TY - JOUR
T1 - Novel mapping storage architecture enabling tens of thousands of channels on a personal computer platform
AU - Witkowski, Francis X.
AU - Penkoske, Patricia A.
AU - Plonsey, Robert
AU - Kavanagh, Katherine M.
AU - Giles, Wayne R.
AU - Spano, Mark L.
AU - Ditto, William L.
N1 - Copyright:
Copyright 2004 Elsevier Science B.V., Amsterdam. All rights reserved.
PY - 1996
Y1 - 1996
N2 - The electrophysiological mechanisms underlying cardiac arrhythmias are studied by determining the spatiotemporal progression of cardiac depolarization and repolarization, termed cardiac mapping. Analysis of transient events requires information to be obtained from multiple sites simultaneously. The most significant problem with the design of such systems has been the large amount of data storage required and the rapidity of the composite data stream. Mapping systems with 500 simultaneous channels are common, and 4,000 channel systems have been envisioned. We report a relatively simple approach to this data storage problem that uses commercially available frame grabber technology coupled to a personal computer. With this approach we have developed a storage system capable of 24,000 channels sampled at 1 Khz with 12 bit resolution. Hybrid mapping systems incorporating optical recording systems utilizing voltage sensitive dyes from devices such as CCD cameras as well as conventional extracellular electrograms can simultaneously utilize this approach.
AB - The electrophysiological mechanisms underlying cardiac arrhythmias are studied by determining the spatiotemporal progression of cardiac depolarization and repolarization, termed cardiac mapping. Analysis of transient events requires information to be obtained from multiple sites simultaneously. The most significant problem with the design of such systems has been the large amount of data storage required and the rapidity of the composite data stream. Mapping systems with 500 simultaneous channels are common, and 4,000 channel systems have been envisioned. We report a relatively simple approach to this data storage problem that uses commercially available frame grabber technology coupled to a personal computer. With this approach we have developed a storage system capable of 24,000 channels sampled at 1 Khz with 12 bit resolution. Hybrid mapping systems incorporating optical recording systems utilizing voltage sensitive dyes from devices such as CCD cameras as well as conventional extracellular electrograms can simultaneously utilize this approach.
UR - http://www.scopus.com/inward/record.url?scp=0030316054&partnerID=8YFLogxK
M3 - Conference article
AN - SCOPUS:0030316054
SN - 0589-1019
VL - 5
SP - 1885
EP - 1886
JO - Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
JF - Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
T2 - Proceedings of the 1996 18th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 4 (of 5)
Y2 - 31 October 1996 through 3 November 1996
ER -