Magnetization Transfer MRI Can Help In Diagnosis
Magnetic resonance imaging (MRI) is a medical technique used to produce visualizes medical imaging that helps doctor to see the internal organs of patient. MRI scanner reads the soft tissue and produces an image, but these images are not so clear and forms black area. Lack of clear images was a major draw back of this technique. Now with recent advancement in techniques and uses of Magnetization Transfer MRI has increased the contrast of imaging to a great extent.
The MRI was first invented by Dr. Raymond V. Damadian in 1971 and then collaborated with Dr. Larry Minkoff and Dr. Michael Goldsmith, expanding MRI technology and finally dedicated this pioneer technique to physician. MRI is found to be best suited for scanning soft tissue. It works on the principal magnetic resonance imaging technology, where a radio frequency electromagnetic field is created to detect and create imaging of particular part of body. Most importantly they emit no radiation and hence an added advantage over CT scans. As the MRI technology continues to improve it may replace X-ray and CT scan.
The Magnetization transfer is a method of increasing the contrast of images produce by MRI. It works by removing a portion of the total signal in tissue. An off resonance radio frequency pulse saturates macromolecular protons to make them invisible. The MRI signal from semi-solid tissue like brain parenchyma is reduced, and the signal from a more fluid component like blood is retained. The method also has some draw backs, it has no effects on tissues that do not contain proton bound proteins or macromolecules.