Certified radiology technician

Certified-radiology-technician Certified radiology technicians are those who are conversant with different imaging technologies. Different types of imaging technologies include x-ray, CT scan, MRI, ultrasound and nuclear medicine. X-ray is the oldest imaging technology which is still in use. A technician works closely with the physician in taking the images and processing them. A technician works in hospitals, clinics and colleges. He is proficient on the basics of all the radiology technologies. X-ray is the process of obtaining images from a particular organ and checking for abnormalities. High density structures does not absorb much radiation therefore air and fat appear black, bone metal and calcium appear white in color and other tissues appear grey in color depending on the density.

There are many views in which the image can be taken like the PA, AP lateral and oblique views which is decided by the physician. Sometimes contrast media are injected in the patient’s body for differentiating between the soft tissues or organ densities and event to detect the abnormalities. X-rays are not capable of taking real time images. Real time images can be taken with the help of CT scan. CT scan is a combination of x-rays, computers and detectors. The x-rays in the CT scan emit very thin rays through the organ and the rays strike the detectors instead of film and converted into cross sectional images with the help of software.

Magnetic Resonance Imaging is a better technology when compared to the CT scans. MRI is involved with imaging the protons specifically hydrogen. Fat contains many hydrogen atoms so it appears bright whereas bones have little hydrogen content so it appears to be black. It magnifies any changes in the soft tissue with good contrast. It gives a good view of rotate cuff tears, meniscus tears and soft tissue imaging. Gadolinium crates good contrast in tissues which is good for tumors and stroke.

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