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Your search keyword '"E H, Masmejean"' showing total 3 results
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3 results on '"E H, Masmejean"'

1. Three-dimensional reconstruction of the upper limb from anatomical slices of the Korean visible human: simulation and educational application

Author

Vincent Delmas, R. Dukan, Maxime Chahim, E. H. Masmejean, and Jean-François Uhl

Subjects
medicine.medical_specialty, Dissection table, business.industry, Interface (computing), 3D reconstruction, Human body, Virtual reality, Pathology and Forensic Medicine, Dissection, medicine.anatomical_structure, medicine, Upper limb, Radiology, Nuclear Medicine and imaging, Surgery, Medical physics, Anatomy, Duration (project management), business
Abstract

Digital anatomy is a novel emerging discipline. Use of virtual reality brings a revolution in educational anatomy by improving retention and learning outcomes. Indeed, virtual dissection is a new learning tool for students and surgeons. Three-dimensional vectorial models of the human body can be created from anatomical slices obtained by lengthy series of cryosection from the visible human projects. The aim of this paper is to show how these mesh models could be embedded into an Acrobat® 3dpdf interface, to produce an easy-to-use fully interactive educational tool. The learning of this method and its practical application were evaluated on a multicentric cohort of 86 people divided into 3 groups, according to the duration of their training (1, 2 or 3 days, respectively). Participants learned how to use the Mesh tool and how to model 3D structures from anatomical sections. At the end of the training, they were given a survey form. Participants were also asked to rate the training (Poor; Average; Good; Very Good; Excellent). Ninety four percent of the subjects rated the device as excellent and would continue to use digital anatomy in their practice. This result is the Diva3d® virtual dissection table, a powerful educational tool for anatomists and students. It could also be the basis of future simulation tools for hand surgeons training.

Published
2021
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2. Three-dimensional reconstruction of the upper limb from anatomical slices of the Korean visible human: simulation and educational application

Author

R, Dukan, J-F, Uhl, V, Delmas, M, Chahim, and E H, Masmejean

Subjects
Adult, Male, Students, Medical, Adolescent, Dissection, Visible Human Projects, Cohort Studies, Upper Extremity, User-Computer Interface, Young Adult, Imaging, Three-Dimensional, Republic of Korea, Humans, Female, Anatomy, Simulation Training, Computer-Assisted Instruction, Education, Medical, Undergraduate
Abstract

Digital anatomy is a novel emerging discipline. Use of virtual reality brings a revolution in educational anatomy by improving retention and learning outcomes. Indeed, virtual dissection is a new learning tool for students and surgeons. Three-dimensional vectorial models of the human body can be created from anatomical slices obtained by lengthy series of cryosection from the visible human projects. The aim of this paper is to show how these mesh models could be embedded into an AcrobatThe learning of this method and its practical application were evaluated on a multicentric cohort of 86 people divided into 3 groups, according to the duration of their training (1, 2 or 3 days, respectively). Participants learned how to use the Mesh tool and how to model 3D structures from anatomical sections. At the end of the training, they were given a survey form. Participants were also asked to rate the training (Poor; Average; Good; Very Good; Excellent).Ninety four percent of the subjects rated the device as excellent and would continue to use digital anatomy in their practice.This result is the Diva3d

Published
2020

3. Clinical results after surgical resection of benign solitary schwannomas: A review of 150 cases.

Author

El Sayed L, H Masmejean E, Lavollé A, Biau D, and Peyre M

Subjects
Humans, Median Nerve, Multicenter Studies as Topic, Neurosurgical Procedures methods, Postoperative Period, Retrospective Studies, Nervous System Diseases, Neurilemmoma diagnostic imaging, Neurilemmoma surgery
Abstract

Introduction: Peripheral nerve schwannomas are the most common nerve tumors. While they are efficiently treated with surgery, the risk of neurological complications, especially sensory deficits, remains debated., Hypothesis: We postulate that rates of post-operative sensory deficits in peripheral schwannoma surgery are low and are not increased in schwannomas of the hand, in which preservation of discriminative tact is of prime functional importance., Materials and Methods: A retrospective multicenter study was carried out on 150 patients with an isolated peripheral schwannoma operated between 2002 and 2018, including 11 patients with schwannomas of the hand. All cases were reviewed preoperatively and postoperatively with a detailed exam of the neurological status., Results: Most schwannomas were located in the lower limbs (58%). The two main affected trunks were the posterior tibial nerve in the lower limb and the median nerve in the upper limb. The average preoperative tumor volume measured on MRI was 2.93 cm 3 [0.11 cm 3 -25 cm 3 ]. The most common preoperative symptoms were paresthesia (77.1%) and pseudo-Tinel sign (55.7%). Less frequently, pain (50.3%) and hypoesthesia (18.1%) were observed. On the other hand, preoperative neurological motor manifestations remained exceptional (3.3%). The rates of new post-operative motor deficits, paresthesias, and sensory deficits were 4.6%, 10.9% and 8% respectively and were not increased in schwannomas of the collateral nerves of the hand., Conclusion: Surgical resection is a safe procedure for peripheral nerve schwannoma treatment with satisfying functional results and an acceptable risk of nerve injury, especially for sensory function., Level of Proof: D; Multicenter retrospective study., (Copyright © 2022 Elsevier Masson SAS. All rights reserved.)

Published
2022
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