Literature DB >> 26567324

OVERVIEW, PRACTICAL TIPS AND POTENTIAL PITFALLS OF USING AUTOMATIC EXPOSURE CONTROL IN CT: SIEMENS CARE DOSE 4D.

Marcus Söderberg1.   

Abstract

Today, computed tomography (CT) systems routinely use automatic exposure control (AEC), which modulates the tube current. However, for optimal use, there are several aspects of an AEC system that need to be considered. The purpose of this study was to provide an overview of the Siemens CARE Dose 4D AEC system, discuss practical tips and demonstrate potential pitfalls. Two adult anthropomorphic phantoms were examined using two different Siemens CT systems. When optimising the CT radiation dose and image quality, the projection angle of the localiser, patient centring, protocol selection, scanning direction and the use of protective devices requires special attention.
© The Author 2015. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

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Year:  2015        PMID： 26567324     DOI： 10.1093/rpd/ncv459

Source DB:  PubMed          Journal:  Radiat Prot Dosimetry        ISSN： 0144-8420            Impact factor:   0.972


  8 in total

1.  CT dose modulation using automatic exposure control in whole-body PET/CT: effects of scout imaging direction and arm positioning.

Authors:  Yusuke Inoue; Kazunori Nagahara; Hiroko Kudo; Hiroyasu Itoh
Journal:  Am J Nucl Med Mol Imaging       Date:  2018-04-25

2.  Effect of arm position, presence of medical devices, and off-centering during acquisition of scout image on automatic tube voltage selection and current modulation in pediatric chest CT.

Authors:  Young Jin Ryu; Young Hun Choi; Jung-Eun Cheon; Ji Eun Park; Woo Sun Kim; In-One Kim
Journal:  PLoS One       Date:  2018-04-17       Impact factor: 3.240

3.  CARE Dose 4D combined with sinogram-affirmed iterative reconstruction improved the image quality and reduced the radiation dose in low dose CT of the small intestine.

Authors:  Lin Wang; Shenchu Gong; Jushun Yang; Jie Zhou; Jing Xiao; Jin-Hua Gu; Hong Yang; Jianfeng Zhu; Bosheng He
Journal:  J Appl Clin Med Phys       Date:  2018-12-03       Impact factor: 2.102

4.  A comparison of breast and lung doses from chest CT scans using organ-based tube current modulation (OBTCM) vs. Automatic tube current modulation (ATCM).

Authors:  Rick R Layman; Anthony J Hardy; Hyun J Kim; Ei Ne Chou; Maryam Bostani; Chris Cagnon; Dianna Cody; Michael McNitt-Gray
Journal:  J Appl Clin Med Phys       Date:  2021-05-03       Impact factor: 2.102

5.  Is It Better to Enter a Volume CT Dose Index Value before or after Scan Range Adjustment for Radiation Dose Optimization of Pediatric Cardiothoracic CT with Tube Current Modulation?

Authors:  Hyun Woo Goo
Journal:  Korean J Radiol       Date:  2018-06-14       Impact factor: 3.500

6.  Radiation doses in CT examinations from the West China Hospital, Sichuan University and setting local diagnostic references levels.

Authors:  Zhenlin Li; Jinge Zhang; Chunchao Xia; Fei Zhao; Kai Zhang; Yuming Li; Lei Li; Jin Pu; Wanlin Peng; Keling Liu; Yingkun Guo
Journal:  Ann Transl Med       Date:  2020-08

7.  Relationship between size-specific dose estimates and image quality in computed tomography depending on patient size.

Authors:  Hiroki Kawashima; Katsuhiro Ichikawa; Shinsuke Hanaoka; Kosuke Matsubara; Tadanori Takata
Journal:  J Appl Clin Med Phys       Date:  2018-05-04       Impact factor: 2.102

8.  Optimisation of CT protocols in PET-CT across different scanner models using different automatic exposure control methods and iterative reconstruction algorithms.

Authors:  Sarah-May Gould; Jane Mackewn; Sugama Chicklore; Gary J R Cook; Andrew Mallia; Lucy Pike
Journal:  EJNMMI Phys       Date:  2021-07-31
  8 in total

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