3D automatic exposure control for 64-detector row CT: Radiation dose reduction in chest phantom study

Matsumoto, Keiko; Ohno, Yoshiharu; Koyama, Hisanobu; Kono, Ayumi; Inokawa, Hiroyasu; Onishi, Yoshiaki; Nogami, Munenobu; Takenaka, Daisuke; Araki, Tsutomu; Sugimura, Kazuro

doi:10.1016/j.ejrad.2009.09.012

Cited by 17 publications

(7 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…). The reason that low kVp CT scans are of low image quality is the higher absorption of low‐energy photons . ASIR can overcome some of these disadvantages and affect SNR and SD.…”

Section: Discussionmentioning

confidence: 99%

Adrenal and nephrogenic hypertension: an image quality study of low tube voltage, low-concentration contrast media combined with adaptive statistical iterative reconstruction

Shen

et al. 2016

Int J Clin Pract

View full text Add to dashboard Cite

show abstract

“…). The reason that low kVp CT scans are of low image quality is the higher absorption of low‐energy photons . ASIR can overcome some of these disadvantages and affect SNR and SD.…”

Section: Discussionmentioning

confidence: 99%

Adrenal and nephrogenic hypertension: an image quality study of low tube voltage, low-concentration contrast media combined with adaptive statistical iterative reconstruction

Shen

et al. 2016

Int J Clin Pract

View full text Add to dashboard Cite

show abstract

“…Automatic exposure control Automatic exposure control (AEC) is growing in popularity as an important function in CT scanners, the same exploit as it functions in radiograph machines and has been promising for radiation dose reduction [47]. The main principle of the AEC system is to optimize CT examinations through adapting the tube current to the patient's size, shape, and attenuation [48].…”

Section: Ct Scanning Parameters Affecting the Radiation Dosementioning

confidence: 99%

A review on chest CT scanning parameters implemented in COVID-19 patients: bringing low-dose CT protocols into play

Azadbakht

Khoramian

Lajevardi

et al. 2021

Egypt J Radiol Nucl Med

View full text Add to dashboard Cite

Background This study aims to review chest computed tomography (CT) scanning parameters which are utilized to evaluate patients for COVID-19-induced pneumonia. Also, some of radiation dose reduction techniques in CT would be mentioned, because using these techniques or low-dose protocol can decrease the radiation burden on the population. Main body Chest CT scan can play a key diagnostic role in COVID-19 patients. Additionally, it can be useful to monitor imaging changes during treatment. However, CT scan overuse during the COVID-19 pandemic raises concerns about radiation-induced adverse effects, both in patients and healthcare workers. Conclusion By evaluating the CT scanning parameters used in several studies, one can find the necessity for optimizing these parameters. It has been found that chest CT scan taken using low-dose CT protocol is a reliable diagnostic tool to detect COVID-19 pneumonia in daily practice. Moreover, the low-dose chest CT protocol results in a remarkable reduction (up to 89%) in the radiation dose compared to the standard-dose protocol, not lowering diagnostic accuracy of COVID-19-induced pneumonia in CT images. Therefore, its employment in the era of the COVID-19 pandemic is highly recommended.

show abstract

Section: Introductionmentioning

confidence: 99%

“…There continue to be numerous human observer studies to identify the optimal CT parameters for pulmonary nodule detection recently, especially with reference to pulmonary nodule detection for LCS. [9][10][11][12][13] The main parameters considered include: kVp, dose, pitch, and reconstruction method. For LCS, a typical approach is to fix all these parameters to a consistent, "optimal' scan quality for a screening program.…”

Section: Introductionmentioning

confidence: 99%

Automated image quality assessment for chest CT scans

2018

View full text Add to dashboard Cite

show abstract

3D automatic exposure control for 64-detector row CT: Radiation dose reduction in chest phantom study

Cited by 17 publications

References 37 publications

Adrenal and nephrogenic hypertension: an image quality study of low tube voltage, low-concentration contrast media combined with adaptive statistical iterative reconstruction

Adrenal and nephrogenic hypertension: an image quality study of low tube voltage, low-concentration contrast media combined with adaptive statistical iterative reconstruction

A review on chest CT scanning parameters implemented in COVID-19 patients: bringing low-dose CT protocols into play

Automated image quality assessment for chest CT scans

Contact Info

Product

Resources

About