实时阈值手动触发技术在多排螺旋CT下肢动脉成像中的临床应用价值研究
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摘要
目的研究实时阈值手动触发技术在多排螺旋CT下肢动脉成像中的临床效果及应用价值,为临床提供依据。方法选取2015年1月-2016年5月医院诊治的疑似下肢动脉病变患者70例,根据检测方法不同将患者分为对照组35例和观察组35例。对照组采用手动触发,待时间密度曲线图到峰值稳定后手动启动扫描,观察组采用实时阈值手动触发技术待阈值达到150Hu后延迟6s启动扫描,比较两组图像质量。结果观察组患者诊断时平均延迟时间,显著短于对照组(P<0.05);两组患者主-髂部血管、骨-腘部血管动脉边缘及动脉分支图像质量评分差异无统计学意义(P>0.05);观察组膝下部血管、足部血管动脉边缘及动脉分支图像质量评分,显著高于对照组(P<0.05);两组患者髂总动脉、股腘动脉、胫前动脉及足背动脉静脉干扰评分差异无统计学意义(P>0.05)。结论疑似下肢动脉病变患者采用实时阈值手动触发技术诊断效果理想,能延迟扫描时间,提高下肢动脉图像,值得推广应用。
Objective To study the real-time triggering threshold value manually clinical effect and value of multi-slice spiral CT in lower extremity arteries imaging for clinical basis. Methods January 2015-May 2016 suspected of 70 cases of lower extremity arterial disease patients to hospital for treatment, the patients were divided into different control group of 35 cases and 35 cases of observation group according to the detection method. The control group was triggered manually, until the time density curve to a peak steady manually initiate a scan, real-time observation group threshold value manually triggering threshold to be reached 150 Hu delay 6s start scanning, image quality between the two groups. Results The observed cohort, average delay time was significantly shorter than the control group(P<0.05), two groups were the main-iliac vessels, bone-popliteal artery and arteries edge image quality score difference was not statistically significant(P>0.05), the observation group blood vessels below the knee, foot and edge arteries artery image quality score was significantly higher(P<0.05), two groups were common iliac artery, femoral popliteal artery, anterior tibial artery and foot dorsal artery vein interference score was no significant difference(P>0.05). Conclusion Patients with suspected lower extremity arterial disease by real-time triggering threshold value manually over the diagnosis can be delayed scan time and improve the image of lower extremity arteries, should be widely applied.
Objective To study the real-time triggering threshold value manually clinical effect and value of multi-slice spiral CT in lower extremity arteries imaging for clinical basis. Methods January 2015-May 2016 suspected of 70 cases of lower extremity arterial disease patients to hospital for treatment, the patients were divided into different control group of 35 cases and 35 cases of observation group according to the detection method. The control group was triggered manually, until the time density curve to a peak steady manually initiate a scan, real-time observation group threshold value manually triggering threshold to be reached 150 Hu delay 6s start scanning, image quality between the two groups. Results The observed cohort, average delay time was significantly shorter than the control group(P<0.05), two groups were the main-iliac vessels, bone-popliteal artery and arteries edge image quality score difference was not statistically significant(P>0.05), the observation group blood vessels below the knee, foot and edge arteries artery image quality score was significantly higher(P<0.05), two groups were common iliac artery, femoral popliteal artery, anterior tibial artery and foot dorsal artery vein interference score was no significant difference(P>0.05). Conclusion Patients with suspected lower extremity arterial disease by real-time triggering threshold value manually over the diagnosis can be delayed scan time and improve the image of lower extremity arteries, should be widely applied.
引文
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[11]林晓汕,蔡维洵,李伟周,等.应用Matrixx验证活动挡铅形成的电子束照射野[J].中国医学物理学杂志,2014,31(2):4751-4755.
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[13]Lag RM,Bierig M,Devereux RB,et al.Recommendations for chamber quantification:a report from the American Society of Echocardiography's Guidelines and Standards Committee and the Chamber Quantification Writing Group,developed in conjunction with the European Association of Echocardiography,a branch of the European Society of Cardiology[J].J Am Soc Echocardiogr,2015,18(12):1440-1463.
[14]Chen R,Zhao BW,Wang B,et al.Assessment of left ventricular hemodynamics and function of patients with uremia by vortex formation using vector flow mapping[J].Echocardiography,2012,29(9):1081-1090.
[15]Dang B,Kubota T,Mandal K,et al.Native chemical ligation at Asx-Cys,Glx-Cys:chemical synthesis and high-resolution X-ray structure of ShK toxin by racemic protein crystallography[J].J Am Chem Soc,2013,135(32):11911-11919.
[2]朱莉,徐彧.64层螺旋计算机断层扫描血管造影与数字减影血管造影在下肢动脉病变诊断中的应用价值对比[J].实用临床医药杂志,2013,17(5):72-74.
[3]舒政,邓小飞,葛琛瑾,等.下肢动脉闭塞性疾病64层CTA血管成像中腘动脉小剂量对比剂试验的意义[J].中华放射学杂志,2011,45(7):674-677.
[4]侯凯,吕鹏,顾君英,等.实时阈值手动触发技术在下肢动脉CT血管成像中的临床应用价值[J].中国临床医学,2016,23(1):81-85.
[5]张政,韩剑虹,李迎春,等.256层螺旋CT三维血管成像与三维DSA诊断项内动脉瘤的对比分析[J].中国脑血管病杂志,2012,9(1)::21-26.
[6]沈鸟松,胡翼江.烦内动脉瘤影像学特征与动脉瘤破裂的相关性研究[J].中国实用神经疾病杂志,2012,15(10):15-17.
[7]张莉,曾文兵,汪明全,等.MSCT肺动脉造影在肺动脉栓塞的诊断应用研究(附22例分析)[J].重庆医学,2012,41(24):2501-2503.
[8]周璐,范占明,张兆琪,等.CT肺动脉造影与MR诊断肺动脉栓塞临床价值的M e t a分析[J].疑难病杂志,2014,13(4):408-410.
[9]尹广明,吕俊锋,张艳琴.多层螺旋CT血管造影在脑血管疾病中的研究进展[J].中国脑血管病杂志,2012,9(6):331-334.
[10]毛崇梅,衣玲,李胜.颇内动脉瘤不同影像技术诊疗效果的比较[J].临床医学工程,2012,19(9):1433-1436.
[11]林晓汕,蔡维洵,李伟周,等.应用Matrixx验证活动挡铅形成的电子束照射野[J].中国医学物理学杂志,2014,31(2):4751-4755.
[12]Tanaka S,Tanaka S,Iimuro S.Predicting macro-and microvascular complications in type2 diabetes:The Japan Diabetes Complications Study/the Japanese Elderly Diabetes Intervention Trial risk engine[J].Diabetes Care,2013,36(5):1193-1199.
[13]Lag RM,Bierig M,Devereux RB,et al.Recommendations for chamber quantification:a report from the American Society of Echocardiography's Guidelines and Standards Committee and the Chamber Quantification Writing Group,developed in conjunction with the European Association of Echocardiography,a branch of the European Society of Cardiology[J].J Am Soc Echocardiogr,2015,18(12):1440-1463.
[14]Chen R,Zhao BW,Wang B,et al.Assessment of left ventricular hemodynamics and function of patients with uremia by vortex formation using vector flow mapping[J].Echocardiography,2012,29(9):1081-1090.
[15]Dang B,Kubota T,Mandal K,et al.Native chemical ligation at Asx-Cys,Glx-Cys:chemical synthesis and high-resolution X-ray structure of ShK toxin by racemic protein crystallography[J].J Am Chem Soc,2013,135(32):11911-11919.