Doctor insights on:
Pet Scan Suv Levels
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Pet scans most often use a radioactive form of glucose, the energy source for most of the cells in our bodies. The pet scanner can detect and measure how much of the radioactive glucose analog, f-18 fdg, is in a particular organ or region. The areas using more glucose are hyper metabolic and generally more worrisome. Our brains and sometimes hearts prefer glucose as food, making ...Read more
PET scan: Pet scans in hospitals use glucose metabolism to measure body function. The majority of pet scans are done to look for cancer growth and recurrence there are markers for Dopamine but these are still largely in preclinical or experimental design stages. Besides, parkinson's disease, work is underway to enable pet scans to diagnose alzheimer's disease as well. Excellent question. ...Read more
A PET scan with contrast shows changes at the molecular level. So, why is it that a lesion larger than 2 cms did not show up at all on a CT?
Had VIP chemo for stage 3 testicular, hCG at 43 tumors are smaller. Pet scan no intense hits. Alphaf normal. Cause for hCG levels higher?
Not an easy situatio: It is hard to assess your complex situation through few lines, but VIP is usually given as a second line chemotherapy for testicular cancer mostly in the salvage setting. Persistent tumor marker is usually a sign of persistent disease and you need a thorough. Evaluation by a GU medical oncologist and preferably in a multidisciplinary setting ...Read more
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 subjectiveness of reading the studies because by looking at this value, one can decide if it is high or low. ...Read more
SUV: Roughly.... Mild uptake is usually SUV 1 – 3, Moderate 3-5, and Intense 6+ ...Read more
GoBackToThePetBox: At your age the thymus is considered a residual organ, kind of like your appendix. Now, there are some theories as to its function later in life (an immune function or whatever), but overall it just sits there. Of course, it's made of living tissue so there will be some"activity"in it & rarely, can develop a tumor or infection. But in your case who knows? The people who ordered the test in the first place ...Read more
Std Uptake Value: Or SUV is a measure of the tumor's metabolic activity. The higher the SUV the more metabolically active the tumor. Metabolic activity often equates with rate of cell division and growth. An SUV of 5.2 is quite high. Values above 2.5 generally are highly suggestive of malignancy. Thanks for trusting HealthTap! ...Read more
No: SUV has no bearing on the aggressiveness of the cancer. It is a relative measure of the glucose metabolism. In fact, some very aggressive tumors have no FDG uptake at all. Some benign conditions like infection can have high uptake. The standard uptake value depends on many factors like patient body size and serum glucose level and the normal uptake in the tissue surrounding the target lesion. ...Read more
PET scan to investigate a Right Hilar enlarged lymph node1.4cmX.9cm Results: residual thymic tissue mild activity SUV 1.5. This normal? I reCT in 4mo
Possibly: SUV of 1.5 is normal to maybe reactive. This makes it very unlikely to be worrisome. The follow up CT should be improved or no change ...Read more
Is it better that the SUV Max on a pet scan is lower than higher? Does this mean the cancer Is less aggressive and less active
What is the highest it can be!
I recently had a Pet Scan. The report indicated my right lung has a hypermetobolic with SUV max 3.0. What doses this mean?
Need investigation: Fast growing (and dividing) cells are designated as hyper metabolic areas in PET scan reading, tumors are also fast dividing fast growing tissue. Speak to your doctor will do further tests and will make sure is not a tumor. Take an appointment without delay for follow up care. ...Read more
Pet scan 3-4mm, suv value of 1, no further evidence of disease, before surgery melanoma 0.8 mm negative sln, blood samples normal, no other signs
A new findin of a liver lesion with 2.8 SUV uptake on pet scan in a colon can patient. Would this b a killed met?
The lowest suv (standardized uptake value — a semiquantitative measure of metabolism) is zero.
The maximum suv in a region of interest is called suv max.
Generally, if the lung nodule is less than a suv max of 1, it is likely benign. However, there are plenty of non-malignant diseases that can have increased FDG uptake, such as healing fungal lung infections, called granulomas. ...Read more
Can nuerontin cause high suv on a pet scan had breast caner 5 years ago, got an ouple of lumps on my nek, took a pet scan, show lymph nodes under arms, groin, chest, foreman of winslow, and others showed high suv, biopsy from under arm was neg. For lymphom
Neurontin (gabapentin) : Neurontin (gabapentin) in very rare circumstances can in fact cause lymphadenopathy (enlarged lymph nodes), but given your history I am very glad that you had a biopsy. Please discuss this carefully with your oncologist given your history. I will wish the best for you. ...Read more
Is this too much in a 2-month period, 1 pet scan, i ct, 6 x-rays, a brain scan now doctors wants another pet. Lung nodule 1.4 -2.7 suv?
Probably not.: I would worry much more about the lung nodule than I would the quantity of scans. ...Read more
What is the question:
Currently pet scans are widely use for evaluation of glucose metabolism in the body.
In oncology, is used to for initial metabolic characterization of tumors, metastases as well as for treatment response and surveillance. In cardiology, pet scans are used to assess heart ischemia and viability and in neurology the study is used to evaluate cognitive disorders, epilepsy and brain tumors ...Read more
Approved for cancer: Pet scan are approved for staging, response assessment and surveillance of certain types of cancers. However, any pathologic process that augments the consumption of glucose (such as infection or inflammation) can be evaluated, though these indications are not currently covered. In addition, pet scans are used to evaluate for brain cognitive disorder, heart ischemia and myocardial viability. ...Read more
Much like a CT:
Pet/ct is a scanner which looks a lot like a ct scanner.
However, pet scans most often use a radioactive form of glucose, the energy source for most of the cells in our bodies. The pet scanner can detect and measure how much of the radioactive glucose analog, f-18 fdg, is in a particular organ or region.
The areas using more glucose are hyper metabolic and generally more concerning. ...Read more
PETs...: Pet scans can be used for a variety of purposes depending on the specific radiotracer used. Most commonly, pets are done with FDG (glucose) for oncologic reasons. Other uses of pet include cardiac pet (viability and perfusion studies) or neurologic pet (for seizure focus mapping or dementia). ...Read more
Blood Flow: A pet/ct with n13 ammonia allows evaluation of the flow of blood in the cardiac vessels, and is useful in determining if a patient would benefit from a more invasive test, called a cardiac angiogram, to better view suspected vessel narrowings (called stenoses) and possibly treat them with angioplasty and stenting. ...Read more
Tricky: Not all cancers are hypermetabolic on pet scans and not all hypermetabolic activity in a pet scan is cancer. Inflammation/infection can also show hypermetabolic activity. Pet scans are performed in conjugation with ct (pet/ct) and though pet is great for detecting metabolism (high sensitivity), its specificity is not as great and also has poor anatomic resolution. Reading a pet requires care/skil. ...Read more
Increased activity: Where it shouldn't be. All organ systems have some metabolic activity, but active organs, such as the heart, kidneys and brain are normally very active. However, the bones, lungs and muscle are not. Various color schemes can be used to detect abnormal uptake. The yellow orange areas show metastatic disease in the liver and bone. ...Read more