Revolution CT全肾灌注成像动脉期数据对肾透明细胞癌灌注参数值的影响

发布时间：2018-07-11 11:09

本文选题：癌 + 肾细胞　；参考：《中国医学影像技术》2017年05期

【摘要】：目的探讨Revolution CT全肾灌注成像去除动脉期数据对肾透明细胞癌灌注参数值的影响。方法回顾性分析接受Revolution CT肾脏增强及灌注扫描、并经手术病理证实为肾透明细胞癌的患者10例。采用Revolution CT机轴扫模式进行灌注扫描,采用CT Perfusion 4D肾脏灌注软件包进灌注成像分析,对所有图像均进行2次后处理,第1次选择所有的灌注数据为A组;第2次去除第9~15期数据,共测量16期,为B组。选择右侧肾门水平腹主动脉为输入动脉,获得血流量(BF)图、血容量(BV)图、平均通过时间(MTT)图及表面通透性(PS)图。分别对比2组肿瘤与正常肾皮质间各灌注参数的差异,并比较A组和B组间肿瘤、正常肾皮质间各灌注参数值的差异。结果 A组和B组中肿瘤较正常肾皮质的BF值及PS值均减低(P均0.05),BV及MTT值差异均无统计学意义(P均0.05)。2组病变侧各灌注参数值差异均无统计学意义(P均0.05),2组正常肾皮质的BF值差异有统计学意义(P=0.009),余灌注参数值差异亦无统计学意义(P均0.05)。结论灌注扫描时间为600s时,去除动脉期数据后测量的肾透明细胞癌各灌注参数值与包含动脉期数据测量的结果无差异,去除动脉期的数据可用于诊断肾透明细胞癌。
[Abstract]:Objective to investigate the effect of the removal of arterial phase data on the perfusion parameters of renal clear cell carcinoma (RCC) by revolution CT whole renal perfusion imaging. Methods Ten cases of renal clear cell carcinoma confirmed by surgery and pathology were analyzed retrospectively. The perfusion scan was performed using the axial scan mode of the Revolution CT, and the perfusion imaging analysis of renal perfusion software package was performed with CT Perfusion 4D. All the images were processed twice, and all the perfusion data were selected as group A for the first time, and the data of stage 915 was removed for the second time. A total of 16 phases were measured for group B. Blood flow (BF), blood volume (BV), mean transit time (MTT) and surface permeability (PS) were obtained. The perfusion parameters of tumor and normal renal cortex were compared between group A and group B, and the difference of perfusion parameters between normal renal cortex and tumor between group A and group B. Results the BF and PS values of tumor in group A and group B were lower than those in normal renal cortex (P 0.05). There was no significant difference in BV and MTT values between group A and group B (P 0.05). 2. There was no significant difference in perfusion parameters of pathological side between group A and group B (P 0.05). The BF value of cortex was significantly different (P0. 009), and there was no significant difference in residual perfusion parameters (P0. 05). Conclusion when the perfusion scan time is 600 s, the perfusion parameters of renal clear cell carcinoma after removing arterial phase data are not different from those of renal clear cell carcinoma including arterial phase data. The data removed from arterial phase can be used to diagnose renal clear cell carcinoma.
【作者单位】：大连医科大学附属第一医院放射科;
【分类号】：R730.44;R737.11

【相似文献】