The research progress in dual energy lung perfusion imaging for the assessment of COPD by dual source CT
YANG Lei
LI Yiming
LI Cheng
Abstract：Chronic obstructive pulmonary disease (COPD) is a lung disease which is induced by various causes of pulmonary parenchyma and small airway injury, leading to chronic irreversible airway obstruction, increased respiratory resistance and pulmonary dysfunction as common features. At present, the pulmonary function tests, SPECT pulmonary perfusion and MR perfusion imaging cannot show the lung with COPD in high resolution. But perfusion imaging of dual energy CT can display the anatomical information and pulmonary function of pulmonary lung perfusion information and can accurately register the location and perfusion defect region of emphysema. Virtual plain scanning images can identify the type of COPD, the number and size of emphysema. This is of great significance for the early diagnosis, treatment and prognosis evaluation of COPD. In this article we summarized the principle of dual energy CT lung perfusion imaging and its progress in the research of COPD.
Keywords：Chronic obstructive pulmonary diseaseDual energyTomographyX-ray computedPerfusion imaging
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 41-45 )