CAJ | 학술논문

目的　探讨二维血流显像(B-Flow)技术在肾衰血透患者动静脉瘘中的应用价值。方法　对31例尿毒症患者人工动静脉瘘分别采用彩色多普勒血流图(CDFI)、血流功率图(PDI)和B-Flow三种模式显示瘘口和动静脉侧血管情况，着重观察吻合口和动静脉侧血管形态、管壁情况以及管腔内血流显示情况，并进行血流动力学检测。结果　本组31例检查对象，端端吻合23例，端侧吻合3例，侧侧吻合2例，人造血管吻合3例。吻合口平均内径5 mm。吻合口狭窄6例,血栓形成4例。B-Flow技术能同时清晰显示血流和邻近背景组织，与CDFI、PDI结合使用可提高异常图像显示率。B-Flow与CDFI、PDI比较，具有更高帧频、高分辨力和全景显示功能。结论　B-Flow技术是监测血透患者治疗过程中造瘘血管状况的有效检测手段之一。动静脉瘘主要并发症是吻合口狭窄、静脉段瘤样扩张和形成血栓。
목적　탐토이유혈류현상(B-Flow)기술재신쇠혈투환자동정맥루중적응용개치。방법　대31례뇨독증환자인공동정맥루분별채용채색다보륵혈류도(CDFI)、혈류공솔도(PDI)화B-Flow삼충모식현시루구화동정맥측혈관정황，착중관찰문합구화동정맥측혈관형태、관벽정황이급관강내혈류현시정황，병진행혈류동역학검측。결과　본조31례검사대상，단단문합23례，단측문합3례，측측문합2례，인조혈관문합3례。문합구평균내경5 mm。문합구협착6례,혈전형성4례。B-Flow기술능동시청석현시혈류화린근배경조직，여CDFI、PDI결합사용가제고이상도상현시솔。B-Flow여CDFI、PDI비교，구유경고정빈、고분변력화전경현시공능。결론　B-Flow기술시감측혈투환자치료과정중조루혈관상황적유효검측수단지일。동정맥루주요병발증시문합구협착、정맥단류양확장화형성혈전。
Objective　To explore and understand the practical value of B-Flow in arteriovenous fistula in patients with uremia for the hemodialysis.Methods　Upper limbs arteriovenous fistulas in 31 patients with uremia were examined and analyzed by CDFI, PDI and B-flow. It is important to observe conformation of fistula and blood vessel and examine changes on hemodynamics.Results　Among these cases, 23 patients were operated with end-to-end anastomoses, 3 patients with end-to-side anastomoses,2 patients with side-to-side anastomoses,and 3 patients with manmade blood vessels. The average diameter of anastomotic orifice is 5 mm.There are 6 patients with the stenosis of anastomotic orifice and 4 patients with thrombus formation. B-Flow technique can display blood flow and background tissue distinctly at the same time. B-Flow include wide bandwidth, high frame rate and high dynamic range for high spatial, temporal and contrast resolution imaging, respectively.Conclusions　B-Flow is an effective detective methods in patients with uremia during hemodialysis treatment. The main complication involved in is the stenosis of anastomotic orifice, venus dilatation and thrombus formation in individual case.