Children Age Dependent Chest Tube Voltage Settings for Optimizing Radiation Dose and Image Quality: A Prospective Clinical Study_Chinese Journal of Evidence-Based Medicine

Authors：

GUO Hui ¹ , ABULIZI Aierken ¹ , AIHEMAITI Nuer ¹ , LI Youping ² , ZENG Qunli ¹ ,  LI Baiyan ¹

1. Imaging Center, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China;2. Chinese Evidence-Based Medicine Center, West China Hospital, Sichuan University, Chengdu 610041, China;

Corresponding author：

LI Baiyan, Email: byl0318@163.com

Keywords：

Digital radiography; Children chest; Radiation dose; Image quality; Randomized controlled trial

DOI：

10.7507/1672-2531.20130069

Video：

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Abstract Full text Figures/Tables Video References Cited by

Objective 　To explore the feasibility of children age dependent chest tube voltage settings for optimizing radiation dose and image quality in digital radiography (DR).
Methods 　Children aged 0 to 14 who visited the First Affiliated Hospital of Xinjiang Medical University from January, 2008 to December, 2010, were divided into the following 5 age groups: 0~, 1~, 3~, 7~, and 11~14-year-old, and each group was then randomly assigned to the optimization and control groups to take DR by computer. DR in automatic exposure control with different tube voltage depending on children age; the control group: DR in automatic exposure control with conventional fixed tube voltage. The dose area product (DAP) was adopted for the measurement of radiation dose, while the visual grading analysis score (VGAS) was for image quality. Then SPSS 17.0 was applied for statistical analysis.
Results 　A total of 2 450 children were initially included. Finally there were 2 415 children included in the anteroposterior chest image in this study, and the other 35 children were excluded for their anatomical characteristics could not be showed due to serious primary diseases. There were 1 202 patients in the optimization group and 1 213 patients in the controlled group. The mean DAP in the optimization group was lower than that in the control group with a significant difference (t= –4.967, P=0.008). The mean VGAS in the optimization group was higher than that in the control group with a significant difference (t= 23.738, P=0.000).
Conclusion 　Children age dependent tube voltage settings can effectively reduce radiation dose and improve image quality at the same time.

Citation： GUO Hui,ABULIZI Aierken,AIHEMAITI Nuer,LI Youping,ZENG Qunli,LI Baiyan. Children Age Dependent Chest Tube Voltage Settings for Optimizing Radiation Dose and Image Quality: A Prospective Clinical Study. Chinese Journal of Evidence-Based Medicine, 2013, 13(4): 409-412. doi: 10.7507/1672-2531.20130069 Copy

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11.	朱小忠, 张晓明, 张彦彩. 浅谈儿童X线检查的现状及合理化防护. 卫生职业教育, 2011, 29(4): 144-145.
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14.	Doherty P, O’Leary D, Brennan PC. Do CEC guidelines under-utilise the full potential of increasing kVp as a dose-reducing tool? Eur Radiol, 2003, 13(8): 1992-1999.
15.	Geijer H, Norrman E, Persliden J. Optimizing the tube potential for lumbar spine radiography with a flat-panel digital detector. Br J Radiol, 2009, 82(973): 62-68.
16.	郭辉, 张铁亮, 努尔, 等. 优化婴幼儿胸部DR图像质量和辐射剂量的前瞻性临床研究. 中国循证医学杂志, 2011, 11(10): 1129-1132.

1. Willis CE. Optimizing digital radiography of children. Eur J Radiol, 2009, 72(2): 266-273.
2. Slovis TL, Frush DP. Biological effects of diagnostic radiation on children. In Slovis TL, ed. Caffey’s Pediatric Diagnostic Imaging. Philadephia: Elsevier 2007: 3-12.
3. International Commission on Radiological Protection 60:1990 Recommendations of the International Commission on Radiological Protection. Annals of the ICRP, 1991, 21(1-3): 1-201.
4. Vano E. ICRP recommendations on “managing patient dose in digital radiology”(invited paper). Radiat Prot Dos, 2005, 114(1-3): 126-130.
5. Busch HP, Faulkner K. Image quality and dose management in digital radiography: a new paradigm for optimization. Radiat Prot Dos, 2006, 117(1-3): 143-147.
6. Donnelly LF. Reducing radiation dose associated with pediatric CT by decreasing unnecessary examinations. AJR Am J Poentgenol, 2005, 184(2): 655-657.
7. Dougeni ED, Delis HB, Karatza AA, et al. Dose and image quality optimization in neonatal radiography. Brit J Radiol, 2007, 80(958): 807-815.
8. 孙建忠, 王志康, 章伟敏, 等. 直接X 线成像受检者照射剂量及图像质量的实时监测. 中华放射学杂志, 2009, 43(12): 1264-1267.
9. Bath M, Mansson LG. Visual grading characteristics (VGC) analysis:a non-parametric rank-invariant statistical method for image quality evaluation. Br J Radiol, 2007, 80(951): 169-176.
10. Fink C, Hallscheidt PJ, Noeldge G, et al. Clinical comparative study with a large-area amorphous silicon flat-panel detector: image quality and visibility of anatomic structures on chest radiography. AJR, 2002, 178(2): 481-486.
11. 朱小忠, 张晓明, 张彦彩. 浅谈儿童X线检查的现状及合理化防护. 卫生职业教育, 2011, 29(4): 144-145.
12. Billinger J, Nowotny R, Homolka P. Diagnostic reference levels in pediatric radiology in Austria. Eur Radiol, 2010, 20(7): 1572-1579.
13. Yoshimura EM, Ribeiro LA. Entrance surface dose measurements in pediatric radiological examinations. Radiat Meas, 2008, 43(2-6): 972-976.
14. Doherty P, O’Leary D, Brennan PC. Do CEC guidelines under-utilise the full potential of increasing kVp as a dose-reducing tool? Eur Radiol, 2003, 13(8): 1992-1999.
15. Geijer H, Norrman E, Persliden J. Optimizing the tube potential for lumbar spine radiography with a flat-panel digital detector. Br J Radiol, 2009, 82(973): 62-68.
16. 郭辉, 张铁亮, 努尔, 等. 优化婴幼儿胸部DR图像质量和辐射剂量的前瞻性临床研究. 中国循证医学杂志, 2011, 11(10): 1129-1132.

Chinese Journal of Evidence-Based Medicine

Children Age Dependent Chest Tube Voltage Settings for Optimizing Radiation Dose and Image Quality: A Prospective Clinical Study

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