A novel ultrasound scanning approach for evaluating femoral cartilage defects of the knee: comparison with routine magnetic resonance imaging

Journal of Orthopaedic Surgery and Research

Bowen Zheng¹  Jie Ren¹  Junyan Cao¹  Yan Lv¹  Dongmei Huang¹  Kun Wang²  Huading Lu²  Xiaochun Meng³ 

[1] Department of Medical Ultrasonics, The Third Affiliated Hospital of Sun Yat-sen University;Department of Orthopedics, The Third Affiliated Hospital of Sun Yat-sen University;Department of Radiology, The Third Affiliated Hospital of Sun Yat-sen University;

关键词: Cartilage disease;    Ultrasound;    Magnetic resonance imaging;    Diagnostic performance;    Arthroscopy;    Sensitivity;   

DOI  :  10.1186/s13018-018-0887-x

来源: DOAJ

【 摘 要 】

Abstract Background This study aimed to assess a novel ultrasound (US) scanning approach in evaluating knee femoral cartilaginous defects, compared with magnetic resonance imaging (MRI, commonly used for knee imaging) and arthroscopy (gold standard). Methods Sixty-four consecutive patients (65 knees) were prospectively evaluated between April 2010 and July 2011. Results The overall sensitivity (62.2 and 69.4%), specificity (92.9 and 90.5%), accuracy (75.4 and 78.5%), and adjusted positive (88.7 and 90.4%) and negative predictive (69.5 and 73.3%) were similar for both radiologists (weighted κ = 0.76). Furthermore, agreement between grading by US and MRI was substantial (weighted κ = 0.61). Conclusions In conclusion, the novel US scanning approach allows similar diagnostic performance compared to routine MRI for knee cartilage defects. US is more accessible, easier to perform, and less expensive than MRI, with potential advantages of easier initial screening and assessment of cartilage defects.

【 授权许可】

Unknown