Progress in the application of energy spectral CT in the diagnosis ofpulmonary embolism
YU Yaxi
YANG Yue
CHEN Rong
SONG Jianxia
WANG Min
YANG Fei
Abstract：Pulmonary thromboembolism is an umbrella term for a group of diseases or clinical syndromes caused by thrombus blockage of the pulmonary artery and its branches,which can lead to circulatory instability or sudden death without timely treatment,with a mortality rate as high as 30%.Energy-spectrum CT can make qualitative and quantitative judgment on tissues through its attenuation characteristics under different X-ray energies,and through post-processing technology,it can generate images such as base matter map,single-energy image,effective atomic number,and energy-spectrum curve at one time,which overcomes the limitations of traditional CT in characterizing tissues and allows for a more comprehensive analysis of the disease.In recent years,energy spectrum CT has been widely used in the diagnosis and risk stratification assessment of pulmonary embolism disease.Its multiparameter quantitative analysis has shown significant advantages in improving the accuracy of PE diagnosis and optimizing image quality.The purpose of this paper is to review the imaging principle of energy spectrum CT and its application value in pulmonary embolism disease.
Keywords：energetic CTacute pulmonary embolismchronic pulmonary embolismhazard stratificationimaging parameters
Publication Date：2025-07-20
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 922-926 )