Measuring Femoral Torsion In Vivo Using Freehand 3-D Ultrasound Imaging
| Autor: | Marcus G. Pandy, Elyse Passmore, Morgan Sangeux, H Kerr Graham |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Adult
Male medicine.medical_specialty Acoustics and Ultrasonics Rotation 0206 medical engineering Biophysics 02 engineering and technology 3 d ultrasound Sensitivity and Specificity 03 medical and health sciences Young Adult 0302 clinical medicine Imaging Three-Dimensional Image Interpretation Computer-Assisted medicine Humans Radiology Nuclear Medicine and imaging Femur Ultrasonography Radiological and Ultrasound Technology medicine.diagnostic_test business.industry Femoral torsion Ultrasound Reproducibility of Results Magnetic resonance imaging Repeatability Middle Aged Image Enhancement 020601 biomedical engineering Magnetic Resonance Imaging Gait analysis Female Tomography Radiology business 030217 neurology & neurosurgery Algorithms Biomedical engineering |
| Zdroj: | Ultrasound in medicinebiology. 42(2) |
| ISSN: | 1879-291X |
| Popis: | Despite variation in bone geometry, muscle and joint function is often investigated using generic musculoskeletal models. Patient-specific bone geometry can be obtained from computerised tomography, which involves ionising radiation, or magnetic resonance imaging (MRI), which is costly and time consuming. Freehand 3-D ultrasound provides an alternative to obtain bony geometry. The purpose of this study was to determine the accuracy and repeatability of 3-D ultrasound in measuring femoral torsion. Measurements of femoral torsion were performed on 10 healthy adults using MRI and 3-D ultrasound. Measurements of femoral torsion from 3-D ultrasound were, on average, smaller than those from MRI (mean difference = 1.8°; 95% confidence interval: -3.9°, 7.5°). MRI and 3-D ultrasound had Bland and Altman repeatability coefficients of 3.1° and 3.7°, respectively. Accurate measurements of femoral torsion were obtained with 3-D ultrasound offering the potential to acquire patient-specific bone geometry for musculoskeletal modelling. Three-dimensional ultrasound is non-invasive and relatively inexpensive and can be integrated into gait analysis. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|