Radiation risk assessment in neonatal radiographic examinations of the chest and abdomen: a clinical and Monte Carlo dosimetry study. 2006

T Makri, and E Yakoumakis, and D Papadopoulou, and G Gialousis, and V Theodoropoulos, and P Sandilos, and E Georgiou
Medical Physics Department, Medical School, University of Athens, 75, Mikras Asias Str, Goudi, 115 27 Athens, Greece.

Seeking to assess the radiation risk associated with radiological examinations in neonatal intensive care units, thermo-luminescence dosimetry was used for the measurement of entrance surface dose (ESD) in 44 AP chest and 28 AP combined chest-abdominal exposures of a sample of 60 neonates. The mean values of ESD were found to be equal to 44 +/- 16 microGy and 43 +/- 19 microGy, respectively. The MCNP-4C2 code with a mathematical phantom simulating a neonate and appropriate x-ray energy spectra were employed for the simulation of the AP chest and AP combined chest-abdominal exposures. Equivalent organ dose per unit ESD and energy imparted per unit ESD calculations are presented in tabular form. Combined with ESD measurements, these calculations yield an effective dose of 10.2 +/- 3.7 microSv, regardless of sex, and an imparted energy of 18.5 +/- 6.7 microJ for the chest radiograph. The corresponding results for the combined chest-abdominal examination are 14.7 +/- 7.6 microSv (males)/17.2 +/- 7.6 microSv (females) and 29.7 +/- 13.2 microJ. The calculated total risk per radiograph was low, ranging between 1.7 and 2.9 per million neonates, per film, and being slightly higher for females. Results of this study are in good agreement with previous studies, especially in view of the diversity met in the calculation methods.

UI MeSH Term Description Entries
D007231 Infant, Newborn An infant during the first 28 days after birth. Neonate,Newborns,Infants, Newborn,Neonates,Newborn,Newborn Infant,Newborn Infants
D008297 Male Males
D008962 Models, Theoretical Theoretical representations that simulate the behavior or activity of systems, processes, or phenomena. They include the use of mathematical equations, computers, and other electronic equipment. Experimental Model,Experimental Models,Mathematical Model,Model, Experimental,Models (Theoretical),Models, Experimental,Models, Theoretic,Theoretical Study,Mathematical Models,Model (Theoretical),Model, Mathematical,Model, Theoretical,Models, Mathematical,Studies, Theoretical,Study, Theoretical,Theoretical Model,Theoretical Models,Theoretical Studies
D009010 Monte Carlo Method In statistics, a technique for numerically approximating the solution of a mathematical problem by studying the distribution of some random variable, often generated by a computer. The name alludes to the randomness characteristic of the games of chance played at the gambling casinos in Monte Carlo. (From Random House Unabridged Dictionary, 2d ed, 1993) Method, Monte Carlo
D011829 Radiation Dosage The amount of radiation energy that is deposited in a unit mass of material, such as tissues of plants or animal. In RADIOTHERAPY, radiation dosage is expressed in gray units (Gy). In RADIOLOGIC HEALTH, the dosage is expressed by the product of absorbed dose (Gy) and quality factor (a function of linear energy transfer), and is called radiation dose equivalent in sievert units (Sv). Sievert Units,Dosage, Radiation,Gray Units,Gy Radiation,Sv Radiation Dose Equivalent,Dosages, Radiation,Radiation Dosages,Units, Gray,Units, Sievert
D011834 Radiation Monitoring The observation, either continuously or at intervals, of the levels of radiation in a given area, generally for the purpose of assuring that they have not exceeded prescribed amounts or, in case of radiation already present in the area, assuring that the levels have returned to those meeting acceptable safety standards. Monitoring, Radiation
D011860 Radiography, Abdominal Radiographic visualization of the body between the thorax and the pelvis, i.e., within the peritoneal cavity. Abdominal Radiography,Abdominal Radiographies,Radiographies, Abdominal
D011874 Radiometry The measurement of radiation by photography, as in x-ray film and film badge, by Geiger-Mueller tube, and by SCINTILLATION COUNTING. Geiger-Mueller Counters,Nuclear Track Detection,Radiation Dosimetry,Dosimetry, Radiation,Geiger Counter,Geiger-Mueller Counter Tube,Geiger-Mueller Probe,Geiger-Mueller Tube,Radiation Counter,Counter Tube, Geiger-Mueller,Counter Tubes, Geiger-Mueller,Counter, Geiger,Counter, Radiation,Counters, Geiger,Counters, Geiger-Mueller,Counters, Radiation,Detection, Nuclear Track,Dosimetries, Radiation,Geiger Counters,Geiger Mueller Counter Tube,Geiger Mueller Counters,Geiger Mueller Probe,Geiger Mueller Tube,Geiger-Mueller Counter Tubes,Geiger-Mueller Probes,Geiger-Mueller Tubes,Probe, Geiger-Mueller,Probes, Geiger-Mueller,Radiation Counters,Radiation Dosimetries,Tube, Geiger-Mueller,Tube, Geiger-Mueller Counter,Tubes, Geiger-Mueller,Tubes, Geiger-Mueller Counter
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

Related Publications

T Makri, and E Yakoumakis, and D Papadopoulou, and G Gialousis, and V Theodoropoulos, and P Sandilos, and E Georgiou
February 2020, Physics in medicine and biology,
T Makri, and E Yakoumakis, and D Papadopoulou, and G Gialousis, and V Theodoropoulos, and P Sandilos, and E Georgiou
October 2001, The British journal of radiology,
T Makri, and E Yakoumakis, and D Papadopoulou, and G Gialousis, and V Theodoropoulos, and P Sandilos, and E Georgiou
March 2020, Medical physics,
T Makri, and E Yakoumakis, and D Papadopoulou, and G Gialousis, and V Theodoropoulos, and P Sandilos, and E Georgiou
January 2010, Radiation protection dosimetry,
T Makri, and E Yakoumakis, and D Papadopoulou, and G Gialousis, and V Theodoropoulos, and P Sandilos, and E Georgiou
January 2006, Radiation protection dosimetry,
T Makri, and E Yakoumakis, and D Papadopoulou, and G Gialousis, and V Theodoropoulos, and P Sandilos, and E Georgiou
August 2010, Physics in medicine and biology,
T Makri, and E Yakoumakis, and D Papadopoulou, and G Gialousis, and V Theodoropoulos, and P Sandilos, and E Georgiou
March 2023, Radiation protection dosimetry,
T Makri, and E Yakoumakis, and D Papadopoulou, and G Gialousis, and V Theodoropoulos, and P Sandilos, and E Georgiou
January 1997, Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine,
T Makri, and E Yakoumakis, and D Papadopoulou, and G Gialousis, and V Theodoropoulos, and P Sandilos, and E Georgiou
March 2018, Physics in medicine and biology,
T Makri, and E Yakoumakis, and D Papadopoulou, and G Gialousis, and V Theodoropoulos, and P Sandilos, and E Georgiou
January 2019, Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB),
Copied contents to your clipboard!