论文部分内容阅读
胰腺癌的CT诊断主要依靠胰腺形态的改变和病灶与胰腺之间密度的差异[1]。常规CT增强是胰腺癌诊断的主要方法,但是对肿瘤血供的观察仍有其局限性,不能全面准确反应肿瘤的血流动力学改变。随着多层螺旋CT的应用,一种新的CT灌注成像技术应运而生,CT灌注成像的理论基础为核医学的放
CT diagnosis of pancreatic cancer mainly depends on changes in the morphology of the pancreas and the density difference between the lesion and the pancreas [1]. Conventional CT enhancement is the main method for the diagnosis of pancreatic cancer. However, the observation of tumor blood supply still has its limitations and can not fully and accurately reflect the hemodynamic changes of tumors. With the application of multi-slice spiral CT, a new CT perfusion imaging technology came into being, the theoretical basis of CT perfusion imaging for the release of nuclear medicine