Korean Journal of Radiology

  • 제16권6호
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  • Pages.1319-1325
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  • 2015
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  • 1229-6929(pISSN)
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  • 2005-8330(eISSN)
대한영상의학회 (The Korean Society of Radiology)
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Associations between Alpha Angle and Herniation Pit on MRI Revisited in 185 Asymptomatic Hip Joints

  • Lee, Eunchae (Department of Radiology, Seoul National University Bundang Hospital) ;
  • Choi, Jung-Ah (Department of Radiology, Seoul National University Bundang Hospital)
  • 투고 : 2015.05.11
  • 심사 : 2015.08.17
  • 발행 : 2015.11.01
⟨ 이전 논문 다음 논문 ⟩

초록

Objective: To evaluate the association between alpha angle and herniation pit on MRI in asymptomatic hip joints and their associations with demographic variables. Materials and Methods: Hip MRI of 185 asymptomatic hip joints of 105 adults (age 18 to 80 years) from September 2011 through December 2012 were retrospectively studied. Alpha angles were measured on oblique axial MR images by 2 observers. Herniation pit was determined by 1 observer. Size measures, prevalence, and statistical analyses were conducted regarding its association with age, gender, laterality (right or left hip). Intra- and inter-observer agreements were determined by intra-class correlation coefficient. Results: The prevalence of herniation pit in asymptomatic hips was 21.6%. The range of alpha angle was 27.6-65.0 degrees. Seventeen and 16 out of 185 (9.1% and 8.6%) hip joints showed alpha angle of ${\geq}55$ degrees in first and second measurement sessions, respectively. There was no association between alpha angle ${\geq}55$ and presence of herniation pit. There was no association between alpha angle ${\geq}55$ and the size of herniation pit. Inter-observer agreement of alpha angle was 0.485 between first measurements of first vs. second observer, respectively. Intra-observer agreement of alpha angle was 0.654, respectively. Forty (21.6%) of 185 hip joints (35 of 105 patients, 33.3%) had herniation pit, with no difference according to age, gender, or laterality of hip joint. Conclusion: There is no association between alpha angle ${\geq}55$ degrees and presence of herniation pit or demographic variables.

키워드

과제정보

연구 과제 주관 기관 : National Research Foundation of Korea (NRF)

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피인용 문헌

  1. Selection and Reporting of Statistical Methods to Assess Reliability of a Diagnostic Test: Conformity to Recommended Methods in a Peer-Reviewed Journal vol.18, pp.6, 2017, https://doi.org/10.3348/kjr.2017.18.6.888
  2. Correlation between the presence of herniation pit and femoroacetabular impingement: a systematic review and meta-analysis vol.28, pp.10, 2015, https://doi.org/10.1007/s00167-020-05888-8