PET/MRI Study on the Effects of Psychosocial on Fat and Muscle Metabolism for Malignant Tumor Patient After Comprehensive Treatment.

False positives for Brown Fat & Muscle（F&M） always affect the evaluation of metabolic disease treatment. Recently, using PET/CT，international journals such as Journal of Nuclear Medicine reported that the amount of active brown fat was correlated with renal creatinine clearance and subject to regulation by atrial natriuretic peptide in addition to association of season and temperature. At present，studies based on PET/CT have shown that elimination of the above factors, brown fat(even muscle) will still appear false positive metabolism in tumor patients. In view of the basis of Positron emission computed tomography/Magnetic resonance (PET/MRI) brain function research，our team speculate that it may be related to psychological or cortex metabolism. And there is a lack of studies on the correlation between the psychosocial，cortex structure and metabolism. Therefore, it suggests that，combination of structure and metabolism，PET/MRI will play a role in studying the effects of psychological on F&M false-positive metabolism in malignant patients. In this project, the investigators intend to observe the changes of F&M metabolism with psychological and cortex metabolism after comprehensive treatment in malignant patient by combining PET/MRI. The relationship between F&M metabolism and psychological will be deeply analyzed to provide scientific basis for the development of the differential diagnosis and assessment.