scholarly journals CT radiation dose and radiation reduction strategies

2011 ◽  
Vol 54 (12) ◽  
pp. 1262 ◽  
Author(s):  
Michael Yong Park ◽  
Seung Eun Jung
2013 ◽  
Vol 201 (6) ◽  
pp. 1283-1290 ◽  
Author(s):  
Justin E. Costello ◽  
Nathan D. Cecava ◽  
Jonathan E. Tucker ◽  
Jennifer L. Bau

2013 ◽  
Vol 54 (9) ◽  
pp. 998-1006 ◽  
Author(s):  
Carolyn Young ◽  
Catherine M Owens

The use of computed tomography (CT) in pediatric diagnostic imaging is demanding generally, but when coupled with an awareness to limit the radiation dose associated with this imaging modality, the procedure becomes challenging. Although new techniques have been developed in line with the introduction of faster multidetector computed tomography (MDCT) scanners to aid radiation reduction, it still remains the responsibility of the clinical practitioner to ensure each examination request is justified and the scanning protocol and parameters selected are optimized to the individual patient's requirement. It is the purpose of this article to outline the basic principle of CT radiation dose optimization based on modification of scanning parameters and application of different imaging techniques.


2009 ◽  
Vol 192 (5) ◽  
pp. 1292-1303 ◽  
Author(s):  
Mervyn D. Cohen

Radiology ◽  
2005 ◽  
Vol 236 (2) ◽  
pp. 671-675 ◽  
Author(s):  
Tejas Dalal ◽  
Mannudeep K. Kalra ◽  
Stefania M. R. Rizzo ◽  
Bernhard Schmidt ◽  
Christoph Suess ◽  
...  

2020 ◽  
Author(s):  
Dechuan Zhang ◽  
Longling Fan ◽  
Xuqian Liang ◽  
Teiying Yin ◽  
Qigen Li ◽  
...  

Abstract Objective To explore the influence of patient’s individual factors on the radiation dose in chest computed tomography (CT) scan. Methods Based on the clinical chest CT scan scheme and the scanning conditions were unified, Basic data of 103 patients who underwent chest CT scanning, including gender, age, height, weight and underlying diseases, were prospectively collected, and the dose length product (DLP) of each patient was recorded, Multivariate regression analysis was made on the obtained data. Results Under the same scanning parameters, image quality had no significant effect on chest CT radiation dose (P = 0.404 > 0.05); among the 103 cases, there were 20 kinds of basic diseases, only calcified lesion has a significant effect on chest CT radiation dose (P = 0.009 < 0.05), the other had no significant effects (P > 0.05); the major effect individual factors of radiation dose in CT scan were: gender (P = 0.000003 < 0.05), age (P = 0.016 < 0.05), height (P = 0.000021 < 0.05), weight (P = 4.30E-16 < 0.05). Age (P = 8.08E-8 < 0.05) and weight (P = 5.52E-21 < 0.05) were the only decisive factors in multiple regression analysis, while other influencing factors were not decisive (P > 0.05). The regression model was as follows: DLP=-39.45 + 2.19*age + 5.54*weight, the coefficient of multiple correlation R being 0.786, F(2,100) = 77.128, P < 0.01. Mean that gradually increase in age was related with 2.19 mGy∙cm increase in the DLP value, 1 kg increase in weight was associated with 5.54 mGy∙cm increase in the DLP value. Conclusion For chest CT, age and weight are the major impact individual factors of radiation dose. This model has shown obvious clinical significance and can provide solid theoretical basis for clinical application in reducing the radiation dose in chest CT.


2011 ◽  
Vol 197 (4) ◽  
pp. 935-940 ◽  
Author(s):  
Elias J. Antypas ◽  
Farnoosh Sokhandon ◽  
Michael Farah ◽  
Scott Emerson ◽  
Kostaki G. Bis ◽  
...  

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