Cumulative effective dose and cancer risk for pediatric population in repetitive full spine follow-up imaging: How micro dose is the EOS microdose protocol?

Leixnering, M.; Ma, Wang-Kei; Lau, Damian; Cheung, Kenneth M.C.; Ip, Janice; Yip, Lawrance; Lam, Wendy

doi:10.1016/j.ejrad.2018.02.015

Cited by 14 publications

(13 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In order to estimate the excessive risk of radiation-induced cancer, the cumulative dose of the study population is required. The number of radiographs per year in the current society was extracted from previous studies [3] , [4] , [5] . Data on the cumulative effective dose for eight radiographs using of scientific relationships based on the acceptance of linear no-threshold model were obtained.…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

Data on the estimating the risk of cancer due to some common radiographs in Tehran city

2018

View full text Add to dashboard Cite

The purpose of the data is to estimate the excessive risk of cancer due to some common radiographs in Tehran. The data were collected in 8 radiology centers in Tehran city and on 283 patients with eight radiographic views. To obtain the data, PCXMC 2.0 based on Monte Carlo calculations, has been used to calculate the effective dose of each organ, and annual effective dose. The effective dose, cumulative effective dose, number of radiographs per year and excessive cancer risk due to the type of radiographs calculated. The additional risk of lethal cancer resulting from these radiographs in the target population is about 14.81 cases of the total population of Tehran city in one year.

show abstract

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

Data on the estimating the risk of cancer due to some common radiographs in Tehran city

2018

View full text Add to dashboard Cite

show abstract

“…It is not straightforward to use the PCXMC Monte Carlo algorithm to calculate the effective doses for the slot scanner based beam compared to the conventional X-ray exposure. Thus, the effective dose calculations in MDSS for the chest protocol were obtained using the method described by 25,26 . The 7 beam width and length are 400 mm x 0.5 mm and 360 mm x 0.5 mm for the chest PA and lateral projections respectively.…”

Section: Pcxmc Simulationsmentioning

confidence: 99%

Comparison of Radiation Exposure to the Patient and Contrast Detail Resolutions Across Low Dose 2d/3d Slot Scanner and Two Conventional Digital Radiography X-Ray Imaging Systems

Abdi

Mussmann

Mackenzie

et al. 2019

Radiation Protection Dosimetry

View full text Add to dashboard Cite

Purpose To assess and compare the radiation dose and image quality of the low dose 2D/3D EOS slot scanner (LDSS) to conventional digital radiography (DR) X-ray imaging systems for chest and knee examination protocols. Methods and materials The effective doses (ED) to the patient in the chest and knee clinical examination protocols for LDSS and DR X-ray imaging systems were determined using the dose area product and PCXMC Monte Carlo simulation software. The CDRAD phantom was imaged with 19 cm, and 13 cm thick Polymethyl Methacrylate (PMMA) blocks to simulate the chest and knees respectively of a patient of average adult size. The contrast detail resolution was calculated using image analysis software. Results The EDs for the LDSS default setting were up to 69% and 51% lower than for the DR systems for the chest (speed 4) and knee (speed 6) protocols, respectively, while for the increased dose level setting then the EDs were up to 42% and 35% lower than for the DR systems for the chest (speed 6) and knee (speed 8) protocols respectively. At the default setting, the contrast detail was lowest for the default setting of the 2D/3D low dose slot scanner (LDSS) for both chest and knee examinations, but at the highest dose levels then the threshold were equal or higher than the contrast resolution of DR imaging systems. Conclusion The LDSS has the potential to be used for clinical diagnosis of chest and knee examinations using the higher dose level. For speed 6 in chest protocol and speed 8 in knee protocol, the measured contrast detail resolution was comparable with the DR systems but at a lower effective dose.

show abstract

“…9 Several studies reported a significant association between exposure to high-dose radiation and increased risk of cortical and posterior subcapsular cataract formation or other lenticular changes. 10,11 A CT scan protocol is typically designed to reliably achieve high-quality images for diagnosing all types of brain diseases. Hence, development of low-dose CT scans can reduce patient radiation exposure, which is particularly important for the diagnosis of ICH.…”

Section: Introductionmentioning

confidence: 99%

Benefits of Low-Dose CT Scan of Head for Patients With Intracranial Hemorrhage

Wang

Bian

et al. 2020

Dose-Response

View full text Add to dashboard Cite

Objectives: For patients with intracranial hemorrhage (ICH), routine follow-up computed tomography (CT) scans are typically required to monitor the progression of intracranial pathology. Remarkable levels of radiation exposure are accumulated during repeated CT scan. However, the effects and associated risks have still remained elusive. This study presented an effective approach to quantify organ-specific radiation dose of repeated CT scans of head for patients with ICH. We also indicated whether a low-dose CT scan may reduce radiation exposure and keep the image quality highly acceptable for diagnosis. Methods: Herein, 72 patients with a history of ICH were recruited. The patients were divided into 4 groups and underwent CT scan of head with different tube current–time products (250, 200, 150, and 100 mAs). Two experienced radiologists visually rated scores of quality of images according to objective image noise, sharpness, diagnostic acceptability, and artifacts due to physiological noise on the same workstation. Organ-/tissue-specific radiation doses were analyzed using Radimetrics. Results: In conventional CT scan group, signal to noise ratio (SNR) and contrast to noise ratio (CNR) of ICH images were significantly higher than those in normal brain structures. Reducing the tube current–time product may decrease the image quality. However, the predilection sites for ICH could be clearly identified. The SNR and CNR in the predilection sites for ICH were notably higher than other areas. The brain, eye lenses, and salivary glands received the highest radiation dose. Reducing tube current–time product from 250 to 100 mA can significantly reduce the radiation dose. Discussion: We demonstrated that low-dose CT scan of head can still provide reasonable images for diagnosing ICH. The radiation dose can be reduced to ∼45% of the conventional CT scan group.

show abstract

Cumulative effective dose and cancer risk for pediatric population in repetitive full spine follow-up imaging: How micro dose is the EOS microdose protocol?

Cited by 14 publications

References 15 publications

Data on the estimating the risk of cancer due to some common radiographs in Tehran city

Data on the estimating the risk of cancer due to some common radiographs in Tehran city

Comparison of Radiation Exposure to the Patient and Contrast Detail Resolutions Across Low Dose 2d/3d Slot Scanner and Two Conventional Digital Radiography X-Ray Imaging Systems

Benefits of Low-Dose CT Scan of Head for Patients With Intracranial Hemorrhage

Contact Info

Product

Resources

About