Objective  To investigate the basic situation of nuclear medicine diagnosis and treatment in Tianjin, analyze its distribution characteristics, and understand the development of nuclear medicine in Tianjin.

Methods Questionnaire survey and spot inspection were used to investigate the basic situation of nuclear medicine diagnosis and treatment institutions of Tianjin in 2022, the number of personnel, equipment, protection resources and the frequency of nuclear medicine diagnosis and treatment. The Kruskal-Wallis H test was used to compare the differences in the allocation of nuclear medicine equipment, radiation workers and radiation protective equipment resources in different regions .

Results In 2022, A total of 18 radiation diagnosis and treatment institutions in Tianjin carried out nuclear medicine work, and 224 radiation workers in nuclear medicine department; There were 8 positron imaging (PET) devices, 15 single photon emission tomography (SPECT) devices, and 3 cyclotrons in total. The number of nuclear medicine equipment per million population in Binhai New Area was the highest, followed by the central city and suburban areas, which were 2.97, 1.03 and 0.78 units per million population, respectively, and the difference was not statistically significant (χ²=3.13, P=0.21). The number of nuclear medicine radiation workers per million population was similar in the central urban area and Binhai New area, and the lowest in suburban area (12.84, 12.38 and 3.12 per million population, respectively), the difference was not statistically significant (χ²=3.71, P=0.16). The radiation protection resources of each radiological diagnosis and treatment institution in the central urban area and Binhai New Area were higher than those in the suburban area, but the difference was not statistically significant (χ²=1.70, P=0.42). In the whole year, 106655 cases of nuclear medicine diagnosis and 10896 cases of nuclear medicine treatment were performed in radiation diagnosis and treatment institutions in the city, with an average frequency of 5.03 cases per 1 000 population.

Conclusions The development of nuclear medicine diagnosis and treatment resources in Tianjin is rapid, but the allocation of nuclear medicine diagnosis and treatment resources among different regions is not balanced, and it is necessary to further strengthen the construction of nuclear medicine diagnosis and treatment.