Image Evaluation and Exposure Dose with the Application of Tube Voltage and Adaptive Statistical Iterative Reconstruction of Low Dose Computed Tomography

2017 ◽  
Vol 40 (2) ◽  
pp. 261-267
Author(s):  
Tae-Joon Moon ◽  
◽  
Ki-Jeong Kim ◽  
Hye-Nam Lee
Keyword(s):  
Computed Tomography ◽  
Iterative Reconstruction ◽  
Low Dose ◽  
Exposure Dose ◽  
Image Evaluation ◽  
Adaptive Statistical Iterative Reconstruction ◽  
Tube Voltage ◽  
Statistical Iterative Reconstruction ◽  
Low Dose Computed Tomography

THE USE OF LOW-DOSE CT WITH ADAPTIVE STATISTICAL ITERATIVE RECONSTRUCTION FOR THE DIAGNOSIS OF URINARY CALCULI

2020 ◽  
Vol 190 (2) ◽  
pp. 200-207
Author(s):  
Yingdi Xie ◽  
Jingshan Tao ◽  
Hailing Liu ◽  
Xiaojin Zang ◽  
Zhengming Zhang ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Iterative Reconstruction ◽  
Low Dose ◽  
Urinary Calculi ◽  
Adaptive Statistical Iterative Reconstruction ◽  
Effective Radiation Dose ◽  
Diagnostic Efficacy ◽  
Conventional Dose ◽  
Statistical Iterative Reconstruction ◽  
Effective Radiation

Abstract This study aimed to explore the diagnosis of urinary calculi through utilisation of low-dose computed tomography (LDCT) with adaptive statistical iterative reconstruction (ASIR). Data from 140 patients that had undergone pathological or operative diagnosis with urinary calculi were analysed. Patients were divided into two groups based on whether they received conventional-dose computed tomography (CDCT) or LDCT, respectively, followed by filtered back projection or ASIR. Average CDCT radiation doses were roughly 4-fold higher than LDCT doses. Despite this difference, there were no significant differences between groups with respect to stone size or location, image quality (P = 0.261), image noise (P = 0.153) and diagnostic efficacy (P = 0.371). LDCT is an effective approach to urinary calculi diagnosis, performing to ASIR while decreasing the effective radiation dose, improving the safety of this procedure.

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