJournal articleResearchpeer-review

View graph of relations

Magnetic resonance imaging (MRI) has commonly been applied to determine tendon cross-sectional area (CSA) and length either to measure structural changes or to normalize mechanical measurements to stress and strain. The ability to reproduce CSA measurements on MRI images has been reported, but the accuracy in relation to actual tendon dimensions has never been investigated. The purpose of this study was to compare tendon CSA measured by MRI with that measured in vitro with the mould casting technique. The knee of a horse was MRI-scanned with 1.5 and 3 tesla, and two examiners measured the patellar tendon CSA. Thereafter, the patellar tendon of the horse was completely dissected and embedded in an alginate cast. The CSA of the embedded tendon was measured directly by optical imaging of the cast impression. 1.5 tesla grey tendon CSA and 3 tesla grey tendon CSA were 16.5% and 13.2% lower than the mould tendon CSA, respectively. Also, 3 tesla tendon CSA, based on the red-green border on the National Institute of Health (NIH) colour scale, was lower than the mould tendon CSA by 2.8%. The typical error between examiners was below 2% for all the measured CSA. The typical error between examiners was below 2% for all the measured CSA. These data show that measuring tendon CSA on the grey-scale MRI images is associated with an underestimation, but by optimizing the measurement using a 3 tesla MRI and the appropriate NIH colour scale, this underestimation could be reduced to 2.8% compared with the direct measurements on the mould.

Original languageEnglish
JournalClinical Physiology and Functional Imaging
Volume34
Issue number3
Pages (from-to)237-41
Number of pages5
ISSN1475-0961
DOIs
Publication statusPublished - May 2014

    Research areas

  • Animals, Horses, Magnetic Resonance Imaging, Patellar Ligament, Predictive Value of Tests, Replica Techniques, Reproducibility of Results

ID: 44829321