CAJ | 학술논문

目的应用背向散射积分(IBS)技术研究腹主动脉瘤(AAA)腔内血栓的性质,探讨腔内血栓形成时间以及与AAA破裂的关系.方法对29例AAA腔内血栓进行IBS参数测定,对均质型、非均质型血栓(按照回声性质分为近管腔和近管壁两层血栓)的IBS参数(AII:平均值,SDI:离散度)进行统计学分析,并采集血栓标本行病理组织观察比较.结果 ①均质型组中AII个体间差异较大,而SDI值均低.均质型与近管腔层面SDI值均低,两组间差异无统计学意义(P>0.05).非均质型组中近管壁层面血栓AII值与SDI值均高,与其他组比较有差异有统计学意义(P<0.01).②在非均质型近管壁血栓中纤维素含量高,均质及非均质型近管腔组血栓中纤维素含量低.结论 IBS参数可对AAA腔内血栓的组织学特征进行客观的定量依据,为研究AAA发展规律和破裂风险提供重要信息.
목적 응용배향산사적분(IBS)기술연구복주동맥류(AAA)강내혈전적성질,탐토강내혈전형성시간이급여AAA파렬적관계.방법 대29례AAA강내혈전진행IBS삼수측정,대균질형、비균질형혈전(안조회성성질분위근관강화근관벽량층혈전)적IBS삼수(AII:평균치,SDI:리산도)진행통계학분석,병채집혈전표본행병리조직관찰비교.결과 ①균질형조중AII개체간차이교대,이SDI치균저.균질형여근관강층면SDI치균저,량조간차이무통계학의의(P>0.05).비균질형조중근관벽층면혈전AII치여SDI치균고,여기타조비교유차이유통계학의의(P<0.01).②재비균질형근관벽혈전중섬유소함량고,균질급비균질형근관강조혈전중섬유소함량저.결론 IBS삼수가대AAA강내혈전적조직학특정진행객관적정량의거,위연구AAA발전규률화파렬풍험제공중요신식.
Objective To investigate the value of ultrasound integrated backscatter (IBS) in quantitative analysis of in-traluminal thrombus in abdominal aortic aneurysm (AAA).Methods IBS of intraluminal thrombus in 29 patients were measured,including All (average image intensity) and SDI (standard deviation of image intensity).Meanwhile,different echoes and characteristics of IBS in thrombus were compared and pathologic analysis was performed.Results ①Individual All value of homogenous thrombus differed remarkably,SDI value was low.There was no significant difference about All in homogeneous group and adjacent cavity group (P>0.05).All and SDI value in adjacent wall group were higher than those in other groups (P<0.01).②According to pathologic analysis,cellulose contents were abundant in adjacent wall group,but fewer in adjacent cavity group and homogeneous group.Conclusion IBS might be regarded as a sensitive and specific method and a quantitative basis for estimating and predicting the rupture risk of AAA.