What PET-CT? What's the difference between ultrasound and CT? Can PET-CT diagnose systemic tumors?

PET-CT combines CT and PET to provide accurate anatomical location of lesions, while PET provides detailed molecular information such as function and metabolism of lesions, which is sensitive, accurate, specific and accurate. One imaging can obtain cross-sectional images of all parts of the whole body, and can clearly understand the overall situation of the whole body, so as to achieve the purpose of early detection of lesions and diagnosis of diseases. The appearance of PET-CT is another revolution in medical imaging, which has been recognized and widely concerned by the medical community.

PET/CT is the highest-end medical imaging diagnostic equipment in the world at present, and it can be called "the crown of modern medical high technology".

The full name of PET is positron emission computed tomography. It is the most advanced medical imaging technology, and PET technology is the only technology for imaging function, metabolism and receptors in anatomical form, which has the characteristics of non-trauma. It is one of the best clinical methods to diagnose and guide tumor treatment. (The above is from Baidu Encyclopedia)

Simply put, functional imaging and anatomical imaging work at the same time and refer to each other to diagnose diseases. Of course, the whole body diagnosis can refer to the following figure.

This is only the upper body.

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