Doctor insights on:
Pet Scan Side Effects
Low Risk - Headache:
Florbetapir f18 (trade name amyvid) is a new pet imaging agent that helps to diagnose alzheimer's disease.
From the clinical trials, side effects (also called adverse reactions) were quite unusual, with no serious ones. The most common side effect was headache, occurring in 1.8% of the patients. Next was musculoskeletal pain (0.8%), followed by nausea and fatigue (each at 0.6%). ...Read more
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
3cm nodule on rt lung hilerregion? Pet scan this am, can scan cause cancer & what are side effects? I'm scared to have cancer &nodule in lowerlft lung!
PET scan is the answ:
PET scan is a safe test. It is the best test to find out if the nodule in your lung is benign (no PET uptake) or Cancerous (increased PET update also called Hot scan.
Your doctor will guide you according to the results of your PET scan. Let us know the result when available. ...Read more
How sensitive is pet scan in detecting metastatic clear cell renal cancer, irrespective of screening guidelines (uiss/nccn), side effects, cost?
What would cause what appears to be telangiectasias to form on the skin after having a cardiac PET scan/stress test? Is this a common side effect?
Lost about 50 pounds and have tenderness on right side and small lump. Doctor ordered pet scan also said it looks like cancer thank you in advance
Complete the workup:
Get the pet scan and any other labs and tests your health care provider thinks are necessary.
Unexplained weight loss is a sign of cancer. Lumps and tenderness need to be explained too.
Get all the information possible, perhaps including a biopsy, so a proper plan of action can be determined. ...Read more
My husband has a melanoma on the right side of his stomach. Blood work, X-ray and pet scan are normal. Does that mean it is not nessery for a node biopsy?
Got results for PET scan on lung nodules. Nodules are "undetermined" cuz of size but parotid glands on both side of neck showed "hot". Any relation?
What is the question:
Currently pet scans are widely use for evaluation of glucose metabolism in the body.
In oncology, is use to for initial metabolic characterization of tumors, metastases as well as for treatment response and surveillance. In cardiology, pet scans are use to assess heart ischemia and viability and in neurology the study is use to evaluate cognitive disorders, epilepsy and brain tumors ...Read more
Positron Emission: These studies are done by injecting a special "dye" that is attached to a specific molecule. Most of the pet today is done using FDG (a glucose/sugar look-a-like molecule). Wherever this molecule is used/concentrated, the pet scan is brighter. Hence, tumors/infections (which use a lot of energy/sugar/fdg) are bright on such studies. More: http://en. Wikipedia. Org/wiki/positron_emission_tomography. ...Read more
Probably: I would not recommend a child or pregnant woman be the companion. The amount of radiation dose is minimal to caretaker as long as has usual distance of 3.5 feet from patient. Study involves injection of isotope and sitting in quiet room for about 45 minutes. Then pet ct scan performed possibly for another half hour. Typical dose would be about 0.13 msv. Round-trip flight from new york to tokyo 0.13msv. ...Read more
Depends: Depends on what you are looking for. PET scan usually uses a glucose based tracer to evaluate metabolic activity which can be increased in tumors. All modalities have a certain rate of false positives and negatives. Sometimes multiple modalities can each give you different information to obtain a complete evaluation. ...Read more
Physiology of lesion: 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 it hard to see. ...Read more
Depends: Radiation received from pet ct is relatively high compared to other imaging tests. Pet ct is mainly used for demonstrating metastatic disease, making decisions about effect of therapy, and looking for recurrence. Pet ct has helped prolong life because it can detect small lesions not seen by other tests. Wise decision should be made judging radiation risk versus positive benefit to the patient. ...Read more
Anatomy vs Physiolog:
Mri and ct look at the structure of the body, the anatomy, and the way diseases change or distort it.
Pet looks at the physiology, or how the body uses, or metabolizes something. For pet, the most common metabolism pathway looked at is how glucose is used. A low dose ct is often acquired at the same time as the pet (as in pet/ct scan), to correlate the pet findings with the ct anatomy. ...Read more
Fluorine 18: F18.Get a more detailed answer ›
No..: Not known to....Get a more detailed answer ›
Why PET?: Pet very valuable study to assess metabolic dysfnctn areas in brain due to many causes, and now we can inject newer chemicals to assess both alzheimer's and parkinson's, but really rather un-necessary and expensive test for stroke, as visualization readily available on an mri. ...Read more