Abstract:Objective To investigate the value of three-phase enhanced CT images in the diagnosis of benign and malignant tumors of the spleen. Methods The CT imaging was performed by using Philips 128-slice spiral CT machine. Before scanning, about 800 mL of
warm boiled water was taken orally three times, and the collection range was from the top of the right diaphragm to the lower pole of the right kidney. Non-ionic contrast agents were injected intravenously through the cubital. Images of the arterial phase, portal
phase, and equilibrium phase were collected at 25-30 s, 60-70 s, and 90-120 s approximately after injection. The data of four-grid table was used to calculate the sensitivity, specificity, and accuracy of the diagnosis. Results Among the 37 patients, there were 21 cases
of benign lesions and 16 cases of malignant lesions. Hemangiomas were more common in benign lesions, and metastatic tumors and lymphomas were more common in malignant lesions. The sensitivity, specificity, and accuracy of CT-enhanced images for the
diagnosis of benign and malignant spleen tumors were 81.25%, 80.95%, and 81.10% respectively, and the rate of missed diagnosis, misdiagnosis, positive predictive value, and negative predictive value were 23.08%, 19.05%, 76.47%, and 85.00 % respectively. The
Youden index was 0.62. Conclusion The low-density signs in the equilibrium phase of CT enhancement can be used as one of the main features in the differential diagnosis of benign and malignant diseases.
任军,卢铃铨,殷信道,王丽萍,王利伟. 脾脏良恶性肿瘤的CT增强特征与诊断价值[J]. 中国医疗设备, 2020, 35(12): 75-78.
REN Jun, LU Lingquan, YIN Xindao, WANG Liping, WANG Liwei. CT Enhancement Features and Diagnostic Value of Benign and Malignant Spleen Tumors. China Medical Devices, 2020, 35(12): 75-78.