A system, apparatus and method for determining prognosis in atrial fibrillation non-invasively detects electrical activity of the heart with external electrodes, such as with ECG leads. The diagnostic system, apparatus and method provide a non-invasive technique to classify the severity...http://www.google.co.uk/patents/US5772604?utm_source=gb-gplus-sharePatent US5772604 - Method, system and apparatus for determining prognosis in atrial fibrillation 
