多发性大动脉炎外周血管的超声诊断

目的 探讨多发性大动脉炎外周血管病变的超声表现。方法 采用美国GE公司生产的VIVID3彩色多普勒超声诊断仪。探头频率7.5MHz，对10例多发性大动脉炎患行二维及多普勒超声检查。结果 大动脉炎患受累血管分布为头臂动脉9例，其中锁骨下动脉9例，颈总动脉8例；腹主动脉5例，肾动脉3例，肺动脉1例，病变血管壁厚度2．0～5.0mm，管腔不同程度狭窄、闭塞及出现盗血现象。结论 超声诊断可较全面显示多发性大动脉炎形态学改变并可了解其血流动力学改变，应作为临床诊断多发性大动脉炎常规方法。     

彩色多普勒超声诊断大动脉炎外周血管病变的价值

目的 探讨大动脉炎外周血管病变的彩色多普勒超声表现。方法 采用美国惠普公司生产的8500彩色多普勒超声检测仪,探头频率7．5MHz,对50例大动脉炎患者外周血管进行二维超声、彩色及脉冲多普勒超声检测。结果 大动脉炎侵及血管分布：头臂动脉为主38例,其中锁骨下动脉6例;主肾动脉12例,合并血栓形成3例。表现为病变动脉血管管壁增厚,管腔狭窄、闭塞,出现盗血。结论 彩色多普勒超声诊断大动脉炎有确切的价值,应作为临床诊断大动脉炎的首选方法。     

彩色多普勒超声对外周血管大动脉炎病变的诊断价值

目的探讨彩色多普勒超声对外周血管大动脉炎病变的诊断价值。方法选取120例外周血管大动脉炎病变患者,所有患者均采取常规二维超声检查以及彩色多普勒血流显像(CDFI)检查,并比较单纯二维超声检查与二维超声结合CDFI检查对外周血管大动脉炎病变的检出率。结果二维超声结合CDFI组患者对锁骨下动脉、颈总动脉、股动脉、肱动脉、肾动脉和腹主动脉大动脉炎的诊断率明显高于单纯二维超声组(P0.05)。结论与二维常规超声技术相比,CDFI诊断外周血管大动脉炎具有较高的临床价值。     

彩色多普勒超声对多发性大动脉炎的诊断与分析

目的应用彩色多普勒超声诊断多发性大动脉炎引起的外周动脉血管及心脏病变的超声表现进行分析。方法彩色多普勒超声诊断仪，常规检查外周血管及心脏。结果5例患中，2例头臂动脉型，其中1例合并心脏病变；1例腹主动脉型；1例股总动脉型；1例。肾动脉型。超声表现为病变血管内中膜增厚不均匀，管壁不同程度的狭窄，其中1例左房、左室扩大伴左心功能减低(EF42％)。结论大动脉炎累及最多的血管为锁骨下动脉及颈总动脉，其次为腹主动脉、肾动脉、股动脉，同时可累及心脏。     

头臂型大动脉炎彩色多普勒超声诊断价值

目的：探讨头臂型大动脉炎颈动脉、椎动脉及锁骨下动脉的彩色多普勒超声改变。方法：分析52例大动脉炎病变动脉二维及彩色多普勒声像图指标。结果：52例大动脉炎受累血管分布为：颈动脉36例,锁骨下动脉16例,病变血管壁厚0.1~2.5 cm。管腔不同程度狭窄、局限扩张及闭塞,并出现椎动脉盗血现象。结论：超声检查可显示病变血管形态学及血流动力学改变,可作为临床诊断大动脉炎的常规检查方法。     

超声对多发性大动脉炎患者外周血管及心脏病变的诊断价值

目的探讨多发性大动脉炎（Takayasu arteritis,TA）患者外周血管及心脏病变的超声诊断价值。方法回顾性分析33例TA患者的临床、实验室检查资料及病变动脉和心脏的二维彩色多普勒超声检查结果。结果①所有患者血管病变均至少累及两支以上动脉,最多见于颈动脉受累,占66.7%（22/33）;其次为锁骨下动脉,占45.5%（15/33;）肾动脉占36.4%（12/33）;腹主动脉占18.2%（6/33）;股动脉占6.1%（2/33）;②检出心脏病变患者占72.7%（24/33）,其中左房、左室扩大伴心脏收缩、舒张功能减低者24.2%（8/33）;左房扩大、左心室肥厚者21.2%（7/33）;右房、右室扩大合并肺动脉高压者39.4%（13/33）;3例患者左室附壁血栓形成;部分患者伴少量心包积液。结论超声可客观显示TA患者病变动脉及心脏和血管的形态及其血流动力学改变,是临床诊断多发性大动脉炎的首选检查方法。     

多发性大动脉炎的彩色多普勒超声诊断价值

目的研究多发性大动脉炎的彩色多普勒超声诊断价值。方法回顾性分析66例多发性大动脉炎患者周围血管的彩色多普勒超声表现。结果多发性大动脉炎累及多支大血管,以头臂动脉最多。受累血管声像图表现为对称的管壁增厚,管腔狭窄或闭塞,彩色多普勒显示相应血流动力学改变。与血管造影比较,彩色多普勒超声敏感性79.2%。结论彩色多普勒超声可较准确、直观地显示多发性大动脉炎血管受累的性质和范围,是诊断多发性大动脉炎有效方法之一。     

多发性大动脉炎的超声声像图特征

目的 探讨多发性大动脉炎血管病变的超声表现。方法 使用Sonos 5500超声诊断仪，探头频率5～10MHz，对8例多发性大动脉炎患行二维及多普勒超声检查。结果 大动脉炎患受累血管分布为头臂动脉7例，其中颌骨下动脉7例，颈总动脉6例，腹主动脉1例，肾动脉1例。病变血管壁内膜-中层厚度1.8-3.6cm，管腔都有不同程度的狭窄及闭塞。结论 大动脉炎超声声像图特征是动脉内膜-中层厚度弥漫性增厚，回声偏低，管腔狭窄或闭塞，为临床提供有价值的诊断信息。     

混合型多发性大动脉炎的超声特征

用三种不同频率的彩色多谱勒超声探头对 10例混合型多发性大动脉炎进行检查 ,探讨其超声特征和诊断价值。资料与方法10例混合型多发性大动脉炎患者 ,女 7例 ,男 3例。年龄18～ 33岁 ,平均 2 5岁 ,10例中有 8例高血压 ,另 2例 ,1例右上肢血压正常 ,左上肢测不到血压为无脉症 ,另一例血压在正常范围。采用Ａｐｏｇｅｅ 40 0型彩色多普勒超声诊断仪 ,分别用三种宽频带探头 :7～ 11.0ＭＨｚ高频线阵探头对外周动脉血管进行检查 ;2 5～ 5 .0ＭＨｚ凸阵探头对腹部脏器进行检查 ,重点是双侧肾脏情况 ;2 5～ 6 .0ＭＨｚ环阵探头对心脏进行检查。患…     

大动脉炎超声检查与DSA对照研究

应用二维超声显像,脉冲或加彩色多普勒诊断10例大动脉炎,并均经DSA检查证实。10例中受累最多的血管为颈动脉及锁骨下动脉,2例合并腹主动脉夹层动脉瘤。二维超声显示病变血管壁活动僵硬、内膜不规则增厚、管腔狭窄或闭塞,多普勒显示狭窄血管内异常彩色血流束及血流速度频谱。超声检查与DSA同样对大动脉炎有确诊价值,并具有无创、简便、重复性好等优点,可作为临床诊断大动脉炎首选方法。     

Color Doppler sonographic mapping of pulmonary lesions: evidence of dual arterial supply by spectral analysis.

OBJECTIVE: Within pulmonary lesions, flow signals of pulmonary arteries can be discriminated from flow signals of central bronchial and peripheral bronchial arteries on color Doppler sonography. Our aim was to evaluate the evidence and frequency of different arterial supplies of pleural-based pulmonary lesions using qualitative and quantitative color Doppler sonography. METHODS: Forty-one patients with roentgenologically confirmed pleural-based pulmonary lesions were investigated by color Doppler sonography. The following parameters were investigated: (1) qualitative color Doppler sonographic evidence of vascularization, (2) quantitative color Doppler sonographic evidence of arterial flow signals (resistive index and pulsatility index), and (3) number of different arterial flow signals in 1 lesion by color Doppler sonographic mapping. RESULTS: We found no vascularization in 5 patients, sparse vascularization in 21, and pronounced vascularization in 15. Quantitative color Doppler sonographic parameters were as follows: mean pulmonary artery resistive index, 1.2; mean central bronchial artery resistive index, 0.5; mean peripheral bronchial artery resistive index, 0.7; mean pulmonary artery pulsatility index, 7.8; mean central bronchial artery pulsatility index, 0.7; and mean peripheral bronchial artery pulsatility index, 1.6. There was a significant difference between all types of flow signals for resistive and pulsatility index values but not between pulmonary and peripheral bronchial arteries (P = .068). In 41 patients, 57 different arterial flow signals were determined; 19 (46%) of these patients had 2 or more different arterial flow signals in a lesion. There was no significant difference between benign and malignant lesions regarding the number of flow signals. CONCLUSIONS: Evidence of at least a dual arterial supply can be found on quantitative color Doppler sonography in almost 50% of pulmonary lesions. A single spectral analysis is not suitable for characterization of the arterial supply of pulmonary lesions.     

彩超诊断肝移植术后肝动脉血栓和狭窄的价值

目的:探讨彩超对肝移植术后肝动脉血栓和狭窄的诊断价值。方法:彩超检查135例肝移植术后患者的肝实质回声、肝动脉血流、肝动脉阻力指数、收缩期加速度时间、频谱流速曲线形态。结果:彩超发现肝动脉血栓7例。4例出现肝内单发或多发低回声区,6 例显示肝门或肝内无动脉血流,1例表现为肝动脉阻力指数降低和收缩期加速度时间延长,肝动脉狭窄2例,肝动脉阻力指数降低和收缩期加速度时间延长。结论:彩超对肝移植术后肝动脉并发症的检测具有重要价值。     

彩超对经股动脉心导管术后血管并发症的诊断价值

目的：探讨彩超诊断股动脉医源性并发症的临床价值。方法：分析33例有血管并发症患者的灰阶、彩色多普勒血流显像及脉冲多普勒表现。结果：所有病例中，31例彩超诊断为假性动脉瘤，2例诊断为动静脉瘘。结论：彩色多普勒超声对经股动脉心导管术后并发症诊断的准确性高，可作为术后血管并发症检查的首选方法。     

彩色多普勒超声在诊断巨细胞颞动脉炎中的应用价值

目的：探讨彩色多普勒超声在诊断巨细胞颞动脉炎（GCTA）中的临床应用价值及其超声分型。方法：分析经病理证实的15例GCTA的超声表现和特点,并根据声像图特征进行超声分型。结果：GCTA的超声形态学特征性改变为：二维超声图像上主要表现为血管壁呈向心性增厚,血管腔内径变窄;彩色多普勒血流显像示颞动脉血管腔周围有一特征性的低回声“晕”;另一种表现为血管壁呈不规则增厚,回声增强,血管腔狭窄,血管腔内血流信号呈周边充盈缺损样改变。超声诊断阳性病例为15例,临床病理活检证实12例,3例为超声诊断假阳性,超声诊断准确率为80％,敏感性为100％。根据超声图像改变,将GCTA分为两型：肉芽肿型和类动脉硬化型。结论：高分辨力超声诊断GCTA简单、适用、无创伤性,有助于提高GCTA的诊断准确率。     

Sonographic diagnosis of a giant aneurysm of the common hepatic artery

Hepatic artery aneurysms are rare vascular lesions sometimes found incidentally during abdominal imaging. We present the case of a 61-year-old man whose initial symptoms were tenderness in the right upper quadrant of the abdomen and epigastric pain. Gray-scale sonography revealed ascites and an 8.1-cm mass in the region of the porta hepatis; color Doppler sonography revealed a turbulent arterial waveform with high peak systolic velocity. We diagnosed a giant aneurysm of the common hepatic artery. Three-dimensional CT angiography confirmed this diagnosis and also revealed hemoperitoneum. The patient underwent aneurysmectomy and recovered well. This case shows that the use of both sonography and CT angiography offers a promising alternative to conventional angiography for the diagnosis of and treatment planning for hepatic artery aneurysms.     

Post-traumatic intrasplenic pseudoaneurysms with delayed rupture: color Doppler sonographic and CT findings.

Post-traumatic intrasplenic pseudoaneurysms are very rare in children. Since pseudoaneurysms may expand a splenic hematoma and cause delayed splenic rupture, early diagnosis and treatment are crucial. In this report, we describe the case of a 12-year-old boy with a delayed splenic rupture caused by a splenic hematoma containing 2 pseudoaneurysms. Abdominal sonography showed free intraperitoneal fluid and a mildly enlarged spleen with a large heterogeneous area occupying the upper half of the organ. Two anechoic lesions (15 and 4 mm) were seen inside the hematoma near the splenic hilum. Color Doppler sonography demonstrated turbulent arterial flow within the lesions, suggesting pseudoaneurysms. On CT, the lesions enhanced simultaneously with the splenic artery in the arterial phase of contrast enhancement. CT also showed an intrasplenic arterial branch leading to the larger of the 2 pseudoaneurysms.     

Reliability of intrarenal Doppler sonographic parameters of renal artery stenosis

PURPOSE: The goal of this study was to retrospectively evaluate false-negative results of Doppler sonography in the diagnosis of renal artery stenosis (RAS) using intrarenal criteria. METHODS: We reviewed the clinical data and Doppler sonographic data for all patients in whom a diagnosis of RAS had been confirmed angiographically between November 1992 and January 2001. Mean intrarenal acceleration and acceleration time values-data obtained directly from color Doppler sonography-and findings of angiographic examination of the kidneys and stenotic renal arteries were evaluated. RESULTS: During the study period, 55 cases of RAS had been angiographically confirmed in 46 patients (25 male and 21 female; mean age, 50 +/- 19 years [+/- standard deviation]). Intrarenal arterial acceleration, acceleration time values, or both were abnormal in 42 kidneys (76%) (group A) and normal in 13 kidneys (24%) (group B). The mean age +/- standard deviation was significantly higher for patients in group B (60 +/- 12 years) than for those in group A (47 +/- 20 years) (p > 0.05). In group B, most of the stenotic lesions were atherosclerotic, and in all kidneys but 1, the lesions were located at the renal ostium or the proximal half of the artery. CONCLUSIONS: Isolated use of intrarenal Doppler sonographic criteria for RAS may lead to an unacceptably high incidence of false-negative results in the diagnosis of this condition, especially in elderly patients.