CAJ | 학술논문

目的探讨肝动脉数字减影血管造影(DSA)的成像技术要领及影响图像质量的因素.资料与方法200份实行质量控制前(非质控组)及质量控制后(质控组)的肝动脉 DSA 片,依据照片甲级片率判定标准计算甲、乙、丙级片率,比较两组 DSA 片的非甲级片缺陷因素(包括运动或饱和伪影、导管位置欠精确、造影剂注射参数不当、窗宽窗位调节不当、诊断区未包全、照相信息捕捉不全、设备性能)发生率.结果质控组甲、乙、丙级片率分别为80.98%、14.13%、4.89%;非质控组分别为71.35%、18.61%、10.04%.质控组非甲级片缺陷因素发生率显著低于非质控组(χ2=36.968, P <0.05),在导致非甲级片的缺陷因素中,伪影居多,导管位置欠精确次之.结论影响肝动脉DSA 图像质量的因素主要有成像技术、注射参数、设备性能、后处理及照相技术,实施质量控制能显著提高肝动脉 DSA 的图像质量.
목적탐토간동맥수자감영혈관조영(DSA)적성상기술요령급영향도상질량적인소.자료여방법200빈실행질량공제전(비질공조)급질량공제후(질공조)적간동맥 DSA 편,의거조편갑급편솔판정표준계산갑、을、병급편솔,비교량조 DSA 편적비갑급편결함인소(포괄운동혹포화위영、도관위치흠정학、조영제주사삼수불당、창관창위조절불당、진단구미포전、조상신식포착불전、설비성능)발생솔.결과질공조갑、을、병급편솔분별위80.98%、14.13%、4.89%;비질공조분별위71.35%、18.61%、10.04%.질공조비갑급편결함인소발생솔현저저우비질공조(χ2=36.968, P <0.05),재도치비갑급편적결함인소중,위영거다,도관위치흠정학차지.결론영향간동맥DSA 도상질량적인소주요유성상기술、주사삼수、설비성능、후처리급조상기술,실시질량공제능현저제고간동맥 DSA 적도상질량.
Purpose To explore the image technical key points and quality control of epatic artery DSA. Materials and Methods 200 patients images randomly selected before and after quality control were graded as A, B, C according to the gradation system, the non A defect factors including movement or saturated artifact, catheter position unaccurate, contrast medium injection parameters improper, window width and window level regulated inappropriate, diagnosis area not all-round, photography information captured incomplete and equipment performance.Occurred cases and the ratio of total sequence number were comparative analyzed and discussed. Results The image quality of grade A, B, C was 80.98%, 14.13%, 4.89% in quality control group, and 71.35%, 18.61%, 10.04% in non quality control group.the non A defect factors in the ratio of total sequence number of quality control group was obviously lower than that of non quality control group (χ2=36.968,P< 0.05). Conclusion The influencing factors of hepatic artery DSA include equipment status, image technique, injection parameters, post-processing techniques and photography, the image quality can be significantly improved by quality control.