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1.
目的探讨16层螺旋CT血管成像在脑血管疾病中的诊断价值及其应用.方法分析了2011年1月~2011年12月我院对26例脑血管病变患者行16层螺旋CT双期增强扫描及数字减影血管造影(DSA)检查,CT扫描原始数据经后台工作站多功能后处理技术处理,并比较CT表现与DSA.结果26例脑血管病变,CT血管造影(CTA)检出急性脑血管闭塞8例,血管狭窄2例,脑内动脉瘤9例, Moyamoya病2例,动静脉畸形4例.除1例CTA显示大脑前动脉动脉瘤而DSA未能检出外,其余病例CTA与DSA检查结果一致.结论螺旋CT血管成像对脑血管疾病的诊断具有准确、快速的特点,可作为脑血管病变的首选检查方法.  相似文献   

2.
目的探讨16层螺旋CT血管成像在脑血管疾病诊断中的应用价值。方法21例脑血管病变患者均行16层螺旋CT双期增强扫描及数字减影血管造影(DSA)检查,CT扫描原始数据送到工作站上进行最大密度投影(MIP)、多平面重建(MPR)及容积重建(VR),讨论其CT表现并与DSA进行对照。结果CT血管造影(CTA)检出脑内动脉瘤7例,动静脉畸形5例,Moyamoya病2例,急性脑血管梗塞5例,血管狭窄2例。除1例CTA显示大脑前动脉动脉瘤而DSA未能检出外,其余病例CTA与DSA检查结果一致。结论16层螺旋CT血管成像安全、快速、无创、准确性高,可作为脑血管病变的首选检查方法。  相似文献   

3.
目的探讨16层螺旋CT血管造影(MSCTA)在颅内血管性疾病中的诊断价值。方法对339例患者行16排螺旋CT血管造影,同时采用容积重建(VR)、多平面重建(MPR)、最大密度投影(MIP)显示血管,其中45例动脉瘤、22例动静脉畸形、4例烟雾病和18例脑动脉狭窄随后进行了DSA检查或手术治疗。结果CTA诊断为动脉瘤的患者83例,动静脉畸形22例,静脉瘤2例,海绵状血管瘤3例,海绵窦动静脉瘘3例,单纯烟雾病3例,烟雾病合并动脉瘤1例,缺血性脑血管病22例,先天性变异等32例,正常病例186例,其中CTA诊断的45例动脉瘤、22例动静脉畸形、4例烟雾病和18例脑动脉狭窄与DSA检测结果及手术结果基本一致。结论MSCTA对头部血管性疾病的诊断,具有微创、快速、安全、准确性高的特点,可作为头部血管性疾病的首选影像学筛查。  相似文献   

4.
16层螺旋CTA在颅内血管性病变的诊断应用   总被引:10,自引:3,他引:10  
目的 探讨16层螺旋CT血管造影(SCTA)在颅内血管性病变的诊断价值。方法 搜集我科2004年5月~2005年9月期间,应用16层螺旋CT血管造影并使用CTA软件进行容积重建(VR)、多平面重建(MPR)、最大密度投影(MIP)、显示脑血管,诊断31例颅内血管性病变。评价其诊断病变的价值。结果 31例中诊断出颅内动脉瘤18例,动静脉畸形9例,静脉瘤2例,动脉狭窄2例。SCTA可清楚显示病变的位置、大小、形态以及与周围血管和颅骨的关系,对动静脉畸形能清晰显示供血动脉和引流静脉。结论 16层螺旋CT血管造影对颅内血管性病变的诊断,具有无创、快捷、安全、准确性高等特点,可作为颅内血管性病变的首选而有效的检查方法 。  相似文献   

5.
目的:探讨16层螺旋CT脑血管容积成像的技术优势及临床应用价值.方法:回顾性分析52临床怀疑脑血管性疾病患者的16层CT脑血管成像(CTA)资料,并与数字减影(DSA)脑血管造影检查结果或手术病理对照.结果:52例中,脑动脉瘤33例,16层CT容积成像清晰显示所有动脉瘤的形态、大小、生长方向、瘤颈特征及其与载瘤动脉的关系、瘤体与相邻血管和颅骨的三维结构关系,优于DSA.脑血管畸形8例,16层CT容积成像并显示畸形血管团的形态、范围大小以及供血动脉、引流静脉的形态及数量.烟雾病2例,16层CT容积成像显示闭塞血管近段及颅底异常增生侧枝血管.结论:16层螺旋CT脑血管成像对脑血管性病变的诊断具有较大价值,对临床治疗具有重要的指导意义.  相似文献   

6.
16排螺旋CT血管造影对脑血管病变的临床应用价值   总被引:2,自引:1,他引:1  
目的探讨16螺旋CT脑血管造影对脑血管病变的临床应用价值。方法回顾性分析86例脑血管病变的16排CTA检查资料,应用容积重建(VR)、最大密度投影(MIP)重建和多平面重建(MPR)技术对脑血管影像表现进行评价。24例行数字减影血管造影(DSA),并与CTA检查的结果进行对照。69例手术所见与CTA结果对照。结果 86例患者中诊断为动脉瘤68例,动静脉畸形(AVM)18例。86例16排CTA的VR、MIP和MPR重建图像对脑血管主干及其主要分支显示100%,大脑中动脉5级分支显示96%(83/86)。16排螺旋CT脑血管造影均清晰显示动脉瘤位置、大小、形态、瘤颈及载瘤动脉关系。也清晰显示了18例AVM的畸形血管团、供血动脉和引流静脉。结论 16排螺旋CT脑血管造影成像技术是一种无创伤的颅内血管性病变检查方法。由于它安全、方便、快速,重建图像质量高,辐射量明显减少,定性、定位明确,16排螺旋CT血管造影能为手术计划提供详实的影像资料,可作为脑动脉瘤、脑血管畸形等脑血管病变筛选的首选方法。  相似文献   

7.
螺旋CT血管造影在颅内血管疾病的临床应用   总被引:4,自引:0,他引:4  
回顾性分析 6 4例颅内血管的螺旋CT血管造影 (SCTA)的影像 ,其中 8例动脉瘤和 4例动静脉血管畸形(AVM)进行了数字减影血管造影 (DSA)并与SCTA成像对比 ,6例动脉瘤与其手术结果对比。结果 6 4例SCTA均获成功。其中显示动脉瘤 2 6例 ;AVM 8例 ,6例较大AVM的供血动脉及引流静脉均显示良好 ;脑梗塞 5例中 ,1例一侧大脑半球大面积梗塞 ,显示同侧颈内动脉阻塞 ;其余 2 9例的SCTA未见异常血管改变。 8例动脉瘤和 4例AVM的DSA检查及 6例动脉瘤进行手术者 ,其SCTA表现与DSA及手术所见相符。提示SCTA是一种检查颅内血管疾病的无创而有效的方法。  相似文献   

8.
目的 探讨 16层螺旋CT血管造影 (CTA)对脑血管病变的应用价值。方法 使用 16层螺旋CT对 18例病人行CTA检查 ,应用VR和MIP法重建 ,对血管显示情况进行评价。其中 2例动脉瘤与DSA对照 ,2例动脉瘤和 2例AVM与手术结果对照。结果  18例CTA脑血管主干其主要分支显示率 10 0 % ,大脑中动脉 5级分支显示率 94.44 %(17/18) ,清晰显示了 4例动脉瘤瘤体、瘤颈、载瘤动脉的关系及与颅骨之间的空间关系。清晰显示了 2例AVM畸形血管团 ,供血动脉和引流静脉。结论  16层螺旋CT脑血管造影重建图像质量高 ,快速、无创 ,可以作为脑血管病变首选的筛检方法。  相似文献   

9.
沈雪峰  赵连东  钟井松 《西部医学》2010,22(7):1304-1305,1307
目的对比分析DSA与SCTA检查对出血性脑血管病的确诊价值。方法对出血性脑血管病中DSA检查阳性的38例病人与之前所做的SCTA结果进行对比分析,探讨SCTA对出血性脑血管病病因诊断的准确率。结果本组病例中有29个动脉瘤在SCTA影像清晰观察到脑动脉瘤的瘤体大小、瘤颈宽度及与载瘤动脉的关系,与DSA及介入栓塞、动脉瘤夹闭术所见完全吻合,比较两种检查方法对动脉瘤瘤颈宽度、瘤体最长径数值无显著性差异,有2例在DSA检查中未发现SCTA显示部位动脉瘤,检出率为93.55%,其中大脑中动脉M2段1例、大脑前动脉A2段1例;6例动静脉畸形DSA显示清晰,SCTA清晰显示4例脑动静脉畸形血管团大小、形态及供血动脉和引流静脉,检出率为85.71%,1例显示为阴性,此例行DSA检查动静脉畸形位于胼缘动脉末端,属微小的动静脉畸形。结论 SCTA对脑血管病变的诊断既安全、方便、快速且定性、定位明确,可作为脑动脉瘤、脑血管畸形等脑血管病变筛查的首选方法。  相似文献   

10.
目的 探讨螺旋CT血管造影(SCTA)与数字减影血管造影(DSA)技术在颅脑血管病变诊断中的价值和应用.方法 选择本院接受CTA与SCTA检查的患者108例,其中98例患者同时进行DSA检查,进行分析.结果 108例患者经SCTA检查发现有101例存在脑血管异常,其中动脉瘤39例,脑动脉狭窄48例,CCF 10例,脑动静脉畸形4例,7例脑血管正常;98例行DSA检查,有4例与SCTA结果不符,其余与SCTA均相吻合,其中3例SCTA检查出脑动脉畸形,而DSA未发现,1例DSA检出了动脉瘤,而SCTA未检出,SCTA检查发现88例患者脑血管壁有钙化影,血栓附着与血管壁上.结论 DSA与SCTA是确诊颅脑血管疾病的重要方法,两者两结合可互相弥补,提高诊断的敏感性和准确性,减低误诊和漏诊率,SCTA可作为确诊脑血管疾病的首选检查方式,利于在临床中使用.  相似文献   

11.
Objective To observe blood pressure change with age in salt-sensitive teenagers whose salt sensitivity were determined by repeated testing.Methods Salt sensitivity was determined through intravenous infusion of normal saline combined with volume-depletion by oral diuretic furosemide in 55 teenagers. After five years, salt sensitivity was re-examined and subject blood pressure was followed up. Blood pressure changes in salt-sensitive teenagers were compared to that of non-salt sensitive teenagers over five years.Results After 5 years, the repetition rate of salt sensitivity determined by intravenous saline loading is 92.7%. In teenagers with salt sensitivity on the baseline, both the systolic blood pressure increments and increment rates were much higher than non-salt sensitive teenagers (12.7±12.1 mmHg vs. 2.8±5.2 mmHg, P< 0.01; 12.2%± 12.0% vs. 2.5% ±4.4%, P< 0.001,respectively). There was a similar trend for diastolic blood pressure (8.4 ± 6.4 mmHg vs. 3.7 ± 6.4 mmHg, P = 0.052; 13.2% ±10.6 % vs. 6.8%± 10.1%, P = 0.053, respectively).Conclusions Salt sensitivity determined by intravenous saline loading showed good reproducibility. Blood pressure increments with age were much higher in salt-sensitive teenagers than non-salt sensitive teenagers, especially in terms of systolic blood pressure.  相似文献   

12.
Objective: To evaluatel the value of D-dimers in patients with acute aortic dissection (AAD). Methods: This study consisted of 16 patients with AAD and 27 non-AAD patients. Serum D-dimets were measured by Sta-Liatest D-DI immunoturbidimetric assay. Results: D-dimer level was higher (P < 0.001) in patients with AAD(7.91 ± 5.52 μg/ml) than that in non- AAD group(1.57±1.24 μg/ml). D-dimer was positive (>0.4 μg/ml) in all patients with AAD and in 10 control group patients (37%). Among patients with acute AAD, D-dimers tended to be higher in Stanford A than in Stanford B (8.67 ± 4.31 μg/ml vs. 3.24±1.27 μg/ml, P <0.01). D-dimer values tended to be higher in more extended disease(3.84 ± 1.65 μg/ml, 8.57 ± 3.58 μg/ml and 11.87 ± 5.69 μg/ml in thoracic aorta, thoracic and abdominal aorta, thoracic and abdominal aorta and iliacal arteries, respectively, P < 0.05 for both 8.57 ± 3.58 and 11.87 ± 5.69 vs. 3.84 ± 1.65 ). Including the control group into the analysis, we found a sensitivity of 100%, a negative predictive value of 100%, and a specificity of 66% and a positive predictive value of 64% for D-dimer in diagnosis of AAD in our patients with suspected AAD. Conclusion: D-dimer was elevated in patients with AAD. A negative D-dimer test result could be useful in excluding AAD.  相似文献   

13.
Objective: To set up a simple and reliable rat model of combined liver-kidney transplantation. Methods: SD rats served as both donors and recipients. 4℃ sodium lactate Ringer's was infused from portal veins to donated livers,and from abdominal aorta to donated kidneys, respectively. Anastomosis of the portal vein and the inferior vena cava (IVC) inferior to the right kidney between the graft and the recipient was performed by a double cuff method, then the superior hepatic vena cava with suture. A patch of donated renal artery was anastomosed to the recipient abdominal aorta. The urethra and bile duct were reconstructed with a simple inside bracket. Results: Among 65 cases of combined liver-kidney transplantation, the success rate in the late 40 cases was 77.5%. The function of the grafted liver and kidney remained normal. Conclusion: This rat model of combined liver-kidney transplantation can be established in common laboratory conditions with high success rate and meet the needs of renal transplantation experiment.  相似文献   

14.
Increasing maternal age is the only etiological factor unequivocally linked to Down's syndrome in humans. The occurrence rate of newborns with Down's syndrome is about 1/220 in women over 35 years old. However, the occurrence rate in embryos fertilized in vitro, of the elder woman is unclear. Using FISH we screened the number of chromosome 21 in preimplanted embryos of 5 elderly women (average age, 38.4 years) to study the feasibility and necessity of screening trisomy 21 in embryos in patients over 35 years old at the in vitro fertilization (IVF) center.  相似文献   

15.
Real-time three-dimensional echocardiography (RT3DE)is a new ultrasound technique that enables dynamic threedimensional visualization and quantification of the heart in real time. Investigation of feasibility and methodology of RT3DE in determining left ventricular (LV) and right ventricular (RV) volumes, RT3DE was performed in 35 normal adults using Philips SONOS 7500 system with a 2-4 MHz matrix array transducer. The 60°×60° "pyramid" volume database was obtained and analyzed on a TomTec echo workstation. Both LV and RV volumes were calculated with four 3DE methods (i.e. apical 2, 4, 8, and 16-plane) through manually tracing ventricular endocardial borders in end diastole and end systole. Stroke volumes were then calculated. LV volume was also measured by 2DE Simpson's rule using GE VIVID 7 ultrasound machine.  相似文献   

16.
A clinical guideline for the therapeutic interventions of integrative medicine may be defined as a written document which states a series of recommendations on therapeutic interventions of integrative medicine for a special disease or condition. The guideline may provide assistance to medical professionals in making clinical decisions aimed at improving the clinical outcome of patients and reducing the costs of medical care(~'4~. Recommendations issued by a guideline should be based on the best available evidence in both Western and Chinese medicine. For fulfilling this purpose, the development of clinical guidelines for therapeutic interventions in the field of integrative medicine should follow scientific principles and undergo a rigorous processes.  相似文献   

17.
Objective:To probe into the influence of changes of ovarian hormones on the pathogenesis of the specific sub-type premenstrual syndrome(PMS)and reveal partial microcosmic mechanisms of adverse flow of liver-qi.Methods:Estradiol(E2)and progesterone(P)levels in serum were determined at different phases of menstrual cycle by radioimmunoassay.Results:In the group of PMS with adverse flow of liver-qi.the secretive peak value Of E2 and P at the follicular phase significantly decreased,and the secretive peak value at the luteal phase did not come into being.Conclusions:Low E2 and P secretive peak at the follicular phase and absence of secretive peak at the luteal phase is one of the microcosmic mechanisms of PMS with adverse flow of liver-qi.One of the pathophysiologic mechanisms of specific sub-type PMS is probably the continuous low level of E2and P.  相似文献   

18.
Journal of Nanjing Medical University (English Edition) JNMU, sponsored by Nanjing Medical University, was established in 1987. It is a bimonthly comprehensive English medical journal published locally and abroad.Since 2007, Journal of Nanjing Medical University (English Edition )was granted Elsevier the full publishing and distribution rights worldwide for the Electronic Edition, excluding the People's Republic of China.  相似文献   

19.
目的:评价使用安心颗粒对急诊经皮冠状动脉介入术(PPCI)术后生活质量的影响.方法:将160例接受PPCI的急性ST段抬高型心肌梗死患者随机分为安心颗粒组(术前顿服安心颗粒8.8g,术后安心颗粒4.4 g/次,每日2次)和对照组(仅接受基础药物治疗).所有患者均服用阿司匹林、氯吡格雷和阿托伐他汀.分别在入院时、出院前1d、出院后180 d时,应用心肌梗死多维度量表(MIDAS)、中文版SF-36评价量表对患者生活质量评分.并观察术后30 d以内的出血并发症、血小板减少症发生情况.结果:入院时和出院前1d,两组患者的心肌梗死MIDAS、SF-36量表评分比较无差异(P>0.05);出院后180 d时,与对照组比较,安心颗粒组MIDAS、SF-36评分明显减低(P<0.05);组内与入院时比较,两组出院前1d、出院后180 d时,MIDAS、SF-36评分均降低(P<0.05).两组患者在随访期间均无大量出血、少量出血、重度和极重度血小板减少症发生,安心颗粒组有4例、对照组有7例发生不明显出血(P>0.05).两组发生轻度血小板减少症的患者数比较无差异(P>0.05).结论:PPCI使用安心颗粒,能改善急性ST段抬高型心肌梗死患者的生活质量,且不增加出血风险.  相似文献   

20.
Objective:To investigate the influences of urapidil and nicardipine on rabbit sinus function,atrio-ventricular node function and hemodynamics.Methods:Thirty-two Angora's rabbits were selected and randomly divided into four groups.U1 group:urapidil 0.25 mg/kg;U2 group:urapidil 0.5 mg/kg;N1 group:nicardipine 10 μg/kg;N2 group:nicardipine 20 μg/kg.All these medicine were administrated within 30 seconds.Measurements were taken before and after the administration of urapidil or nicardipine for the following data:mean blood pressure(MAP),heart rate(HR),sino-atrial conduction time(SACT),maximal sinoatrial recovery time(SNRTmax)corrected sinus node recovery time(CSNRT),index of sinus node recovery time(SNRTI),Wenckebach A-V conduction frequency (WB),and P-R interval.Results:Significant MAP and HR changes were identified in all of the four groups before and after administration of both urapidil and nicardipine.No significant changes could be found in the rest of the parameters.Intergroup analysis showed that SACT and CSNRT of N1 and N2 groups were shorter than those of the U2 group(P<0.01);the MAP decreased(P<0.01)and the HR increased drastically(P<0.01).Conclusions:Neither urapidil(0.25 mg/kg,0.5 mg/kg)nor nicardipine(10μg/kg,20μg/kg)has any significant influence on rabbit sinus function or rabbit atrio-ventricular node function.Nicardipine could be a better choice than urapidil for parafunctional sinus node patients.  相似文献   

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