低剂量扫描技术在冠状动脉CT血管造影中的应用
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摘要
目的对比双源CT冠状动脉血管造影检查在不同管电压下冠状动脉的图像质量以及患者所接受的辐射剂量,评价低电压扫描技术在冠状动脉CT造影中应用的可能性。方法选取医院进行冠状动脉CT血管造影检查的患者共187例,以120 k V和100 k V管电压值随机分为2组,其他扫描参数不变,统计分析冠状动脉的图像质量及患者所受的辐射剂量。结果对比2组图像质量的主客观评分,120 k V组和100 k V组差异无统计学意义(P>0. 05),在患者所受辐射剂量的对比中,120 k V组辐射剂量大于100 k V组,差异有统计学意义(P <0. 05)。结论双源CT在冠状动脉CT血管造影检查中2种不同的管电压对图像质量并无影响,并且100 k V低电压扫描技术可以降低患者所受的辐射剂量,值得推广应用。
Objective To compare the image quality and radiation dose of dual-source CT coronary angiography under different tube voltage,and to evaluate the possibility of low-voltage CT angiography in coronary angiography. Methods 187 patients who underwent coronary CT angiography were randomly divided into two groups according to 120 k V and 100 k V tube voltage values. The other scanning parameters remained unchanged. The image quality of coronary artery and radiation dose received by patients were analyzed. Results There was no significant difference in subjective and objective image quality scores between the two groups( P > 0. 05). The radiation dose of 120 k V group was higher than that of 100 k V group,and the difference was statistically significant( P < 0. 05). Conclusion In dual-source CT angiography of coronary artery,different tube voltage has no effect on image quality,and 100 k V low-voltage scanning technology can reduce the radiation dose of patients,which is worthy of popularization and application.
Objective To compare the image quality and radiation dose of dual-source CT coronary angiography under different tube voltage,and to evaluate the possibility of low-voltage CT angiography in coronary angiography. Methods 187 patients who underwent coronary CT angiography were randomly divided into two groups according to 120 k V and 100 k V tube voltage values. The other scanning parameters remained unchanged. The image quality of coronary artery and radiation dose received by patients were analyzed. Results There was no significant difference in subjective and objective image quality scores between the two groups( P > 0. 05). The radiation dose of 120 k V group was higher than that of 100 k V group,and the difference was statistically significant( P < 0. 05). Conclusion In dual-source CT angiography of coronary artery,different tube voltage has no effect on image quality,and 100 k V low-voltage scanning technology can reduce the radiation dose of patients,which is worthy of popularization and application.
引文
[1]张婷.冠心病心绞痛的中医辨证治疗概况[J].湖南中医杂志,2015,31(9):166-167.
[2]李春莉,张桥,张媛媛. DSA冠状动脉造影对冠状动脉病变的诊断价值[J].医药前沿,2016,6(9):112-113.
[3]马海川,张龙,贺君平,等. 64排128层螺旋CT冠状动脉成像与冠脉造影比较分析[J].医学影像学杂志,2013,23(11):1792-1794.
[4]罗贵全,邓学军,江舟. 64排螺旋CT冠状动脉成像对冠状动脉狭窄的诊断价值[J].华西医学,2013,28(9):1394-1395.
[5]高海燕,于晓宇. 64排螺旋CT冠脉成像在冠心病诊断中的应用[J].中国保健营养,2013,23(4):2152-2153.
[6]刘文杰. 64层螺旋CT低剂量个体化前瞻性门控轴面扫描在冠状动脉血管成像的应用[J].中国药物与临床,2013,13(3):331-333.
[7]李萍,张昊.双源CT下心肌桥—壁冠状动脉的研究[J].临床合理用药杂志,2014,7(5):18-19.
[8]王皆欢,陈东风,王少春,等.双源CT不同管电压技术诊断急性胸痛三联症效果比较[J].济宁医学院学报,2014,37(5):320-322.
[9] Mc Collough C,Cody D,Edyvean S,et al. The measurement,reporting,and management of radiation dose in CT[J]. Report of AAPM Task Group,2008,23:1-28.
[10] Flohr TG,Mc Collough CH,Bruder H,et al. First performance evaluation of a dual-source CT(DSCT)system[J]. European radiology,2006,16(2):256-268.
[11]杨世平,王聪,陈垦,等.应用心电脉冲和四维管电流调制技术降低128层螺旋CT冠状动脉成像的辐射剂量的研究[J].中国医学创新,2011,8(5):15-17.
[12]吕滨,韩磊,鲁锦国,等.双源CT冠状动脉扫描心电门控模式和管电压对辐射剂量与图像质量的影响[J].实用放射学杂志,2010,26(9):1350-1355.
[13]张俊,何波,江杰,等.管电压100 kV下双源CT冠状动脉成像的可行性[J].中国医学影像学杂志,2012,20(10):734-737.
[2]李春莉,张桥,张媛媛. DSA冠状动脉造影对冠状动脉病变的诊断价值[J].医药前沿,2016,6(9):112-113.
[3]马海川,张龙,贺君平,等. 64排128层螺旋CT冠状动脉成像与冠脉造影比较分析[J].医学影像学杂志,2013,23(11):1792-1794.
[4]罗贵全,邓学军,江舟. 64排螺旋CT冠状动脉成像对冠状动脉狭窄的诊断价值[J].华西医学,2013,28(9):1394-1395.
[5]高海燕,于晓宇. 64排螺旋CT冠脉成像在冠心病诊断中的应用[J].中国保健营养,2013,23(4):2152-2153.
[6]刘文杰. 64层螺旋CT低剂量个体化前瞻性门控轴面扫描在冠状动脉血管成像的应用[J].中国药物与临床,2013,13(3):331-333.
[7]李萍,张昊.双源CT下心肌桥—壁冠状动脉的研究[J].临床合理用药杂志,2014,7(5):18-19.
[8]王皆欢,陈东风,王少春,等.双源CT不同管电压技术诊断急性胸痛三联症效果比较[J].济宁医学院学报,2014,37(5):320-322.
[9] Mc Collough C,Cody D,Edyvean S,et al. The measurement,reporting,and management of radiation dose in CT[J]. Report of AAPM Task Group,2008,23:1-28.
[10] Flohr TG,Mc Collough CH,Bruder H,et al. First performance evaluation of a dual-source CT(DSCT)system[J]. European radiology,2006,16(2):256-268.
[11]杨世平,王聪,陈垦,等.应用心电脉冲和四维管电流调制技术降低128层螺旋CT冠状动脉成像的辐射剂量的研究[J].中国医学创新,2011,8(5):15-17.
[12]吕滨,韩磊,鲁锦国,等.双源CT冠状动脉扫描心电门控模式和管电压对辐射剂量与图像质量的影响[J].实用放射学杂志,2010,26(9):1350-1355.
[13]张俊,何波,江杰,等.管电压100 kV下双源CT冠状动脉成像的可行性[J].中国医学影像学杂志,2012,20(10):734-737.