CAJ | 학술논문

目的：使用2种不同的注射方式对肝硬化伴门脉高压患者进行门脉系统血管成像,探讨门静脉系统血管成像技术的优化。方法对40例患者随机采用单相注射方式(A组)及双相注射方式(B组)进行门脉系统血管成像,比较并分析2种注射方式的成像质量及技术优势。结果(1)2组注射方式门静脉成像图像质量无明显差异(P>0.05),B 组对比剂用量(90 mL)少于 A 组(100 mL)。(2)B组患者的门静脉主干、肝实质及门静脉与肝脏的密度(P-L)差峰值的 CT 值均稍低于 A 组患者,但无统计学差异(P>0.05)。在45 s之后B组的P-L差大于A组；B组患者的门静脉主干、肝实质及P-L差的达峰值时间均长于A组患者,存在统计学差异(P<0.05)。(3)P-L差曲线图显示：B组P-L差的阈值间期长于 A组。结论双相注射方式对于肝硬化门脉高压患者的门静脉系统成像质量可靠,且对比剂使用总剂量较少,可作为肝硬化门脉高压患者门脉血管成像的一种优化的技术选择。
목적：사용2충불동적주사방식대간경화반문맥고압환자진행문맥계통혈관성상,탐토문정맥계통혈관성상기술적우화。방법대40례환자수궤채용단상주사방식(A조)급쌍상주사방식(B조)진행문맥계통혈관성상,비교병분석2충주사방식적성상질량급기술우세。결과(1)2조주사방식문정맥성상도상질량무명현차이(P>0.05),B 조대비제용량(90 mL)소우 A 조(100 mL)。(2)B조환자적문정맥주간、간실질급문정맥여간장적밀도(P-L)차봉치적 CT 치균초저우 A 조환자,단무통계학차이(P>0.05)。재45 s지후B조적P-L차대우A조；B조환자적문정맥주간、간실질급P-L차적체봉치시간균장우A조환자,존재통계학차이(P<0.05)。(3)P-L차곡선도현시：B조P-L차적역치간기장우 A조。결론쌍상주사방식대우간경화문맥고압환자적문정맥계통성상질량가고,차대비제사용총제량교소,가작위간경화문맥고압환자문맥혈관성상적일충우화적기술선택。
Objective To compare the image quality of portal venous system in the patients with live cirrhosis and portal hyper-tension using two different inj ection methods,so as to investigate the optimization of imaging techniques.Methods Single-phase in-jection (group A)or biphasic injection (group B)was applied by random on 40 patients for portal venous system vascular imaging, and subsequently image quality and technical advantages between the two groups were compared and analyzed respectively.Results 1.There was no significant difference in image quality between the two groups(P>0.05),while contrast agent dosage (90 mL)in group B is less than group A(100 mL).2.The CT value of Portal vein,liver parenchyma and P-L discrepancy in group B were slightly lower than those in group A,however,no statistical difference was noted(P>0.05).After 45 second,the P-L discrepancy of group B was larger than that of group A.The peak times of portal vein,liver parenchyma and the P-L discrepancy in group B were longer than those in group A(P<0.05).3.The graph of P-L discrepancy demonstrated:the threshold interval of P-L discrep-ancy in group B was longer than that in group A.Conclusion Biphasic inj ection methods could not only afford reliable imaging quali-ty on portal venous system vascular imaging in the patients with liver cirrhosis and portal hypertension,but also lead to a less total dose of contrast agent.Therefore,it could be used as an optimal choice of imaging technology for portal venous system vascular ima-ging.