Different Cardiac-capable Magnet Types
CMR scanners require modern electronics. 'Open' magnets are not so good for cardiac scanning as they do not cope with the beating heart very well. There are two magnet strengths mainly in use in CMR - 1.5 tesla and 3 tesla. The 3 tesla can potentially double the amount of information acquired in a scan. It offers particular advantages for perfusion. The downsides of 3 tesla are cost, energy usage requirements, and potentially artifacts degrading the pictures.
In some cases it is possible to update or refurbish a 1.5 tesla scanner to produce CMR images of clinical/diagnostic value equal or exceeding that which is available from 3 tesla scanners.
Current manufacturers of cardiac-capable MRI scanners include Philips, Siemens, Hitachi, Toshiba, GE.
Read more about this topic: Cardiac Magnetic Resonance Imaging
Famous quotes containing the words magnet and/or types:
“Yes, but I do not travel to find comfortable, rich, and hospitable people, or clear sky, or ingots that cost too much. But if there were any magnet that would point to the countries and houses where are the persons who are intrinsically rich and powerful, I would sell all, and buy it, and put myself on the road to-day.”
—Ralph Waldo Emerson (1803–1882)
“... there are two types of happiness and I have chosen that of the murderers. For I am happy. There was a time when I thought I had reached the limit of distress. Beyond that limit, there is a sterile and magnificent happiness.”
—Albert Camus (1913–1960)