A novel method of anatomical landmark selection for rib cage 3D reconstruction from biplanar radiography
TypeArticles dans des revues avec comité de lecture
Methods to reconstruct anatomical structures in 3D are gaining interest in medicine because they give access to quantitative information on the patient’s geometry. However, these methods are user-dependent and require a trained operator, which is time consuming and a source of error and unreliability. The aim of this work was to validate a novel method of landmark selection to perform the 3D reconstruction of the rib cage from biplanar calibrated radiographies. The method uses digital painting for digitization of anatomical landmarks (eight ribs midlines, posterior extrema, sternum) to build a first estimate of the 3D ribcage geometry. Twenty scoliotic patients were included (Cobb angle: 43° ± 11°) and their ribcage was reconstructed twice with the proposed method by four trained operators. Measurement reproducibility was similar to previously validated methods. Uncertainty (95% CI) was 2.3° for the rib hump measurement, 9.7 mm and 3.8 mm for maximal antero-posterior and lateral diameter, 395 cm3 for ribcage volume. The method was qualitatively considered more user-friendly than previous versions, although it still requires a trained operator, and it took approximately 2 minutes of manual digitization. The new method should facilitate diffusion of 3D quantitative analysis of ribcage in clinical routine.
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3D reconstruction of ribcage geometry from biplanar radiographs using a statistical parametric model approach AUBERT, Benjamin; VERGARI, Claudio; ILHARREBORDE, Brice; COURVOISIER, A; SKALLI, Wafa (Taylor & Francis, 2014)Rib cage 3D reconstruction is an important prerequisite for thoracic spine modelling, particularly for studies of the deformed thorax in adolescent idiopathic scoliosis. This study proposes a new method for rib cage 3D ...
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Coronal trunk imbalance in idiopathic scoliosis: Does gravity line localisation confirm the physical findings? HERNANDEZ, Thibault; THENARD, Thomas; VERGARI, Claudio; ROBICHON, Leopold; SKALLI, Wafa (Elsevier BV, 2018)Background: Adolescent idiopathic scoliosis (AIS) can require surgical procedures that have major consequences. Coronal imbalance as assessed clinically using a plumb line is a key criterion for selecting patients to ...
SKALLI, Wafa; VERGARI, Claudio; EBERMEYER, Eric; COURTOIS, Isabelle; DREVELLE, Xavier; ABELIN-GENEVOIS, Kariman; KOHLER, Remi; DUBOUSSET, Jean (2017)Study Design. Early detection of progressive adolescent idiopathic scoliosis (AIS) was assessed based on 3D quantification of the deformity. Objective. Based on 3D quantitative description of scoliosis curves, the aim is ...