Reduced-dose chest CT with 3D automatic exposure control vs. standard chest CT: Quantitative assessment of emphysematous changes in smokers’ lung parenchyma

2012 ◽  
Vol 81 (6) ◽  
pp. 1330-1334 ◽  
Author(s):  
Hisanobu Koyama ◽  
Yoshiharu Ohno ◽  
Youichi Yamazaki ◽  
Keiko Matsumoto ◽  
Yumiko Onishi ◽  
...  
Keyword(s):  
Quantitative Assessment ◽  
Lung Parenchyma ◽  
Chest Ct ◽  
Exposure Control ◽  
Automatic Exposure Control ◽  
Reduced Dose

scholarly journals Is Weight-Based Adjustment of Automatic Exposure Control Necessary for the Reduction of Chest CT Radiation Dose?

2010 ◽  
Vol 11 (1) ◽  
pp. 46 ◽  
Author(s):  
Priyanka Prakash ◽  
Mannudeep K. Kalra ◽  
Matthew D. Gilman ◽  
Jo-Anne O. Shepard ◽  
Subba R. Digumarthy
Keyword(s):  
Radiation Dose ◽  
Chest Ct ◽  
Exposure Control ◽  
Automatic Exposure Control ◽  
Ct Radiation

scholarly journals ANALYSIS OF THE EFFECT OF CARE DOSE 4D SOFTWARE USE ON IMAGE QUALITY AND RADIATION DOSE ON THE CT SCAN ABDOMEN

2020 ◽  
Vol 5 (1) ◽  
pp. 31-40
Author(s):  
Ni Larasati Kartika Sari ◽  
Merry Suzana ◽  
Muzilman Muslim ◽  
Dewi Muliyati
Keyword(s):  
Image Quality ◽  
Radiation Dose ◽  
Power Spectrum ◽  
Ct Scan ◽  
Noise Power ◽  
Exposure Control ◽  
Automatic Exposure Control ◽  
Ct Number ◽  
Still Image ◽  
Reduced Dose

The CT Scan is the most significant contributor to radiation dose on radiological examination, although the frequency of the examination is far below other modalities. In order to control this radiation dose, manufactures of CT Scan have equipped their units with built-in software called Automatic Exposure Control (AEC). This study aims to analyze the effect of AEC software, CARE Dose 4D, on image quality, and CTDIvol. Objects used in this study were three water phantoms, each with a diameter of 165 mm, 230 mm, and 305 mm. The image quality-analyzed was CT Number and noise. Measurement of image quality was carried out following Bapeten's provisions. Noise Power Spectrum (NPS) graphics were also used to further observes noise texture. The CT Number accuracy, CT Number, and noise uniformity obtained with and without CARE Dose 4D, on the three phantoms were still within Bapeten's threshold. This indicates that the use of CARE Dose 4D can still image a homogeneous object accurately. The results of the NPS curve showed that the two modes, in three phantoms, were having the same noise texture. The NPS curves also showed that the use of CARE Dose 4D produces higher noise than the non-CARE Dose 4D mode. Meanwhile, there were significant differences from the CTDIvol obtained from the two modes. The use of CARE Dose 4D software reduced dose of up to 54.34%. From this, the use of CARE Dose 4D software can reduce the radiation dose while maintaining image quality.

SIMULATING LOCAL DENSE AREAS USING PMMA TO ASSESS AUTOMATIC EXPOSURE CONTROL IN DIGITAL MAMMOGRAPHY

2016 ◽  
Vol 169 (1-4) ◽  
pp. 143-150 ◽  
Author(s):  
R. W. Bouwman ◽  
J. Binst ◽  
D. R. Dance ◽  
K. C. Young ◽  
M. J. M. Broeders ◽  
...  
Keyword(s):  
Digital Mammography ◽  
Exposure Control ◽  
Automatic Exposure Control
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