基于CT容积扫描的时间域最大强度投影评估干细胞移植治疗前后严重下肢缺血患者的小腿血供
R445.3%R654.4; 目的 分析时间域最大强度投影(time maximum intensity projection,t-MIP)用于定量评估干细胞移植治疗前后严重下肢缺血患者的小腿血流状态的可行性和可重复性.方法 前瞻性纳入了16例拟行单腿干细胞移植治疗的严重下肢缺血患者,行术前单时相计算机断层血管造影(single phase computed tomographic angiography,sCTA)、术前术后两次320排容积CT灌注(CT perfusion,CTP)扫描、踝肱指数(ankle-branchial index,ABI)测量及Wong-Baker FACES疼痛...
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          | Published in | 复旦学报(医学版) Vol. 47; no. 5; pp. 641 - 646 | 
|---|---|
| Main Authors | , , , , , , | 
| Format | Journal Article | 
| Language | Chinese | 
| Published | 
            复旦大学附属中山医院放射科 上海 200032%复旦大学附属中山医院血管外科 上海 200032%佳能医疗系统(中国)有限公司 北京 100015%复旦大学附属中山医院放射科 上海 200032
    
        25.09.2020
     上海市影像医学研究所 上海 200032  | 
| Subjects | |
| Online Access | Get full text | 
| ISSN | 1672-8467 | 
| DOI | 10.3969/j.issn.1672-8467.2020.05.001 | 
Cover
| Abstract | R445.3%R654.4; 目的 分析时间域最大强度投影(time maximum intensity projection,t-MIP)用于定量评估干细胞移植治疗前后严重下肢缺血患者的小腿血流状态的可行性和可重复性.方法 前瞻性纳入了16例拟行单腿干细胞移植治疗的严重下肢缺血患者,行术前单时相计算机断层血管造影(single phase computed tomographic angiography,sCTA)、术前术后两次320排容积CT灌注(CT perfusion,CTP)扫描、踝肱指数(ankle-branchial index,ABI)测量及Wong-Baker FACES疼痛评分.t-MIP图像与sCTA图像上显示的血管质量差异用Mann-Whitney秩和检验分析.两名观察者分别独立测定术前、术后小腿的血管容积,应用组间一致性(intra-class correlation,ICC)分析两者的测定一致性,配对t检验用于检验干细胞移植治疗前后患者小腿的血流状态变化,Pearson相关性分析研究小腿CT血管容积和ABI的相关性.结果 共评价16条小腿.t-MIP图像显示小腿血管的质量明显优于sCTA图像,包括血管CT值、信噪比(signal-to-noise ratio,SNR)、对比噪声比(contrast-to-noise ratio,CNR)(P<0.001)及主观评分(P<0.05);sCTA图像和t-MIP图像分别显示小腿侧支血管23支及45支,两者之间的差异具有统计学意义(P<0.05).术后血管容积较术前增加(P<0.05),观察者间对术前、术后血管容积评估的一致性好,ICC值分别为0.897和0.906.术后ABI较术前增加(P<0.05),但术前、术后Wong-Baker FACES评分之间差异无统计学意义(P>0.05).小腿CT血管容积与ABI之间未发现明显相关性(P>0.05).结论 t-MIP可以提升容积CT图像对血管的显示质量,通过计算小腿血管容积可以定量评估干细胞移植治疗前后严重下肢缺血患者的小腿血流状态. | 
    
|---|---|
| AbstractList | R445.3%R654.4; 目的 分析时间域最大强度投影(time maximum intensity projection,t-MIP)用于定量评估干细胞移植治疗前后严重下肢缺血患者的小腿血流状态的可行性和可重复性.方法 前瞻性纳入了16例拟行单腿干细胞移植治疗的严重下肢缺血患者,行术前单时相计算机断层血管造影(single phase computed tomographic angiography,sCTA)、术前术后两次320排容积CT灌注(CT perfusion,CTP)扫描、踝肱指数(ankle-branchial index,ABI)测量及Wong-Baker FACES疼痛评分.t-MIP图像与sCTA图像上显示的血管质量差异用Mann-Whitney秩和检验分析.两名观察者分别独立测定术前、术后小腿的血管容积,应用组间一致性(intra-class correlation,ICC)分析两者的测定一致性,配对t检验用于检验干细胞移植治疗前后患者小腿的血流状态变化,Pearson相关性分析研究小腿CT血管容积和ABI的相关性.结果 共评价16条小腿.t-MIP图像显示小腿血管的质量明显优于sCTA图像,包括血管CT值、信噪比(signal-to-noise ratio,SNR)、对比噪声比(contrast-to-noise ratio,CNR)(P<0.001)及主观评分(P<0.05);sCTA图像和t-MIP图像分别显示小腿侧支血管23支及45支,两者之间的差异具有统计学意义(P<0.05).术后血管容积较术前增加(P<0.05),观察者间对术前、术后血管容积评估的一致性好,ICC值分别为0.897和0.906.术后ABI较术前增加(P<0.05),但术前、术后Wong-Baker FACES评分之间差异无统计学意义(P>0.05).小腿CT血管容积与ABI之间未发现明显相关性(P>0.05).结论 t-MIP可以提升容积CT图像对血管的显示质量,通过计算小腿血管容积可以定量评估干细胞移植治疗前后严重下肢缺血患者的小腿血流状态. | 
    
| Author | 方圆 林江 朱亚新 何思琦 孙佳琦 刘骏桢 董智慧  | 
    
| AuthorAffiliation | 上海市影像医学研究所 上海 200032;复旦大学附属中山医院放射科 上海 200032%复旦大学附属中山医院血管外科 上海 200032%佳能医疗系统(中国)有限公司 北京 100015%复旦大学附属中山医院放射科 上海 200032 | 
    
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| Author_FL | SUN Jia-qi HE Si-qi DONG Zhi-hui LIU Jun-zhen LIN Jiang ZHU Ya-xin FANG Yuan  | 
    
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| Keywords | 下肢缺血 最大强度投影 断层摄影术,X线计算机 干细胞治疗  | 
    
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| Title | 基于CT容积扫描的时间域最大强度投影评估干细胞移植治疗前后严重下肢缺血患者的小腿血供 | 
    
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