Post by masders on Feb 15, 2024 9:31:59 GMT
A bone scan is a specialized nuclear medicine procedure for identifying areas of metabolic bone changes. Dr. Liljana Muratovska, specialist in nuclear medicine, explains that through this examination the metabolic aspects of bones or bone remodeling are presented, which cannot be detected by other techniques. How is it performed? Initially, a small amount of radiopharmaceutical preparation, which is not harmful to health, is injected intravenously into the patient. The patient is then scanned using a spectrum gamma camera. The radionuclide emits a type of radiation known as gamma radiation. Two-dimensional projections are done, in order to look at small lesions (less than 1cm) especially in the spine, and single-photon emission computed tomography (SPECT) is also done.
Filming, or imaging, is performed 2-3 hours after the injection and lasts about 30-60 minutes, depending on whether SPECT images are taken, sometimes subsequent filming is also necessary. About half of the radioactive material is located in the bones. Parts of the body in which the Moldova Email List radionuclide accumulates more are seen as "hot spots" and may indicate conditions such as malignant bone tumors, secondary metastatic bone lesions, bone infections or inflammations, trauma, etc. . Other changes may cause reduced accumulation of radioactive material or "cooling" effects of photopenic defects. About half of the radioactive material is excreted in the urine. Where can it be used? The most common indication areas are oncology and orthopedics. In orthopedics, it is used to indicate bone trauma, sports injuries, identification of bone infarction, loosening and infection of joint prostheses (joints), avascular necrosis, osteoid osteoma, etc.
In oncology, it is used for localization of primary malignant bone tumors, identification of metastases in bones, assessment of response to therapy. Bone scan to detect skeletal metastases Bone scanning is mainly used in oncology to detect bone metastases. Such bone changes can be detected by scintigraphy much earlier compared to any other diagnostic method, and metastases are detected throughout the skeleton. Because cancer cells spread so quickly, they appear as dark areas on the scan. This has to do with increased bone metabolism and bone building in the area of cancer cells. Bone scans can also be used to follow cancer before and after treatment, in order to assess the effect of treatment. Tumors that metastasize more to the bones are: prostate, breast, kidney, thyroid gland and lung cancer (Pb KeTtLe - prostate, breast, kidney, thyroid, lung).
Filming, or imaging, is performed 2-3 hours after the injection and lasts about 30-60 minutes, depending on whether SPECT images are taken, sometimes subsequent filming is also necessary. About half of the radioactive material is located in the bones. Parts of the body in which the Moldova Email List radionuclide accumulates more are seen as "hot spots" and may indicate conditions such as malignant bone tumors, secondary metastatic bone lesions, bone infections or inflammations, trauma, etc. . Other changes may cause reduced accumulation of radioactive material or "cooling" effects of photopenic defects. About half of the radioactive material is excreted in the urine. Where can it be used? The most common indication areas are oncology and orthopedics. In orthopedics, it is used to indicate bone trauma, sports injuries, identification of bone infarction, loosening and infection of joint prostheses (joints), avascular necrosis, osteoid osteoma, etc.
In oncology, it is used for localization of primary malignant bone tumors, identification of metastases in bones, assessment of response to therapy. Bone scan to detect skeletal metastases Bone scanning is mainly used in oncology to detect bone metastases. Such bone changes can be detected by scintigraphy much earlier compared to any other diagnostic method, and metastases are detected throughout the skeleton. Because cancer cells spread so quickly, they appear as dark areas on the scan. This has to do with increased bone metabolism and bone building in the area of cancer cells. Bone scans can also be used to follow cancer before and after treatment, in order to assess the effect of treatment. Tumors that metastasize more to the bones are: prostate, breast, kidney, thyroid gland and lung cancer (Pb KeTtLe - prostate, breast, kidney, thyroid, lung).