Assessment of concordance between stress fracture measurements using scintigraphy and magnetic resonance imaging

Authors

  • Enrique Rodríguez Reyes
  • Blanca Cristina Estrella López

Keywords:

Stress fractures, fracture detection, scintigraphy, MRI, Cohen's Kappa

Abstract

Introduction: Stress fractures are small fissures or cracks in bones that occur due to repeated forces on a specific area of the bone.

Objective: To evaluate the concordance between stress fracture measurements by scintigraphy and magnetic resonance imaging in patients from Babahoyo, Ecuador.

Methods: The study was observational, cross-sectional, prospective and analytical. The study population consisted of 111 patients from a clinic in Babahoyo, Ecuador. SPSS statistical software (version 27) was used and Cohen's Kappa coefficient was calculated.

Results: High concordance was observed between both diagnostic methods, with a positive concordance percentage of 67.6 % for fracture detection. Scintigraphy tends to have some false positives (4.5 %) compared to MRI as the gold standard. The Kappa coefficient was 0.848, which indicated a very good agreement between both diagnostic methods.

Conclusions: The null hypothesis is not rejected and it is concluded that both diagnostic techniques have a good concordance in this context. This result has positive implications in terms of cost-effectiveness, because given that scintigraphy is less expensive than MRI, the high concordance found suggests that scintigraphy could be used more extensively for the detection of stress fractures in this context, reserving MRI for complex or doubtful cases, although further studies would be required to confirm this possibility of partial substitution.

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Published

2024-04-12

How to Cite

1.
Rodríguez Reyes E, Estrella López BC. Assessment of concordance between stress fracture measurements using scintigraphy and magnetic resonance imaging. Rev Cubana Inv Bioméd [Internet]. 2024 Apr. 12 [cited 2025 Sep. 15];43. Available from: https://revibiomedica.sld.cu/index.php/ibi/article/view/3289