管(容器)
辐射剂量
辐射
计算机科学
核医学
材料科学
物理
光学
医学
复合材料
作者
Doaa BaniOdeh,Mohammad Hjouj
出处
期刊:Journal of physics
[IOP Publishing]
日期:2024-02-01
卷期号:2701 (1): 012027-012027
标识
DOI:10.1088/1742-6596/2701/1/012027
摘要
Abstract The process of reconstructing CT scan images from limited angle projections is critical and requires strict adherence to the ALARA principle. This principle is designed to minimize radiation exposure while maintaining image quality. Our study utilized filter back-projection (FBP) and algebraic iterative reconstruction (IR) algorithms to reconstruct brain CT images from 200 projection lines and a 100 × 100 matrix size. By combining the results of a MATLAB function with the insights of a radiologist, we can produce high-quality images that decrease radiation dose and tube load. Our findings reveal that the algebraic method is superior to the filter back-projection in preserving image quality when utilizing limited-angle projections.
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