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| 下肢双能CTA去骨去钙化功能临床应用价值的研究 | |
| 引用本文： | 郝永,宋云龙,弥龙,刘侠,王东,李相生,孟利民,方红,祝红线. 下肢双能CTA去骨去钙化功能临床应用价值的研究[J]. 临床放射学杂志, 2011, 30(5) |
| 作者姓名： | 郝永 宋云龙 弥龙 刘侠 王东 李相生 孟利民 方红 祝红线 |
| 作者单位： | 1. 第三军医大学,重庆,400038 2. 空军总医院CT/磁共振科,北京,100142 3. 辽宁医学院研究生院,121001 |
| 摘 要： | 目的研究双能CT下肢动脉成像去骨去钙化功能的临床应用价值。资料与方法 43例患者进行双能CT下肢动脉检查,得到双能去骨后的图像(包括去除钙化斑块后的图像)及传统自动去骨后的图像,残留骨手动去除,记录各自去骨时间及对各节段血管的侵蚀度。判定斑块去除前后对血管狭窄度测量的影响。结果残留骨仅在未去除钙化斑块图像上观察到,双能去骨时间(1.86±0.28)min低于传统自动去骨时间(2.00±0.24)min(P<0.01,t=-4.382);共对822节段血管进行分析,血管侵蚀率前者低于后者,且最常发生于小腿部血管(χ2=13.13,P<0.01)。结论双能CTA明显优于传统多层螺旋CTA,双能自动去骨软件提高了工作效率,有助于小腿部血管的显示,自动去斑块功能可提高诊断准确性。 |
| 关 键 词： | 下肢动脉 血管造影 双能CT |
Clinical Value of Dual-energy Bone and Calcium Removal in Lower Limb Computed Tomography Angiography |
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| HAO Yong,SONG Yunlong,MI Long,et al.. Clinical Value of Dual-energy Bone and Calcium Removal in Lower Limb Computed Tomography Angiography[J]. Journal of Clinical Radiology, 2011, 30(5) | |
| Authors: | HAO Yong SONG Yunlong MI Long et al. |
| Affiliation: | HAO Yong,SONG Yunlong,MI Long,et al.Third Military Medical University,Chongqing,400038,P.R.China |
| Abstract: | Objective To study the clinical value of dual-energy bone and calcium removal in lower extremity computed tomography angiography.Materials and Methods 43 patients with lower limb artery diseases were scanned by dual-energy CT,used to generate dual-energy automatically bone-subtracted images(included plaque-subtracted images) and standard auto bone subtraction images.Residual bone was removed manually.Operator time for bone removal and presence of vessel erosions was measured.Stenosis grading was assessed in... |
| Keywords: | Artery of lower extremity Angiography Dual energy CT |
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