99Tcm-聚合白蛋白肺灌注显像对肺栓塞溶栓疗效的评价

目的 探讨99Tcm-聚合白蛋白(99Tcm-MAA)肺灌注显像评价肺栓塞溶栓治疗的价值.方法 对54例急性肺栓塞的患者进行回顾性分析,所有患者均由99Tcm-MAA肺灌注显像结合X线胸片检查确诊,并于溶栓治疗1周后复查肺灌注显像,部分病例于治疗3个月后再次复查.结果 54例急性肺栓塞患者溶拴治疗前99Tcm-MAA肺灌注显像共观察到347个受损肺段,X线胸片均无相应肺段或亚肺段异常.溶栓治疗后1周复查肺灌注显像,164个受损肺段(47.3%)恢复正常;3个月后再次复查,199个受损肺段(57.4%)恢复正常(χ2=10.68,P<0.05).结论 99Tcm-MAA肺灌注显像是一种无创的诊断方法,对肺栓塞溶栓治疗效果的评估有重要价值.     

99Tcm-大颗粒聚合白蛋白显像在下肢深静脉血栓中的诊断价值

目的 探讨99Tcm-大颗粒聚合白蛋白( 99Tcm-M AA)核素深静脉显像(RNV)对下肢深静脉血栓(DVT)的诊断价值.方法 临床疑似下肢DVT的患者45例,均行99Tcm-MAA双下肢RNV,并与临床最终诊断结果进行对照.结果 43例共51条患肢经临床确诊,51条血栓性患肢中,左下肢36条、右下肢15条,左下患...     

肺通气/灌注显像对肺栓塞疗效的评价

目的 探讨肺通气／灌注（V／Q）显像在观察肺栓塞（PE）溶栓和抗凝治疗效果中的价值。方法 对65例抗凝和溶栓治疗的PE患者，治疗前后分别给予^99Tc^m气体37-74MBq和^99Tc^m-聚合白蛋白（MAA）148—185MBq后行8个体位V／Q显像；并在治疗后不同时间多次重复V／Q显像。结 果44例PE患者296个受损肺段，单纯抗凝治疗1年半内，V／Q显像显示106个肺段恢复正常（35．8％），69个受损肺段改善（23．3％），121个肺段无改善（40．9％）。21例PE患者165个受损肺段，溶栓结合抗凝治疗后V／Q显像示有85个肺段恢复正常（51．5％），有29个肺段改善（17．6％），有51个肺段无改善（30．9％）。其中在PE发病7d内治疗效果最佳，单纯抗凝治疗7d与14d疗效之间比较及溶栓结合抗凝治疗7d与14d疗效之间比较，差异均有统计学意义（χ^2=8．79和56．31，P〈0．05和〈0．01）。结论 V／Q显像能较好地评价PE抗凝和溶栓治疗效果。     

^99mTc—MIBI心肌断层显像对急性心肌梗塞早期静脉溶栓的疗效观察

为观察急性心肌梗塞（ＡＭＩ）早期静脉溶栓的疗效，应用静态９９ｍＴｃ甲氧基异丁基异腈心肌断层显像，对２２例ＡＭＩ病人进行了观察。结果显示，９例溶栓再通病人由溶栓前平均９１±３３分降至３７±２２分（ｔ＝４０８５，Ｐ＜００１）。溶栓后２０个缺损节段中６个恢复正常，１０个明显改善。而这些节段为ＥＣＧ检查所示的梗塞部位。未溶栓组２次心肌显像变化不大。因此，静息心肌显像可观察ＡＭＩ病人溶栓前后心肌缺血有无改善，也可为判断冠状动脉再通提供影像学基础，具有一定的应用前景。     

肺通气/灌注显像对肺动脉血栓内膜剥脱术后残余肺动脉高压的评价

目的:探讨慢性血栓栓塞性肺动脉高压(CTEPH)患者肺动脉血栓内膜剥脱术术前全肺灌注缺损百分比(PPDs%)与术后残余肺动脉高压发生的相关性。方法:回顾性分析2016年1月至2019年1月于阜外医院行肺动脉血栓内膜剥脱术并于术前术后均行核素肺通气/灌注(V/Q)显像的37例CTEPH患者[男21例、女16例,年龄(50...     

^99mTc—MIBI心肌灌注显像的临床应用

＾９９ｍＴｃ－ＭＩＢＩ在冠心病诊断中的价值与＾２０１Ｔｌ相似，且可用于心功能和心肌血流灌注的同时评价及灌注／代谢显像对存活心肌的估测。     

^99mTc标记药物SPECT脑灌注显像的操作指南

介绍了＾９９ｍＴｃ标记的放射性药物ＳＰＥＣＴ脑灌注显像的常见适应证，脑显像剂，图像采集和处理，介入试验的方法和副反应以及如何图像进行解释，并表提供需进一步探讨的问题。     

慢性血栓栓塞性肺动脉高压患者SPECT/CT肺灌注体积及视觉评分与血流动力学参数的相关性研究

目的:探讨慢性血栓栓塞性肺动脉高压(CTEPH)患者肺灌注SPECT/CT显像肺灌注体积及视觉评分与右心导管血流动力学参数的相关性。方法:回顾性分析2015年3月至2019年7月间广州医科大学附属第一医院51例连续CTEPH患者的资料,其中男17例,女34例,年龄(59±12)岁。所有患者均行肺灌注SPECT/CT显像...     

^99Tc^m-二亚乙基三胺五乙酸与^99Tc^m-奥曲肽眼眶显像在甲状腺相关性眼病中的对比研究

目的通过对比^99Tc^m-二亚乙基三胺五乙酸（^99Tc^m-DTPA）与^99Tc^m-奥曲肽（^99Tc^m-OCT）眼眶显像,比较两种显像方法在评估甲状腺相关眼病（TAO）患者眼部炎性反应活动度中的临床价值。方法26例TAO患者依据临床活动度评分（CAS）标准分为炎性反应活动组16例、非炎性活动组10例,另有14名正常志愿者作为对照组。静脉注射^99Tc^m-DTPA 740 MBq,0．5h后行眼眶平面及体层显像,隔日同一患者静脉注射^99Tc^m-OCT740MBq,1-2h后行眼眶平面及体层显像。获取各组两种眼眶显像剂的摄取率。对两种显像方法获得的半定量指标UROCT和URDTPA进行配对t检验并分别与CAS评分进行Spearman相关性分析。结果两种显像剂的眼眶摄取率未见明显差异（t=0．075,P〉0．05）。两种显像剂的眼眶摄取率（UROCT、URDTPA）与患者CAS评分之间具有很好的相关性（^99Tc^m-DTPA：r=0．835,P〈0．001;^99Tc^m-OCT：r=0．912,P〈0．001）。结论^99Tc^m-DTPA与^99Tc^m-OCT的眼眶显像有较好的一致性,证明^99Tc^m-DTPA眼眶显像是一种可行的、并可能成为一种很有发展前景的评价TAO炎性反应活动度的新方法。     

肺通气/灌注显像诊断不典型亚肺段肺栓塞

目的评价核索肺通气／灌注（V／Q）显像对不典型亚肺段肺栓塞（PE）的诊断价值。方法患者141例，男58例，女83例，年龄（65．67±11．29）岁，其中下肢静脉病变史者14例，糖尿病、高脂血症史者45例，63例近期内行有创性诊断和治疗，另19例均无上述病史或诊疗史。所有患者行常规盼^99Tc^m-MAA和^99Tc^m气体显像后进行1—24个月的抗凝治疗，于治疗后再行肺灌注显像。将抗凝治疗前后肺灌注显像进行对比分析，根据肺内放射性分布的变化判断治疗效果，再结合临床资料及其他影像检查综合判断不典型PE的诊断。结果141例患者肺灌注显像均显示某个肺野内不呈肺段或亚肺段分布的片状或小斑片状放射性分布稀疏区。肺通气显像示肺野内放射性分布基本均匀，未见放射性分布稀疏区。治疗后118例肺灌注显像显示双肺内放射性分布不同程度的增多或均匀。按肺野内放射性分布改善情况标准评价：抗凝治疗后恢复正常35例，显效49例，有效34例。总有效率为83．69％（118／141）。另23例肺内放射性分布无明显变化，视为无效。结论V／Q显像是诊断不典型亚肺段PE的首选方法。     

经导管祛栓术治疗急性肺动脉栓塞

目的：探讨经导管栓子祛除术治疗急性肺动脉栓塞的临床疗效。方法：对24例急性肺动脉栓塞的病人，经肺动脉造影明确诊断，通过旋转猪尾导管碎栓、抽吸导管抽吸和局部溶栓来开通肺动脉。观察临床症状、动脉血氧分压（PaO2)、肺动脉平均压（PAPm）和肺动脉开通情况。结果：术后症状即刻缓解者23例，完全开通者20例，与术前相比PaO2明显升高（P＜0．05），PAPm明显降低（P＜0．05），并发脑出血1例，死亡2例，22例病人存活。结论：经导管栓子祛除术治疗急性肺动脉栓塞是安全有效的方法。     

99Tcm-二亚乙基三胺五乙酸与99Tcm-奥曲肽眼眶显像在甲状腺相关性眼病中的对比研究

Objective Through a comparative study of 99Tcm-diethylenetriaminepentaacetic acid (99Tcm-DTPA) and 99Tcm-octreotide (99Tcm-OCT) SPECT orbital scan, evaluated the clinic significance of two imaging of estimation activity in thyroid associated ophthalmopathy (TAO). Methods Aeording to the elinnic activity score (CAS), 26 TAO patients were divided into two groups: active group (CAS ≥3) and inactive group (CAS<3), 14 volunteers (control group) participates this study. Orbit scan were completed after intravenously injection with 99Tcm-DTPA 740 MBq and 99Tcm-OCT (every other day). Obtaining the uptake ratio (UR) of two kinds of orbit scans. The statistical analyses included Paired-samples t test analysis of variance and Spearman regression analysis. Results There is no statistically significance between the two methods in UR (t=0.075, P>0.05). There is a statistically significant correlation was found between CAS and the uptake ratios(99Tcm-DTPA: r=0.835, P<0.001; 99Tcm-OCT: r=0.912, P<0.001). Conclusions There is a good uniformity between 99Tcm-DTPA and 99Tcm-OCT orbital scan; 99Tcm-DTPA is a feasible and maybe a new promising estimation method of activity in the patients with TAO.     

99Tcm-二亚乙基三胺五乙酸与99Tcm-奥曲肽眼眶显像在甲状腺相关性眼病中的对比研究

Objective Through a comparative study of 99Tcm-diethylenetriaminepentaacetic acid (99Tcm-DTPA) and 99Tcm-octreotide (99Tcm-OCT) SPECT orbital scan, evaluated the clinic significance of two imaging of estimation activity in thyroid associated ophthalmopathy (TAO). Methods Aeording to the elinnic activity score (CAS), 26 TAO patients were divided into two groups: active group (CAS ≥3) and inactive group (CAS<3), 14 volunteers (control group) participates this study. Orbit scan were completed after intravenously injection with 99Tcm-DTPA 740 MBq and 99Tcm-OCT (every other day). Obtaining the uptake ratio (UR) of two kinds of orbit scans. The statistical analyses included Paired-samples t test analysis of variance and Spearman regression analysis. Results There is no statistically significance between the two methods in UR (t=0.075, P>0.05). There is a statistically significant correlation was found between CAS and the uptake ratios(99Tcm-DTPA: r=0.835, P<0.001; 99Tcm-OCT: r=0.912, P<0.001). Conclusions There is a good uniformity between 99Tcm-DTPA and 99Tcm-OCT orbital scan; 99Tcm-DTPA is a feasible and maybe a new promising estimation method of activity in the patients with TAO.     

99Tcm-二亚乙基三胺五乙酸与99Tcm-奥曲肽眼眶显像在甲状腺相关性眼病中的对比研究

Objective Through a comparative study of 99Tcm-diethylenetriaminepentaacetic acid (99Tcm-DTPA) and 99Tcm-octreotide (99Tcm-OCT) SPECT orbital scan, evaluated the clinic significance of two imaging of estimation activity in thyroid associated ophthalmopathy (TAO). Methods Aeording to the elinnic activity score (CAS), 26 TAO patients were divided into two groups: active group (CAS ≥3) and inactive group (CAS<3), 14 volunteers (control group) participates this study. Orbit scan were completed after intravenously injection with 99Tcm-DTPA 740 MBq and 99Tcm-OCT (every other day). Obtaining the uptake ratio (UR) of two kinds of orbit scans. The statistical analyses included Paired-samples t test analysis of variance and Spearman regression analysis. Results There is no statistically significance between the two methods in UR (t=0.075, P>0.05). There is a statistically significant correlation was found between CAS and the uptake ratios(99Tcm-DTPA: r=0.835, P<0.001; 99Tcm-OCT: r=0.912, P<0.001). Conclusions There is a good uniformity between 99Tcm-DTPA and 99Tcm-OCT orbital scan; 99Tcm-DTPA is a feasible and maybe a new promising estimation method of activity in the patients with TAO.     

99Tcm-二亚乙基三胺五乙酸与99Tcm-奥曲肽眼眶显像在甲状腺相关性眼病中的对比研究

Objective Through a comparative study of 99Tcm-diethylenetriaminepentaacetic acid (99Tcm-DTPA) and 99Tcm-octreotide (99Tcm-OCT) SPECT orbital scan, evaluated the clinic significance of two imaging of estimation activity in thyroid associated ophthalmopathy (TAO). Methods Aeording to the elinnic activity score (CAS), 26 TAO patients were divided into two groups: active group (CAS ≥3) and inactive group (CAS<3), 14 volunteers (control group) participates this study. Orbit scan were completed after intravenously injection with 99Tcm-DTPA 740 MBq and 99Tcm-OCT (every other day). Obtaining the uptake ratio (UR) of two kinds of orbit scans. The statistical analyses included Paired-samples t test analysis of variance and Spearman regression analysis. Results There is no statistically significance between the two methods in UR (t=0.075, P>0.05). There is a statistically significant correlation was found between CAS and the uptake ratios(99Tcm-DTPA: r=0.835, P<0.001; 99Tcm-OCT: r=0.912, P<0.001). Conclusions There is a good uniformity between 99Tcm-DTPA and 99Tcm-OCT orbital scan; 99Tcm-DTPA is a feasible and maybe a new promising estimation method of activity in the patients with TAO.