Research Progress of Low Contrast Agent and Low Radiation Dose Scanning Technology and Image Reconstruction Algorithm in CT Angiography of Head and Neck
10.3969/j.issn.1005-5185.2024.12.019
- VernacularTitle:头颈部CTA低对比剂用量、低辐射剂量扫描技术及图像重建算法的研究进展
- Author:
Qinling JIANG
1
;
Yuanyuan CUI
;
Rongrong FAN
;
Hongbiao SUN
;
Weimin YUAN
;
Yi XIAO
Author Information
1. 海军军医大学长征医院放射诊断科,上海 200003
- Publication Type:Journal Article
- Keywords:
Head and neck;
CT angiography;
Radiation dosage;
Contrast media;
Reconstruction algorithm;
Review
- From:
Chinese Journal of Medical Imaging
2024;32(12):1294-1299
- CountryChina
- Language:Chinese
-
Abstract:
CT angiography is an important method for vascular examination of head and neck. This examination should focus not only on endovascular contrast to meet the needs of post-processing and diagnosis,on radiation dose from extensive scans and multiple follow-up examinations,but also on the potential risk of renal impairment. Achieving low contrast agent dosage and low radiation dose,while ensuring good image quality,is the ultimate clinical pursuit for head and neck CT angiography examination. Clinical practice shows that the image noise caused by low contrast agent and low radiation dose has become a disturbing factor for imaging quality and diagnostic accuracy,so how to properly apply and combine the low contrast agent and low radiation dose conditions has always been a key point. Starting from the clinical needs,this paper reviews and sorts out the current progress and principles of low contrast agent as well as low radiation dose technology,the significant effect of image reconstruction algorithm on image quality improvement,and the current application research of deep learning reconstruction algorithms in this direction.
