TECHNOLOGIES AND SOLUTIONS FOR DATA DISPLAY IN THE OPERATING ROOM (original) (raw)
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Medical displays in the healthcare system
Journal of the Society for Information Display, 2007
As the healthcare system changes and progresses, the need for different types of high-performing displays is also evolving. There are three categories of displays: (a) embedded (as part of life saving devices), (b) informative (for patient data and history, and managing workflow), and (c) imaging (high performing for diagnosis). The challenges of AMLCDs, which are the display of choice at the moment mainly in digital imaging, will be discussed. These challenges include very high resolution, high brightness, and wide viewing angle. The current performance of AMLCDs and the areas which they need to improve will be reviewed. A brief summary of the standards used to specify medical (diagnostic) displays will follow. A look into the future will predict the role of displays in hospitals.
A computerized perioperative data integration and display system
International Journal of Computer Assisted Radiology and Surgery, 2007
Object The operating room is rich in digital data that must be rapidly gathered and integrated by caregivers, potentially distracting them from direct patient care. We hypothesized that current desktop computers could integrate enough electronically accessible perioperative data to present a unified, contextually appropriate snapshot of the patient to the operating room team without requiring any user intervention. Materials and methods We implemented a system that integrates data from surgical and anesthesia devices and information systems, as well as an active radiofrequency identification location tracking system, to create a comprehensive, unified, time-synchronized database of all digital Electronic supplementary material The online version of this article (data produced by these systems. Next, a human factors engineering approach was used to identify selected data to show on a large format display during surgery. Results A prototype system has been in daily use in a clinical operating room since August 2005. The system functions automatically without any user input, as the display system self-configures based on cues from the primary data. The system is vendor agnostic with respect to input data sources and display options. Conclusion Automatic integration and display of teamsynchronizing data from medical devices and hospital information systems is now possible using software that runs on a personal computer.
The Mini-Screen: an Innovative Device for Computer Assisted Surgery Systems
2008
In this paper we focus on the design of Computer Assisted Surgery (CAS) systems and more generally Augmented Reality (AR) systems that assist a user in performing a task on a physical object. Digital information or new actions are defined by the AR system to facilitate or to enrich the natural way the user would interact with the real environment. We focus on the outputs of such systems, so that additional digital information is smoothly integrated with the real environment of the user, by considering an innovative device for displaying guidance information: the mini-screen. We first motivate the choice of the mini-screen based on the ergonomic property of perceptual continuity and then present a design space useful to create interaction techniques based on a mini-screen. Two versions of a Computer ASsisted PERicardial (CASPER) puncture application, as well as a computer assisted renal puncture application, developed in our teams, are used to illustrate the discussion.
A pc-based display for anesthesia monitoring
In current practice one of the anesthesiologist's main tasks is to monitor the physiological variables of a patient. Several displays at several locations around the patient provide the data. In the meantime the anesthesiologist has another task, namely to observe the patient and to keep an anesthesia record, which is usually handwritten. The number of measuring points and the complexity of the operations has increased so that during periods of high per-operative activity the workload imposed upon the anesthesiologist has become rather high. The research project was aimed at assessing the current status of anesthesia monitoring systems, to perform a task analysis and to make an initial design for a new anesthesia monitoring display using existing hardware configurations.
International Journal of Computer Assisted Radiology and Surgery, 2017
Purpose-Optical see-through head-mounted displays (OST-HMD) feature an unhindered and instantaneous view of the surgery site and can enable a mixed reality experience for surgeons during procedures. In this paper, we present a systematic approach to identify the criteria for evaluation of OST-HMD technologies for specific clinical scenarios, which benefit from using an object-anchored 2D-display visualizing medical information. Methods-Criteria for evaluating the performance of OST-HMDs for visualization of medical information and its usage are identified and proposed. These include text readability, contrast perception, task load, frame rate, and system lag. We choose to compare three commercially available OST-HMDs, which are representatives of currently available head-mounted display technologies. A multiuser study and an offline experiment are conducted to evaluate their performance. Results-Statistical analysis demonstrates that Microsoft HoloLens performs best among the three tested OST-HMDs, in terms of contrast perception, task load, and frame rate, while ODG R-7 offers similar text readability. The integration of indoor localization and fiducial tracking on the HoloLens provides significantly less system lag in a relatively motionless scenario. Conclusions-With ever more OST-HMDs appearing on the market, the proposed criteria could be used in the evaluation of their suitability for mixed reality surgical intervention. Currently,
Conceptualizing Screen Practices: How Head-Mounted Displays Transform Action and Perception, 2016
Based on case studies in minimally invasive surgery, the paper investigates how head-mounted displays (HMDs) transform action and perception in the operating theater. In particular, it discusses the methods and addresses the obstacles that are linked to the attempt to eliminate the divide between vision and visualization by augmenting the surgeon’s field of view with images. Firstly, it analyzes how HMDs change the way images are integrated into the surgical workflow by looking at the modalities of image production, transmission, and reception of HMDs. Secondly, it examines how HMDs change where and in which situations images are used by looking at screen architectures in minimally invasive surgery. Thirdly, it discusses the impact of HMD-based practice on action, perception, and decision-making, by examining how HMDs challenge the existing techniques and routines of surgical practice and, therefore, call for a new type of image and application-based expertise.
Combining Head-Mounted and Projector-Based Displays for Surgical Training
2003
We introduce and present preliminary results for a hybrid display system combining head-mounted and projector-based displays. Our work is motivated by a surgical training application, where it is necessary to simultaneously provide both a high-fidelity view of a central close-up task (the surgery) and visual awareness of objects and events in the surrounding environment In particular, for trauma surgeons it would be valuable to learn to work in an environment that is realistically filled with both necessary and distracting objects and events. In this paper, we motivate the use of a hybrid display system, discuss previous work, describe a prototype along with methods for geometric calibration, and present results from a controlled human subject experiment.
Journal of Clinical Monitoring and Computing, 2009
Objective. Vibrotactile display technology represents an innovative method to communicate vital information on patients from physiological monitoring devices to clinicians. The increasing number of sensors used in clinical practice has increased the amount of information required to be communicated, overwhelming the capacity of visual and auditory displays. The capacity to communicate could be increased with the use of a tactile display. In this study, we have compared a dorsal (DTD) and belt tactile (TB) display prototype in terms of learnability, error rate, and efficiency. Methods. We conducted a prospective randomized preclinical study with non-clinicians in a simulated clinical setting to compare the two tactile display prototypes. Information encoded in the tactile message included the type of physiological parameter monitored, the direction of change, and the magnitude of change. Following a period of training, 24 alerts were repeated three times for each display in random order. Each subject evaluated each display. Experiments were repeated with the addition of a distraction task. Results. DTD stimuli were easier to learn (52 trials compared to 101 trials; P = 0.0003), but the accuracy in decoding following training did not differ between the two prototypes. The DTD took longer to display the information, resulting in a faster TB response time (start of stimulus to response; 9.3 ± 1.4 s [mean ± SD] vs. DTD, 10.0 ± 1.4 s; F[1,27] = 4.66; P = 0.04). However, the DTD had a faster response interval (end of stimulus to response) compared to the TB (5.6 ± 1.4 s vs. 8.0 ± 1.4 s; F[1,27] = 47.91; P Conclusions. The communication of information on physiological parameters by tactile displays was easy to learn and accurate for both prototypes. The DTD was easier to learn and affected less by distraction. Further evaluation is required in a clinical setting with expert users to determine the clinical applicability of these prototypes.