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为了研究低浓度低剂量碘对比剂在犬肾动脉CT血管成像中的可行性,试验将6只健康家犬随机分为3组,分别接受低浓度不同剂量碘对比剂,然后进行犬肾动脉CT血管成像扫描,测量所获图像CT值并进行评分。结果表明:低浓度低剂量碘对比剂组可清晰显示双侧肾动脉及其3级分支,各剂量组间的肾动脉清晰度及分支显示情况评分结果差异不显著(P>0.05);各剂量组犬肾动脉走行5个层面的CT值随着碘对比剂剂量降低呈现下降趋势,但CT值均大于200 Hu,各组间比较差异不显著(P>0.05)。说明应用低浓度低剂量碘对比剂进行犬肾动脉CT血管成像,可获得满足临床诊断要求的图像。
In order to study the feasibility of low concentration and low dose iodine contrast agent in canine renal artery CT angiography, six healthy domestic dogs were randomly divided into three groups, respectively, receiving low concentrations of different doses of iodine contrast agent, and then canine renal artery CT Angiography scan, CT images were measured and scored. The results showed that the low-dose and low-dose iodine contrast agent group can clearly show the bilateral renal arteries and their third-grade branches. The differences of the renal artery sharpness and the branches showed no significant difference between the various dose groups (P> 0.05) The CT values of 5 layers of renal arteries of the dogs decreased with the dose of iodine contrast agent decreasing, but the CT values were all higher than 200 Hu. There was no significant difference between the groups (P> 0.05). Description of low-dose low-dose iodine contrast agent canine renal artery CT angiography can be obtained to meet the clinical diagnostic requirements of the image.