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Objective:To study the healthcare level (HCL) in China and its influencing factors.Methods:By using the data reported in the China statistical yearbook published by the National Bureau of Statistics and in other public literature, HCL was calculated in terms of the number of population and physicians in the whole country and various provinces. Multiple regression was used to analyze the relationship between HCL and regional population, area, number of administrative divisions and gross domestic product (GDP). Pearson correlation analysis was applied to analyze the relationship between healthcare level and medical radiation frequency. Results:Since 2015, Chinese HCL value was lower than 1 000, but there were two provinces with HCL value greater than 1 000 in 2019. Population and GDP were the influencing factors for the HCL, with correlation coefficients of 0.416 and -0.583, respectively. There was a correlation between HCL and medical exposure frequency of Chinese population( r= -0.620, P=0.028). Conclusions:Chinese HCL value was 542 in 2020, but there has been great differences between various provinces. HCL as an indicator of medical exposure assessment needs further research in China.
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@#<b>Objective</b> To obtain the medical exposure frequency data of residents through a questionnaire survey on mobile phone networks in the community, and to analyze the main influencing factors. <b>Methods</b> A snowball sampling method was used to expand the sampling from medical staff in a county hospital to the community. The questionnaire included personal information such as occupation category, type of medical insurance, and education level as well as basic radiation-related knowledge and medical exposure type and frequency of respondents received in 2021. A logistic regression model was used to analyze the influencing factors of medical exposure. <b>Results</b> A total of 223 respondents were investigated, and 12.56% of them received radiological diagnosis and radiotherapy in 2021. The proportion of males receiving medical exposure was significantly higher than that of females (19.64% <i>vs</i> 10.18%). The likelihood of the person receiving medical exposure increased considerably with age, with the proportion of residents receiving medical exposure at 20, 30, 40, and 50 years of age being 6.25%, 7.95%, 19.23%, and 33.33%, respectively. Of persons who received medical exposure, 57.14% underwent CT scans. Persons participating in the new rural cooperative medical system were likely less to receive radiological diagnosis and radiotherapy than urban workers and residents (<i>OR</i> = 0.55, <i>CI</i>:0.13-2.23, <i>P</i> > 0.05). <b>Conclusion</b> Questionnaire survey in the community can obtain more information about the medical exposure of residents, and age and type of medical insurance are important factors affecting the frequency of medical exposure.
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@#<b>Objective</b> To investigate the current status of application of resources on medical exposure in Dongying, China, and to provide fundamental data for setting up the health information management system of occupational radiation diseases and implementing health supervision and management strategies. <b>Methods</b> According to the requirements of monitoring program on radiation health of Dongying in 2021, a general survey was carried out in all medical institutions (other than dental clinics) providing radiodiagnosis and radiotherapy services by the field investigation method using the unified questionnaires and survey content, and a descriptive analysis was conducted on the results. <b>Results</b> There were 92 institutions of radiodiagnosis and radiotherapy in Dongying, 1112 radiation workers who accounted for 5.9% of all workers on duty, including 679 (61.1%) males and 433 (38.9%) females, and 364 pieces of radiation equipment, including 339 for X-ray diagnosis, 8 for radiotherapy, 2 for nuclear medicine, and 15 for interventional radiology. The allocation of personal protective equipment for interventional radiology staff in tertiary hospitals was higher than that in secondary hospitals, in which there were 0.36 and 0.23 pieces of lead-rubber aprons, 0.43 and 0.30 pieces of lead-rubber hats, 0.50 and 0.35 pieces of lead-rubber collars, 0.05 and 0 pairs of lead-rubber gloves, and 0.31 and 0.17 pairs of lead protection glasses per capita, respectively. The allocation rates of lead-rubber collars and lead protection glasses in the nuclear medicine staff were higher than those in the interventional radiology staff, with 0.63 collars and 0.88 pairs per capita, respectively. The annual frequency of medical exposure was calculated to be 864.3 person-times per 1000 population for radiodiagnosis and 5.2 patients per 1000 population for radiotherapy. <b>Conclusion</b> The allocation and application of resources on medical exposure in Dongying is unbalanced, so it is demanded to set up a health information management system of occupational radiation diseases for continuously mastering the application of medical exposure and adopting differentiated regulatory measures such as rating classification in Dongying.
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Objective To investigate the basic situation of radiodiagnosis and radiotherapy institutions and the frequency of medical exposure in Fangshan District, Beijing, China. Methods A general survey using the questionnaire was conducted online to obtain the basic situation of the radiodiagnosis and radiotherapy institutions, the number of people in each type of radiodiagnosis and radiotherapy project, and the number of the usually resident population in the whole district in 2019, thus obtaining the frequency of medical exposure in each type of radiodiagnosis and radiotherapy project. Results There were 60 radiodiagnosis and radiotherapy institutions, 565 radiology staff, and 199 sets of radiodiagnosis and radiotherapy equipment in the whole district in 2019. The frequency of medical exposure was 521.29 per 1000 people, among which conventional medical diagnostic X-ray workers accounted for 301.79 per 1000 people (57.89%) and computed tomography workers accounted for 207.56 per 1000 people (39.82%). The number of tertiary hospitals accounted for 6.67% of the radiodiagnosis and radiotherapy institutions, and the number of people exposed tomedical radiation in tertiary hospitals accounted for 52.25% of the total. The number of secondary hospitals accounted for 5.00% of the radiodiagnosis and radiotherapy institutions, and the number of people exposed to medical radiation in secondary hospitals accounted for 27.83% of the total. Conclusion The distribution of medical exposure in Fangshan District is uneven. The radiodiagnosis and radiotherapy technology used is relatively single. Relevant departments should strengthen macroscopic readjustment and control, and formulate reasonable policies, so as to rationally allocate and effectively utilize medical and health resources.
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Objective:To develop and test a software which can get and count the medical exposure frequency automatically.Methods:This study was based on the investigation of the frequency of radiodiagnostic medical procedures in China over the past by reference to the experience gained from the Electronic Medical Record Sharing and Reporting System in Beijing. The core elements for collecting the number of medical procedures and radiodiagnostic categories were determined. The collection process was then designed and the collection program software was written in a way for deployment on the front-end computer system of a general hospital for trial.Results:The field table to collect the number of medical procedures and the corresponding data structure were generated, and the data collection and statistics of the above fields were realized based on the survey data of DR and CT diagnostic examination frequency in a hospital in 2021. It took 15 s on average, and the statistical result are consistent with the manual statistical result using RIS source table.Conclusions:The software can realize the automatic acquisition and reporting of the number of radiodiagnostic medical procedures in hospital on a regular basis, which is worth promoting.
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Objective:To investigate the current status of the radiodiagnosis and radiotherapy resources and medical exposure frequencies in Huai′an City.Methods:According to the monitoring data in the " Radiological Health Information Management Platform of Jiangsu Province" in 2020, a descriptive analysis was conducted on the personnel, equipment, and exposure frequencies in the institutes engaged in radiation-based diagnosis and treatment in Huai′an.Results:A total of 181 hospitals were investigated in 2020, including 7 tertiary hospitals(3.9%), 24 secondary hospitals(13.3%), 126 primary hospitals(69.6%), and 24 ungraded hospitals(13.3%). There were 1 397 radiation workers, including 948 males and 449 females, and 459 pieces of radiation equipment, including 420 for radio diagnosis, 13 for radiotherapy, 4 for nuclear medicine, and 22 for interventional radiology. The hospitals of different grades greatly differed in the number of radiation workers and equipment. There were 80.1, 20.9, 2.2, and 2.0 radiation workers and 15.7, 5.5, 1.4, and 1.6 pieces of radiation equipment in the tertiary hospitals, secondary hospitals, primary hospitals, and ungraded hospitals, respectively on average. There were 2 903 246, 27 648, 8 087, and 17 874 receiving radiodiagnosis, radiotherapy, nuclear medicine, and interventional radiology, respectively in 2020. The medical exposure frequencies in the whole city were calculated to be 599.50 per 1 000 population, including 334.59 treated with conventional X-rays, 239.82 receiving CT scan, 14.18 for breast and dentistry, 3.62 receiving interventional radiology, 5.61 treated with radiotherapy, and 1.69 receiving nuclear medicine.Conclusions:The radiodiagnosis and radiotherapy resources are unbalanced in the hospitals of different grades in Huai′an City. Therefore, it is necessary to pay more attention to the reasonable allocation of medical resources. Meanwhile, radiation workers in secondary hospitals may be more prone to job burnout. Facing the normalization of the prevention and control of COVID-19 epidemic, the supervision and management of radiological health should be strengthened to ensure the legitimacy of radiological diagnosis and radiotherapy and theoptimization of protection. The frequencies of medical exposure are consistent with the local economic level. To analyze the differences in medical exposure frequencies and predict the developmental trends in different regions, it is necessary to establish a more accurate prediction model.
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Objective To assess the medical radiation exposure frequency and find out the main factors related to the collective dose derived from X-ray diagnosis procedures. Methods A survey of 3 178 hospitals was conducted to collect the basic information such as types of medical radiation, allocation of radiological diagnosis and treatment devices, the frequency of radiologic examinations, etc. By using a stratified sampling method，36 hospital were selected and more specific details, including 26 types of diagnostic radiologic examinations, were collected to estimate the collective dose to the population in Hubei, combining with the previous literature. Results A total number of 6 843 radiological diagnosis and treatment devices were covered and 33 771 855 medical radiologic procedures were counted in this survey. The result showed a annual frequency of 569.79 examinations per 1 000 population for all types of procedures. A large variation was revealed among different areas and the highest area was with a 4-fold frequency of the lowest area. Although tertiary hospitals accounted for 4.40% of the total hospitals, 48.42% procedures were carried out in them. The collective effective dose from X-ray diagnosis in Hubei was 65 399.55man·Sv, and the average annual effective dose was 1.10mSv, while contribution from CT scans accounted for 86.90% of the dose. Conclusion The frequency of medical radiologic procedures presented a consistent increase in Hubei province, with a uneven development among hospitals from urban and rural areas, or from different regions, or from different levels. Among all types of X-ray examinations, CT scan frequency had the fastest growth rate and accounted for the major annual collective effective dose. In order to reduce the health risk from medical radiologic exposure, CT scan need to be applied more properly and the radiation dose per single CT scan need to be limited to a reasonable level.
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RESUMEN: Las exposiciones médicas con radiación ionizante son actualmente la principal fuente de exposición a la radiación artificial a nivel global, entre ellas, los exámenes dentales corresponden a uno de los más frecuentes. Para prevenir dosis innecesariamente altas a los pacientes durante estas exposiciones, la Comisión Internacional de Protección Radiológica (ICRP) recomienda la utilización de Niveles de Referencia para Diagnóstico (DRLs), como una herramienta efectiva de ayuda a la optimización de la protección radiológica en la exposición médica de pacientes. Dado que la legislación de Chile aún no ha incorporado el uso de los DRLs, el presente trabajo de revisión tuvo como objetivo analizar la publicación N° 135 de la ICRP para generar un documento que sirva de guía para los odontólogos, explicando de manera didáctica y en un lenguaje sencillo, pero técnico, los principales aspectos a tener en cuenta para establecer los DRLs en procedimientos de radiología dental.
SUMMARY: Currently exposure to ionizing radiation is currently the main source of exposure to artificial radiation worldwide, with dental examinations being one of the most frequent events. In order to prevent exposure of unnecessarily high doses in patients, the International Commission on Radiological Protection (ICRP) recommends the use of Diagnostic Reference Levels (DRLs), as an effective tool to help maximize protection from radiation during medical exposure of patients. Given that the Chilean legislation has not yet incorporated the use of DRLs, the purpose of this study was to analyze publication N° 135 of the ICRP to generate a document, to serve as a guide for dentists, didactically outlining in simple but technical language, the main aspects to consider when establishing DRLs in dental radiology procedures.
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Humanos , Protección Radiológica/normas , Radiografía Dental/métodos , Dosis de Radiación , Protección Radiológica/métodos , Agencias Internacionales , Guía de Práctica Clínica , Exposición a la Radiación/prevención & control , Estudios de Evaluación como AsuntoRESUMEN
Objective: This study aims to estimate the annual doses for personnel categories following their exposure to ionizing radiation during their occupation in the external radiotherapy department of the Center of Oncology and Hematology (COH) at Mohammed VI Hospital in Marrakech.Materials and Methods:Operational dosimeters PACK MGP DMC3000 were used to measure the dose rates around the machines operating with ionizing radiation. In order to assess the reliability of the measurements made by these dosimeters, they were checked against measurements made at the same position by theInspector detector. The annual effective dosewas calculated by multiplying the average dose rate measured during a procedure by the overall treatment time throughout a year Results: Regarding the reliability checkof the measuring instrument, the recorded error is between 2 and 10% with an average of 7%. For personnel category A, the measured dose rate ranges from 0.066 to 0.083 μSv/h, with an average value of 0.075 μSv/h. For category B, it varies between 0.066 and 0.083 μSv, with an average value of 0.092 μSv/h. It is 0.074 μSv/h for category C. The annual dose for category A ranges from 0.089 to 0.113 mSv/year, with an average value of 0.101 mSv/year. For category B, it varies between 0.089 and 0.113 mSv/year, with an average value of 0.100 mSv/year. It is 0.100mSv/year for category C.Conclusion: The annual effective doses to personnel categories, assessed by this study, are very low compared to the regulatory standards set by the International Commission on Radiological Protection (ICRP). As a result, workers benefit from good radiation protection conditions within the Center of Oncology and Hematology at Mohammed VI Hospital in Marrakech
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Objective@#To analyze the levels of entrance surface dose (ESD) to patients from diagnostic medical X-ray examinations in Inner Mongolia autonomous region.@*Methods@#The investigation of diagnostic medical X-ray examinations was completed in 30% of the number of hospitals under the requirement of the program plan of the national survey on frequency and dose from medical exposure. The investigation of ESDs to patients from general diagnostic X-ray examinations was carried out in terms of the scale of annual outpatients in different levels of hospital. The difference in ESDs to patients was compared for different equipments, different grade hospitals and different exposure sites, with the comparison result being subjected to rank sum test.@*Results@#In all types of diagnostic medical X-ray equipment, DR photography equipment accounted for the majority. During various routine diagnostic X-ray examinations, the average ESDs was lumbar vertebral 3.39 mGy, pelvic and hip 1.65 mGy, cervical spine 0.90 mGy, extremities 0.38 mGy and thorax 0.37 mGy, respectively. In the diagnostic examinations of chest, lumbar and cervical spine, the ESDs caused by the use of screen film photography equipment were higher than those by DR photography equipment, with statistically significant difference (Z=-3.229, -4.820, -5.265, P<0.05).@*Conclusions@#Screen film photography equipment results in higher ESD than DR photography equipment. The doctor′s operation behavior is an important factor that affects the ESD.
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Objective@#To estimate the effective dose burden to the public in Suzhoui induced by medical exposure from computed tomography (CT) and digital radiography (DR).@*Methods@#Twenty-seven hospitals were selected by stratified random sampling. The application information was colleted from picture archiving and communication system (PACS) and radiology information system (RIS). For DR, DAP was measured by the dose-area product meter in different body parts, then the effective dose values were calculated by the DAP. For CT, effective dose was estimated by measuring CT dose index weighted (CTDIw) and scanning parameters in different parts of the body. The public dose burden caused by DR and CT medical exposure in Suzhou was estimated according to the scanning time and effective dose to each part.@*Results@#The effective dose due to DR examination was abdomen AP 0.565 mSv, pelvis AP 0.280 mSv, skull LAT 0.016 mSv, skull AP 0.012 mSv, chest LAT 0.111 mSv, chest AP 0.060 mSv, thoracic spine LAT 0.100 mSv, thoracic spine AP 0.102 mSv, lumbar spine LAT 0.307 mSv and lumbar spine AP 0.152 mSv, respectively. The effective doses from CT scanning were 1.33 mSv for head, 5.75 mSv for thorax and 7.31 mSv for abdomen, respectively. The annual collective effective dose in Suzhou in 2017 from DR exposures and CT scans was 9 593.07 man·Sv, and the average annual effective dose was 0.898 mSv.@*Conclusions@#The contribution of CT medical radiation to the public dose is much greater than that of DR. Controlling the frequency of medical exposure and single scan dose is an effective way to reduce the public dose burden. The public dose burden from DR and CT medical exposure in Suzhou is at a high level and attention needs to be paid by relevant health administrative departments.
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Objective To survey the current situation of wearing protective articles by accompanying examiners in the nursing conditions of intervention and non-intervention during CT diagnosis in a tertiary A hospital. Methods A control group and an intervention group were set up to investigate the situation of wearing protective devices. Attempt was made to use mobile lead screens in place of personal protective devices and their effects were investigated. Results A total of 4890 unavoidable accompanying examiners wearing protective equipment during CT examination were investigated. After nursing guidance, the wearing rate increased from 73％ to 94％, and the complete wearing rate increased from 19％ to 81％. Refusal to wear protective devices was mostly due to limited time. Refusal rate of emergency accompanying examiners was significantly higher than that of outpatient and inpatient accompanying examiners. After using mobile lead screen, the probability of personnel protection increased to 99％. Conclusions Nursing intervention can effectively improve the wearing rate and complete wearing rate of protective articles for accompanying examiners. Moving glass lead screen is conducive to the improvement of protection level for accompanying examiners..
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Objective To assess the frequency of medical exposure from X-ray diagnostic equipment in Tianjin,and provide recommendations for regulating medical radiation management and rational allocation and use of medical and health resources.Methods Using the census method,questionnaries were issued in the form of an administrative document to investigate the basic information on X-ray diagnostic equipment and medical procedure frequency in 687 hospitals (excluding military and armed police hospitals) in 2018.Mean values of frequencies were derived by dividing the number of procedures for each type of X-ray equipment by the total number of permanent residents.Results There were 1 562 pieces of X-ray diagnostic equipment (including interventional radiology),with an average of 1.00 unit per 10 000 population.There were 4 782 radiation workers engaged with X-ray diagnostic work (including interventional radiology),averaged on 3.06 workers per unit,with the highest of 5.25 workers per unit in tertiary hospitals and the lowest of 1.18 in ungraded hospitals.The city's X-ray diagnostic medical exposure came from 8 905 970 medical procedures,including 54.81％ for tertiary hospitals,18.00％ for secondary hospitals,16.21％ for primary hospital,and 10.98％ for ungraded hospitals.X-ray photography contributed 71.30％ with annual frequency of 407.84 examinations per 1 000 population,CT scans 21.81％ with annual frequency of 124.74 examinations per 1 000 population,interventional radiology 1.04％,with annual frequency of 5.98 examinations per 1 000 population,and other types of X-ray examinations 5.85％ with annual frequency of 33.47 examinations per 1 000 population.Conclusions The configuration of X-ray diagnostic equipment in Tianjin is basically reasonable.The frequency of X-ray diagnostic medical exposure is increasing year by year.The rationality of the distribution of X-ray diagnostic examinations needs to be further improved.To reduce dose to population,for the public health and safety is important issues in the future of radiation protection.
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Objective@#To survey the current situation of wearing protective articles by accompanying examiners in the nursing conditions of intervention and non-intervention during CT diagnosis in a tertiary A hospital.@*Methods@#A control group and an intervention group were set up to investigate the situation of wearing protective devices. Attempt was made to use mobile lead screens in place of personal protective devices and their effects were investigated.@*Results@#A total of 4 890 unavoidable accompanying examiners wearing protective equipment during CT examination were investigated. After nursing guidance, the wearing rate increased from 73% to 94%, and the complete wearing rate increased from 19% to 81%. Refusal to wear protective devices was mostly due to limited time. Refusal rate of emergency accompanying examiners was significantly higher than that of outpatient and inpatient accompanying examiners. After using mobile lead screen, the probability of personnel protection increased to 99%.@*Conclusions@#Nursing intervention can effectively improve the wearing rate and complete wearing rate of protective articles for accompanying examiners. Moving glass lead screen is conducive to the improvement of protection level for accompanying examiners..
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Objective@#To study the frequency of clinical nuclear medicine procedures and the distribution of examinees in Jiangxi povince, and to estimate the annual frequency of clinical nuclear medicine procedures in Jiangxi in 2017.@*Methods@#A survey was made with questionnaires on all medical institutions carrying out clinical nuclear medicine practices in the province.@*Results@#Except for positron emission tomography (PET) examinations, the frequency of nuclear medicine procedures for females was much higher than that for males. The total frequency of nuclear medicine procedures was 0.67 examinations per 1 000 population in 2017, and the frequencies for diagnosis and treatment were 0.58 and 0.09 examinations per 1 000 population, respectively.@*Conclusions@#The frequency of clinical nuclear medicine procedures in Jiangxi increased rapidly after the "Ninth Five-Year Plan" period. It is necessary to further standardize the diagnosis and treatment of nuclear medicine procedures, to enhance the awareness of radiation protection of nuclear medicine staff and to promote the healthy and orderly development of nuclear medicine.
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Objective@#To realize the efficient monitoring of frequency of medical exposure and dose monitoring in Ningbo by means of informatization.@*Methods@#Data transmission process and the key elements of frequency of medical exposure and individual dose were investigated. According to standardization principles of data elements, the standardized data elements for frequency of medical exposure and individual dose were determined. On this basis, modules and functions of data receiving platform on the frequency of medical exposure and individual dose in Ningbo were designed.@*Results@#Totally 59 data elements on frequency of medical exposure and individual dose were formed. According to their functions, the data receiving platform was divided into the distribution of radiodiagnosis and radiotherapy resources, the frequency monitoring of medical exposure and dose monitoring for permanent residents, and the dose monitoring.@*Conclusions@#The establishment of frequency and dose information monitoring platform on medical exposure in Ningbo and the determination of standardized data elements will be conducive to further progress in medical exposure information monitoring in Ningbo.
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Objective To study the frequency of clinical nuclear medicine procedures and the distribution of examinees in Jiangxi povince, and to estimate the annual frequency of clinical nuclear medicine procedures in Jiangxi in 2017. Methods A survey was made with questionnaires on all medical institutions carrying out clinical nuclear medicine practices in the province. Results Except for positron emission tomography (PET) examinations, the frequency of nuclear medicine procedures for females was much higher than that for males. The total frequency of nuclear medicine procedures was 0. 67 examinations per 1000 population in 2017, and the frequencies for diagnosis and treatment were 0. 58 and 0. 09 examinations per 1000 population, respectively. Conclusions The frequency of clinical nuclear medicine procedures in Jiangxi increased rapidly after the "Ninth Five-Year Plan" period. It is necessary to further standardize the diagnosis and treatment of nuclear medicine procedures, to enhance the awareness of radiation protection of nuclear medicine staff and to promote the healthy and orderly development of nuclear medicine.
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Objective To realize the efficient monitoring of frequency of medical exposure and dose monitoring in Ningbo by means of informatization. Methods Data transmission process and the key elements of frequency of medical exposure and individual dose were investigated. According to standardization principles of data elements, the standardized data elements for frequency of medical exposure and individual dose were determined. On this basis, modules and functions of data receiving platform on the frequency of medical exposure and individual dose in Ningbo were designed. Results Totally 59 data elements on frequency of medical exposure and individual dose were formed. According to their functions, the data receiving platform was divided into the distribution of radiodiagnosis and radiotherapy resources, the frequency monitoring of medical exposure and dose monitoring for permanent residents, and the dose monitoring. Conclusions The establishment of frequency and dose information monitoring platform on medical exposure in Ningbo and the determination of standardized data elements will be conducive to further progress in medical exposure information monitoring in Ningbo.
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Objective To analyze the levels of entrance surface dose (ESD) to patients from diagnostic medical X-ray examinations in Inner Mongolia autonomous region.Methods The investigation of diagnostic medical X-ray examinations was completed in 30％ of the number of hospitals under the requirement of the program plan of the national survey on frequency and dose from medical exposure.The investigation of ESDs to patients from general diagnostic X-ray examinations was carried out in terms of the scale of annual outpatients in different levels of hospital.The difference in ESDs to patients was compared for different equipments,different grade hospitals and different exposure sites,with the comparison result being subjected to rank sum test.Results In all types of diagnostic medical X-ray equipment,DR photography equipment accounted for the majority.During various routine diagnostic X-ray examinations,the average ESDs was lumbar vertebral 3.39 mGy,pelvic and hip 1.65 mGy,cervical spine 0.90 mGy,extremities 0.38 mGy and thorax 0.37 mGy,respectively.In the diagnostic examinations of chest,lumbar and cervical spine,the ESDs caused by the use of screen film photography equipment were higher than those by DR photography equipment,with statistically significant difference (Z =-3.229,-4.820,-5.265,P＜0.05).Conclusions Screen film photography equipment results in higher ESD than DR photography equipment.The doctor's operation behavior is an important factor that affects the ESD.
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Objective To estimate the effective dose burden to the public in Suzhoui induced by medical exposure from computed tomography (CT) and digital radiography (DR).Methods Twenty-seven hospitals were selected by stratified random sampling.The application information was colleted from picture archiving and communication system (PACS) and radiology information system (RIS).For DR,DAP was measured by the dose-area product meter in different body parts,then the effective dose values were calculated by the DAP.For CT,effective dose was estimated by measuring CT dose index weighted (CTDIw) and scanning parameters in different parts of the body.The public dose burden caused by DR and CT medical exposure in Suzhou was estimated according to the scanning time and effective dose to each part.Results The effective dose due to DR examination was abdomen AP 0.565 mSv,pelvis AP 0.280 mSv,skull LAT 0.016 mSv,skull AP 0.012 mSy,chest LAT 0.111 mSv,chest AP 0.060 mSv,thoracic spine LAT 0.100 mSv,thoracic spine AP 0.102 mSv,lumbar spine LAT 0.307 mSv and lumbar spine AP 0.152 mSv,respectively.The effective doses from CT scanning were 1.33 mSv for head,5.75 mSv for thorax and 7.31 mSv for abdomen,respectively.The annual collective effective dose in Suzhou in 2017 from DR exposures and CT scans was 9 593.07 man · Sv,and the average annual effective dose was 0.898 mSv.Conclusions The contribution of CT medical radiation to the public dose is much greater than that of DR.Controlling the frequency of medical exposure and single scan dose is an effective way to reduce the public dose burden.The public dose burden from DR and CT medical exposure in Suzhou is at a high level and attention needs to be paid by relevant health administrative departments.