What is PET(positron emission tomography)?
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PET (positron emission tomography) is a safe, painless medical imaging technique that uses radiopharmaceticals to assist in visualizing various conditions which alter body metabolism. When undergoing PET imaging, patients receive a radiopharmaceutical prior to imaging. After a relaxation period of approximately one hour (to allow full circulation of the medicine throughout the body) patients undergo the painless, noiseless PET imaging procedure in a device which looks similar to a CT scanner.中国宠物医师网2}J#\Z${ ^Jc:G
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Although various natural compounds such as water and amino acids (the building blocks of protein) can be used in PET imaging, the most common PET imaging procedures utilize a natural sugar compound known as FDG, or fluorodeoxyglucose. To satisfy their increased metabolic rates, many cancers devour these simple sugars at abnormally high rates. By tracking the accumulation of the sugar compound, PET imaging can safely and easily detect areas of cancer that might otherwise go undetected using more common CT or MRI imaging.[:z@y%p:k^w&Y0
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Older imaging techniques such as CT or MRI work by showing anatomic detail of a patient’s body. PET is unique in that it is the only imaging technique that can identify areas of increased metabolic activity—often times identifying evidence of disease before anatomic changes are seen on more traditional imaging studies. In many cases the result will be that PET imaging will provide a more accurate assessment of disease, often changing your physician’s treatment plans to better suit your true condition.!|9Gex1k y+P%?9z0
l3Moeu0Positron Emission Tomography (PET) can be useful in the diagnosis, management and follow up of a variety of conditions, including:中国宠物医师网[7Z0R?4W_
?m*v0o2jS |2f0Cancers such as lung, colorectal, breast, esophageal, pancreatic, testicular, renal, gastric, head and neck, brain, thyroid, ovarian, cervical, lymphoma, multiple myeloma, melanoma, and sarcoma.Brain conditions such as seizures, epilepsy, Parkinson’s, various dementias and cardiac viability studiesS9z\2LEAG2hB0
L/J'X;gQ:uT0PET imaging is an easy and painless procedure; the actual imaging takes about an hour. In order to insure the highest quality PET study, we usually ask our patients to follow some simple dietary guidelines the day prior to their PET imaging. Diabetic patients can discuss their unique diet and medication requirements with Dr. Stobbe by phone to insure their preparations are tailored to suit their individual needs. Pregnant women should not undergo PET imaging until after childbirth; breastfeeding patients can be scanned, but must follow certain post PET imaging breastfeeding guidelines for 24 hours following their test.a_
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What are the clinical applications of PET?中国宠物医师网6mN6u7^j~(r gk
V)FH*Z'WAt+\:M I0The most common applications of PET are in the fields of Oncology, Cardiology, and Neurology. VIK2gc~$f)O0
hmE8b2CX^0Oncology is the most important application of PET and provides vital diagnostic information that can alter the course of cancer treatment and sometimes help in avoiding unwarranted surgery. PET provides critical information about whether a tumor is malignant or not, the extent of cancer, whether it has spread to other organs, monitoring of cancer recurrences, and monitoring the effectiveness of chemotherapy.Vdv{4v@lx0
r F9j-gci f K-f0Cardiology is another important application where PET provides the highest accuracy level of any non-invasive procedure in assessing myocardial viability and diagnosing coronary artery disease.中国宠物医师网3~1qK#C9jVZ
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For neurology, PET provides the most accurate information to localize the areas of the brain causing epileptic seizures and to determine if surgery is an option..M n-Ut1_ bH[0
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+IK Pn7u \0Open Design: Increases patient acceptance and comfort. Provides easy access to the patient during the exam.5kO.@,B mAm|0
MccI*zG3z0Separation of PET and CT components: Enables the use of the multi-slice CT component as a fully-featured diagnostic tomography system. Facilitates use of advanced clinical CT applications such as CT Angiography, Virtual endoscopy, lung nodule assessment and cardiac scoring.$S#|n ~.BCJ0
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GSO/Pixelar technology: Provides exceptional image quality and throughput significantly reducing scan times.中国宠物医师网 |M[z| `*vI-VvP
U` d? @?w/o!E#w0Syntegra: Syntegra image fusion provides an integrated display, review, registration and中国宠物医师网 BV AN;Nz
fX0VO$t7j*kI6_q8m0communication environment from a single workstation. This integration makes multi-modality fusion fast, accurate and easy for workflow efficiency previously unattainable. Syntegra will have direct connectivity with the pinnacle radiation therapy system in our Cancer Center improving accuracy in determining the therapy field and minimizing radiation to normal tissue.中国宠物医师网5r0V'DT+N;lt
