CAJ | 학술논문

目的：比较CT血管造影（CTA）方法对颅脑血管造影的影响，寻找在不同情况下采用何种扫描方式能达到最佳的造影效果。方法选取C T A患者350例，采用减影法236例，经验值法13例，智能法68例，复合法33例，通过对经验值法、智能跟踪法、减影法、智能跟踪与减影结合法4种扫描方法的对比、分析，通过盲评法分析评价。结果智能跟踪和减影结合扫描法与减影扫描方法的图像质量优良率分别为93．93％和93．64％，差异无统计学意义。经验值法与智能跟踪方法获得的图像质量优良率只有76．92％和66．18％，差异有统计学意义。结论减影扫描方法可以作为常规的扫描方法。在小剂量团注时间密度曲线检测失败的情况下，采用智能跟踪与减影结合的扫描方法会得到与减影方法一样的图像质量效果，该方法是减影扫描方法的有效补充，值得推广。
목적：비교CT혈관조영（CTA）방법대로뇌혈관조영적영향，심조재불동정황하채용하충소묘방식능체도최가적조영효과。방법선취C T A환자350례，채용감영법236례，경험치법13례，지능법68례，복합법33례，통과대경험치법、지능근종법、감영법、지능근종여감영결합법4충소묘방법적대비、분석，통과맹평법분석평개。결과지능근종화감영결합소묘법여감영소묘방법적도상질량우량솔분별위93．93％화93．64％，차이무통계학의의。경험치법여지능근종방법획득적도상질량우량솔지유76．92％화66．18％，차이유통계학의의。결론감영소묘방법가이작위상규적소묘방법。재소제량단주시간밀도곡선검측실패적정황하，채용지능근종여감영결합적소묘방법회득도여감영방법일양적도상질량효과，해방법시감영소묘방법적유효보충，치득추엄。
Objective To explore CT angiography(CTA) method for the influence of the cerebral angiography ,looking for dif-ferent situations using which kind of scan mode can achieve the best results .Methods 350 CTA patients were selected and tested by 4 kinds of scanning methods which were subtraction scan (236) ,experience value scan (13) ,smart tracking scan (68) ,smart tracking and subtraction combined(33) .To compare and analyze that four kinds of scanning methods ,to explore which kind of method under what circumstances can get the best examination results .Results Smart tracking and subtraction combined with scan method and subtraction scan method for excellent rate of image quality were 93 .93% and 93 .64% respectively ,there were no sig-nificant statistical differences between them .Experience value method and smart tracking method for excellent rate of image quality were only 76 .92% and 66 .18% ,there was significant difference in statistics .Conclusion Subtraction scan can be used as a conventional scan method .In low dose test bolus of time-density curve detection failure cases ,smart tracking and subtraction combined with scan method was used to get the image quality with subtraction scan method ,it is an effective complement of subtraction scan method ,is worth generalization .