- Magnetic Resonance Imaging (MRI)
- A preferred form of radiographic imaging for the examination soft tissue.
The University of Wisconsin has a MRI gopher site.
Mean Opinion Score Testing (MOS Testing).
- Provides a means of evaluating the subjective performance of voice and/or
video transmission equipment using procedures as set out in ITU-T P.800
and the related standards, a test protocol provided by HEI.
Mean Time Between Failures (MTBF)
- a measure of system or hardware reliability or availability.
Medical Diagnostic Imaging Support (MDIS)
- The Medical Diagnostic Imaging Support System is a large enterprise filmless
radiology imaging system that allows the creation of a virtual radiology
service. This project has been renamed the Joint Medical Imaging Technology (JMIT)
Medical Advanced Technology Management Office (MATMO)
- Medical Advanced Technology Management Office, part of U.S. Army Medical
Research and Materiel Command at Fort Detrick, Maryland. This is the staff
office responsible for day-to-day operation of the DOD Telemedicine Test Bed
and includes work on projects such as ProMed, T-Med, and the Telemedicine
Validation Initiative. This office is now called the Telemedicine Research Lab
- The combination of computer science, information science, and the health
sciences (medicine) designed to assist in the management and processing of
data to support the delivery of health care. A simple definition: Computer
applications in medical care. A more complex definition: Biomedical
Informatics is an emerging discipline that has been defined as the study,
invention, and implementation of structures and algorithms to improve
communication, understanding and management of medical information. The end
objective is the coalescing of data, knowledge, and the tools necessary to
apply that data and knowledge to the decision-making process, at the time and
place that a decision needs to be made. The focus on the structure and
algorithms necessary to manipulate the information is what separates
Biomedical Informatics from other medical disciplines where information
content is the focus.
- The substance across which data can be transmitted (optical fiber, copper
wire, coaxial cable, microwaves, etc.)
- A message (image or text) is divided into many parts and the parts are
transmitted to the receiver separately. Once the parts are received they are
put back together to form the message.
Microphone audio overlays playing tape audio
- The ability to talk to the other end while using the VCR
as the audio/video input source. In a telemedicine consult, this feature is
valuable when playing a pre-recorded tape of a procedure or examination and
the providers want to discuss what is being seen at the same time.
- An oddball term meaning that the camera can be sterilized by soaking in
disinfectant solutions. This adds significantly to the camera's expense but
may be necessary.
- US Military Nomenclature for compatible videoconferencing apparatus.
- An image management system that focuses one or more of the digital
modalities, such as an ultrasound mini-PACS,
or one application areas such as neuroradiology
Modem access for remote diagnostic support
- Indicates that a technical support center can call into the system on a
separate modem line to perform remote diagnostics.
- MODulator/DE-modulator (MODEM)
- Enables transmission of digital data
(by transforming it to and from analog waveforms) over standard analog
phone lines and cable video systems.
- see Motion Prediction.
Motion Picture Experts Group (MPEG)
- An algorithm for the digital processing of full motion video. According
to the NII vision, an accepted world
standard for multiplexing video, audio, and data for digital television
- A group of standards for compression and storage of motion video. MPEG-1
provides images of 240 lines x 360pixels/line,
digital transfer rates up to 1.5 Mbps, and compression
ratios of about 100:1. MPEG-2 provides a higher quality
picture - 720 horizontal lines x 480 vertical lines (pixels/line). The
MPEG-2 standard is used for HDTV, and
will be used for cable broadcasts. See also Motion JPEG
- A type of interframe coding used by codecs to compress motion video. By
examining statistics of previous video frame sequences, a prediction of the
motion vector and rate-of-change for an object or group of pixels in the
future is developed for subsequent frames. In H.261, the estimated vectors
must terminate within the image while in H.263, they may extend outside the
image bounds. Important at lower transmit bit rates, optional in H.261.
- To sequentially incorporate several data streams into a single data stream
in such a manner that each may later be recovered intact.
- Multiplexer ("MUX")
- A hardware device that divides a digital transmission stream into two or
more subchannels. This can be done by frequency division (splitting the single
band into multiple narrower bands) or by time division (allotting a common
channel to several different transmitting devices one at a time). Compare IMUX.
Multipoint Control (or Conferencing) Unit = Bridge (MCU)
- A device that enables participants at more than two sites to participate in
voice or video which links three or more videoconference locations for
fully-interactive audio, data and video teleconferencing. An ITU-T MCU must
meet the requirements of H.231 and H.243.
In addition, greater functionality for multipoint videoconferencing will be
provided by the T.12x and T.13x suites
of standards, desirable for both codec and