Ma Yunchuan, Secretary General of the Nuclear Medicine Branch of the Chinese Medical Association, introduced at the launching ceremony of the "2007 China Nuclear Medicine Week and Shijingshan Science and Technology Week" that nuclear medicine examination can find it in the early stage when the tumor is very hidden. ".
Ma Yunchuan said that each disease will go through the development process from genetic mutations to metabolic abnormalities to morphological changes. Traditional X-ray film, ultrasound, CT and other examination methods are mostly found in the stage of disease to "morphological change" stage, at this time most patients are already in advanced stage of cancer.
The PET and PET / CT in nuclear medicine examination can more accurately reflect the normal or abnormal physiological and metabolic activities of the human body, and reflect the pathological and physiological changes of the human body at the molecular level, which significantly improves the accuracy of tumor diagnosis and the reasonable treatment plan. Sex.
Ma Yunchuan introduced that tumor cells have a fast growth rate, strong metabolism, and strong proliferation. In the early stage of cancer, when cancer cells have not formed obvious tumors in the human body, their metabolic level can be significantly higher than normal cells. PET and PET / CT imaging is to inject a "tumor probe" into the human body to obtain a "transparent person" that displays the metabolism and shape of various organs of the human body in three dimensions. Various lesions can be seen by doctors at a glance. The tumor tissue is a "bright spot" in the image, and it is easy to find with the naked eye. It can be found at an early stage when the tumor is very concealed, enabling early detection, early diagnosis and early treatment of cancer.
Ma Yunchuan pointed out that PET and PET / CT can achieve the "four fixed" goals of tumor diagnosis: positioning, finding lesions and clarifying the location of the lesion; qualitatively, clearly showing the benign and malignant qualities; quantitatively, quantifying the morphology and function of the disease or lesion Changes; regularly, determine the stage of development of the disease.
"2007 China Nuclear Medicine Week and Shijingshan Science and Technology Week" was held in Beijing. Experts in nuclear medicine departments such as Peking Union Medical College Hospital and Xuanwu Hospital will introduce nuclear medicine to the public and clinicians in non-nuclear medicine in detail during the Science and Technology Week.
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