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Navigation, Spatial clinical trials

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NCT ID: NCT05776706 Recruiting - Brain Neoplasms Clinical Trials

Clinical Trial for the Validation of AR Based Neuronavigation System

Start date: June 1, 2023
Phase: N/A
Study type: Interventional

The goal of this clinical trial is to test augmented reality (AR) based neuronavigation system in surgeries for patients of brain neoplasm or cerebral vascular disease. The main questions it aims to answer are: • AR based neuronavigation system can achieve accuracy that is not inferior to conventional intraoperative navigation system. Participants will participate the study after informed consent. When participants undergo surgery for their brain tumor, we will set up 2 types of neuronavigation, conventional navigation system and developed AR based neuronavigation system. Surgeon will plan and conduct surgery based on only conventional navigation system, but 3D errors at several selected points between two types of navigation will be measured and analyzed.

NCT ID: NCT04611490 Recruiting - Safety Issues Clinical Trials

Preoperative and Peroperative Comparison Between 3D Spine Reconstructions

Spine-PDCA-OR
Start date: July 30, 2020
Phase:
Study type: Observational

The objective is to collect data from a per-operative navigation system called SURGIVISIO during scoliosis surgeries. A research program is in progress in order super-impose pre-operative 3D reconstructions of the spine performed with the EOS system on the per-operative 3D reconstructions performed with the SURGIVISIO system. The purpose of the study is to collect the pre and per operatives data in order to perform the research and development program.

NCT ID: NCT04106453 Completed - Surgery Clinical Trials

Navigated Laparoscopic Microwave Ablation of Tumor Mimics in Pig Liver - an Ex-vivo Trial

Start date: September 14, 2019
Phase: N/A
Study type: Interventional

In primary and secondary liver tumors microwave ablation could be an alternative to surgical resection.It could be performed laparoscopically. Under ultrasound control the microwave device is placed in the tumor.Therefore spatial orientation is challenging: the tumor is often missed and the failure rate is high. During learning curve this could lead to incomplete tumor ablation and high rate of local recurrence. Targeting systems could optimize that. The CasOne-SPOT-system is an innovative electromagnetic tracking and navigation system for laparoscopic microwave ablation. In this study targeting precision using the SPOT-System should be compared to conventional laparoscopic ultrasound-guided microwave ablation. Therefore tumor mimics (1-2cm) will be created in ex-vivo pig livers and microwave ablation will be performed ultrasound guided or ultrasound navigated. The ablation procedures will be performed by two novices and two experienced surgeons. Aim of this trial is to is to evaluate, if laparoscopic microwave ablation could be facilitated by the use of the SPOT-navigation system.

NCT ID: NCT04074655 Completed - Dementia Clinical Trials

Investigating the Effect of Training With a Virtual Reality Driving Simulator

Start date: September 10, 2019
Phase: N/A
Study type: Interventional

The proposed study aims to investigate the use of a driving simulator in a virtual reality (VR) environment to improve the cognition state and spatial navigation of individuals with mild/moderate memory impairment. All volunteers will be assessed by the Montreal Cognitive Assessment (MoCA),Montgomery-Asberg Depression Scale (MADRS) and Morris Water orientation tests for baseline assessment after they sign the consent form and are enrolled into the study. Participants will also be scheduled for post-intervention assessments (MADRS, Morris Water Orientation and a simple questionnaire on how they evaluate the experiment). Participants of the study will play the driving simulator daily (5 days/week) for 15-20 minutes/day over a period of 2 consecutive weeks. Participants' daily performance data are recorded and uploaded on the secure server of the Priciple Investigator (PI). Simulator Sickness Questionnaire (SSQ) test will also be run after the first session of the experiment and at the end of the training period.

NCT ID: NCT03781583 Recruiting - Mobility Limitation Clinical Trials

SmartHMD for Improved Mobility

Start date: April 26, 2019
Phase: N/A
Study type: Interventional

The National Eye Institute estimated about 3 million people over age 40 in the US had low vision in 2010 and projects an increase to nearly 5 million in 2030 and 9 million in 2050. Current assistive technologies are a patchwork of mostly low-technology aids with limited capabilities that are often difficult to use, and are not widely adopted. This shortfall in capabilities of assistive technology often stems from lack of a user-centered design approach and is a critical barrier to improve the everyday activities of life (EDAL) and the quality of life (QOL) for individuals with low vision. An intuitive head mounted display (HMD) system on enhancing orientation and mobility (O&M) and crosswalk navigation, could improve independence, potentially decrease falls, and improve EDAL and QOL. The central hypothesis is that an electronic navigation system incorporating computer vision will enhance O&M for individuals with low vision. The goal is to develop and validate a smartHMD by incorporating advanced computer vision algorithms and flexible user interfaces that can be precisely tailored to an individual's O&M need. This project will address the specific question of mobility while the subject crosses a street at a signaled crosswalk. This is a dangerous and difficult task for visually impaired patients and a significant barrier to independent mobility.