CAJ | 학술논문

目的：探讨 Flash 双源对比剂优化方案在冠状动脉 CT 血管造影(CTA)中的应用价值。方法252例临床疑冠心病行冠状动脉 CTA 检查者,根据体重分组个体化注射对比剂,分别测量升主动脉近端,右冠状动脉主干近段及左冠状动脉主干的 CT值,并对图像质量进行主观评分。结果据本方案行冠状动脉 CTA 检查后,各组升主动脉近端平均 CT 值(HU)分别为399.35±58.55、416.10±49.79、419.39±47.40、405.71±55.44、396.81±49.16；右冠状动脉主干近段平均 CT 值分别为405.6±61.71、421.60±58.89、423.88±53.59、407.7±58.45、405.32±55.84；左冠状动脉主干平均 CT 值分别为397.54±60.59、423.41±53.08、422.74±50.29、409.49±60.05、402.80±54.80。冠状动脉图像质量评分分别为4.59±0.31、4.66±0.25、4.64±0.32、4.63±0.51、4.62±0.43,组间差异无统计学意义(F =1.81,P >0.05)。结论应用 Flash 双源个体化注射方案行冠状动脉 CTA 检查不仅可以满足诊断要求,还可以使对比剂的用量降低,具有良好的可行性。
목적：탐토 Flash 쌍원대비제우화방안재관상동맥 CT 혈관조영(CTA)중적응용개치。방법252례림상의관심병행관상동맥 CTA 검사자,근거체중분조개체화주사대비제,분별측량승주동맥근단,우관상동맥주간근단급좌관상동맥주간적 CT치,병대도상질량진행주관평분。결과거본방안행관상동맥 CTA 검사후,각조승주동맥근단평균 CT 치(HU)분별위399.35±58.55、416.10±49.79、419.39±47.40、405.71±55.44、396.81±49.16；우관상동맥주간근단평균 CT 치분별위405.6±61.71、421.60±58.89、423.88±53.59、407.7±58.45、405.32±55.84；좌관상동맥주간평균 CT 치분별위397.54±60.59、423.41±53.08、422.74±50.29、409.49±60.05、402.80±54.80。관상동맥도상질량평분분별위4.59±0.31、4.66±0.25、4.64±0.32、4.63±0.51、4.62±0.43,조간차이무통계학의의(F =1.81,P >0.05)。결론응용 Flash 쌍원개체화주사방안행관상동맥 CTA 검사불부가이만족진단요구,환가이사대비제적용량강저,구유량호적가행성。
Objective To investigate the value of the optimal contrast medium injection protocol in dual-source CT coronary angi-ography (CTCA).Methods 252 patients with suspected coronary artery disease underwent CTCA,CT values were measured in the proximal of ascending aorta,right coronary artery,left coronary artery,and image quality was evaluated subjectively with 5-points method.Results After the CTCA inspection via the individuation of contrast agent injection scheme,the mean CT values of ascend-ing aorta were 399.35±58.55,41 6.10±49.79,41 9.39±47.40,405.71±55.44,396.81±49.1 6,respectively,the mean CT values of right coronary artery were 405.6±61.71,421.60 ±58.89,423.88 ±53.59,407.7 ±58.45,405.32 ±55.84,respectively.The mean CT values of left coronary artery were 397.54±60.59,423.41±53.08,422.74±50.29,409.49±60.05,402.80±54.80,respective-ly.The image quality grades were 4.59±0.31,4.66±0.25,4.64±0.32,4.63 ±0.5 1,4.62 ±0.43,respectively,and there was no statistically significant difference among the groups(F =1.81,P >0.05).Conclusion The application of individual injection scheme can not only meet the diagnostic requirements,but also reduce the contrast agent dosage in dual-source CTCA.