对比剂团注跟踪技术在糖尿病患者下肢血管病变中的应用

Application of bolus chasing technology in lower limb artery angiography of diabetes mellitus

目的比较对比剂团注跟踪造影技术(BCA)与数字减影血管造影法(DSA)在下肢动脉造影中的临床应用价值。方法回顾性分析我院12例采用BCA及20例采用DSA行下肢动脉造影的患者的X线吸收剂量、对比剂用量、造影完成时间,并对BCA图像质量进行分级评价。结果采用BCA和DSA法完成单侧下肢动脉造影患者的X线吸收剂量分别为(12.3±2.4)、(23.4±2.5)mGy,对比剂用量分别为(20±5)和(30±4)mL,造影完成时间分别为(4.9±1.5)、(12.3±0.9)min,差异均具有统计学意义(P<0.05)。结论采用BCA进行下肢动脉造影较传统DSA法检查具有使用对比剂少、检查时间短、图像直观等优点,且能一次性准确显示全下肢血管的解剖情况,值得临床进一步推广应用。

Objective To study the value of bolus chasing technology in lower limb artery angiography and its quality control by comparing with static digital subtraction angiography （DSA）. Methods Twelve cases underwent lower limb artery angiography by using bolus chasing technology, and 20 eases by using traditional static DSA segmentation method. The radiation dose, the dosage of contrast agents, completion time and image quality were compared between the two groups. Results The radiation dose were （12.3±2.4） mGy （bolus chasing group） and （23.4±2.5） mGy （traditional DSA segmentation method） respectively. The dosage of contrast agents were （20±5） mL and （30±4） mL respectively. The completion time were （4.9±1.5） rain and （12.3±0.9） min. Conelusion Bolus chasing technology is a good method in lower limb artery angiography with a low dose of radiation, a short time of examination and good quality of imaging.