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Sunday, May 18, 2008

Challenges And Solutions For Medical Imaging Bandwidth Requirements

A Picture Archiving and Communications System (PACS) is integral to the smooth, timely, and quality delivery of health care in every medical setting today. Not only are they integral but they are crucial to the clinical and business aspects of radiology practice as we know it. However, PACS have long faced challenges in delivering this digital imaging support to such diagnostic modalities as X-ray, ultrasound, computed tomography (CT), magnetic resonance imaging [MRI], Positron Emission Tomography (PET), and Teleradiology. The main issue has always been the availability of sufficient bandwidth (load and speed).....at a reasonable cost.....to support the growing demand for quick easy web-based access by medical providers. As Medical Imagery becomes more and more digitalized....with bandwidth improvements, communication will be faster and easier, and it will be possible to transmit heavier studies in less time and with high quality.

An internal (facility owned) PACS leverages a common infrastructure for all the digital imaging modalities and provides image storage and archiving....with recall as needed....for an entire medical facility or campus. By instituting a web enabled distribution system a facility PACS is able to provide ready image access to the immediate radiology department as well as the full range of clinicians and specialists, especially surgeons and referring physicians. To ensure functionality at the high level required means facing the heavy bandwidth appetite of the modalities supported.

Even an Application Service Provider (ASP) company that hosts applications, manages them and rents access to images from a centrally managed facility is not immune to the bandwidth concern. ASP providers allow an institution to outsource information technology applications infrastructure, management, support and maintenance. As defined by the ASP Industry Consortium, ASP service is designed to deliver and manage applications and computer services from remote data centres to multiple users via the Internet or a private network.? therein lies they're challenge....a high bandwidth requirement delivered over often a subtantial difference on an on-demand basis.

PACS manufacturers have developed numerous solutions to get around the bandwidth problem. They've compressed images, supported standard network interfaces and protocols such as Ethernet and TCP/IP, and deployed local area networks (LANs) with high bandwidths to link hospitals or referring physicians in a contained environment. But how do they handle bandwidth when institutions are separated by tens or hundreds of miles, especially since images have become larger and more complicated?

Some PACS vendors rely on the communications infrastructure in an area, which varies with the bandwidth that is available from the local telephone company and the price a hospital is willing to pay, said Frederick Wagner, manager of PACS for Toshiba. Other PACS providers offer streaming technology that transports high-quality images in real time over any bandwidth, including telephone lines and enterprise-wide LANs.

Another contributing solution is a technology called Pixels-on-Demand by Real Time Media. This technology speeds processing by capturing images from archives or PACS storage without waiting for preprocessing, immediately streams data from selected regions of interest, and delivers the most visually important features of an image to the viewer first.

The underlying solution to the bandwidth issue goes beyond even system technologies, network interfaces, image compression, and infrastructure protocols. It lies with the provision of the appropriate bandwidth capacity (circuits)....at a reasonable cost....via leveraging the fiber-optic infrastructure available throughout the United States. Enabling direct fiber-optic connectivity internally, or between hospitals and distant data centers, is the most cost-effective application of bandwidth. Use of Optical Carrier (Sonet Ring) bandwidth (likely OC3 or OC48) or Gigabit Ethernet allows a medical facility to optimize it's Local Area Network (LAN). While ASP organizations can scale their application service provider (ASP) service to small imaging centers as well as large, far-flung health systems.

To find a fiber optic infrastructure provider which can deliver the right bandwidth solution for your medical imaging application.....I strongly recommend that you take advantage of the free consultation available from an independent bandwidth broker such as DS3-Bandwidth.com.

Michael is the owner of FreedomFire Communications....including Business-VoIP-Solution.com. Michael also authors Broadband Nation where you're always welcome to drop in and catch up on the latest BroadBand news, tips, insights, and ramblings for the masses.

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Broadband Internet Satellite Dish Components

If you are interested in signing up for satellite broadband internet service then you may be aware that you will need a satellite dish in order to send and receive information. However, what you may not be aware of is that you need a special satellite that is unique to the satellite internet service provider you selected. The satellite you get for satellite internet is not the same type of satellite as your DirectTV satellite so you cant use your cable television satellite to pick up an internet signal.

When you purchase your satellite internet system it will come with a number of components. These components will be separated into two groups, outside components and inside components. A certified satellite technician will need to install both sets of satellite components for you. This is an FCC law. Two way satellite installation is simply not a do-it-yourself project.

The outside broadband internet satellite dish components include the satellite dish, a satellite mount, a feed horn and a feed line. The size of your dish and the mount are going to depend on the service package you select and where your home or office is located. People living in Alaska, Hawaii, the U.S. Virgin Islands and Puerto Rico will generally need a larger satellite dish, a larger mount and a stronger LNB.

The inside broadband internet satellite dish components will include a coaxial cable jack, coaxial cables, grounding hardware and a modem. If you want the technician to take special cosmetic steps to hide your cables or to route them in a special way, or if your installation is going to be more difficult than the average installation because of the size, shape or layout of your home, then you will be charged extra. Any special services that you will need have to be discussed prior to your technician starting any work.

Become familiarized with the pros and cons of satellite broadband internet access. Learn more about WildBlue, HughesNet, StarBand and mobile internet alternatives. The latest trend in commercial broadband satellite internet is to offer satellite internet customers complimentary satellite internet service for RVs, boats and trucks. Learn how to set up a wireless satellite internet network in a few easy steps.

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