Value of fat-suppressed proton-density-weighted turbo spin-echo sequences in detecting meniscal lesions: comparison with arthroscopy
| Autor: | P. J. Schäfer, F. K. W. Schäfer, Thomas Jahnke, Christian Frahm, Martin Heller, R. E. Hilgert, Joachim Brossmann |
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| Rok vydání: | 2006 |
| Předmět: |
Adult
Cartilage Articular Male medicine.medical_specialty Adolescent Knee Joint Anterior horn Menisci Tibial Sensitivity and Specificity 030218 nuclear medicine & medical imaging 03 medical and health sciences Arthroscopy 0302 clinical medicine Predictive Value of Tests medicine Humans Radiology Nuclear Medicine and imaging Prospective Studies Proton density Aged Aged 80 and over Observer Variation Radiological and Ultrasound Technology medicine.diagnostic_test business.industry Reproducibility of Results Magnetic resonance imaging General Medicine Fast spin echo Middle Aged Magnetic Resonance Imaging Sagittal plane medicine.anatomical_structure 030220 oncology & carcinogenesis Coronal plane Female Radiology Joint Diseases Protons business Nuclear medicine Meniscal lesions |
| Zdroj: | Acta radiologica (Stockholm, Sweden : 1987). 47(4) |
| ISSN: | 0284-1851 |
| Popis: | Purpose: To evaluate fat-suppressed (FS) proton-density-weighted (PDw) turbo spin-echo (TSE) magnetic resonance imaging (MRI) compared to arthroscopy in the detection of meniscal lesions.Material and Methods: In a prospective study, 31 knee joints were imaged on a 1.5T MR scanner before arthroscopy using the following sequences: (a) coronal and sagittal FS-PDw TSE (TR/TE: 4009/15 ms); (b) coronal T1w SE (TR/TE: 722/20 ms), and sagittal PDw TSE (TR/TE: 3800/15 ms). Other imaging parameters were: slice thickness 3 mm, FOV 160 mm, matrix 256×256. A total of 186 meniscal regions (62 menisci; anterior horn, body, posterior horn) were evaluated. Standard of reference was arthroscopy. Sensitivity, specificity, negative predictive value (npv), positive predictive value (ppv), and accuracy were calculated.Results: Arthroscopically, meniscal lesions were detected in 55/186 segments (35 medial and 20 lateral meniscal lesions). Sensitivity, specificity, npv, ppv, and accuracy for combination of coronal and sagittal FS PDw TSE were 91.4%, 98.3%, 95%, 97%, and 93.5% for the medial meniscus, and 90%, 98.6%, 97.3%, 94.7%, and 96.8% for the lateral. The results were comparable to the combination of coronal T1w SE and sagittal PDw TSE for the medial (88.6%, 98.3%, 93.4%, 96.9%, 91.4%) and the lateral (90%, 95.9%, 97.2%, 85.7%, 92.5%) meniscus.Conclusion: FS PDw TSE-MR sequences are an excellent alternative for the detection of meniscal lesions in comparison with diagnostic arthroscopy. |
| Databáze: | OpenAIRE |
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