SPECT评价急性心肌梗死静脉溶栓后左心室功能的改善

急性心肌梗死(ＡＭＩ)可明显影响患者的心功能,甚至引起猝死,如给予及时的溶栓治疗,患者的心功能可明显改善,病死率降低。为研究溶栓再灌注对左心室功能及左心室重塑的影响,我们应用门控心肌显像评价ＡＭＩ患者溶栓治疗后的心室容量及心功能的变化,现报道如下。资料与方法1临床资料。62例ＡＭＩ患者,年龄30～74岁,男43例,女19例,ＡＭＩ诊断依据ＷＨＯ标准。其中广泛前壁、前壁梗死31例,下后壁梗死31例。尿激酶(150万Ｕ)静脉溶栓治疗者48例,早期溶栓者(6ｈ以内)37例,晚期溶栓者(>6ｈ)11例;根据临床判断标准分成溶栓再通组和溶栓未通组,再通组…     

The role of 131Ⅰ in the apoptosis of thyrocytes of patient with Graves' disease

The changes of Fas.FasL and Bcl-2 expression in thyrocytes of patients with Graves'disease were investigated before and 2 weeks after 131Ⅰ administration. The results showed that 131Ⅰ couhl induce thyrocytes to express the apoptotic protein Fas, FasL and the anti-apoptotic protein Bet-2 in patients with Graves'disease. A statistically significant correlation was found between the dose of 131Ⅰ and the expression levels of Fas and FasL but not Bet-2 ,suggesting that early onset of hypothyroid after 131Ⅰ administration may be due to the increased expression of Fas and FasL in thyrocytes.     

99Tcm-N-NOET负荷和延迟门控心肌灌注显像对高血压患者的临床价值

Objective To investigate clinical significance of the 99Tcm-bis (N-ethoxy-N-ethyl-dithiocarbamato) nitridotechnetium(99Tcm-N-NOET) exercise and delayed myocardial perfusion imaging (MPI) in hypertensive patients. Methods Sixty patients with hypertension and 19 normal subjects were carried out 99Tcm-N-NOET exercise and delayed MPI, and analyzed the results of MPI, exercise electrocardiography (ECG), cardiac function parameters end-diastolic volume(EDV), end-systolic volume(ESV), left ventricular ejection fraction(LVEF), △ LVEF (LV EF exercis-LVEF delay) and coronary angiography(CAG). Results ① Sixty patients with hypertension, 22 cases(36.7%)of exercise ECG were abnormal, 16 cases (26.7%)were the chest tightness in exercise, 13 cases (21.7%) were blood pressure excessive reaction in exercise; control group, 2 cases (10.5%) of exercise ECG were abnormal, 1 case (5.3%, 1/19) was chest tightness in exercise,no per-son was blood pressure response in excessive. ②The positive rate of myocardial perfusion in hyper tensive group was significantly higher than the control group (31.75％ vs.5.30％, P<0.05). ③Cardial function parameters in hypertension group [exercise EDV =(79.75 ±29.10)ml, ESV =(28.82 ± 15.73)ml, LVEF =(65.78 ±1.27)%; delay EDV=(81.42±3.47)ml, ESV=(30.62±2.05)ml, LVEF=(64.20±9.70)%] and control group[exercise EDV=(79.63 ±21.65)ml, ESV=(27.37±10.71)ml, LVEF=(66.42±1.55)%; delay EDV=(82.89±4.96)ml,ESV=(31.42±3.06)ml, LVEF=(63.16 ±7.54)%] were no statistical difference(exercise EDV: t=0.161, ESV: t=0.112, LVEF: t=0.261; delay EDV: t=0.276, ESV: t=0.197, LVEF: t=0.184, P>0.05), △ LVEF<0%, 28 cases (46.7%) in hypertension group, 4 cases (21.1%) in control group, χ2=3.929, P<0.05; 11 cases (57.9%) in MPI positive group, 12 cases (29.3％) in MPI negative group, χ2=4.501, P<0.05. ④Nineteen hypertension underwent CAG, 11 cases were abnormal, 8 cases were normal. MPI results: 9 cases were ischemia, 10 cases were normal, and they were no statistical difference (χ2=0.25, P>0.05). The sensitivity,specificity and accuracy of 99Tcm-N-NOET MPI were 72.7％, 87.5％ and 78.9％. Conclusions ①99Tcm-N-NOET exercise and delayed MPI can diagnose whether hypertension patients with myocardial ischemia or not. ② △ LVEF of hypertensive patients reduced, △ LVEF is lower in hypertensive patients of MPI-positive.     

门控心肌灌注显像对Graves病~(131)I治疗前后心功能变化的研究

<正>本研究对临床确诊的格雷夫斯(Graves)病患者(初发,未经过任何抗甲状腺药物治疗)131I治疗前后分别进行了99Tcm-甲氧基异丁基异腈(MIBI)静息门控心肌灌注显像,观察其血流灌注图像,定量测定心功能参数及室壁运动等。初步探究Graves病131I治疗前后心功能变化情况,以期最终探讨用这     

ATD治疗对Graves’病~（131）I治疗后短期内血清TRAb变化的影响

目的：探讨131I治疗前行抗甲状腺药物治疗Graves’病患者对131I治疗后短期内血清TRAb变化的影响。方法：选取于我科接受131I治疗的Graves’病患者183例,分为两组：单纯131I治疗组74例与ATD组109例（131I治疗前曾接受规范ATD治疗,治疗时间〉1.5年）。采用放射免疫分析分别检测两组131I治疗前及治疗后3、6个月血清TRAb水平。结果：两组病例131I治疗后血清TRAb水平较治疗前均明显增高（P〈0.001）;131I治疗后3个月及6个月两组血清TRAb水平之间差异无统计学意义（P〉0.05）。结论：131I治疗后3个月及6个月血清TRAb水平较治疗前明显增高;且前期行抗甲状腺药物治疗对Graves’病131I治疗后短期内血清TRAb值无影响。     

~(131)I治疗Graves甲状腺功能亢进的疗效及其与甲状腺质量相关性的研究

目的对131I治疗Graves甲状腺功能亢进的疗效以及甲状腺质量与疗效的相关性进行分析。方法对2003年7月至2009年4月间使用131I治疗的所有2895例Graves甲状腺功能亢进患者进行集中随访。成功随访2045例,占70.6%。根据核素显像计算的甲状腺质量将1次131I治疗的1850例患者分为A组(≤40g)477例、B组(41～60g)758例、C组(61～80g)350例和D组(>80g)265例。疗效均以本次随访结果判定,即每位患者仅统计随访当时的一个疗效结果。采用逐步Logistic回归对131I治疗疗效的影响因素及不同甲状腺质量与疗效的关系进行统计分析。结果1次131I治疗痊愈率为47.99%(846/1763),早发甲状腺功能减退发生率31.0%(92/297),晚发甲状腺功能减退发生率42.43%(659/1553),总治愈率86.32%(1597/1850),好转率11.73%(217/1850),总有效率98.05%(1814/1850),无效(复发)率1.94%(36/1850)。甲状腺质量A～D组总治愈率分别为87.2%、86.5%、86.3%、84.2%,总有效率为97.3%、98.3%、97.4%、99.6%,早发甲状腺功能减退发生率为34.2%、24.2%、37.5%、35.3%,无效(复发)率为2.7%、1.7%、2.6%、0.4%。各质量组间差异均无统计学意义(P>0.05)。A～D组晚发甲状腺功能减退发生率分别为54.8%、42.2%、33.9%、32.5%,甲状腺质量为影响晚发甲状腺功能减退发生率的重要因素(P<0.01),在A组与B组、A组与C组、A组与D组、B组与C组、B组与D组差异均有统计学意义(P均<0.01)。结论131I治疗Graves病具有较好的疗效,甲状腺质量与131I治疗后晚发甲状腺功能减退的发生有较大关系,131I治疗前甲状腺质量越小,晚发甲状腺功能减退发生率越高。     

乳腺三维超声成像新技术发展与趋势

随着我国人口老龄化的加速、工业化、城市化以及生活方式的改变,女性乳腺癌发病率逐年上升并呈年轻化趋势,提高早期乳腺癌的检出率并进行及时有效的治疗是降低乳腺癌病死率的有效措施.乳腺癌已成为卫生部重点筛查疾病,目前乳腺癌检查手段主要有三种:乳腺X射线检查、乳腺超声检查和乳腺核磁检查,其中乳腺超声以其无辐射、安全有效、便捷经济...     

~(99m)Tc-TRODAT-1脑SPECT显像在诊断早期帕金森病中的应用

帕金森病(PD)是一种慢性、渐进性中枢神经系统变性疾病,早期对PD患者作出正确诊断对临床治疗及预后均有很大的意义。本研究通过99mTc-TRODAT-1脑单光子发射计算机体层摄影术(SPECT)显像对早期PD诊断的临床价值。1对象与方法1.1研究对象:选择临床按照CAPIT标准[1]诊断为早期PD的     

cN0喉癌前哨淋巴结的检测及意义

目的 应用核素法、染料法以及二者联合法检测cN0喉癌患者前哨淋巴结(SLN),并评价SLN对颈部淋巴结转移状况的预测价值.方法 41例cN0喉癌患者采用核素法、染料法和联合法示踪SLN.核素法为手术前于喉镜引导下在肿瘤周围注射99TCm-硫胶体(SC)进行SLN显像,手术中用γ探针探测放射性"热点";染料法为手术中注射亚甲蓝,示踪蓝染的SIN;联合法为将核素法和染料法联合应用的方法.结果 核素法、染料法和联合法对SLN的检出率分别为87.8%、70.7%和92.7%(P<0.01);核素法与联合法、染料法与联合法检出SIN数目的 差异有统计学意义(P<0.05,P<0.01),核素法与染料法检出SLN数目的 差异无统计学意义(P>0.05).病理结果示,有9例患者淋巴结转移,占22.0%.联合法检测SLN的灵敏度、准确度和阴性预测值分别为88.9%、97.4%和96.7%.结论 联合应用核素法和染料法可提高SEN检出的准确性,SLN的病理结果可以准确预测cN0喉癌患者颈部淋巴结的病理状态.