Archive for November, 2008

The Affordability of Medical Imaging Parts

Thursday, November 6th, 2008

If you are a biomedical engineering technician, you may have responsibility for locating and purchasing medical imaging parts for the biomedical equipment that you are responsible to maintain. As you already know, there are dozens and possibly hundreds of suppliers of medical imaging parts available to choose from. But how is the cost a vital factor in choosing a medical imaging parts supplier?

Cost is not a straightforward issue. If you search for the lowest cost, you may find yourself with medical imaging parts that are inferior in quality. However, you certainly don’t want to get burned by paying premium prices if you don’t have to. There are two considerations you can make. First, is the medical imaging part inherently complex so that you should apply a “get what you pay for” principle and buy premium? Or, is the part rather simple so that the “plain vanilla” low cost version will do. Second, is the amount of money you will need to spend significant enough to warrant the work? Look at the range of prices in the marketplace. If there is a general range, that probably means that you will be paying about the same price everywhere, so go ahead and buy the medical imaging part based on other criteria. If there are dramatic highs and lows, you need to understand why these differences exist. For example, is the low priced supplier able to keep his overhead so low that everything is a bargain? Great! Or is he selling inferior product?

For the raging medical imaging equipment and parts cost, it is indeed wise to research the market, compare from suppliers and study how you can get an affordable yet equally high-grade medical imaging supplies.

Fe8 – Breakthrough for Medical Imaging

Tuesday, November 4th, 2008

Florida State University researcher Naresh Dalal and other researchers have developed a magnetic molecule identified as “Fe8″ which contains all of the preferred attributes. This single molecule magnet has eight ion bonds, is water-soluble and non-toxic.

Recently published papers describe testing completed on the molecule which shows that Fe8 provides good contract in non-clinical MRI studies over a specific range of concentrations, dispelling an earlier confusion about the value of Fe8 in medical imaging. The earlier research had resulted in conflicting results because the concentration of Fe8 had not been accounted for during testing.

These advances are due in part to advances in the field of nanotechnology. Nanotechnology involves working with particles that are one billionth of a meter thick. The techniques that are available to measure and manipulate such small particles of matter will support additional research on materials such as FE8. Researchers are hoping that these newer medical imaging contrast media will be able to be manipulated for even greater benefit than this initial research suggests. For example, researchers are seeking ways to “turn on” and “turn off” the medical imaging contrast qualities by synthesizing contrast media that binds only to certain other molecules or does so only when subject to specific conditions that can be monitored and managed.

Although this breakthrough in contrast media for medical imaging is extremely promising and may well provide a great leap forward in the quality of magnetic resonance imaging, there is still a great deal of testing and research to be accomplished before Fe8 can be made available for use in human population medical imaging studies.

Quest for MRI Contrast Material

Sunday, November 2nd, 2008

Magnetic resonance imaging, one of the most important medical imaging advances in disease detection, relies on the injection of contrast material to highlight specific tissue or to distinguish between healthy and diseased tissue. The materials used in this medical imaging procedure tend to have the drawback of being either simply constructed and managed within the body but offering low contract or more complex in construction, offering sharper medical imaging contrast but with less stability when injected.

The National Institute of Standards and Technology has been collaborating with researchers at Florida State University and the University of Colorado at Boulder to create new medical imaging contrast materials that are highly magnetic, highly uniform (and thereby easier to manage) and very small. This combination of attributes will work together to create a very safe, very predictable, highly effective contract solution for use in medical imaging.