Date and Location: Tuesday, September
24th, 2013, 2:00pm - 3:00pm @ SB 201.
Abstract
Early detection and intervention are essential for preventing
clinical deterioration in patients. We are developing a
two-tiered clinical warning system designed to identify the signs of
clinical deterioration and provide early warning of serious clinical
events at general hospital units. The first tier of the system
automatically identifies patients at risk of clinical deterioration
from existing electronic medical record databases. The second
tier performs real-time clinical event detection based on vital sign
data collected from on-body wireless sensors attached to those
high-risk patients. Wireless sensor networks play an important
role in clinical warning by collecting real-time vital signs for
clinical decision support. This talk presents the architecture
of, and our experiences with, a large-scale wireless clinical
monitoring system. Our system encompasses portable wireless
pulse oximeters, a wireless relay network spanning multiple hospital
floors, and integration with electronic medical record
databases. We report our experience and lessons learned from a
14-month clinical trial of the system in six hospital wards of
Barnes-Jewish Hospital in St. Louis, Missouri. Our experiences
show the feasibility of achieving reliable vital sign collection
using a wireless sensor network integrated with hospital IT
infrastructure and procedures. We highlight technical and
non-technical elements that pose challenges in a real-world hospital
environment and provide guidelines for successful and efficient
deployment of similar systems. The convergence of wireless
sensors, mobile computing, data mining and electronic medical record
in clinical warning systems will lead to enhanced quality of care
for patients in hospitals and potentially outpatients in their
everyday lives.
Biography
Chenyang Lu is a Professor of Computer Science and Engineering at
Washington University in St. Louis. Professor Lu is Editor-in-Chief
of ACM Transactions on Sensor Networks, Area Editor of IEEE Internet
of Things Journal, and Associate Editor of Real-Time Systems. He
also serves as Program Chair of premier conferences such as IEEE
Real-Time Systems Symposium (RTSS 2012), ACM/IEEE International
Conference on Cyber-Physical Systems (ICCPS 2012) and ACM Conference
on Embedded Networked Sensor Systems (SenSys 2014). Professor Lu is
the author and co-author of over 100 research papers with over 10000
citations and an h-index of 47. He received the Ph.D. degree from
University of Virginia in 2001, the M.S. degree from Chinese Academy
of Sciences in 1997, and the B.S. degree from University of Science
and Technology of China in 1995, all in computer science. His
research interests include real-time systems, wireless sensor
networks and cyber-physical systems.
