scholarly journals The effect of augmented reality on the accuracy and learning curve of external ventricular drain placement

2021 ◽  
Vol 51 (2) ◽  
pp. E8
Author(s):  
Frederick Van Gestel ◽  
Taylor Frantz ◽  
Cédric Vannerom ◽  
Anouk Verhellen ◽  
Anthony G. Gallagher ◽  
...  
Keyword(s):  
Augmented Reality ◽  
Learning Curve ◽  
External Ventricular Drain ◽  
Training Session ◽  
Freehand Technique ◽  
Custom Made ◽  
Drain Placement ◽  
Improved Performance ◽  
The Impact ◽  
Better Than

OBJECTIVE The traditional freehand technique for external ventricular drain (EVD) placement is most frequently used, but remains the primary risk factor for inaccurate drain placement. As this procedure could benefit from image guidance, the authors set forth to demonstrate the impact of augmented-reality (AR) assistance on the accuracy and learning curve of EVD placement compared with the freehand technique. METHODS Sixteen medical students performed a total of 128 EVD placements on a custom-made phantom head, both before and after receiving a standardized training session. They were guided by either the freehand technique or by AR, which provided an anatomical overlay and tailored guidance for EVD placement through inside-out infrared tracking. The outcome was quantified by the metric accuracy of EVD placement as well as by its clinical quality. RESULTS The mean target error was significantly impacted by either AR (p = 0.003) or training (p = 0.02) in a direct comparison with the untrained freehand performance. Both untrained (11.9 ± 4.5 mm) and trained (12.2 ± 4.7 mm) AR performances were significantly better than the untrained freehand performance (19.9 ± 4.2 mm), which improved after training (13.5 ± 4.7 mm). The quality of EVD placement as assessed by the modified Kakarla scale (mKS) was significantly impacted by AR guidance (p = 0.005) but not by training (p = 0.07). Both untrained and trained AR performances (59.4% mKS grade 1 for both) were significantly better than the untrained freehand performance (25.0% mKS grade 1). Spatial aptitude testing revealed a correlation between perceptual ability and untrained AR-guided performance (r = 0.63). CONCLUSIONS Compared with the freehand technique, AR guidance for EVD placement yielded a higher outcome accuracy and quality for procedure novices. With AR, untrained individuals performed as well as trained individuals, which indicates that AR guidance not only improved performance but also positively impacted the learning curve. Future efforts will focus on the translation and evaluation of AR for EVD placement in the clinical setting.

scholarly journals The effect of augmented reality on the learning curve of external ventricular drain placement

2021 ◽  
Vol 1 ◽  
pp. 100824
Author(s):  
F. Van Gestel ◽  
T. Frantz ◽  
C. Vannerom ◽  
A. Verhellen ◽  
A.G. Gallagher ◽  
...  
Keyword(s):  
Augmented Reality ◽  
Learning Curve ◽  
External Ventricular Drain ◽  
Drain Placement

scholarly journals Augmented Reality, Mixed Reality, and Hybrid Approach in Healthcare Simulation: A Systematic Review

2021 ◽  
Vol 11 (5) ◽  
pp. 2338
Author(s):  
Rosanna Maria Viglialoro ◽  
Sara Condino ◽  
Giuseppe Turini ◽  
Marina Carbone ◽  
Vincenzo Ferrari ◽  
...  
Keyword(s):  
Augmented Reality ◽  
Mixed Reality ◽  
Ethical Issues ◽  
Medical Training ◽  
Hybrid Approach ◽  
Dental Surgery ◽  
Feasibility Assessment ◽  
Hybrid Approaches ◽  
Custom Made ◽  
Improved Performance

Simulation-based medical training is considered an effective tool to acquire/refine technical skills, mitigating the ethical issues of Halsted’s model. This review aims at evaluating the literature on medical simulation techniques based on augmented reality (AR), mixed reality (MR), and hybrid approaches. The research identified 23 articles that meet the inclusion criteria: 43% combine two approaches (MR and hybrid), 22% combine all three, 26% employ only the hybrid approach, and 9% apply only the MR approach. Among the studies reviewed, 22% use commercial simulators, whereas 78% describe custom-made simulators. Each simulator is classified according to its target clinical application: training of surgical tasks (e.g., specific tasks for training in neurosurgery, abdominal surgery, orthopedic surgery, dental surgery, otorhinolaryngological surgery, or also generic tasks such as palpation) and education in medicine (e.g., anatomy learning). Additionally, the review assesses the complexity, reusability, and realism of the physical replicas, as well as the portability of the simulators. Finally, we describe whether and how the simulators have been validated. The review highlights that most of the studies do not have a significant sample size and that they include only a feasibility assessment and preliminary validation; thus, further research is needed to validate existing simulators and to verify whether improvements in performance on a simulated scenario translate into improved performance on real patients.

Synchronicity and Group Ability to Autonomously Cluster Brainstorming Ideas

2009 ◽  
Vol 5 (4) ◽  
pp. 67-81 ◽  
Author(s):  
Joel H. Helquist ◽  
John Krus ◽  
Jay F. Nunamaker Jr.
Keyword(s):  
Support System ◽  
Group Support ◽  
Group Support System ◽  
Improved Performance ◽  
The Impact ◽  
Better Than

This article presents an exploratory examination of the impact of synchronicity and quantity of brainstorming ideas on the ability of a group to autonomously cluster brainstorming ideas. Groups were tasked with clustering brainstorming ideas through the use of a group support system (GSS) tool. The tool allowed each participant to create and modify categories to which individual brainstorming ideas could be aligned. No explicit means of coordination were available; each participant worked autonomously to cluster the brainstorming ideas. The results indicated that the groups working synchronously displayed improved performance and satisfaction ratings. Likewise, groups categorizing the smallest quantity of brainstorming ideas performed better than the larger quantities.

scholarly journals App-assisted external ventricular drain insertion

2016 ◽  
Vol 125 (3) ◽  
pp. 754-758 ◽  
Author(s):  
Behzad Eftekhar
Keyword(s):  
Augmented Reality ◽  
Ex Vivo ◽  
External Ventricular Drain ◽  
Ease Of Use ◽  
Anatomical Landmarks ◽  
Frontal Horn ◽  
Neurosurgical Planning ◽  
Freehand Technique ◽  
Individual Variations ◽  
Tailored Approach

The freehand technique for insertion of an external ventricular drain (EVD) is based on fixed anatomical landmarks and does not take individual variations into consideration. A patient-tailored approach based on augmented-reality techniques using devices such as smartphones can address this shortcoming. The Sina neurosurgical assist (Sina) is an Android mobile device application (app) that was designed and developed to be used as a simple intraoperative neurosurgical planning aid. It overlaps the patient's images from previously performed CT or MRI studies on the image seen through the device camera. The device is held by an assistant who aligns the images and provides information about the relative position of the target and EVD to the surgeon who is performing EVD insertion. This app can be used to provide guidance and continuous monitoring during EVD placement. The author describes the technique of Sina-assisted EVD insertion into the frontal horn of the lateral ventricle and reports on its clinical application in 5 cases as well as the results of ex vivo studies of ease of use and precision. The technique has potential for further development and use with other augmented-reality devices.

Participant-Driven Approach to Autonomously Cluster Brainstorming Ideas

2011 ◽  
pp. 332-346
Author(s):  
Joel H. Helquist ◽  
John Krus ◽  
Jay Nunamaker
Keyword(s):  
Support Systems ◽  
Group Support Systems ◽  
Group Support ◽  
Improved Performance ◽  
The Impact ◽  
Better Than

This chapter presents an exploratory examination of the impact of synchronicity and quantity of brainstorming ideas on the ability of a group to autonomously cluster brainstorming ideas. Groups were tasked with clustering brainstorming ideas through the use of a Group Support Systems (GSS) tool. The tool allowed each participant to create and modify categories to which individual brainstorming ideas could be aligned. No explicit means of coordination were available; each participant worked autonomously to cluster the brainstorming ideas. The results indicated that the groups working synchronously displayed improved performance and satisfaction ratings. Likewise, groups categorizing the smallest quantity of brainstorming ideas performed better than the larger quantities.

scholarly journals Software complex for assessment and rehabilitation of motor disorders in patients with ischemic stroke

2020 ◽  
Vol 18 (4) ◽  
pp. 136-142
Author(s):  
I. V. Tolmachev ◽  
V. M. Alifirova ◽  
S. D. Kаzakov ◽  
E. S. Koroleva
Keyword(s):  
Ischemic Stroke ◽  
Augmented Reality ◽  
Virtual Environment ◽  
Training Session ◽  
Upper Extremities ◽  
Cerebral Stroke ◽  
Motor Disorders ◽  
Software Complex ◽  
Specialized Software ◽  
The Impact

Objective. Development of a specialized software complex that creates a controlled virtual environment as well as to capture and calculate the movement data in the process of rehabilitation.Materials and methods. To evaluate the impact of visual stimuli created using the augmented reality system on the motor function, a software was developed that visualizes data via augmented reality glasses and processes data obtained from motion capture sensors. The study was conducted at the Department of Neurology and Neurosurgery and the Department of Medical and Biological Cybernetics of Siberian State Medical University in 2018–2019. The sample included 59 patients with acute ischemic cerebral stroke in the middle cerebral artery. The course of motor rehabilitation using augmented reality technology was ten days. The duration of one training session was 60 minutes.Results. Motor neurorehabilitation of patients with paresis of the upper extremities using augmented reality makes it possible to improve motor skills. Analysis of the accuracy of movements showed a significant increase in the value of the spectral criterion with an increase in the number of trainings, which indicates a decrease in the number of unnecessary movements during the main task. A significant increase in the number of completed movements with each subsequent training was revealed. This indicates a rise in the speed of the task over the course of rehabilitation, as well as reduction of the rest period between the attempts performed during one training session.Conclusion. The developed specialized software recreates a controlled virtual environment with the ability to register the parameters of human movement. The method was used for rehabilitation of motor disorders in patients with ischemic stroke of the brain and paresis of the upper extremities. The results of the study revealed a significant increase in the accuracy of movements, and a rise in endurance, which indicates the effectiveness of the approach in motor neurorehabilitation. 

Design of spline surface vacuum gripper for pick and place robotic arms

2020 ◽  
Vol 4 (2) ◽  
pp. 48-55
Author(s):  
A. S. Jamaludin ◽  
M. N. M. Razali ◽  
N. Jasman ◽  
A. N. A. Ghafar ◽  
M. A. Hadi
Keyword(s):  
Cycle Time ◽  
Industrial Robot ◽  
Annealing Process ◽  
Vacuum Suction ◽  
Robotic Arms ◽  
Custom Made ◽  
Pick And Place ◽  
Manufacturing Procedure ◽  
Production Flexibility ◽  
The Impact

The gripper is the most important part in an industrial robot. It is related with the environment around the robot. Today, the industrial robot grippers have to be tuned and custom made for each application by engineers, by searching to get the desired repeatability and behaviour. Vacuum suction is one of the grippers in Watch Case Press Production (WCPP) and a mechanism to improve the efficiency of the manufacturing procedure. Pick and place are the important process for the annealing process. Thus, by implementing vacuum suction gripper, the process of pick and place can be improved. The purpose of vacuum gripper other than design vacuum suction mechanism is to compare the effectiveness of vacuum suction gripper with the conventional pick and place gripper. Vacuum suction gripper is a mechanism to transport part and which later sequencing, eliminating and reducing the activities required to complete the process. Throughout this study, the process pick and place became more effective, the impact on the production of annealing process is faster. The vacuum suction gripper can pick all part at the production which will lower the loss of the productivity. In conclusion, vacuum suction gripper reduces the cycle time about 20%. Vacuum suction gripper can help lower the cycle time of a machine and allow more frequent process in order to increase the production flexibility.

The Learning Curve in Arthroscopic ACL Reconstruction. The impact on the Surgical Time and Postoperative Clinical Results

2018 ◽  
Vol 69 (10) ◽  
pp. 2874-2876
Author(s):  
Teodor Negru ◽  
Stefan Mogos ◽  
Ioan Cristian Stoica
Keyword(s):  
Anterior Cruciate Ligament ◽  
Learning Curve ◽  
Clinical Outcomes ◽  
Positive Impact ◽  
Cruciate Ligament ◽  
Clinical Results ◽  
Single Bundle ◽  
Surgical Time ◽  
Anterior Cruciate ◽  
The Impact

Rupture of the anterior cruciate ligament (ACL) is a common injury. The objective of the current study was to evaluate if the learning curve has an impact on surgical time and postoperative clinical outcomes after anatomic single-bundle anterior cruciate ligament reconstruction (ACLR) using an outside-in tunnel drilling hamstrings technique. The learning curve has a positive impact on surgical time but has no influence on postoperative clinical outcomes at short time follow-up.

Relay Selection-aware Non-orthogonal Multiple Access Networks: Direct and Relaying Mode

2020 ◽  
Vol 13 (3) ◽  
pp. 348-354
Author(s):  
Dinh-Thuan Do ◽  
Minh-Sang V. Nguyen
Keyword(s):  
Relay Selection ◽  
Multiple Access ◽  
Decode And Forward ◽  
Selection Scheme ◽  
Fixed Power ◽  
Transmission Quality ◽  
Improved Performance ◽  
Outage Probabilities ◽  
Future Work ◽  
The Impact

Objective: In this paper, Decode-and-Forward (DF) mode is deployed in the Relay Selection (RS) scheme to provide better performance in cooperative downlink Non-orthogonal Multiple Access (NOMA) networks. In particular, evaluation regarding the impact of the number of multiple relays on outage performance is presented. Methods: As main parameter affecting cooperative NOMA performance, we consider the scenario of the fixed power allocations and the varying number of relays. In addition, the expressions of outage probabilities are the main metric to examine separated NOMA users. By matching related results between simulation and analytical methods, the exactness of derived formula can be verified. Results: The intuitive main results show that in such cooperative NOMA networks, the higher the number of relays equipped, the better the system performance can be achieved. Conclusion: DF mode is confirmed as a reasonable selection scheme to improve the transmission quality in NOMA. In future work, we will introduce new relay selections to achieve improved performance.

scholarly journals Advertising Media Impact in Consumer Buying Behavior

2019 ◽  
Vol 8 ◽  
pp. 54-56
Author(s):  
Ashmita Dahal Chhetri
Keyword(s):  
Consumer Behavior ◽  
Young Male ◽  
Electronic Media ◽  
Buying Behavior ◽  
Media Impact ◽  
High Degree ◽  
The Impact ◽  
Buying Behaviors ◽  
The Relationship ◽  
Better Than

Advertisements have been used for many years to influence the buying behaviors of the consumers. Advertisements are helpful in creating the awareness and perception among the customers of a product. This particular research was conducted on the 100 young male and female who use different brands of product to check the influence of advertisement on their buying behavior while creating the awareness and building the perceptions. Correlation, regression and other statistical tools were used to identify the relationship between these variables. The results revealed that the relationship between media and consumer behavior is positive. The adve1tising impact on sales and there is positive and high degree relationship between advertising and consumer behavior. The impact on advertising of a product of electronic media is better than non-electronic media.

Sign in / Sign up

Export Citation Format

Share Document