Definition flash dual source ct

Patients with CRC who were hospitalized in Harbin Medical University Cancer Hospital from 2016 to 2021 were enrolled in the study group. Patients with lower limb pain, swelling or skin color change in the treatment process needed to immediately perform lower limb vascular Doppler ultrasound examination, using Philips EPIQ 7C, Mindray DC 8, Canon Aplio i900 and other ultrasound instruments, intravascular thrombosis was diagnosed as DVT (Figure 1). Patients presented with unexplained chest tightness, chest pain, hemoptysis, dyspnea, or fainting were performed computer tomography pulmonary angiography examination immediately using Siemens Definition Flash dual-source CT, filling defect of pulmonary artery and its branches was diagnosed as PE (Figure 2). Referring to the results of vascular ultrasound or computer tomography pulmonary angiography examination, the patients were divided into the VTE group and the non-VTE group. This retrospective study was in line with the Declaration of Helsinki and approved by the Ethics Committee of Harbin Medical University Cancer Hospital, the Institutional Review Board number of the approval for this study is KY2021-18.