Pediatric computed tomography practice in Japanese university hospitals from 2008-2010: did it differ from German practice?

Published on Jan 1, 2017in Journal of Radiation Research2.724
路 DOI :10.1093/JRR/RRW074
Koji Yoshida6
Estimated H-index: 6
(Fukushima Medical University),
Lucian Krille10
Estimated H-index: 10
(IARC: International Agency for Research on Cancer)
+ 11 AuthorsTakashi Kudo21
Estimated H-index: 21
(Nagasaki University)
Computed tomography (CT) is an essential tool in modern medicine and is frequently used to diagnose a wide range of conditions, particularly in industrial countries, such as Japan and Germany. However, markedly higher doses of ionizing radiation are delivered during CT imaging than during conventional X-ray examinations. To assess pediatric CT practice patterns, data from three university hospital databases (two in Japan and one in Germany) were analyzed. Anonymized data for patients aged 0 to 14 years who had undergone CT examinations between 2008 and 2010 were extracted. To assess CT practice, an interdisciplinary classification scheme for CT indications, which incorporated the most common examination types and radiosensitive tissues, was developed. The frequency of CT examinations was determined according to sex, age at examination, and indications. A total of 5182 CT examinations were performed in 2955 children. Overall, the frequency of CT examinations at the Japanese university hospitals did not differ significantly from that at the German hospital. However, differences were detected in the age distribution of the patients who underwent CT examinations (the proportion of patients <5 years of age was significantly higher in Japan than in Germany) and in the indications for CT. Substantial practice differences regarding the use of CT in pediatric health care were detected between the three hospitals. The results of this study point towards a need for approaches such as clinical guidelines to reduce unwarranted medical radiation exposures, particularly abdominal and head CT, in the Japanese health system.
馃摉 Papers frequently viewed together
#1Lucian Krille (IARC: International Agency for Research on Cancer)H-Index: 10
#2S. Dreger (University of Bremen)H-Index: 1
Last. Maria BlettnerH-Index: 69
view all 31 authors...
The aim of this cohort study was to assess the risk of developing cancer, specifically leukaemia, tumours of the central nervous system and lymphoma, before the age of 15 years in children previously exposed to computed tomography (CT) in Germany. Data for children with at least one CT between 1980 and 2010 were abstracted from 20 hospitals. Cancer cases occurring between 1980 and 2010 were identified by stochastic linkage with the German Childhood Cancer Registry (GCCR). For all cases and a sam...
#1Neige JournyH-Index: 6
#2Dominique LaurierH-Index: 46
Last. Bernier MoH-Index: 1
view all 3 authors...
Comment on: Are the studies on cancer risk from CT scans biased by indication? Elements of answer from a large-scale cohort study in France
#1Huang Wy (NDMC: National Defense Medical Center)H-Index: 1
#2Chih-Hsin Muo (China Medical University (Taiwan))H-Index: 24
Last. Chia-Hung Kao (PRC: China Medical University (PRC))H-Index: 65
view all 8 authors...
Paediatric head CT scan and subsequent risk of malignancy and benign brain tumour: a nation-wide population-based cohort study
#1Linda WalshH-Index: 27
#2Roy E. Shore (RERF: Radiation Effects Research Foundation)H-Index: 83
Last. Richard Wakeford (University of Manchester)H-Index: 34
view all 5 authors...
#1Samuel L. Brady (St. Jude Children's Research Hospital)H-Index: 17
#2Bria M. MooreH-Index: 4
Last. Robert A. KaufmanH-Index: 28
view all 4 authors...
For a predominantly pediatric population imaged with 40% adaptive statistical iterative reconstruction, a mean radiation dose reduction of 39% (2.7/4.4 mGy; range, 23%鈥72%) was achieved in chest CT and a mean reduction of 29% (4.8/6.8 mGy; range, 20%鈥64%) was achieved in abdominopelvic CT with no change in image noise magnitude or contrast-to-noise ratio.
#1Zare Hossein (Johns Hopkins University)H-Index: 1
#2Anderson Gerard (Johns Hopkins University)H-Index: 1
Many high income countries increased their level of patient cost sharing between 2000 and 2010 as one component of their policy agenda to reduce the level of health care spending. We use data from the OECD, European Observatory, and country-specific resources to analyze trends in the UK, Germany, Japan, France, and the United States. Some forms of cost sharing鈥攄eductibles, co-insurance, or co-payments鈥攊ncreased in all these countries, with the highest rates of increase occurring in the pharmaceu...
#1John D. Mathews (University of Melbourne)H-Index: 57
#2Anna V. Forsythe (University of Melbourne)H-Index: 2
Last. Sarah C. Darby (Clinical Trial Service Unit)H-Index: 83
view all 15 authors...
Objective To assess the cancer risk in children and adolescents following exposure to low dose ionising radiation from diagnostic computed tomography (CT) scans. Design Population based, cohort, data linkage study in Australia. Cohort members 10.9 million people identified from Australian Medicare records, aged 0-19 years on 1 January 1985 or born between 1 January 1985 and 31 December 2005; all exposures to CT scans funded by Medicare during 1985-2005 were identified for this cohort. Cancers di...
#1Claudia Zacharias (UW: University of Washington)H-Index: 2
#2Adam M. AlessioH-Index: 33
Last. Mahesh M. ThapaH-Index: 15
view all 7 authors...
OBJECTIVE. The introduction of MDCT has increased the utilization of CT in pediatric radiology along with concerns for radiation sequelae. This article reviews general principles of lowering radiation dose, the basic physics that impact radiation dose, and specific CT integrated dose-reduction tools focused on the pediatric population. CONCLUSION. The goal of this article is to provide a comprehensive review of the recent literature regarding CT dose reduction methods, their limitations, and an ...
#1Tracy Robinson (UW: University of Washington)H-Index: 13
#2Jeffrey D. Robinson (UW: University of Washington)H-Index: 11
Last. Kalpana M. Kanal (UW: University of Washington)H-Index: 21
view all 3 authors...
A rising conciousness within both the medical community and in the public has been created by the current levels of radiation exposure from increased use of computed tomography. The concern has prompted the need for more data collection and analysis of hospital and imaging center exam doses. This has spurred the American College of Radiology (ACR) to develop the Dose Index Registry (DIR), which will allow participating insitutions to compare the radiation dose from their CT exams to aggregate na...
#1Mark S. Pearce (RVI: Royal Victoria Infirmary)H-Index: 64
#2J Salotti (RVI: Royal Victoria Infirmary)H-Index: 14
view all 12 authors...
Methods In our retrospective cohort study , we included patients without previous cancer diagnoses who were fi rst examined with CT in National Health Service (NHS) centres in England, W ales, or Scotland (Great Britain) between 1985 and 2002, when they were younger than 22 years of age. We obtained data for cancer incidence, mortality, and loss to follow-up from the NHS Central Registry from Jan 1, 1985, to Dec 31, 2008. We estimated absorbed brain and red bone marrow doses per CT scan in mGy a...
Cited By5
#1Takayasu Yoshitake (Oita University)
#2Koji OnoH-Index: 56
Last. Michiaki Kai (Oita University)H-Index: 1
view all 5 authors...
Recent studies suggest a causal link of childhood leukemia and brain tumor with repeated computed tomography (CT) scans. The reasons why frequent CT scans are taken in a specific child remain unclear. The present study aimed to clarify the medical reasons why frequent CT examinations in children, and the characteristics of the diseases of those children that required multiple CT scans. A long-term follow-up retrospective study was conducted over a 12.75-year period at a single institution. Radio...
#2K. KhasanovaH-Index: 1
Last. E. KizhaevH-Index: 1
view all 8 authors...
#1Alireza Baratloo (Tehran University of Medical Sciences)H-Index: 13
#2Mohammad Taghi Talebian (Tehran University of Medical Sciences)H-Index: 6
Last. Shahram Bagheri-Hariri (Tehran University of Medical Sciences)H-Index: 7
view all 4 authors...
#1Reiko Ideguchi (Nagasaki University)H-Index: 5
#2Koji Yoshida (Nagasaki University)H-Index: 6
Last. Takashi Kudo (Nagasaki University)H-Index: 21
view all 8 authors...
: The use of computed tomography (CT) has increased dramatically over the past several decades and has resulted in a concurrent increase in medical exposure to ionizing radiation. Several recent studies have examined the link between medical radiation and the risk of cancer, especially in children. The cancer risk associated medical exposure has not been definitively confirmed. However, we have to reduce unwarranted medical radiation exposure in pediatric patients. Justification and optimization...
This website uses cookies.
We use cookies to improve your online experience. By continuing to use our website we assume you agree to the placement of these cookies.
To learn more, you can find in our Privacy Policy.