Reducing Radiation Dose in CT Enterography

被引:41
作者
Del Gaizo, Andrew J. [1 ]
Fletcher, Joel G. [2 ]
Yu, Lifeng [2 ]
Paden, Robert G. [1 ]
Spencer, Garrett Clay [1 ]
Leng, Shuai [2 ]
Silva, Annelise M. [1 ]
Fidler, Jeff L. [2 ]
Silva, Alvin C. [1 ]
Hara, Amy K. [1 ]
机构
[1] Mayo Clin Scottsdale, Dept Radiol, Scottsdale, AZ 85259 USA
[2] Mayo Clin, Dept Radiol, Rochester, MN USA
关键词
LOW-TUBE VOLTAGE; FILTERED BACK-PROJECTION; BOWEL FOLLOW-THROUGH; MULTIDETECTOR ROW CT; CROHNS-DISEASE; IMAGE QUALITY; COMPUTED-TOMOGRAPHY; CAPSULE ENDOSCOPY; ABDOMINAL CT; ITERATIVE RECONSTRUCTION;
D O I
10.1148/rg.334125074
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 ; 100207 ; 1009 ;
摘要
Computed tomographic (CT) enterography is a diagnostic examination that is increasingly being used to evaluate disorders of the small bowel. An undesirable consequence of CT, however, is patient exposure to ionizing radiation. This is of particular concern with CT enterography because patients tend to be young and require numerous follow-up examinations. There are multiple strategies to reduce radiation dose at CT enterography, including adjusting acquisition parameters, reducing scan length, and reducing tube voltage or tube current. The drawback to dose reduction strategies is degradation of image quality due to increased image noise. However, image noise can be reduced with commercial iterative reconstruction and denoising techniques. With a combination of low-dose techniques and noise-control strategies, one can markedly reduce radiation dose at CT enterography while maintaining diagnostic accuracy.
引用
收藏
页码:1109 / 1124
页数:16
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