ABSTRACT
In order to help the standardized residency training of nuclear medicine residents, the standardized residency training base of nuclear medicine residents in Peking University People's Hospital, combined with forty-five nuclear medicine departments of teaching hospital, established the WeChat official account of "Standardized Residency Training of Nuclear Medicine" and submitted one teaching case per week. The appearance of the WeChat official account of "Standardized Residency Training of Nuclear Medicine" has made up for the shortcomings of insufficient teaching cases in a single training base, strengthened the training of residents' imaging diagnostic thinking, and promoted mutual learning among the bases. By writing teaching cases, instructors and residents have opened up ideas, increased knowledge, improved self-learning ability, and cultivated imaging diagnostic thinking. With the flexible and practical features of the WeChat official account, the consciousness and sustainability of residents' learning have been enhanced.
ABSTRACT
Objective:To further understand the etiological distribution of fever of unknown origin (FUO) in patients underwent 18F-fluorodeoxyglucose (FDG) PET/CT imaging, and to explore the significance of 18F-FDG PET/CT in the diagnosis of different types of diseases in FUO patients. Methods:From January 2013 to August 2019, the clinical and PET/CT image data of 466 FUO patients (194 males, 272 females, age: 3-91(52.7±20.9) years) in Peking University People′s Hospital were retrospectively analyzed. The etiological distribution of FUO patients was analyzed according to the final clinical diagnosis. PET/CT imaging manifestations were analyzed for different types of diseases in FUO patients. The role of 18F-FDG PET/CT in differential diagnosis for FUO was evaluated through clinical questionnaire. Data were analyzed by using χ2 test. Results:The common disease types in FUO patients were rheumatic and immune disease (48.7%, 227/466), infection (28.5%, 133/466) and malignant tumor (11.2%, 52/466). For PET/CT imaging, 95.5% (445/466) of the patients were positive, of which 313 (70.3%, 313/445) were found to have focal lesions, and the other 132 (29.7%, 132/445) showed only nonspecific abnormal uptake. Lesions in different types of diseases were varied in the location, morphological changes as well as FDG uptake. The results of the questionnaire showed that PET/CT imaging could benefit 95.9% (447/466) of the patients in the FUO diagnosis and treatment. PET/CT reached direct etiological diagnosis of malignant tumors more frequently than other types of diseases ( χ2 values: 14.408-25.466, all P<0.001). PET/CT helped or directly reached the etiological diagnosis of rheumatologic diseases more frequently than infection and unknown cause group( χ2 values: 7.922, 9.647, both P<0.05). Conclusion:18F-FDG PET/CT imaging has high clinical value in the diagnosis of FUO etiology and can provide multilevel diagnostic information.
ABSTRACT
Single nuclear medicine functional imaging (including SPECT and PET) couldn't fully meet the demand of clinical diagnosis because of its own limits, thus the multimodality imaging equipment integrated anatomical and functional images has became the development trend of the nuclear medicine and even the entire medical imaging. Following the earliest SPECT-CT and PET-CT which having been widely used in clinic, the newest PET-MR has also been applied to clinical practice. PET-MR combined MR images with PET function image is substantial to the clinical diagnosis of cerebral nervous system diseases, cardiovascular system diseases and tumor, etc. In this paper, we reviewed the current application situation and prospects of PET-MR in cerebral nervous system diseases.