Doctor insights on:
Nuclear Whole Body Bone Scan
If it is included: The drug given goes everywhere in the body, including the brain. How much of the body that is imaged depends on the disease being looked for. For lymphoma, scans start at the base of the brain and end at the upper thighs. For head and neck cancer, the scan is from the top of the head to the upper thighs. Melanoma includes the whole body, and seizures is just of the brain. ...Read moreSee 2 more doctor answers
Bone is a living growing tissue made mostly of collagen (protein that provides soft framework) & the mineral calcium phosphate that adds strength & hardens the framework. Two types of bone are found in the body; cortical (dense compact outer layer) & trabecular (makes up inner layer, ...Read more
Bone abnormalities: Bone scan involves intravenous injection of radio tracer usually technetium 99m mdp which accumulates in skeleton. Scan may involve early phase(5-10 min) and late phase(2-3 hr) imaging. Increased uptake is seen in fractures, tumors, infection, etc. Decreased activity is seen in metal artifacts, aggressive tumor/infection, & loss of blood supply to bones. Bone scan very sensitive but not specific. ...Read moreSee 2 more doctor answers
No iodine bone scan: Nuclear medicine bone scans are performed using a radionuclide called tc 99m mdp. It is a radioactive particle tagged to a molecule involved in bone metabolism. Common exam, around for decades. There is now a new scan using a pet/ct scanner and an isotope sodium flouride. It is sensitive and more accruate but also more expensive and less available. ...Read moreSee 1 more doctor answer
The substances used: in PET are radioactive tracers that accumulate to varying degrees in sites of metabolic activity. Cancers typically have altered/increased metabolic activity relative to normal organs and tend to take up more of the tracer. The radioactivity is detected by the scanner and forms an image which lacks anatomic detail, so it is superimposed over a CT scan, which provides the necessary detail. ...Read more
No: Gallium scanning involves greater irradiation and is non specific for tumor, infection , and bone abnormalities. Low radiation bone scan is specifically for osseous problems such as fractures, metastatic disease to bone, avascular necrosis, some metabolic bone issues, etc.Patient with unknown source of fever or pain and multifocal disease usually helped by bone scan. ...Read more
Both: The actual diagnosis of lymphoma requires tissue, usually excisional biopsy of an entire lymph node. Staging to see where other sites of disease could be is done with a combined PET/CT. The staging used to matter more many years ago when they would often give XRT or do surgery, it doesn't matter as much as it used to because almost everybody gets systemic chemotherapy for both Hodkins and non H ...Read more
Sometimes same dose: Background radiation at sea level: 3 msv per year, denver residents get: 6 msv per year, cross country flight: 0.02 msv, x ray chest: 0.06 msv, ct head: 3 msv, ct chest: 5 msv (equivalent to 100 chest xrays) ct abdomen: 5-10, average bone scan 6.5 msv. Radiation depends on size of patient." radiation affects growing body in children more than adults. Doses to children are much less. ...Read more
Positive, intense uptake on bone scan, lose spinal hardware, bone marrow edema , family history, paternal taking Forteo to strengthen bones. ??ideas?
For one: You probably should remove the hardware. Increased uptake is informing you there is bone activity. You don't state on what phase. This could indicate a fracture or infection.... The doctor should have a clinical suspicion of what he is looking for. If removing the hardware a bone biopsy can be performed if suspecting infection. ...Read more
What does this all mean please? Ct scan 1: "bone window images show a mixed lytic and sclerotic lesion in the body of t9"
Mixed density: This means there is an area in the 9th thoracic body (mid back) which has areas which are lower density (lytic) and higher density (sclerotic) than normal bone at that location. There are many reasons for this appearance. A thoracic spine MRI of this area, probably with and without contrast, may be helpful. ...Read moreSee 1 more doctor answer
Have papillary thyroid cancer. Recent bone scan showed area of concentrated radioactivity on lower leg bone. Cancer too?
Very unlikely: positive bone scan does not mean cancer any recent activity in the bone from recent healing,to a inflammation,to possible infection will cause hot spot on bone scan papillary thyroid cancer is not known to be super aggressive and the chance of metastases to the bone is super rare. check with your doctor most likely it will be something simple ...Read more
Yes: When a whole body pet-ct scan is ordered, it usually includes from the top of the head through the mid-thigh. That being said, the brain is very metabolically active and appears very "hot" on pet, so it is not very sensitive for detecting metastatic disease in the brain. Often, depending on the type of cancer and other factors, the screening may also include a brain mri. ...Read moreSee 2 more doctor answers
Yes: yes unless they use different medicineGet a more detailed answer ›
MRI or bone scan: It may depend on particular early avascular necrosis in hip is best detected by either MRI or bone scan by showing the decreased blood supply. It is quite specific in majority of cases. Ct can detect later changes of avn such as sclerosis of dead bone or fracture of femoral epiphysis. Avn in small bones of hands and feet may be easier detected by mr examination. ...Read moreSee 3 more doctor answers
Yes: Yes.Get a more detailed answer ›
PET scan said:
On FDG images, there is diffuse FDG uptake throughout the left ventricle wall including the septum.
What does that mean?
Need more informatio: You need to give us your medical history and explain the reason for doing a PET scan? Did you have chest pain or suspicion of heart disease?. What did your doctor tell you about the meaning of your PET scan report? FDG uptake is normal for the heart....lack of it might indicate a scar or damage to the heart muscle...but you do not seem to have that problem. ...Read more
PET scan said for sarcoidosis: On FDG images, there is diffuse FDG uptake throughout the left ventricle wall including the septum. What does that mean?
Ask your doc...: FDG-enhanced PET/CT is to show the unusual increase or decrease in glucose metabolism at certain areas of the body especially inside a mass - before or after drug treatment. Based on the features and distribution of FDG imaging enhancement as defined from experience, a diagnosis can be drawn; of course, biopsy is ultimate means for confirmation. So, ask doc - treating or radiologist timely. ...Read more
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