Vertical Off-Centering in Reduced Dose Chest-CT: Impact on Effective Dose and Image Noise Values

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Vertical Off-Centering in Reduced Dose Chest-CT: Impact on Effective Dose and Image Noise Values

机译：减少剂量胸部CT的垂直偏心：对有效剂量和图像噪声值的影响

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摘要

Objectives: To assess the effect of vertical off-centering in tube current modulation (TCM) on effective-dose and image-noise in reduced-dose (RD) chest-CT.

机译：目的：评估垂直偏心在管式电流调制（TCM）中的效果对减少剂量（RD）胸部CT的有效剂量和图像噪声。

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《Academic radiology》 |2020年第4期|共10页
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正文语种 eng
中图分类放射医学;
关键词
Vertical Off-centering; Image quality; Noise; Radiation dose; Automated Tube Current Modulation; ATM;

机译：垂直偏心;图像质量;噪音;辐射剂量;自动管电流调制;ATM;

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专利

1. Vertical Off-Centering in Reduced Dose Chest-CT: Impact on Effective Dose and Image Noise Values [J] . Academic radiology . 2020,第4期

机译：减少剂量胸部CT的垂直偏心：对有效剂量和图像噪声值的影响
2. Impact of image noise levels, scout scan dose and lens shield on image quality and radiation exposure in z-axis dose-modulated neck MSCT on 16- and 64-slice Toshiba Aquilion scanners. [J] . Bauknecht HC, Jach C, Bohner European Journal of Radiology . 2010,第2期

机译：在16层和64层Toshiba Aquilion扫描仪的z轴剂量调制颈部MSCT中，图像噪声水平，侦察扫描剂量和镜头护罩对图像质量和辐射暴露的影响。
3. Radionuclide bone scan SPECT-CT: lowering the dose of CT significantly reduces radiation dose without impacting CT image quality [J] . Sandeep Kumar Gupta, Scott Trethewey, Bree Brooker, American Journal of Nuclear Medicine and Molecular Imaging . 2017,第2期

机译：放射性核素骨扫描SPECT-CT：降低CT剂量可显着减少放射剂量，而不会影响CT图像质量
4. Reducing the impact of reticle CD-non-uniformity of multiple structures by dose corrections based on aerial image measurements [C] . Ute Buttgereit, Robert Birkner, Thomas Scheruebl, Conference on metrology, inspection, and process control for microlithography XXIV . 2010

机译：通过基于航空影像测量的剂量校正来减少多种结构的标线片CD不均匀性的影响
5. Reducing mammography X -ray dose by removing image noise [D] . Roden, Mark McKenzie 2009

机译：通过消除图像噪声来减少乳房X线摄影的X射线剂量
6. Radionuclide bone scan SPECT-CT: lowering the dose of CT significantly reduces radiation dose without impacting CT image quality [O] . Sandeep Kumar Gupta, Scott Trethewey, Bree Brooker, 2017

机译：放射性核素骨扫描SPECT-CT：降低CT剂量可显着减少放射剂量而不会影响CT图像质量
7. Figure 6: Image quality of extracolonic structures represented by image noise in the aorta and the left psoas muscle (A) and rating of image quality (IQ) of the left adrenal gland (B, 1 = excellent, 5 = unevaluable) demonstrate substantial decrease in the image noise especially in ULD with the IMR technique. Diagnostic performance for extracolonic findings grouped by C-RADS classification is reduced in the E2 category (unimportant findings) for low-dose acquisitions reconstructed with FBP and HIR (C). [O] . -1

机译：图6：由主动脉的图像噪声和左肾上腺左侧肌肉（A）和左肾上腺（B，1 =优异，5 =不值为）的图像质量（IQ）所示的胚胎结构的图像质量和额定值表现出大量的减少在图像噪声中，特别是在ULD中具有IMR技术。通过FBP和HIR（C）重建的E2类别（不重要调查结果）降低了C-RADS分类分类的诊断性能。
8. Impact of Reduced Dose Limits on NRC Licensed Activities. Major Issues in the Implementation of ICRP/NCRP Dose Limit Recommendations [R] . Meinhold, C. B. 1995

机译：减少剂量限制对NRC许可活动的影响。实施ICRp / NCRp剂量限制建议的主要问题

Vertical Off-Centering in Reduced Dose Chest-CT: Impact on Effective Dose and Image Noise Values

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