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- W4313396532 abstract "Early detection and treatment of Osteonecrosis of the Femoral Head (ONFH) are vital in avoiding Total Hip Replacement. Early-stage ONFHs can be diagnosed using Magnetic Resonance Imaging (MRI). However, commonly used intra-operative imaging modalities such as fluoroscopy frequently fail to depict the lesion, increasing the difficulty of intra-operative localisation of osteonecrosis. This work introduces a novel framework that enables the localisation of necrotic lesions in Computed Tomography (CT) as a step toward localising and visualising necrotic lesions in intra-operative images. The proposed framework enables the automatic segmentation of femur, pelvis, and necrotic lesions in MRI. An additional step performs semi-automatic segmentation of these anatomies, excluding the necrotic lesions, in CT. A final step performs pairwise registration of the corresponding anatomies, allowing for the localisation and visualisation of the necrosis in CT. This framework was tested on MRIs and CTs containing early-stage ONFH. Results indicate that the proposed framework can segment the anatomical structures of interest and accurately register the femurs and pelvis to the corresponding volumes, allowing for the visualisation and localisation of the ONFH in CT and generated X-rays. This framework has the potential to enable intra-operative visualisation of necrotic lesions during surgical procedures, such as core decompression." @default.
- W4313396532 created "2023-01-06" @default.
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- W4313396532 date "2022-12-18" @default.
- W4313396532 modified "2023-09-27" @default.
- W4313396532 title "Towards visualising early-stage osteonecrosis using intraoperative imaging modalities" @default.
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- W4313396532 doi "https://doi.org/10.1080/21681163.2022.2157329" @default.
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