2-dimensional ultrasonography
二维超声测定全肠外营养患者胆囊排空功能的临床研究 关键词：全肠外营养；胆囊排空；二维超声 [gap=1297]Key words：total parenteral nutrition；gallbladder empthing；2-Dimensional ultrasonography
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Objective To evaluate the diagnosis evidence of malignant tumors in the parotid gland by using two -dimensional ultrasonography (2-d) and color Doppler flow imaging (CDFI).
目的：采用二维超声图像并结合彩色多谱勒血流显像探讨腮腺恶性肿瘤的超声诊断依据。
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