Three-dimensional (3D) ultrasound has significantly improved prenatal screening and perinatal care in the area of cleft lip/palate and other deformities, providing essential preoperative information to the surgical team. However, current 3D reconstruction modalities are limited primarily to display on a two-dimensional surface. In contrast, a 3D printed haptic model allows both the surgeon and the parents to develop a better understanding of the anatomy and the surgical procedure through the ability to interact directly with the printed model. The production of a 3D printed haptic model of cleft lip and palate obtained from a surface-rendered oropalatal sonographic view is presented here. The development of this 3D printed haptic model will allow the surgical team to perform preoperative planning with a highly accurate medical model, and it therefore represents a new tool in the management of cleft lip/palate. It also provides better prenatal information for the parents.
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http://dx.doi.org/10.1016/j.ijom.2017.06.005 | DOI Listing |
Med Phys
December 2024
ICube Laboratory, University of Strasbourg UMR 7357 CNRS, Strasbourg, France.
Background: Percutaneous image-guided cementoplasty is a medical procedure for strengthening bones structurally altered by disease, such as osteolytic metastasis. This procedure involves injecting biocompatible liquid bone cement, through one or more trocars into the damaged bone. Within a few minutes the bone cement hardens and restores the rigidity of the bony structure.
View Article and Find Full Text PDFACS Appl Mater Interfaces
December 2024
Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States.
Multimaterial 3-D printing (3DP) of isotropic (IsoE) and liquid crystalline elastomers (LCE) yields spatially programmed elements that undergo a cuboidal shape transformation upon heating. The thermomechanical deformation of 3DP elements is determined by the geometry and extent of the isotropic and anisotropic regions. The synthesis and experimental characterization of the 3DP elements are complemented by finite element analysis (FEA).
View Article and Find Full Text PDFFront Surg
November 2024
Department of Neurosurgery, University Hospital Basel, Basel, Switzerland.
Objective: The objective of this study was to develop and evaluate a low-cost 3D-printed simulator to improve the ability of neurosurgical residents to handle and coordinate endoscopes in performing technically demanding procedures such as neuroendoscopic removal of ventricular tumors or endoscopic third ventriculostomy (ETV).
Methods: The simulator was developed, printed in-house, and evaluated in a trial involving neurosurgery residents who performed ETV and intraventricular tumor resection tasks using it. Participants completed a questionnaire that assessed various aspects of the simulator's effectiveness, including anatomical visualization, procedural understanding, competency enhancement, and subjective impressions.
Sensors (Basel)
October 2024
College of Computer Science and Software Engineering, Shenzhen University, Shenzhen 518060, China.
This paper introduces a novel capacitive sensor array designed for tactile perception applications. Utilizing an all-in-one inkjet deposition printing process, the sensor array exhibited exceptional flexibility and accuracy. With a resolution of up to 32.
View Article and Find Full Text PDFSci Rep
October 2024
Graduate Program in Materials Science and Engineering, Federal University of Pará, Ananindeua, PA, Brazil.
Nanocomposites based on carbon nanotubes (CNTs) are suitable for sensors, due to matrix ability to incorporate nanotube properties. Thus, we developed a low-cost, nanostructured poly(acrylonitrile-butadiene-styrene) (ABS) polymer piezoresistive sensor produced by additive manufacturing. For this, solution layers of acetone, dimethylformamide and CNTs functionalized with carboxylic acid were pulverized on an ABS substrate using an aerograph.
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