Publications by authors named "A Bellier"
Automated blood vessel segmentation is critical for biomedical image analysis, as vessel morphology changes are associated with numerous pathologies. Still, precise segmentation is difficult due to the complexity of vascular structures, anatomical variations across patients, the scarcity of annotated public datasets, and the quality of images. Our goal is to provide a foundation on the topic and identify a robust baseline model for application to vascular segmentation using a new imaging modality, Hierarchical Phase-Contrast Tomography (HiP-CT).
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- - The study focused on the terrible triad of the elbow (TTE), which involves complex injuries including dislocation and fractures of the radial head and coronoid process, and aimed to develop a reliable anatomical model for TTE.
- - Researchers conducted tests on 10 human elbow specimens, analyzing breaking forces of key ligaments and bones under different compression speeds to understand their behavior before dislocation.
- - The findings confirmed that the rapid compression method effectively replicated various TTE types and provided quantifiable data on breaking forces, leading to the successful validation of an anatomical model for future studies.
Efficient algorithms are needed to segment vasculature in new three-dimensional (3D) medical imaging datasets at scale for a wide range of research and clinical applications. Manual segmentation of vessels in images is time-consuming and expensive. Computational approaches are more scalable but have limitations in accuracy.
View Article and Find Full Text PDFPurpose: To date, no non-invasive imaging modality has been employed to profile the structural intricacies of the hippocampal arterial microvasculature in humans. We hypothesised that synchrotron-based imaging of the human hippocampus would enable precise characterisation of the arterial microvasculature.
Methods: Two preserved human brains from, a 69-year-old female and a 63-year-old male body donors were imaged using hierarchical phase-contrast tomography (HiP-CT) with synchrotron radiation at multiple voxel resolutions from 25.
Purpose: With the promising results of immunotherapy in patients with stage III melanoma, the role of adjuvant radiotherapy after resection and complete lymph-node dissection must be reassessed. We evaluate the outcomes and safety of adjuvant radiotherapy and immunotherapy compared to immunotherapy only in patients with resected stage III melanoma.
Patients And Methods: This retrospective and single institution study included patients treated for a stage III melanoma with complete lymph-node dissection and adjuvant immunotherapy from January 2019 to December 2022.