high radiation dose
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BMJ Open ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. e041883
Author(s):  
Cécile R L P N Jeukens ◽  
Hub Boere ◽  
Bart A J M Wagemans ◽  
Patty J Nelemans ◽  
Estelle C Nijssen ◽  
...  

ObjectiveHigh radiation exposure is a concern because of the association with cancer. The objective was to determine the probability of receiving a high radiation dose from CT (from one or more examinations within a 5-year period) and to assess the clinical context by evaluating clinical indications in the high-dose patient group.DesignObservational cohort study. Effective radiation dose received from one or more CT examinations within a predefined 5-year calendar period was assessed for each patient.SettingHospital setting.ParticipantsAll patients undergoing a diagnostic CT examination between July 2013 and July 2018 at the Maastricht University Medical Center.Primary and secondary outcome measuresThe primary outcome was the probability of receiving a high effective dose, defined as ≥100 mSv, from one or more CT examinations within 5 years as derived from a time-to-event analysis. Secondary outcomes were the clinical indication for the initial scan of patients receiving a high effective dose.Results100 672 CT examinations were performed among 49 978 patients including 482 (1%) who received a high radiation dose. The estimated probability of a high effective dose from a single examination is low (0.002% (95% CI 0.00% to 0.01%)). The 4.5-year probability of receiving a high cumulative effective dose was 1.9% (95% CI 1.6% to 2.2%) for women and 1.5% (95% CI 1.3% to 1.7%) for men. The probability was highest in age categories between 51 and 74 years. A total of 2711 (5.5%) of patients underwent more than six CT examinations, and the probability of receiving a high effective dose was 16%. Among patients who received a high effective dose, most indications (80%) were oncology related.ConclusionsThe probability of receiving a high radiation dose from CT examinations is small but not negligible. In the majority (80%) of high effective dose receiving patients, the indication for the initial CT scan was oncology related.


2021 ◽  
Author(s):  
G. A. Timofeev ◽  
N. N. Potrakhov ◽  
A. S. Dmitriev ◽  
R. A. Bahtiev

2019 ◽  
Vol 26 (2) ◽  
pp. 163-169 ◽  
Author(s):  
Brandon C. Perry ◽  
Christopher R. Ingraham ◽  
Brent K. Stewart ◽  
Karim Valji ◽  
Kalpana M. Kanal

2014 ◽  
Vol 51 (7-8) ◽  
pp. 944-950 ◽  
Author(s):  
Chikara Ito ◽  
Hiroyuki Naito ◽  
Akihiko Nishimura ◽  
Hironori Ohba ◽  
Ikuo Wakaida ◽  
...  

2012 ◽  
Vol 47 (10) ◽  
pp. 981-987 ◽  
Author(s):  
Z. Yegingil ◽  
N. Nur ◽  
T. Dogan ◽  
N. Yazici ◽  
M. Topaksu

2012 ◽  
Vol 24 (9) ◽  
pp. 742-744 ◽  
Author(s):  
Sanjay Kher ◽  
Smita Chaubey ◽  
Raman Kashyap ◽  
Shrikant Madhusudan Oak

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