A system comprising a processor that includes a cardiac signal vector module and an ischemia detection module. The cardiac signal vector module is configured to measure a first dominant vector corresponding to a direction and magnitude of maximum signal power of a first segment of at least one cardiac...http://www.google.ca/patents/US7567836?utm_source=gb-gplus-sharePatent US7567836 - ECG signal power vector detection of ischemia or infarction
