Estimating pediatric entrance skin dose from digital radiography examination using DICOM metadata: A quality assurance tool

2015 ◽  
Vol 42 (5) ◽  
pp. 2489-2497 ◽  
Author(s):  
S. L. Brady ◽  
R. A. Kaufman
2017 ◽  
Vol 35 (4) ◽  
pp. 343
Author(s):  
Wiwat Owasirikul ◽  
Woranut Iampa ◽  
Tipvimol Meechai ◽  
Khaisang Chousangsuntorn ◽  
Napapong Pongnapang

Objective: To estimate entrance skin dose (ESD) of digital radiography (DR) examination using displayed dose area product (DAP)Material and Method: The functional relation between calculated ESD using x-ray tube output principle and displayed DAP were investigated. The displayed DAP was obtained from whole body phantom which underwent seven projections: skull anteroposterior (AP), skull lateral (Lat), chest posteroanterior (PA), abdomen AP, pelvis AP, lumbar spine AP and l umbar spine Lat. The estimating results were analyzed and compared with two other methods using one-way analysis of variance.Results: The high relation between the ESD calculated and the displayed DAP were founded with simple equation: ESD=0.0017.DAP+0.1546 (R2=0.88) The mean ESD estimated performed by DR examination with automatic exposure control (AEC) mode using our method, Mcparland method and Kisilewicz method were 1.07, 1.13 and 0.89 whereas without AEC mode were 3.25, 3.45 and 2.60 respectively. There was provided no statistically significant difference between our approach and two other methods (p-value>0.010).Conclusion: The displayed DAP can be used to estimate the ESD.  


2020 ◽  
Vol 190 (1) ◽  
pp. 31-37
Author(s):  
Zeinab Hoseini Motlagh ◽  
Ali Shabestani Monfared ◽  
Mohammad Reza Deevband ◽  
Razzagh Abedi-Firouzjah ◽  
Naser Ghaemian ◽  
...  

Abstract Introduction The main purpose of this study was to determine the diagnostic reference level (DRL) for routine digital radiography examinations in Mazandaran province. Materials and methods Thirteen digital radiographic examinations at 18 high-patient-load radiography centres were investigated. The indirect dosimetry method was performed based on the IAEA report. Average entrance skin dose (ESD) and the third quartile of ESD as the DRL were evaluated from the measurement made by a semiconductor dosemeter. Results DRL for the examinations of digital radiography was obtained as: Skull (postero-anterior [PA]): 2.2, skull (lateral [LAT]): 2.4, cervical spine (antero-posterior [AP]): 1.6, cervical spine (LAT): 1.7, thoracic spine (AP): 3.6, thoracic spine (LAT): 9.9, lumbar spine (AP): 5.3, lumbar spine (LAT): 11.8, chest (PA): 1.4, chest (LAT): 2.1, abdomen (AP): 4.3, pelvis (AP): 3.2 and hip (AP): 2.1 mGy. Conclusion Although DRL was not higher compared with the international organisations’ levels, it can be reduced by adequate training of radiographers.


Author(s):  
Akintayo Daniel Omojola ◽  
Michael Onoriode Akpochafor ◽  
Samuel Olaolu Adeneye ◽  
Isiaka Olusola Akala ◽  
Azuka Anthonio Agboje

2015 ◽  
Vol 7 (5) ◽  
Author(s):  
Akbar Aliasgharzadeh ◽  
Ehsan Mihandoost ◽  
Mahboubeh Masoumbeigi ◽  
Morteza Salimian ◽  
Mehran Mohseni

2010 ◽  
Vol 112 (6) ◽  
pp. 530-536 ◽  
Author(s):  
Mikito Hayakawa ◽  
Takashi Moritake ◽  
Fumikatsu Kataoka ◽  
Tomoji Takigawa ◽  
Yasuhiro Koguchi ◽  
...  

2012 ◽  
Vol 39 (6Part22) ◽  
pp. 3877-3877
Author(s):  
K Kanal ◽  
R Dickinson ◽  
D Zamora ◽  
W Cohen ◽  
K Valji ◽  
...  
Keyword(s):  

2020 ◽  
Vol 190 (1) ◽  
pp. 100-107
Author(s):  
Aydın Parmaksız ◽  
Gökçe K Ataç ◽  
Emine Bulur ◽  
Tolga İnal ◽  
Aslıhan Alhan

Abstract In order to establish national diagnostic reference levels for mammography examinations, entrance skin air kerma, entrance skin dose and average glandular doses (AGDs) were calculated for a total of 25 624 cranio-caudal (CC) and mediolateral oblique (MLO) projections of 6309 patients for 40–49 and 50–64 age groups. The average entrance skin air kerma and entrance skin dose values for both age groups were found to be higher in MLO projections compared with CC projections. The minimum and maximum values of AGDs were determined as 0.4 and 7.9 mGy for both projections. The maximum numbers of AGDs for CC and MLO projections were calculated in the range of 1.1–1.5 and 1.6–2.0 mGy, respectively. The third quartile values of AGDs were calculated for each compressed breast thickness between 20 and 99 mm. The first national diagnostic reference levels of the country were established for each 10-mm compressed breast thickness in mammography examinations.


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