| 孙灿辉,李子平,孟悛非,冯仕庭,郭欢仪,严朝贵,何洁珺.结直肠癌64层螺旋CT灌注成像参数测定的可重复性研究[J].中国医学影像技术,2007,23(7):1053~1055 |
| 结直肠癌64层螺旋CT灌注成像参数测定的可重复性研究 |
| Reproducibility of colorectal carcinoma perfusion measurements using 64-slice spiral CT |
| 投稿时间：2007-01-12 修订日期：2007-05-08 |
| DOI： |
| 中文关键词: 结直肠肿瘤 灌注 体层摄影术,X线计算机 可重复性 |
| 英文关键词:Colorectal neoplasm Perfusion Tomography, X-ray computed Reproducibility |
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| 中文摘要: |
| 目的 对结直肠癌64层螺旋CT灌注成像参数测定的可重复性进行评价。方法 对33例结直肠癌患者进行64层螺旋CT灌注成像研究。重复测量灌注参数血流量(BF)、血容量(BV)、平均通过时间(MTT)、表面通透性(PS),比较各参数在同一观察者内及不同观察者间测定的可重复性。结果 同一观察者不同时间测定的各参数均值相近,无统计学差异(P>0.05);不同观察者所测定的各参数均值也无显著性差别(P>0.05)。结论 结直肠癌64层螺旋CT灌注成像具有快速、无创、可重复性较好等特点,可用于评价结直肠癌的血流灌注状况。 |
| 英文摘要: |
| vObjective To assess the reproducibility of colorectal carcinoma perfusion measurements using 64-slice spiral CT (64MSCT). Methods Thirty-three patients with histologically proven primary colorectal adenocarcinoma underwent preoperative 64MSCT perfusion imaging. The blood flow (BF), blood volume (BV), mean transit time (MTT), and permeability-surface area product (PS) were measured respectively by two observers and one observer in two different times for evaluating the inter-observer reproducibility and the intra-observer reproducibility. Results There was no significant difference between the results of the two different observers or between the results of the two different times (P>0.05). Conclusion 64MSCT perfusion imaging is noninvasive, fast, and high reproducible, which may provide a technique to assess vascular perfusion of colorectal carcinoma. |
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