Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference
-
Conf Proc IEEE Eng Med Biol Soc · Jan 2006
Using a generalized neural network to identify airway obstructions in anesthetized patients postoperatively based on photoplethysmography.
Photoplethysmography has been recently studied asa non-invasive indicator of circulatory and respiratory function. In this study, photoplethysmographic (PPG) data were recorded from patients under the influence of anesthesia, but not intubated. ⋯ This classifier considers inter-subject variability so that it generalizes well to a large population. This classifier provided 86.1%accuracy to classify segments as being times of 'obstructed' vs.'normal' airways status.
-
Conf Proc IEEE Eng Med Biol Soc · Jan 2006
ReviewIntegrating data, models, and reasoning in critical care.
Modern intensive care units (ICUs) employ an impressive array of technologically sophisticated instrumentation to provide detailed measurements of the pathophysiological state of each patient. Providing life support in the ICU is becoming an increasingly complex task, however, because of the growing volume of relevant data from clinical observations, bedside monitors, mechanical ventilators, and a wide variety of laboratory tests and imaging studies. ⋯ There is a critical need to integrate the disparate clinical information into a single, rational framework and to provide the clinician with hypothesis-driven displays that succinctly summarize a patient's trajectory over time. In this paper, we present our recent efforts towards the development of such an advanced patient monitoring system that aims to improve the efficiency, accuracy, and timeliness of clinical decision making in intensive care.
-
Conf Proc IEEE Eng Med Biol Soc · Jan 2006
Correction of erroneous and ectopic beats using a point process adaptive algorithm.
We present a new R-R interval correction procedure based on a point process model of the human heart beat. The algorithm combines an adaptive point process filter with a set of conditions on the probability of having a beat according to the model. This framework allows for correction of ectopic and erroneously detected beats in an on-line fashion, simultaneous with computation of instantaneous estimates of heart rate and heart rate variability. Results demonstrate the efficacy of the method, and show new heart rate and heart rate variability dynamics corrected for artifacts introduced by incorrect and/or irregular R-R intervals.
-
Conf Proc IEEE Eng Med Biol Soc · Jan 2006
An integrated system supporting training in medical and administrative decision making in the emergency department.
The aim of the present project was the development of an integrated computer-based system supporting training in medical and administrative decision making in the Emergency Department. The system comprises of, first, a module supporting on-line acquaintance with Emergency Medical Guidelines, second, a vital-signs monitoring and processing module, and finally an administrative module organizing the most relevant facts about a patient's health status in compliance with the ASTM E2369-0 Standard Specification for Continuity of Care Record, in order to be employed after discharge from the Emergency Care to a hospital ward or to homecare.