Medical imaging technology

Please select one medical imaging technique to share.
Post the following:
1.Name of the medical imaging technology in the subject line
2.A brief summary (min 250 words) about the topic. The summary should include an explanation and history of the technology, details of the applications and/or

treatments, type of diagnosis, description of the procedure during the test, and side effects if any. Minimum two references.
List the minimal qualifications (degree) to work as a technician for your selected technique.