The physical principles of spectral CT and its application in radiotherapy
10.3760/cma.j.cn113030-20240201-00040
- VernacularTitle:能谱CT的物理原理及其在放射治疗中的应用
- Author:
Xuetao WANG
1
;
Sen BAI
Author Information
1. 北京大学深圳医院放射治疗科，深圳 518036
- Publication Type:Journal Article
- Keywords:
Radiotherapy;
Spectral computed tomography;
Dual-energy computed tomography
- From:
Chinese Journal of Radiation Oncology
2025;34(7):724-729
- CountryChina
- Language:Chinese
-
Abstract:
Spectral computed tomography (CT) leverages the varying linear attenuation coefficients of different substances across different energy levels of X-ray radiation. This capability allows for more precise identification of pathological tissues and their constituent structures. This technology has been widely applied in the diagnosis and differential diagnosis of various diseases. However, the application of spectral CT in radiotherapy is not as advanced as its established role in diagnostic radiology. In this comprehensive review, the fundamental physical principles underlying spectral CT were outlined, the techniques and methodologies for its implementation were illustrated, and its unique applications in the field of radiotherapy, along with its potential future development were discussed.
