NDLI: Spatial characterization of ischemia in 12-lead ECG recordings during PCI using both depolarization and repolarization indices

Content Provider	IEEE Xplore Digital Library
Author	Romero, D. Pueyo, E. Ringborn, M. Laguna, P.
Copyright Year	2009
Description	Author affiliation: Department of Cardiology, University of Lund, Sweden (Ringborn, M.) \|\| Communications Technology Group, I3A, University of Zaragoza, Spain (Romero, D.; Pueyo, E.; Laguna, P.)
Abstract	Spatial characterization of ischemia is addressed by evaluating ECG-derived indices: the ST level at J point plus 60 ms, STJ+60; S wave amplitude, Sa; the upward and downward QRS slopes (IUS and IDS); and high-frequency QRS in the band 150–250 Hz, HF-QRS(150–250) over 12-lead ECG signals recorded during prolonged elective PCI. Absolute changes of each index I during coronary occlusion, ΔI, and their relative changes, RI, were quantified. Mean R STJ+60= 14.5, R Sa= 15.2 and RIDS= 6.2 times their normal variations in pre-PCI recordings, respectively, showed the most pronounced changes as well as a very similar and distinctive lead-profiles depending on the occlusion site. We conclude that the ECG-derived indices from the final part of the QRS complex show high sensitivity for detection of ischemia. Moreover, their spatial distributions show the largest changes in leads closest to the region adjacent to the occluded artery, which can be considered for occlusion site identification.
Starting Page	113
Ending Page	116
File Size	285641
Page Count	4
File Format	PDF
ISBN	9781424472819
ISSN	02766547
e-ISBN	9781424472826
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-09-13
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Computers in Cardiology(CinC)
Subject Keyword	Ischemic pain Electrocardiography Arteries Medical treatment Electrodes Communications technology Cardiology Signal analysis Frequency Intrusion detection
Content Type	Text
Resource Type	Article

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