Experimental study on the feasibility of low-dose cone beam computed tomography scanning

doi:10.7518/hxkq.2020.04.011

Abstract

Abstract:

Objective The effects of different tube currents and voltages on image quality and radiation dose were studied to provide a theoretical basis for low-dose cone beam computed tomography (CBCT) scanning in children. Methods Different tube currents and voltages were used to scan the incisor area of fresh Bama pig heads by CBCT. The radiation dose was recorded, and image quality was evaluated. Results As the tube current or voltage decreased, the radiation dose and image quality gradually decreased. The computed tomographic dose index (CTDIvol) of 90 kV, 2.5 mA and 60 kV, 7.0 mA were all 1.7 mGy. The image quality score of the former was higher than that of the latter, and the difference between them was statistically significant (P<0.05). Conclusion Low-dose CBCT scanning appears to be able to reduce the necessary tube current during imaging by improving image quality.

Key words: cone beam computed tomography, low-dose, radiation dosage

CLC Number:

R814.42

Shi Xiong, Li Shengjiao, Zhou Jianping, Zhang Li. Experimental study on the feasibility of low-dose cone beam computed tomography scanning[J]. West China Journal of Stomatology, 2020, 38(4): 415-418.

Figures/Tables 5

References 13

[1]	Loubele M, Bogaerts R, Van Dijck E, et al. Comparison between effective radiation dose of CBCT and MSCT scanners for dentomaxillofacial applications[J]. Eur J Radiol, 2009,71(3):461-468. URL pmid: 18639404
[2]	Ludlow JB, Davies-Ludlow LE, Brooks SL. Dosimetry of two extraoral digital imaging devices: NewTom cone beam CT and Orthophos Plus DS panoramic unit[J]. Dentomaxillofac Radiol, 2003,32(4):229-234.
[3]	Kalra MK, Rizzo S, Maher MM, et al. Chest CT performed with z-axis modulation: scanning protocol and radiation dose[J]. Radiology, 2005,237(1):303-308. URL pmid: 16183938
[4]	潘君龙, 徐亚卡, 余成新, 等. 埋伏阻生牙64排螺旋CT低剂量扫描的应用价值[J]. 放射学实践, 2013,28(5):489-492.
	Pan JL, Xu YK, Yu CX , et al. Application of low dose 64-slice spiral CT in the diagnosis of impacted teeth[J]. Radiol Pract, 2013,28(5):489-492.
[5]	Mozzo P, Procacci C, Tacconi A, et al. A new volumetric CT machine for dental imaging based on the cone-beam technique: preliminary results[J]. Eur Radiol, 1998,8(8):1558-1564.
[6]	Scarfe WC, Farman AG, Sukovic P. Clinical applications of cone-beam computed tomography in dental practice[J]. J Can Dent Assoc, 2006,72(1):75-80. URL pmid: 16480609
[7]	Yajima A, Otonari-Yamamoto M, Sano T, et al. Cone-beam CT (CB Throne) applied to dentomaxillofacial region[J]. Bull Tokyo Dent Coll, 2006,47(3):133-141. doi: 10.2209/tdcpublication.47.133 URL pmid: 17344621
[8]	Palomo JM, Rao PS, Hans MG. Influence of CBCT exposure conditions on radiation dose[J]. Oral Surg Oral Med Oral Pathol Oral Radiol Endod, 2008,105(6):773-782. URL pmid: 18424119
[9]	Qu XM, Li G, Ludlow JB, et al. Effective radiation dose of ProMax 3D cone-beam computerized tomography scanner with defferent dental protocols[J]. Oral Surg Oral Med Oral Pathol Oral Radiol Endod, 2010,110(6):770-776. doi: 10.1016/j.tripleo.2010.06.013 URL pmid: 20952220
[10]	Gamache C, English JD, Salas-Lopez AM, et al. Assessment of image quality in maxillofacial cone-beam computed tomography imaging[J]. Semin Orthod, 2015,21(4):248-253.
[11]	李辉, 季成叶, 宗心南, 等. 中国0~18岁儿童、青少年身高、体重的标准化生长曲线[J]. 中华儿科杂志, 2009,47(7):487-492.
	Li H, Ji CY, Zong XN , et al. Height and weight standardized growth charts for Chinese children and adolescents aged 0 to 18 years[J]. Chin J Pediatr, 2009,47(7):487-492.
[12]	崔淑芳, 陈学进. 实验动物学[M]. 上海: 第二军医大学出版社, 2013: 192-195.
	Cui SF, Chen XJ. Laboratory animal science[M]. Shanghai: Second Military Medical University Press, 2003: 192-195.
[13]	Nickoloff EL, Alderson PO. Radiation exposures to patients from CT reality, public perception, and policy[J]. Am J Roentgenol, 2001,177(2):285-287.

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