Evaluation of a Bone Coordinate System Constructed Using MR Image Composing
| Autor: | Tatsuya, Kondo, Yuta, Yagi, Hiroaki, Saito, Tsutomu, Kanazawa, Yutaro, Saito |
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| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Japanese Journal of Radiological Technology. 78:593-598 |
| ISSN: | 1881-4883 0369-4305 |
| Popis: | To evaluate the accuracy of a bone coordinate system constructed using MR image composing.A femoral coordinate system constructed using image composing of MR images of a whole bovine femur was evaluated using CT images. The MR images were acquired by moving the table and were processed with 3D distortion correction and composing. To evaluate the reproducibility of the measurements, the same operator repeated the construction of the femoral coordinate system. In addition, distortions in the MR images were evaluated in comparison with those in the CT images.The center position of the femoral coordinate system constructed using the MR image composing was 1.6±0.9 mm on the X-axis, 1.5±0.8 mm on the Y-axis, and 0.2±0.3 mm on the Z-axis, and the rotation of each axis was 1° or less. The distortion of the composed MR image was about 0.3%.The femoral coordinate system constructed using MR image composing had the same accuracy as a system constructed with CT images. The effect of MR image composing on the construction of the femoral coordinate system was small. |
| Databáze: | OpenAIRE |
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