Reporting knee meniscal tears: technical aspects, typical pitfalls and how to avoid them
| Autor: | Gustav Andreisek, Nicolae Bolog |
|---|---|
| Přispěvatelé: | University of Zurich, Bolog, Nicolae V |
| Rok vydání: | 2016 |
| Předmět: |
medicine.medical_specialty
Unnecessary Surgery Meniscal tears 610 Medicine & health Review 030218 nuclear medicine & medical imaging 03 medical and health sciences Magnetic resonance imaging 0302 clinical medicine medicine 2741 Radiology Nuclear Medicine and Imaging Knee Radiology Nuclear Medicine and imaging Neuroradiology 030222 orthopedics medicine.diagnostic_test 10042 Clinic for Diagnostic and Interventional Radiology business.industry Interventional radiology Sagittal plane medicine.anatomical_structure Magnetic fields Coronal plane Menisci Radiology Anatomy business Radiofrequency coil |
| Zdroj: | Insights into Imaging |
| ISSN: | 1869-4101 |
| Popis: | Magnetic resonance imaging (MRI) is the most accurate imaging technique in the diagnosis of meniscal lesions and represents a standard tool in knee evaluation. MRI plays a critical role in influencing the treatment decision and enables information that would obviate unnecessary surgery including diagnostic arthroscopy. An accurate interpretation of the knee depends on several factors, starting with technical aspects including radiofrequency coils, imaging protocol and magnetic field strength. The use of dedicated high-resolution orthopaedic coils with a different number of integrated elements is mandatory in order to ensure high homogeneity of the signal and high-resolution images. The clinical imaging protocol of the knee includes different MRI sequences with high-spatial resolution in all orientations: sagittal, coronal, and axial. Usually, the slice thickness is 3 mm or less, even with standard two-dimensional fast spin echo sequences. A common potential reason for pitfalls and errors of interpretation is the unawareness of the normal tibial attachments and capsular attachment of the menisci. Complete description of meniscal tears implies that the radiologist should be aware of the patterns and the complex classification of the lesions. Teaching points • Technical factors may influence MRI interpretation. • Unawareness of the normal meniscal anatomy may lead to errors of interpretation. • Description of meniscal tears implies the knowledge of meniscal tear classification. |
| Databáze: | OpenAIRE |
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