Biomaterial Database

A data acquisition system for clinical research. 1987

S W Bledsoe, and G Bashein, and S T Momii, and T F Hornbein

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.

UI	MeSH Term	Description	Entries
D008838	Microcomputers	Small computers using LSI (large-scale integration) microprocessor chips as the CPU (central processing unit) and semiconductor memories for compact, inexpensive storage of program instructions and data. They are smaller and less expensive than minicomputers and are usually built into a dedicated system where they are optimized for a particular application. "Microprocessor" may refer to just the CPU or the entire microcomputer.	Computers, Personal,Microprocessors,Computer, Personal,Microcomputer,Microprocessor,Personal Computer,Personal Computers
D008991	Monitoring, Physiologic	The continuous measurement of physiological processes, blood pressure, heart rate, renal output, reflexes, respiration, etc., in a patient or experimental animal; includes pharmacologic monitoring, the measurement of administered drugs or their metabolites in the blood, tissues, or urine.	Patient Monitoring,Monitoring, Physiological,Physiologic Monitoring,Monitoring, Patient,Physiological Monitoring
D009862	Online Systems	Computer-based Information systems having real-time remote access to information or processes.	On-Line Systems,On Line Systems,On-Line System,Online System,System, On-Line,System, Online,Systems, On-Line,Systems, Online
D011183	Postoperative Complications	Pathologic processes that affect patients after a surgical procedure. They may or may not be related to the disease for which the surgery was done, and they may or may not be direct results of the surgery.	Complication, Postoperative,Complications, Postoperative,Postoperative Complication
D003201	Computers	Programmable electronic devices designed to accept data, perform prescribed mathematical and logical operations at high speed, and display the results of these operations.	Calculators, Programmable,Computer Hardware,Computers, Digital,Hardware, Computer,Calculator, Programmable,Computer,Computer, Digital,Digital Computer,Digital Computers,Programmable Calculator,Programmable Calculators
D003625	Data Collection	Systematic gathering of data for a particular purpose from various sources, including questionnaires, interviews, observation, existing records, and electronic devices. The process is usually preliminary to statistical analysis of the data.	Data Collection Methods,Dual Data Collection,Collection Method, Data,Collection Methods, Data,Collection, Data,Collection, Dual Data,Data Collection Method,Method, Data Collection,Methods, Data Collection
D003626	Data Display	The visual representation of data via a manufactured system.	Information Display,Data Displays,Display, Data,Display, Information,Displays, Data,Displays, Information,Information Displays
D004569	Electroencephalography	Recording of electric currents developed in the brain by means of electrodes applied to the scalp, to the surface of the brain, or placed within the substance of the brain.	EEG,Electroencephalogram,Electroencephalograms
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001026	Coronary Artery Bypass	Surgical therapy of ischemic coronary artery disease achieved by grafting a section of saphenous vein, internal mammary artery, or other substitute between the aorta and the obstructed coronary artery distal to the obstructive lesion.	Aortocoronary Bypass,Bypass, Coronary Artery,Bypass Surgery, Coronary Artery,Coronary Artery Bypass Grafting,Coronary Artery Bypass Surgery,Aortocoronary Bypasses,Artery Bypass, Coronary,Artery Bypasses, Coronary,Bypass, Aortocoronary,Bypasses, Aortocoronary,Bypasses, Coronary Artery,Coronary Artery Bypasses