JOURNAL DESCRIPTION
The Medical Radiology and Radiation Safety journal ISSN 1024-6177 was founded in January 1956 (before December 30, 1993 it was entitled Medical Radiology, ISSN 0025-8334). In 2018, the journal received Online ISSN: 2618-9615 and was registered as an electronic online publication in Roskomnadzor on March 29, 2018. It publishes original research articles which cover questions of radiobiology, radiation medicine, radiation safety, radiation therapy, nuclear medicine and scientific reviews. In general the journal has more than 30 headings and it is of interest for specialists working in thefields of medicine¸ radiation biology, epidemiology, medical physics and technology. Since July 01, 2008 the journal has been published by State Research Center - Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency. The founder from 1956 to the present time is the Ministry of Health of the Russian Federation, and from 2008 to the present time is the Federal Medical Biological Agency.
Members of the editorial board are scientists specializing in the field of radiation biology and medicine, radiation protection, radiation epidemiology, radiation oncology, radiation diagnostics and therapy, nuclear medicine and medical physics. The editorial board consists of academicians (members of the Russian Academy of Science (RAS)), the full member of Academy of Medical Sciences of the Republic of Armenia, corresponding members of the RAS, Doctors of Medicine, professor, candidates and doctors of biological, physical mathematics and engineering sciences. The editorial board is constantly replenished by experts who work in the CIS and foreign countries.
Six issues of the journal are published per year, the volume is 13.5 conventional printed sheets, 88 printer’s sheets, 1.000 copies. The journal has an identical full-text electronic version, which, simultaneously with the printed version and color drawings, is posted on the sites of the Scientific Electronic Library (SEL) and the journal's website. The journal is distributed through the Rospechat Agency under the contract № 7407 of June 16, 2006, through individual buyers and commercial structures. The publication of articles is free.
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The main working language of the journal is Russian, an additional language is English, which is used to write titles of articles, information about authors, annotations, key words, a list of literature.
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The two-year impact factor of RISC, according to data for 2017, was 0.439, taking into account citation from all sources - 0.570, and the five-year impact factor of RISC - 0.352.
Medical Radiology and Radiation Safety. 2016. Vol. 61. No. 6. P. 50-56
DIAGNOSTIC RADIOLOGY
E.I. Matkevich1,2, V.E. Sinitsyn1, A.N. Bashkov3
Comparison of Radiation Dose of Patients During Single-Phase and Multiphase Computed Tomography in the Multidisciplinary Treatment Clinic
1. Federal Center of Treatment and Rehabilitation, Moscow, Russia, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. ; 2. I.M. Sechenov First Moscow State Medical University, Moscow. Russia; 3. A.I. Burnasyan Federal Medical Biophysical Center of FMBA, Moscow, Russia
ABSTRACT
Purpose: Determine mean radiation dose of patients and comparison of frequency of CT-examinations and radiation dose of patients during single-phase and multiphase CT-examinations of the brain, chest, abdomen and pelvis and feasibility of low-dose CT-examinations.
Material and methods: Structure of single-phase and multiphase CT-examinations, were analyzed during 2012-2014 in a multiprofile hospital (450 beds). The mean effective dose in single-phase and multiphase CT-examinations were calculated, data were obtained from 1766 records of patients (age range 17-93) scanned with 4 MDCT systems for the years 2012-2014: brain (n = 369), chest (n = 661), abdomen-pelvis (n = 557), chest-abdomen-pelvis (n = 179). CT-examinations of good quality were selected, volumetric CT dose index (CTDI, mGy) and dose-length product (DLP, mGy×cm) were collected for each of them. The effective dose (mSv) was calculated using the normalized coefficients according to Guidelines [7].
Results: Most of single-phase CT is the examination of chest (27.9-33.1 %), as for multiphase CT it is the examinations of abdomen and pelvis (18.9-25.2%). The mean effective doses due to one multiphase CT according to anatomical areas were as follows: brain - 3.2-4.6 mSv, chest - 8.4-5.3 mSv, chest-abdomen-pelvis - 31.8-38.6 mSv. Reduction of radiation dose was presented in illustrated routine examples of low-dose CT, for single-phase CT of chest to 2.6-3.7 times, for multiphase CT of chest-abdomen-pelvis to 3.6-6.4 times.
Conclusion: Radiation doses of one multiphase CT increase in proportion to the number of phases. Dose levels for one phase at a multiphase CT are generally lower than radiation doses in similar single-phase CT. Using low-dose methods in single-phase CT and in the native phase of multiphase CT allows to reduce radiation dose to patients preserving the acceptable quality of CT-imaging.
Key words : computed tomography, multiphase computed tomography, patients, effective radiation dose of patients, low-dose CT-examinations, low doses, potential risk, risk assessment
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For citation: Matkevich FI, Sinitsyn VE, Bashkov A.N. Comparison of Radiation Dose of Patients During Single-phase and Multiphase Computed Tomography in the Multidisciplinary Treatment Clinic. Medical Radiology and Radiation Safety. 2016;61(6):50-6. Russian.
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