A reduced micro-dose protocol for 3D reconstruction of the spine in children with scoliosis: results of a phantom-based and clinically validated study using stereo-radiography
Article dans une revue avec comité de lecture
Purpose The aim of this study was to validate the reproducibility of 3D reconstructions of the spine using a new reduced micro-dose protocol. Methods First, semi-quantitative image analysis was performed using an anthropomorphic child phantom undergoing low-dose biplanar radiography. This analysis was used to establish a “lowest dose” allowing for acceptable visibility of spinal landmarks. Subsequently a group of 18 scoliotic children, 12 years of age or younger, underwent full-spine biplanar radiography with both micro-dose and the newly-defined reduced micro-dose. An intra- and inter-observer reliability study of 3D reconstructions of the spine was performed according to the International Organization for Standardization (ISO)-5725 standard, with three operators. Results The reduced micro-dose setting corresponded to a theoretical reduction of radiation dose exposure of approximately 58%. In vivo results showed acceptable intra- and inter-observer reliability (for instance 3.8° uncertainty on Cobb angle), comparable to previous studies on 3D spine reconstruction reliability and reproducibility based on stereo-radiography. Conclusion A new reduced micro-dose protocol offered reliable 3D reconstructions of the spine in patients with mild scoliosis. However, the quality of 3D reconstructions from both reduced micro-dose and micro-dose was inferior to standard-dose protocol on most parameters. Standard–dose protocol remains the option of choice for most accurate assessment and 3D reconstruction of the spine. Still, this new protocol offers a preliminary screening option and a follow-up tool for children with mild scoliosis yielding extremely low radiation and could replace micro-dose protocol for these patients.
Showing items related by title, author, creator and subject.
Microstructural characterization of annulus fibrosus by ultrasonography: a feasibility study with an in vivo and in vitro approach Article dans une revue avec comité de lectureLANGLAIS, Tristan; DESPRAIRIES, Pierre; PIETTON, Raphaël; ROHAN, Pierre-Yves; DUBOUSSET, Jean; MEAKIN, Judith R.; WINLOVE, Peter C.; VIALLE, Raphaël; SKALLI, Wafa; VERGARI, Claudio (Springer Verlag, 2019)The main function of the intervertebral disc is biomechanical function, since it must resist repetitive high loadings, while giving the spine its flexibility and protecting the spinal cord from over-straining. It partially ...
Article dans une revue avec comité de lectureLANGLAIS, Tristan; VERGARI, Claudio; PIETTON, Raphaël; DUBOUSSET, Jean; SKALLI, Wafa; VIALLE, Raphaël (Elsevier, 2018)Objectives In vitro studies showed that annulus fibrosus lose its integrity in idiopathic scoliosis. Shear wave ultrasound elastography can be used for noninvasive measurement of shear wave speed (SWS) in vivo in the annulus ...
Rib Cage Measurement Reproducibility Using Biplanar Stereoradiographic 3D Reconstructions in Adolescent Idiopathic Scoliosis Article dans une revue avec comité de lecturePIETTON, Raphael; BOULOUSSA, Houssam; VERGARI, Claudio; SKALLI, Wafa; VIALLE, Raphaël (Lippincott, Williams & WilkinsWolters kluwer, 2020)Study design: A reproducibility study of preoperative rib cage 3D measurements was conducted for patients with Adolescent Idiopathic Scoliosis (AIS). Objective: to assess the reliability of rib cage 3D reconstructions using ...
Biomechanical Evaluation of Intercostal Muscles in Healthy Children and Adolescent Idiopathic Scoliosis: A Preliminary Study Article dans une revue avec comité de lecturePIETTON, Raphaël; DAVID, Mercedes; HISAUND, Alisa; LANGLAIS, Tristan; SKALLI, Wafa; VIALLE, Raphaël; VERGARI, Claudio (Elsevier, 2021)Spine deformity during adolescent idiopathic scoliosis can induce a rib-cage deformity. This bone deformity can have direct consequences on the chest-wall muscles, including intercostal muscles, leading to respiratory ...
Shear wave elastography of lumbar annulus fibrosus in adolescent idiopathic scoliosis before and after surgical intervention Article dans une revue avec comité de lectureVERGARI, Claudio; CHANTEUX, Lucas; PIETTON, Raphaël; LANGLAIS, Tristan; VIALLE, Raphaël; SKALLI, Wafa (Elsevier, 2020)Abstract Objectives To determine lumbar intervertebral disc properties with shear wave elastography in adolescent idiopathic scoliotic (AIS) patients before and after surgery, and compare them with asymptomatic controls. ...