灌注成像作为一种能反映组织血液动力学状况的功能性成像方法,在全身各脏器疾病尤其是急性缺血性脑血管病诊断中的应用进展迅速。初步研究证明,利用CT灌注成像可定量地反映脑肿瘤的血管化程度和血流灌注状况,对于推断肿瘤的分级和预后,鉴别肿瘤复发与放射性坏死,观察疗效、指导治疗方案的制订及引导活检等有较大的临床应用价值。 As a functional imaging method that can reflect the hemodynamic status of tissue, perfusion imaging is rapidly progressing in the diagnosis of various internal organs diseases, especially acute ischemic cerebrovascular disease. Preliminary studies have shown that the use of CT perfusion imaging can quantitatively reflect the degree of vascularization and blood perfusion of brain tumors, tumor grade and prognosis for the deduction, the identification of tumor recurrence and radioactive necrosis, observe the curative effect, guide the development of treatment options and guide biopsy And so have a greater clinical value.