CAJ | 학술논문

探讨支架增强显影技术(stentboost,SB)在评价支架植入效果和指导支架内球囊后扩张与血管内超声(intravascular ultrasound,IVUS)的相关性。方法26例患者在支架植入、支架内球囊后扩张时,完成了冠状动脉造影定量分析(quantative coronary angiography,QCA)、SB技术、IVUS检查,植入支架35枚。分别通过 QCA、SB、IVUS获取支架植入、支架内球囊后扩张完成时支架直径,计算支架偏心指数；各项检查所测支架植入、支架内球囊后扩张完成时支架直径和支架偏心指数的自身对照,检查之间所测数据进行相关性分析。结果 QCA、SB、IVUS测量的支架内球囊后扩张完成时支架直径均较支架植入时明显增加,支架偏心指数[(最大支架直径-最小支架直径)/最大血管直径]降低。SB与IVUS测量的支架植入时、支架内球囊后扩张完成时的支架平均直径具有最好的相关性(r=0.982,P<0.01；r=0.985,P<0.01)；而且 QCA与IVUS也具有较好的相关性(r=0.975,P<0.01；r=0.978, P<0.01)；QCA与 SB也明显相关(r=0.972,P<0.01；r=0.976,P <0.01)。结论支架内球囊后扩张完成时支架偏心指数较支架植入时更低,与 QCA相比,SB与 IVUS测量的支架植入时、支架内球囊后扩张完成时的支架平均直径有更好的相关性。
탐토지가증강현영기술(stentboost,SB)재평개지가식입효과화지도지가내구낭후확장여혈관내초성(intravascular ultrasound,IVUS)적상관성。방법26례환자재지가식입、지가내구낭후확장시,완성료관상동맥조영정량분석(quantative coronary angiography,QCA)、SB기술、IVUS검사,식입지가35매。분별통과 QCA、SB、IVUS획취지가식입、지가내구낭후확장완성시지가직경,계산지가편심지수；각항검사소측지가식입、지가내구낭후확장완성시지가직경화지가편심지수적자신대조,검사지간소측수거진행상관성분석。결과 QCA、SB、IVUS측량적지가내구낭후확장완성시지가직경균교지가식입시명현증가,지가편심지수[(최대지가직경-최소지가직경)/최대혈관직경]강저。SB여IVUS측량적지가식입시、지가내구낭후확장완성시적지가평균직경구유최호적상관성(r=0.982,P<0.01；r=0.985,P<0.01)；이차 QCA여IVUS야구유교호적상관성(r=0.975,P<0.01；r=0.978, P<0.01)；QCA여 SB야명현상관(r=0.972,P<0.01；r=0.976,P <0.01)。결론지가내구낭후확장완성시지가편심지수교지가식입시경저,여 QCA상비,SB여 IVUS측량적지가식입시、지가내구낭후확장완성시적지가평균직경유경호적상관성。
To discuss the correlation between StentBoost(SB)and intravascular ultrasound(IVUS) for assessing stent implantation and guiding the stent post dilatation.Methods Twenty-six patients were analyzed using quantitative coronary angiography(QCA),IVUS,and SB,35 stents were implanted.Twenty-six patients (35 stents)were performed with postdilatation.Stent diameter poststenting and postdilation were measured by QCA,by IVUS by SB respectively;the ratio (maximum stent diameter [MaxLD]-minimum stent diameter [MaxLD]/MaxLD were calculated respectively.Stent diameter were analyzed in poststenting and postdilation check;correlations of three chicks were analyzed.Results The minimum diameter,maximum diameter and average diameter of postdilatation obtained by QCA,IVUS,SB were significantly larger than those of poststenting,and the ratio (maximum stent diameter [MaxLD]-minimum stent diameter [MaxLD]/MaxLD of postdilatation was smaller.Correlations of average diameter were the best between IVUS and SB (r=0.982,P<0.01;r=0.985,P<0.01),and those were also better between QCA and SB (r =0.975,P <0.01;r =0.978,P <0.01),futher more those by QCA and IVUS were significant(r=0.972,P <0.01;r=0.976,P <0.01)in stent implantation and post-dilatation.Conclusion The stent eccentricity index becomes small after postdilatation in every group;SB has superior correlations for stent directers measured by IVUS when compared with QCA of stent implantation and postdilatation.