Diagnostics in Oncology

3x puncte

categorie: Medicina

nota: 9.82

nivel: Facultate

Functional imaging techniques are able to identify diseases much earlier than it is possible through the observation of obvious anatomical changes. Today PET scanners are equipped with multi-detector computer tomographs, thus functional information is merged with anatomical information into a single multi-modality image during a fast imaging session. FDG PET/CT is mainly used in Oncology (approx. [...]
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Functional imaging techniques are able to identify diseases much earlier than it is possible through the observation of obvious anatomical changes. Today PET scanners are equipped with multi-detector computer tomographs, thus functional information is merged with anatomical information into a single multi-modality image during a fast imaging session. FDG PET/CT is mainly used in Oncology (approx.

85-90% of indications), and in lesser extent in neuro-psychiatry (5-10%) and cardiology (~5%). This is due to the fact that most tumor types accumulate more glucose (and hence FDG) than normal cells. In the past years, PET/CT has brought about major changes in oncological diagnostics.FDG PET/CT provides more accurate tumor detection and localization for a variety of cancers, including lung, esophageal, colorectal, breast, cervical, ovarian and head and neck cancer, as well as melanoma and lymphoma.

PET/CT is also an excellent method for early detection of recurrence, that is revealing tumors that may otherwise be obscured by scar tissue remaining after surgery and radiation therapy. It may be also indicated for the earliest possible evaluation of response to therapy. Furthermore it can be used to check the degree of malignancy non-invasively and for the determination of biopsy sites in case of multiple or large lesions. In addition, PET/CT can be useful in localizing occult tumors not identified by any other diagnostic imaging modality.
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