… Healing at a Distance
By: PETER JUNE RUFON
• Telemedicine is the delivery of health-related
services and information using
telecommunications and other technologies.
• It is “healing at a distance”.
• It works by bridging the information and
communication gap between patients and
health care members of community using
• Synchronous (Real-Time)
= the exchange of pre-recorded data between two or
more individuals at different times.
= Example: e-mail describing medical case to an expert
who sends back an opinion, diagnosis & management.
• Asynchronous (Store-and-Forward)
=requires the involved individuals to be simultaneously
present for immediate exchange of information.
= Example: phone referrals, videoconferencing and
• Technical Issues:
= lack of supporting infrastructure.
= variation in computer expertise among patients.
• Ethical Issues:
= data security
= privacy concerns.
and quality service.
CONCEPTS OF SECURITY:
Authentication = user ID and password, thereby securing the access to
only allowed personnel and access allowed information.
Transport Security = secured exchange of information over the internet
since data is encrypted.
Authorization = individual can access the file and patients information
dependent on the rights given.
Access Control – limits access to specified data.
Auditing = traceability for monitoring, evaluation and improvements.
Physical Security – clinical data must be housed in a secured room with
locks to be accessed by qualified personnel to reduce or eliminate tampering.
Computer security is never absolute.
• It is always a matter of
… relative risk