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A full-body scan is a scan of the patient's entire body as part of the diagnosis or treatment of illnesses. If computed tomography ( CAT ) scan technology is used, it is known as a full-body CT scan , though many medical imaging technologies can perform full-body scans.
Additional controversy arose after a 2008 New York Times reported that the 2006, pro-CT scan study in the New England Journal of Medicine had been funded indirectly by the parent company of the Liggett Group, a tobacco company. [25] In 2011, the National Lung Screening Trial found that CT screening offers benefits over other screenings. [26]
It has a greater ionizing radiation dose burden than projection radiography; repeated scans must be limited to avoid health effects. CT is based on the same principles as X-ray projections but in this case, the patient is enclosed in a surrounding ring of detectors assigned with 500–1000 scintillation detectors [13] (fourth-generation X-ray ...
Full-body MRI scans have gained popularity after celebs and influencers touted their preventative health benefits. Experts weigh in on the trendy technology.
Similarly, Northwell Health, New York's largest provider, said it is trying to maximize its current supply by "using non-contrast CT, ultrasound and MRI studies when clinically appropriate."
Ryan Brunsing, director of MRI at Stanford Health Care, says he supports whole-body MRI screening “both for its current uses and its potential as MRI technology continues to improve.”
A concern is the potential for CT to contribute to radiation-induced cancer and in 2007 it was estimated that 0.4% of current cancers in the United States were due to CTs performed in the past, and that in the future this figure may rise to 1.5–2% based on historical rates of CT usage. [59]
The risks of CT scan radiation are especially important in patients undergoing recurrent CT scans within a short time span of one to five years. [ 157 ] [ 158 ] [ 159 ] Some experts note that CT scans are known to be "overused," and "there is distressingly little evidence of better health outcomes associated with the current high rate of scans."