The reduction of dose in paediatric panoramic radiography: the impact of collimator height and programme selection

Davis, Alyson; Safi, Hannah; Maddison, S M

doi:10.1259/dmfr.20140223

Cited by 21 publications

(21 citation statements)

References 12 publications

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“…These values are slightly higher than measurements found in other studies using the Rando adult phantoms and TLDs [6,[17][18][19][20][21]. In a study by Davis et al, [22] the effective dose measured using a short collimator was 7.7 microsieverts.…”

Section: Discussionmentioning

confidence: 60%

“…A study done by Davis et al, found that a short collimator should be used, and settings should produce a reduced exposure time and allow for reduction of tube current. Protocol selection should also provide flexibility for focal trough size, shape, and position to match the smaller head size [22]. A study done by Hayakawa et al, found that when lower kVp or mA settings were used for the Orthophos P10 and the PM 2002 CC panoramic units, absorbed doses were effectively reduced for all combinations of machines, programs, and detectors [9].…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

A representative study of pediatric panoramic and cephalometric radiation exposure to organs of the head and neck

Peikidis¹,

Ad²,

Rd³

et al. 2016

J Radiol Imaging.

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Section: Discussionmentioning

confidence: 60%

Section: Discussionmentioning

confidence: 99%

A representative study of pediatric panoramic and cephalometric radiation exposure to organs of the head and neck

Peikidis¹,

Ad²,

Rd³

et al. 2016

J Radiol Imaging.

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“…Previous research reported that diagnostic X-rays may increase the incidence of leukaemia and brain cancer and may have the potential to trigger the onset of any type of cancer in children 3 . Even if the expected amount of radiation is minor in dental panoramic radiography, efforts to apply it carefully and to reduce the dose are essential for paediatric patients 4,5 .…”

Section: Introductionmentioning

confidence: 99%

Efficacy of the Monte Carlo method and dose reduction strategies in paediatric panoramic radiography

Lee

Park

Lee

et al. 2019

Sci Rep

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Monte Carlo (MC) simulation is a simpler radiation dose assessment method than the conventional method, thermoluminescent dosimetry (TLD). MC simulation and TLD were compared as tools to evaluate the effective dose from paediatric panoramic radiography. Various exposure conditions and machine geometries were simulated using the MC method to investigate factors resulting in effective dose reduction. The effective dose of paediatric panoramic radiography was obtained using an MC simulation and its reliability was verified by a comparison with the value obtained using TLD. Next, 7 factors determining the effective dose in the MC simulation were input with 6 equally-spaced values, and a total of 36 simulations were performed to obtain effective dose values. The correlations between each dose-determining factor and the resulting effective dose were evaluated using linear regression analysis. The TLD-measured dose was 3.850 µSv, while the MC simulation yielded a dose of 3.474 µSv. Beam height was the factor that most strongly influenced the effective dose, while rotation angle and focus-to-patient distance were the least influential factors. MC simulation is comparable to TLD for obtaining effective dose values in paediatric panoramic radiography. Obtaining panoramic radiography with a short beam height can effectively reduce the dose in paediatric patients.

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“…1 During dental panoramic tomography of children, a dose reduction of 20-40% can be achieved through segmented programmes, and a dose reduction of 57% to the brain and 41% to the eyes can be achieved by vertical field size reduction. 2,3 Reduction of image size is an easy, achievable and useful way to minimize the radiation dose of the radiosensitive organs that are located in the maxillomandibular area.…”

Section: Introductionmentioning

confidence: 99%

Application of segmented dental panoramic tomography among children: positive effect of continuing education in radiation protection

Esmaeili¹,

Waltimo‐Sirén²,

Laatikainen³

et al. 2016

Dentomaxillofacial Radiology

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Objectives: Dental panoramic tomography is the most frequent examination among 7-12-year olds, according to the Radiation Safety and Nuclear Authority of Finland. At those ages, dental panoramic tomographs (DPTs) are mostly obtained for orthodontic reasons. Children's dose reduction by trimming the field size to the area of interest is important because of their high radiosensitivity. Yet, the majority of DPTs in this age group are still taken by using an adult programme and never by using a segmented programme. The purpose of the present study was to raise the awareness of dental staff with respect to children's radiation safety, to increase the application of segmented and child DPT programmes by further educating the whole dental team and to evaluate the outcome of the educational intervention. Methods: A five-step intervention programme, focusing on DPT field limitation possibilities, was carried out in community-based dental care as a part of mandatory continuing education in radiation protection. Application of segmented and child DPT programmes was thereafter prospectively followed up during a 1-year period and compared with our similar data from 2010 using a logistic regression analysis. Results: Application of the child programme increased by 9% and the segmented programme by 2%, reaching statistical significance (odds ratios 1.68; 95% confidence interval 1.23-2.30; p-value , 0.001). The number of repeated exposures remained at an acceptable level. The segmented DPTs were most frequently taken from the maxillary lateral incisor-canine area. Conclusions: The educational intervention resulted in improvement of radiological practice in respect to radiation safety of children during dental panoramic tomography. Segmented and child DPT programmes can be applied successfully in dental practice for children. Dentomaxillofacial Radiology (2016) 45, 20160104. doi: 10.1259/dmfr.20160104 Cite this article as: Pakbaznejad Esmaeili E, Waltimo-Sirén J, Laatikainen T, Haukka J, Ekholm M. Application of segmented dental panoramic tomography among children: positive effect of continuing education in radiation protection. Dentomaxillofac Radiol 2016; 45: 20160104.

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The reduction of dose in paediatric panoramic radiography: the impact of collimator height and programme selection

Cited by 21 publications

References 12 publications

A representative study of pediatric panoramic and cephalometric radiation exposure to organs of the head and neck

A representative study of pediatric panoramic and cephalometric radiation exposure to organs of the head and neck

Efficacy of the Monte Carlo method and dose reduction strategies in paediatric panoramic radiography

Application of segmented dental panoramic tomography among children: positive effect of continuing education in radiation protection

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