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A 46-year-old member asked:

what is suv on a pet scan?

3 doctor answers9 doctors weighed in
Dr. Maureen Nash
Geriatric Psychiatry 24 years experience
A measure: Standardized uptake value. There are a normal range of suvs for various organs and too low of a range and too high of a range.
Dr. Akiva Mintz
Nuclear Medicine 17 years experience
StandardUptakeValue: Suv simply stands for standard uptake value of a certain area on a scan (lesion, lymph node, etc). This is typically used to standardize pet scans between institutions and physicians. Studies show that maximum suvs of certain lesions are more indicative of cancer. This takes out some of the subjectiveness of reading the studies because by looking at this value, one can decide if it is high or low.
Dr. Guido Davidzon
Nuclear Medicine 18 years experience
Tracer uptake: Standardized uptake value is the measured activity normalized for body weight/surface area and injected dose. In an fdg-pet scan tissues that have high suv value (usually above 30% of liver background) are indicative of an underlying process where glucose is being consumed at a higher rate than normal (e.g. Cancer or inflammation).

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A 30-year-old member asked:

Are suv on pet scan gamma?

2 doctor answers2 doctors weighed in
Dr. Mazen Ghani
Radiology 24 years experience
suv: Suv on a pet scan is the unit of measurement that allows one to evaluate how much metabolism is in a particular area of the body.
United Kingdom
A 34-year-old female asked:

On a pet scan is SUV 5.2 high? Very high or average ?

3 doctor answers4 doctors weighed in
Dr. Shaym Puppala
Internal Medicine 25 years experience
PET scans: PET scans measure the uptake of a labeled sugar by cells (SUV = standardized uptake value). Generally, above 2.5 is considered high. I cannot comment on high vs very high. High SUV can occur in cancer, but also in active inflammation and some other ailments. Therefore, what an abnormal PET scan means depends on the clinical situation/whole picture; best not to interpret the results yourself.
Dr. Saptarshi Bandyopadhyay
Hospital-based practice 21 years experience
The RELATIVE value of the SUV (compared to "normal" body areas) is important - does an area "light up" on PET? But, "it has been demonstrated that... SUV thresholds, wherein a nodule or mass is characterized as benign or malignant, is often invalid". So, many benign infectious/inflammatory processes will have high SUV whereas indolent tumors will have low SUV. Search PMC 3026294 in Natl Lib of Med
Dec 31, 2014

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