A data acquisition system for clinical research
| Autor: | Stephen W. Bledsoe, G. Bashein, Thomas F. Hornbein, Steven T. Momii |
|---|---|
| Rok vydání: | 1987 |
| Předmět: |
business.product_category
Computer science Neurocognitive Disorders Critical Care and Intensive Care Medicine Online Systems Tape recorder Postoperative Complications Data acquisition Microcomputers Chart Synchronization (computer science) Humans Instrumentation (computer programming) Coronary Artery Bypass Monitoring Physiologic Research data Computers business.industry Data Collection Track (disk drive) General Engineering Electroencephalography Analog recording Tape Recording Data Display business Computer hardware |
| Zdroj: | Journal of Clinical Monitoring. 3:160-164 |
| ISSN: | 0748-1977 |
| DOI: | 10.1007/bf01695938 |
| Popis: | We developed a system for automatic collection and synchronization of multiple physiological variables during clinical investigations. Centered around an eight-track instrumentation tape recorder, the system solves several problems encountered in gathering this type of research data: (1) slowly changing variables are digitized and compressed onto a single track by recording them in one serial message, allowing for recording many more variables than there are tape tracks available; (2) simultaneous analog recording allows retention of original data for variables that may be processed subsequently by multiple schemes; (3) data acquisition is verified with both analog chart recording and numerical video display monitors; (4) off-line computer processing time is decreased at least twofold by using tape playback speeds faster than the recording speed; (5) cost is kept low by using an inexpensive 1/4-inch (0.64-cm) tape medium and dedicated microcomputers; and (6) the system is unobtrusive, portable, and easily reconfigured for different clinical studies. It proved to be reliable in a study of more than 80 patients undergoing cardiac surgery. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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