| US 7,572,232 B2 | ||
| Cardiac signal display and event detection using multiresolution Z-score transform | ||
| Dan Li, Shoreview, Minn. (US); and Quan Ni, Shoreview, Minn. (US) | ||
| Assigned to Cardiac Pacemakers, Inc., St. Paul, Minn. (US) | ||
| Filed on Jul. 24, 2006, as Appl. No. 11/459,588. | ||
| Prior Publication US 2008/0021337 A1, Jan. 24, 2008 | ||
| Int. Cl. A61B 5/04 (2006.01) | ||
| U.S. Cl. 600—508 | 20 Claims |
| 1. A system comprising:
a medical device including:
a processor adapted to receive at least first sensor data obtained from a first sensor and second sensor data obtained from
a second sensor, wherein the first and second sensors are each adapted to produce a time-varying physiologic electrical sensor
signal, and wherein at least one of the first and second sensors is implantable; and
a Z-score transformation (ZST) module included in the processor to calculate a ZST for the first sensor data and a ZST for
the second sensor data, and wherein the ZST module is adapted to calculate a ZST having a first resolution for a first segment
of at least one of the first or second sensor data, and to calculate a ZST having a second resolution for a second segment
of the same first or second sensor data, wherein at least a portion of the second segment overlaps the first segment, and
wherein the second resolution is capable of being different than the first resolution; and
a display, adapted to display the ZSTs in visual correspondence with each other over time, in communication with the processor.
|