scholarly journals THE RESULTS OF FUNCTIONING OF THE UNIFIED SYSTEM OF INDIVIDUAL DOSE CONTROL OF THE RUSSIAN FEDERATION CITIZENS BASED ON THE 2017 DATA

2018 ◽  
Vol 11 (4) ◽  
pp. 98-128 ◽  
Author(s):  
A. N. Barkovsky ◽  
R. R. Akhmatdinov ◽  
R. R. Akhmatdinov ◽  
N. K. Baryshkov ◽  
A. M. Biblin ◽  
...  
Keyword(s):  
Ionizing Radiation ◽  
Russian Federation ◽  
Individual Dose ◽  
X Ray ◽  
Radiation Sources ◽  
Dose Control ◽  
Group A ◽  
Staff Group ◽  
The Russian Federation ◽  
Group B

The article presents the results of the generalized analysis of the data on staff, patient, and public doses from ionizing radiation obtained from the Unified System of Individual Dose Control for 2017. The analysis is conducted on the basis of the annual data from the forms of Federal State Statistical. Observation No.1-DOZ (staff individual doses), No.2-DOZ (doses from radiation accidents), No.3-DOZ (patient doses) and No.4- DOZ (public doses from natural and technogenically impacted background). The information is submitted by the organizations and territories under the supervision of the Rospotrebnadzor and FMBA of the Russian Federation. The article is based on the data obtained within the framework of Radiation-Hygiene passportization. In 2017, 18 324 organizations working with the artificial radiation sources submitted the form No.1-DOZ. The form No.1-DOZ contains data on 235 271 staff individual doses, 215 290 of the staff group A and 19 981 the staff group B with individual monitoring. In 2017, the average individual dose for the staff group A was 1,23 mSv, the staff group B – 0,67 mSv. In 2017, 13 036 healthcare organizations submitted the form No.3- DOZ. According to the No.3-DOZ data, more than 286 mln. X-ray procedures were conducted in the Russian Federation in 2017. An average dose per capita from medical exposure was 0,55 mSv/year and a mean dose per an X-ray examination was 0,28 mSv. In 2017, the form No.4-DOZ contained data on 8 130 measurements of gamma-radiation dose rate in wooden houses, 1 557 measurements in one-storey stone houses, 126 550 measurements in multi-storey stone houses and 178 138 measurements on the open ground As well as the results of 4 417 measurements of radon concentration levels in wooden houses, 5 971 measurements in one-storey stone houses, 57 461 measurements in multi-storey stone houses. The public average effective dose from natural ionizing radiation sources corresponded to 3.34 mSv/year, the average values for the subjects of the Russian Federation fall in the range from 2,15 mSv/year (Nenets Autonomous Okrug) to 8,9 mSv/year (Altai republic). The article includes the Annexes with the final generalized forms of the Unified System of Individual Dose Control in 2017 based on the forms of statistical observations No. 1-, 3- and 4-DOZ of the subjects of the Russian Federation.

scholarly journals Radiation doses to the population of the Russian Federation in 2020

2021 ◽  
Vol 14 (4) ◽  
pp. 103-113
Author(s):  
A. N. Barkovsky ◽  
Ruslan R. Akhmatdinov ◽  
Rustam R. Akhmatdinov ◽  
N. К. Baryshkov ◽  
A. M. Biblin ◽  
...  
Keyword(s):  
Effective Dose ◽  
Russian Federation ◽  
Annual Effective Dose ◽  
Dose Limit ◽  
The Public ◽  
Dose Control ◽  
Group A ◽  
The Russian Federation ◽  
Group B ◽  
Average Individual

The article presents estimates of radiation doses of technogenic exposure to personnel and the public due to the normal operation of radiation facilities, exposure to the public due to natural sources and technogenically altered radiation environment, and medical exposure of patients. The doses values were obtained using the Unified System of Individual Dose Control of the Russian Federation citizens for 2020. The authors have analyzed the data contained in the forms of state statistical observation No. 1-DOZ, No. 2-DOZ, No. 3-DOZ and No. 4-DOZ for 2020 submitted by the organizations and territories, the state sanitary and epidemiological supervision of which was carried out by Rospotrebnadzor and Federal Medical Biological Agency of Russia. In the article also were used data obtained within the framework of Radiation-Hygiene Passportization. In 2020, 19 737 organizations dealing with technogenic sources of ionizing radiation submitted forms No. 1-DOZ with the information on the doses to personnel with a total number of 230 318 persons, of which 230 318 persons belonged to the personnel group A and 21 303 persons belonged to the personnel group B. For these groups, the doses were assessed based on results of individual dosimetric control. In 2020, according to Unified System of Individual Dose Control of the Russian Federation citizens data, the average individual annual effective dose of technogenic exposure to the personnel group A was 1.11 mSv, and for the personnel group B it was 0.63 mSv. In 2020, 6 cases of exceeding the average annual effective dose limit (20 mSv) for Group A personnel and 18 cases of exceeding the average annual effective dose limit (5 mSv) for Group B personnel were registered. The total number of X-ray and radiological diagnostic procedures performed in the Russian Federation in 2020 exceeded 275.4 million, or 1.83 procedures per a citizen. The average annual effective dose of medical radiation exposure per one resident of Russia in 2020 was 0.81 mSv, and per procedure – 0.44 mSv. The average annual effective dose of radiation to residents of the Russian Federation from natural sources, according to all measurements for the period from 2001 to 2020, was 3.36 mSv. More than 59% of this dose is associated with the inhalation of radon and its progenies. The average individual annual effective radiation dose to residents the Russian Federation subjects in 2020 ranged from 2.47 mSv (Kamchatka Krai) to 9.06 mSv (Altai Republic) with an average value for the Russian Federation of 4.18 mSv. For eight subjects of the Russian Federation, the average individual annual effective dose to public in 2020 exceeded 5 mSv: the Republics of Buryatia (5.31 mSv), Altai (9.06 mSv), Tyva (6.31 mSv), Magadan (5.07 mSv) and Irkutsk (6.13 mSv) regions, Stavropol (6.31 mSv) and Zabaykalsky (8.19 mSv) krai and the Evreiskaya Autonomous oblast (6.77 mSv).

scholarly journals The outcomes of functioning of the Unified System of Individual Dose Control of the Russian Federation citizens based on the 2019 data

2020 ◽  
Vol 13 (4) ◽  
pp. 110-119
Author(s):  
A. N. Barkovsky ◽  
Ruslan R. Akhmatdinov ◽  
Rustam R. Akhmatdinov ◽  
A. M. Biblin ◽  
A. A. Bratilova ◽  
...  
Keyword(s):  
Russian Federation ◽  
Individual Dose ◽  
Dose Control ◽  
The Russian Federation

scholarly journals Trends in the doses of the population of the Russian Federation in 2003–2018

2020 ◽  
Vol 12 (4) ◽  
pp. 96-122 ◽  
Author(s):  
Anatoly N. Barkovsky ◽  
Anzhelika A. Bratilova ◽  
Tatyana A. Kormanovskaya ◽  
Ruslan R. Akhmatdinov ◽  
Rustam R. Akhmatdinov
Keyword(s):  
Effective Dose ◽  
Russian Federation ◽  
Radiation Safety ◽  
Information Bulletin ◽  
Group A ◽  
Effective Doses ◽  
The Russian Federation ◽  
Medical Exposure ◽  
The Mean ◽  
Group B

In the last years radiation-hygienic passportization and Joint state system of control and accounting of the individual doses of the citizens have become a trusted source of the validated data on the state of the radiation safety in the Russian Federation and have become the basis of the Russian system of the information provision of the radiation safety. Annual analysis of that data is presented in the annual information bulletin “Doses of the population of the Russian Federation”. The current study is focused on the analysis of the data from the information bulletins to evaluate the trends in the doses of the Russian population from main sources of ionizing exposure in 2003–2018. It is indicated that the mean annual doses from man-made exposure of the group A staff in that period varies from 1,0–1,4 mSv per year, group B – 0,65–0,8 mSv per year. The number of exceedances of the annual dose limits from group A staff varied from 5 to 52 per year; for group B – 0–22 per year. For the whole investigated period there were only three cases of the exceedance of the 50 mSv annual individual dose for group A staff and four cases of the exceedance of the 12,5 mSv annual effective dose for group B staff. Mean effective dose per X-ray examination in 2006–2013 was decreasing from 0,56 mSv to 0,26 mSv and started to slowly increase leading to 0,29 mSv in 2018. The same trends were identified for the mean dose from medical exposure per citizen: reduction in 2003-2013 from 0,86 mSv to 0,45 mSv with the subsequent increase up to 0,56 mSv. The biggest contributor for the dose from medical exposure is computed tomography: the number of CT examinations increased from 1,3 mln in 2003 to 11,7 mln in 2018; contribution to the collective dose – from 5,7% to 54%. Mean annual effective doses from natural exposure of the population of the Russian regions varied from 1,6 to 15,1 mSv per year with the mean value for Russia of 3,11 – 3,79 mSv/year. The highest mean annual doses exceeding 5 mSv in each year were observed in Republic of Altay, Jewish Independent Region, Stavropol and Zabaikalskiy Krai, Republic of Tyva and Irkutsk region. Total effective doses exceeding 10 mSv/year were observed in Republic of Altay and Jewish Independent Region. For ten subjects of the Russain Federation (Republics of Buryatia, Altay, Tyva, Stavropol and Zabaikalskiy Krai, Irkutsk and Chita regions, Jewish Independent Region, Aginsko-Buryatskiy and Ust’-Ordinskiy independent districts) they exceed 5 mSv/year for the whole assessed period.

scholarly journals Organizational and technological algorithm of primary specialized health care at cardiovascular diseases

2020 ◽  
Vol 101 (3) ◽  
pp. 394-402
Author(s):  
A Yu Abramov ◽  
R S Goloshchapov-Aksenov ◽  
D I Kicha ◽  
O V Rukodayny
Keyword(s):  
Russian Federation ◽  
Limb Ischemia ◽  
Scientific Publications ◽  
Quality Healthcare ◽  
Significant Atherosclerosis ◽  
Group A ◽  
The Russian Federation ◽  
Clinically Significant ◽  
Group B ◽  
Cardiovascular Care

Aim. To develop an algorithm for primary specialized cardiovascular care with a priority of endovascular strategy. Methods. The study was conducted in 20182019 based on the Central Clinical Hospital Russian Railways-Medicine and 14 polyclinics in the regions of the Russian Federation. The subject of the study is cardiovascular surgeons (n=2), possessing the skills of endovascular care. The object of the study was patients (n=1018) attended regional polyclinics of the Russian Federation. Patients were divided into two groups: group A consisting of 673 patients with clinically significant atherosclerosis of the coronary, brachiocephalic and peripheral arteries and abdominal aortic aneurysm; group B consisting of 345 patients with chronic lower limb ischemia that does not require surgical treatment. The average age of patients in group A was 696.1 years, in group B 637.2 years. There were 467 men in group A (69.4%), and 339 in group B (98.3%). An organizational and technological algorithm was developed to improve the primary specialized cardiovascular care. The results were assessed by the presence of outcomes (heart attack, stroke, bleeding, death), the availability of endovascular care and patient survival follow up 12 and 24 months. A content analysis of scientific publications on the issue under study has been performed. Results. An organizational and technological algorithm of primary specialized cardiovascular care has been developed, including the activities of the cardiovascular surgeon, who has the skills of endovascular care and a nurse in an outpatient clinic. The implementation of the algorithm ensured continuity, 100% availability, safety and quality of cardiovascular care using endovascular technology. Outcomes are not registered in both groups. Both patient groups showed 100% one and two-year survival. Conclusion. The developed algorithm of primary specialized cardiovascular care has provided high quality healthcare.

Analysis Radiation Monitoring in the Khanty-Mansi Autonomous Okrug - Yugra (2009-2018)

2019 ◽  
Vol 5 (12) ◽  
pp. 118-128
Author(s):  
V. Tilles ◽  
A. Poberezhnyi ◽  
V. Samoilov
Keyword(s):  
Ionizing Radiation ◽  
Russian Federation ◽  
Open Data ◽  
Radiation Monitoring ◽  
Radiation Doses ◽  
Radiation Accidents ◽  
Radiation Sources ◽  
The Russian Federation ◽  
Khanty Mansi Autonomous

Based on the analysis of open data from government reports and Rosstat data, a significant increase in the number of radiation accidents in the territory of the Khanty–Mansi Autonomous Okrug — Yugra was established, namely, 9 times in 2015–2017. It is noted that annually the maximum radiation doses close to the maximum are received by loggers of oil–producing organizations, and the use of ionizing radiation sources in logging operations is steadily increasing. Recommendations on improving radiation monitoring, as well as clarification in the Resolution of the Chief State Sanitary Doctor of the Russian Federation, are offered.

scholarly journals THE OUTCOMES OF FUNCTIONING OF THE UNIFIED SYSTEM OF INDIVIDUAL DOSE CONTROL OF THE RUSSIAN FEDERATION CITIZENS BASED ON THE 2015 DATA

2016 ◽  
Vol 9 (4) ◽  
pp. 47-73 ◽  
Author(s):  
A. N. Barkovsky ◽  
R. R. Akhmatdinov ◽  
N. K. Baryshkov ◽  
A. A. Bratilova ◽  
T. A. Kormanovskaya ◽  
...  
Keyword(s):  
Russian Federation ◽  
Individual Dose ◽  
Dose Control ◽  
The Russian Federation

scholarly journals The Impact of Left Atrial Size in Catheter Ablation of Atrial Fibrillation Using Remote Magnetic Navigation

2018 ◽  
Vol 2018 ◽  
pp. 1-8
Author(s):  
Xiao-yu Liu ◽  
Hai-feng Shi ◽  
Jie Zheng ◽  
Ku-lin Li ◽  
Xiao-xi Zhao ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Catheter Ablation ◽  
Left Atrial ◽  
Magnetic Navigation ◽  
Remote Magnetic Navigation ◽  
X Ray ◽  
Group A ◽  
Group B ◽  
The Impact

Objective. The objective of this study was to investigate the impact of left atrial (LA) size for the ablation of atrial fibrillation (AF) using remote magnetic navigation (RMN). Methods. A total of 165 patients with AF who underwent catheter ablation using RMN were included. The patients were divided into two groups based on LA diameter. Eighty-three patients had small LA (diameter <40 mm; Group A), and 82 patients had a large LA (diameter ≥40 mm; Group B). Results. During mapping and ablation, X-ray time (37.0 (99.0) s vs. 12 (30.1) s, P<0.001) and X-ray dose (1.4 (2.7) gy·cm2 vs. 0.7 (2.1) gy·cm2, P=0.013) were significantly higher in Group A. No serious complications occurred in any of the patients. There was no statistical difference in the rate of first anatomical attempt of pulmonary vein isolation between the two groups (71.1% vs. 57.3%, P=0.065). However, compared with Group B, the rate of sinus rhythm was higher (77.1% vs. 58.5%, P<0.001) during the follow-up period. More patients in Group A required a sheath adjustment (47/83 vs. 21/82, P<0.001), presumably due to less magnets positioned outside of the sheath. In vitro experiments with the RMN catheter demonstrated that only one magnet exposed created the sheath affects which influenced the flexibility of the catheter. Conclusions. AF ablation using RMN is safe and effective in both small and large LA patients. Patients with small LA may pose a greater difficulty when using RMN which may be attributed to the fewer magnets beyond the sheath. As a result, the exposure of radiation was increased. This study found that having at least two magnets of the catheter positioned outside of the sheath can ensure an appropriate flexibility of the catheter.

THE PROGRESSIVE PHENOTYPE OF PNEUMOCONIOSIS

2021 ◽  
Author(s):  
Y.Y. Gorblyansky ◽  
◽  
M.A. Panova ◽  
O.P. Ponamareva
Keyword(s):  
Computed Tomography ◽  
Silicon Dioxide ◽  
Retrospective Analysis ◽  
Russian Federation ◽  
Medical Examination ◽  
X Ray ◽  
Radiological Parameters ◽  
Rostov Region ◽  
The Russian Federation

Abstract: The prevalence of progressive forms of pneumoconiosis in the Russian Federation has been little studied. At the same time, the number of workers exposed to silicon dioxide, both in our country and abroad, is not decreasing. The purpose of our research to determine the criteria for the progression of pneumoconiosis in miners. A retrospective analysis of the results of a comprehensive medical examination of 150 miners of the Rostov region, observed in the center of occupational pathology, was carried out. All patients underwent radiography, computed tomography of the chest organs, and spirometry. X-ray description of the changes was carried out in accordance with the recommendations of the ILO. As a result, 24.5% had statistically significant signs of negative dynamics of functional and radiological indicators, which we referred to the criteria of progression. Thus, the progression of pneumoconiosis is determined by the negative dynamics of clinical and radiological parameters.

Repairing Rabbit Radius Bone Defects with Simvastatin Compound Biological Bone

2021 ◽  
Vol 11 (7) ◽  
pp. 1263-1270
Author(s):  
Zhong-Yu Liu ◽  
Jin-Li Zhang ◽  
Yang Zhang ◽  
Shi-Lian Kan ◽  
Jun Liang ◽  
...  
Keyword(s):  
Bone Defect ◽  
Maximum Stress ◽  
Biomechanical Testing ◽  
Bone Defects ◽  
Bending Test ◽  
Bone Material ◽  
X Ray ◽  
Group A ◽  
Group B ◽  
Group D

Objective: This study aimed to investigate the feasibility of repairing rabbit radius bone defects with simvastatin compound biological bone. Methods: Simvastatin biological bone material was prepared, and osteoblasts were cultured. A total of 42 New Zealand white rabbits were randomly divided into four groups, and a bone defect with a length of 15 mm was created at the middle part of the radial shaft of both limbs in each rabbit, thereby establishing a bone defect model. The grafts in group A were biological bones of osteoblasts combined with simvastatin; the grafts in group B were biological bones of simvastatin; the grafts in group C were biological compound bones of osteoblasts; and the grafts in group D were simple biological bones. In each group, four animals were randomly sacrificed at the sixth and twelfth week after surgery, and specimens were collected for gross observation, X-ray examination, histological observation, and biomechanical testing. In each group, two animals were randomly sacrificed at the twelfth week after surgery; a three-point bending test was performed using a biomechanical testing machine, and the results were compared with those of a normal radius. Results: The X-ray and histological examinations at 6 and 12 weeks after surgery revealed that the osteogenesis ability of the simvastatin biological bone and osteoblast-simvastatin biological bone was better than that of the osteoblast biological bone and simple biological bone, which was superior in group A and group B to group C and group D. The results of the biomechanical examination revealed that the maximum stress of the normal radius was significantly higher than that of the experimental groups. Among the experimental groups, the difference between group A and group B was not statistically significant, and the maximum stress was higher in groups A and B than in groups C and D. Conclusion: Simvastatin biological bone material can promote the repair of rabbit radius defects and increase the quality of bone healing.

scholarly journals Bracket base remnants after orthodontic debonding

2013 ◽  
Vol 83 (5) ◽  
pp. 885-891 ◽  
Author(s):  
Matteo Zanarini ◽  
Antonio Gracco ◽  
Monica Lattuca ◽  
Silvia Marchionni ◽  
Maria Rosaria Gatto ◽  
...  
Keyword(s):  
Energy Dispersive ◽  
Scanning Electron Micrographs ◽  
X Ray ◽  
Significant Difference ◽  
Group A ◽  
Fixed Appliances ◽  
Group B ◽  
Imagej Software ◽  
Bracket Base ◽  
Scanning Electron

ABSTRACT Objective: To evaluate whether the debonding procedure leads to restitutio ad integrum of the enamel surface by investigating the presence of enamel within the bracket base remnants after debonding. Materials and Methods: Sixty patients who completed orthodontic treatment with fixed appliances were included. A total of 1068 brackets were microphotographed; the brackets presenting some remnants on the base (n  =  818) were selected and analyzed with ImageJ software to measure the remnant area. From this population a statistically significant sample (n  =  100) was observed under a scanning electron microscope to check for the presence of enamel within the remnants. Energy dispersive x-ray spectrometry was also performed to obtain quantitative data. Results: Statistically significant differences in the remnant percentage between arches were observed for incisor and canine brackets (P &lt; .0001 and P  =  .022, respectively). From a morphologic analysis of the scanning electron micrographs the bracket bases were categorized in 3 groups: group A, bases presenting a thin enamel coat (83%); group B, bases showing sizable enamel fragments (7%); group C, bases with no morphologic evidence of enamel presence (10%). Calcium presence was noted on all evaluated brackets under energy dispersive x-ray spectrometry. No significant difference was observed in the Ca/Si ratio between group A (16.21%) and group B (18.77%), whereas the Ca/Si ratio in group C (5.40%) was significantly lower than that of the other groups (P &lt; .323 and P  =  .0001, respectively). Conclusion: The objective of an atraumatic debonding is not achieved yet; in some cases the damage could be clinically relevant.

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