Lifelink: 3G-based mobile telemedicine system

Telemed J E Health. 2009 Apr;15(3):241-7. doi: 10.1089/tmj.2008.0098.


Current wired telemedicine systems encounter difficulties when implemented in archipelagic developing countries because of the high cost of fixed infrastructure. In this research, we devised Lifelink, a mobile real-time telemonitoring and diagnostic facility to command and control remote medical devices through mobile phones. The whole process is phone-based, effectively freeing offsite medical specialists from stationary monitoring consoles and endowing the system with the potential to increase the number participating consultants. The electrocardiogram (ECG) readings are analyzed using a detrended fluctuation technique and classified into pathological cases using an unassisted K-means clustering algorithm. We analyzed 30 batches of 2-hour ECG signals taken from cardiac patients (20 males, 10 females, mean age 46.7 years) with pre-diagnosed pathologies. The method successfully categorized the 30 subjects without user intervention into the following cases: normal (at 86.7% accuracy), congestive heart failure (86.7%), and atrial fibrillation (80.0%). The synergy of mobile monitoring and fluctuation analysis presents a powerful platform to reach remote, underserved communities with poor or nonexistent wired communication structures. It is likely to be essential in the development of new mobile diagnostic and prognostic measures.

Publication types

  • Evaluation Study

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Algorithms
  • Atrial Fibrillation / diagnosis
  • Atrial Fibrillation / physiopathology
  • Cell Phone*
  • Computer Systems
  • Electrocardiography / instrumentation*
  • Female
  • Heart Failure / diagnosis
  • Heart Failure / physiopathology
  • Humans
  • Male
  • Medically Underserved Area*
  • Middle Aged
  • Sensitivity and Specificity
  • Telemedicine / instrumentation*
  • Telemetry / instrumentation*