What advantages do PET/CT and MRI imaging techniques have over chest film?
PET (positron emission tomography) scans show changes in certain tissues and/or organs. PET scans can determine the extent of cancer or how the body is responding to treatment. CT scans use a computer to combine multiple x-rays into a two-dimensional cross-sectional image. These images can show the location and extent of the tumor and may indicate any spreading into the lymph nodes. A PET/CT combines both technologies into one scan. It can more accurately determine stage and surgical candidacy. MRI (magnetic resonance imaging) creates a detailed cross-sectional image of the body and may provide greater contrast between normal tissues and tumor. Both of these techniques provide a clearer and more detailed image than a normal chest x-ray.
