Al-Rudaini Hesham Ebrahim Ahmed, Han Ping, Liang Huimin
Department of Radiology, Tongji Medical College, Huazhong University of Science and Technology, Union Hospital, Wuhan, 430030, China.
Curr Med Imaging Rev. 2019;15(5):496-503. doi: 10.2174/1573405614666181026112532.
CT Angiography (CTA) of aortoiliac and lower extremity arteries is a relatively recent innovation of CT imaging that has changed after the introduction of multi-detector row scanners.
The study aimed to evaluate the diagnostic accuracy of Multidetector Computed Tomographic Angiography (MDCTA) in the assessment of arterial tree in patients with Peripheral Arterial Occlusive Disease (PAOD), as compared to Digital Subtraction Angiography (DSA).
A single-center nonrandomized prospective study was conducted on 50 patients complaining of peripheral arterial disease (chronic stage) from February 2017 to October 2017. All the patients were exposed to DSA and CTA prior to definitive treatment. The images were then analyzed using maximum intensity projection, volume-rendered, and curved multiplane reformation techniques.
All the patients involved in this study were susceptible according to their clinical presentation. The statistical analysis exposed a highly significant difference between CTA and DSA in the assessment of stenosis at the level of Femoropopliteal segment (P<0.01), while for infrapopliteal segment, there was no statistically significant difference between CTA and DSA having 8% versus 14% insignificant stenosis and 62% versus 47% significant stenosis in CTA and DSA, respectively. The overall accuracy of CT angiography in the femoropopliteal segments was 95.20% while in the infrapopliteal segment it was 94.5%.
Multidetector CT angiography was found to be a reliable alternative mean for pathoanatomical description of the arterial lesions in critical lower limb ischemia and its subsequent management in comparison to digital subtraction angiography.
腹主动脉髂动脉及下肢动脉的CT血管造影（CTA）是CT成像技术中一项相对较新的创新，在多排探测器扫描仪引入后发生了变化。
本研究旨在评估多层螺旋CT血管造影（MDCTA）在评估外周动脉闭塞性疾病（PAOD）患者动脉树方面的诊断准确性，并与数字减影血管造影（DSA）进行比较。
2017年2月至2017年10月，对50例主诉外周动脉疾病（慢性期）的患者进行了单中心非随机前瞻性研究。所有患者在确定性治疗前均接受了DSA和CTA检查。然后使用最大密度投影、容积再现和曲面多平面重组技术对图像进行分析。
根据临床表现，本研究纳入的所有患者均易感。统计分析显示，在评估股腘段狭窄方面，CTA和DSA之间存在高度显著差异（P<0.01），而在腘以下段，CTA和DSA之间无统计学显著差异，CTA和DSA的无意义狭窄分别为8%和14%，显著狭窄分别为62%和47%。CT血管造影在股腘段的总体准确率为95.20%，在腘以下段为94.5%。
与数字减影血管造影相比，多层螺旋CT血管造影被发现是一种可靠的替代方法，可用于对严重下肢缺血的动脉病变进行病理解剖描述及其后续治疗。
