Technology and Network
Interactive Televideo (ITV)
The KU Center for Telemedicine & Telehealth
offers telemedicine services utilizing interactive
televideo for consultations between healthcare
providers and patients.
The selection of an ITV system is based on several factors,
including the intended purpose of the system,
its required mobility and the space available.
Equipment for a clinical
application most often includes a video coder-decoder
application called a codec, a monitor to display
images, at least one
camera and a small cart to transport the equipment
between exam rooms.
KUCTT is upgrading its system to utilize only high-definition
codecs and 32-inch HD flat-panel monitors in
the clinics. The latter are able to display higher-resolution
streams and require less space than traditional
tube televisions. Smaller or larger monitors
may be required
for other applications.
In addition to mobile equipment, new
technology now allows for stationary systems with high-quality
video and audio connections to be placed on a provider’s
desk. This is accomplished through a stand-alone desktop
ITV system or through a combination of hardware and software
installed on the provider’s computer. The advantage
of this model is that providers can conduct telemedicine
clinics from the convenience of their offices, using the
same computer hardware they use to access email, electronic
health records and other information.
Several brands of ITV systems are available on the market
and most are compatible with one another. KUCTT has connected
with ITV systems in Asia, Australia, Europe and South
Bandwidth refers to the amount of data, including
video and voice, which can be transmitted at one
time. At a higher bandwidth, more video data can
be transferred, resulting in a better image. KUCTT
transmits most of its clinical consults at 384 Kbps
using H.323 Internet Protocol. HD videoconferencing
can be done at these lower speeds, but true HD can
only be obtained at 1Mbps of bandwidth or higher.
Even at a bandwidth lower than1Mbps, HD systems provide
better image quality than standard definition systems
at the same speed.
KUCTT uses Internet Protocol to connect telemedicine
sites. IP offers more flexibility and greater
availability than the older ISDN connections.
Peripherals – devices that enhance the
ability of the health provider to see and hear
patient even when they are miles apart – differentiate
telemedicine from ordinary videoconferencing.
Any medical device that produces a video output
signal is compatible with most teleconferencing
Some of the peripherals used by remote clinics to transmit
data to KUCTT include:
- Digital Stethoscopes –
Using the data channel, digital stethoscopes
transmit heart and lung sounds across the same H.323
IP connection used for the telemedicine link.
- Otoscope Camera –
Similar to a standard otoscope, this device
transmits a clear picture of the patient’s ear,
nose or throat. This camera is used extensively in the
- General Examination Camera or "Dermascope" –
A camera with a very short focal length designed
for extremely close, detailed video of the skin. It
is frequently used for dermatological, burn and wound-care
- Intra-oral Scope –
The intra-oral scope is a lighted camera designed
to show the teeth, tonsils, throat and other oral structures.
Please contact KUCTT for questions related to telemedicine technology, peripherals or connectivity.