CAJ | 학술논문

目的：探讨一次增强完成头颈部双期扫描在头颈部血管狭窄中的应用价值。方法对51例可疑头颈部动脉狭窄的患者分别行3D CE‐M RA双期和DSA检查，对成像结果进行相关性比较。结果与DSA相比，3D CE‐M RA动脉期及3D CE‐M RA双期诊断头颈部动脉狭窄灵敏度、特异度、阳性预测值、阴性预测值、总符合率分别为90．81％和90.81％、92．96％和95．62％、71．79％和80．38％、98．09％和98．14％、92．6％和94．83％；诊断头颈部动脉轻度、中度、重度狭窄、闭塞的符合率分别为：81．10％和89．86％；60．65％和74．07％；91．30％和95．45％；78．58％和91．67％。结论3D CE‐M RA双期（动脉期后加做第二期）扫描，额外耗时少，不用增加对比剂剂量，不用增加患者额外经济负担，还能提供比3D CE‐M RA动脉期更丰富的影像信息，更高的诊断准确性。
목적：탐토일차증강완성두경부쌍기소묘재두경부혈관협착중적응용개치。방법대51례가의두경부동맥협착적환자분별행3D CE‐M RA쌍기화DSA검사，대성상결과진행상관성비교。결과여DSA상비，3D CE‐M RA동맥기급3D CE‐M RA쌍기진단두경부동맥협착령민도、특이도、양성예측치、음성예측치、총부합솔분별위90．81％화90.81％、92．96％화95．62％、71．79％화80．38％、98．09％화98．14％、92．6％화94．83％；진단두경부동맥경도、중도、중도협착、폐새적부합솔분별위：81．10％화89．86％；60．65％화74．07％；91．30％화95．45％；78．58％화91．67％。결론3D CE‐M RA쌍기（동맥기후가주제이기）소묘，액외모시소，불용증가대비제제량，불용증가환자액외경제부담，환능제공비3D CE‐M RA동맥기경봉부적영상신식，경고적진단준학성。
Objective To explore the application of dual‐phase 3D CE‐MRA in head and carotid artery stenosis .Methods The dual‐phase 3D CE‐MRA and digital subtraction angiography (DSA) were performed in 51 cases suspected with head and carotid artery stenosis .We made a correlated comparison concerning the diagnostic results of arterial‐phase 3D CE‐MRA ,dual‐phase 3D CE‐MRA and DSA .Results Compared with the results of DSA ,which was regarded as the “gold standard” ,the sensitivity ,specificity ,positive predictive values ,negative predictive values and the total corresponding rate of arterial‐phase and dual‐phase 3D CE‐MRA in head and carotid artery stenosis were 90 .81% and 90 .81% ,92 .96%and 95 .62% ,98 .09% and 98 .14% ,71 .79% and 80 .38% ,92 .6% and 94 .83% ,respectively .The consistent rates in di‐agnosis on mid‐stenosis ,moderate‐stenosis ,severe‐stenosis and complete occlusion were 81 .10% and 89 .86% ;60 .65%and 74 .07% ;91 .30% and 95 .45% ;78 .58% and 91 .67% .Conclusion Compared with the arterial‐phase 3D CE‐MRA , the dual‐phase 3D CE‐MRA is less time‐consuming .It results in fewer doses of the contrast media ,reducing patience’s cost ,but providing more accurate diagnosis .The dual‐phase 3D CE‐MRA has particular advantage and will be a safe ,non‐invasive ,reliable and new examination in diagnosis of head and carotid artery stenosis .