伴区域淋巴结或合并远处转移的放射性碘难治性分化型甲状腺癌125I粒子植入治疗的疗效及安全性

目的:评估125I粒子植入治疗放射性碘难治性分化型甲状腺癌（RAIR-DTC）伴区域淋巴结或远处转移瘤的有效性及安全性，并分析患者肿瘤大小、肿瘤相关标志物Tg值的变化，以及短期疗效与肿瘤体积大小、增强扫描强化程度的相关性。方法:回顾性分析2015年5月至2018年7月42例经由病理与影像证实的RAIR-DTC伴淋巴结或合并远处转移的住院患者，均行CT引导下125I粒子植入治疗。患者术前行CT增强扫描及计算强化程度，并利用计算机三维治疗计划系统（TPS）测量肿瘤体积。术后2、6、12个月参照实体瘤治疗疗效评价标准(RECIST 1.1 标准)联合骨转移瘤MDA疗效评价标准评价治疗效果。结果:42例患者手术顺利，术后2、6、12个月的局部缓解率分别为97.62%（41/42）、88.10%(37/42)、85.71%(36/42)。其中3例声嘶、4例咳嗽的患者症状均较前明显缓解，8例患者术后NRS疼痛评分(2.00±1.07)较术前(4.88±0.83)明显下降（P＜0.001）。治疗后2、6、12个月复查病灶体积分别为（4.44±1.57)cm3、(4.20±1.70)cm3、(4.23±1.77)cm3，均较术前基线水平(6.87±1.67)cm3明显减小(t值:9.466、9.923、7.556，均P＜0.05)。治疗后2、6、12个月复查Tg值水平分别为15.95(5.45,73.93) μg/L、8.90(2.20,39.21)μg/L、6.00(1.93,14.18)μg/L，均较术前基线水平53.50(20.94,222.92)μg/L明显降低（Z值:-5.258、-5.009、-4.987,均P＜0.001）。肿瘤体积、CT强化程度是术后疗效的影响因素。结论:125I粒子组织间植入治疗RAIR-DTC伴区域淋巴结转移或合并远处转移的病灶局部控制效果较好、安全性高，具有较高的临床应用价值,且肿瘤体积小、强化程度高时疗效明显。     

比较不同年龄和不同采集时相对肺部肿瘤PET/CT四维显像的影响

目的:探讨正电子发射计算机断层成像术电子计算机X射线断层扫描技术(PET/CT)四维显像时选择不同年龄和不同采集时相对肺部肿瘤的影响。方法:对80例肺部结节患者行PET/CT四维显像,根据不同年龄和不同采集时相分为6时相组和10时相组,观察两组显像成功率。结果:较年长的患者适合用采集时相少的四维采集方法,而较年轻的患者适合用采集时相多的方法。结论:PET/CT四维显像时需根据患者年龄选择采集时相。     

COPD患者肺功能与甲状腺激素水平的相关性分析

目的 评估COPD患者甲状腺功能,并分析肺功能、动脉血气及甲状腺激素之间的关系.方法 70例COPD患者(分4级)及50例健康志愿者(对照组),分别测定其有关通气功能指标(FEV1、FVC、FEV1/FVC)和血气分析参数(PaCO2、PaO2、SO2)以及血清中甲状腺素总三碘甲状腺原氨酸(TT3) 、总甲状腺素(TT4) 、游离三碘甲状腺原氨酸 (FT3) 、游离甲状腺素(FT4) 和促甲状腺生成素(TSH),并对数据进行研究.结果 COPD组TT3、FT3的平均值低于对照组,并且与病情严重程度正相关,差异具有统计学意义(P<0.05);TT4、FT4和TSH平均值降低无统计学差异.随着COPD严重程度的增加,TT3、FT3平均值显著降低;COPD患者组中,TT3、FT3与肺功能指标、PaO2及SO2呈显著正相关,与PaCO2呈显著负相关.结论 COPD患者甲状腺激素水平与 COPD的严重性、进展和预后有一定关系.     

Hawkeye VG型SPECT/CT融合显像在下消化道出血定位中的临床应用

目的 利用99Tcm体内标记RBC法,探讨Hawkeye VG型SPECT/CT融合显像在下消化道出血定位诊断中的临床应用价值.方法 回顾性分析56例确诊下消化道出血的患者资料,其中男42例,女14例,年龄10～ 76岁.采用体内标记法标记RBC,剖腹探查术前静脉注射99TcmO4-洗脱液370 MBq后即刻行下腹部平面显像,随后在同一床位行SPECT和CT扫描,并进行图像融合处理.分析图像,进行下消化道出血的定位诊断.x2检验分析平面显像与SPECT/CT融合显像的诊断灵敏度与定位准确性间的差异.结果 56例患者中,平面显像和融合显像示下腹部有放射性异常浓聚灶者分别为50例和52例.2种显像方法各有42例和52例完成出血定位诊断,其中平面显像有31例,融合显像有48例定位与手术探查出血点一致.2种显像方法诊断灵敏度分别为89.3％(50/56)和92.9％ (52/56),差异无统计学意义(x2=0.11,P＞0.05);定位准确性分别为73.8％ (31/42)和92.3％ (48/52),两者差异有统计学意义(x2=4.63,P＜0.05).结论 Hawkeye VG型SPECT/CT融合显像是一种灵敏、简便、准确的下消化道出血定位检查方法.     

Hawkeye SPECT仪融合图像用于脑脊液鼻漏诊断和定位

Objective The purpose of this study was to evaluate the clinical value of the 99Tcm-DTPA cerebrospinal fluid (CSF) Hawkeye SPECT fusion imaging for diagnosing and localizing CSF rhinorrhea (CSFR). Methods Thirty-three patients with suspected CSFR were included in this study. All cases un-derwent planar and SPECT and CT imaging at 120 and 180 min, respectively, after 99Tcm-DTPA injection via lumbar puncture before surgery treatment. The location and path of CSF leakage were diagnosed on pla-nar and SPECT fusion imaging. SAS 6.12 software was used to analyze both sets of imaging data, and the χ2 test was used to compare the results from planar imaging with those of SPECT fusion imaging. Results In 33 patients with CSFR, 31 abnormally concentrated radionuclide activity and location of leakage were foun-ded on SPECT fusion imaging, whereas 30 of such abnormalities were detected by planar imaging. All CSFR cases were confirmed by surgery afterwards. The sensitivity and accuracy for diagnosing and localizing CSFR were 93.9% (31/33), 90.9% (30/33) in SPECT fusion imaging and 93.5% (29/31), 78.3% (18/23) in planar imaging. Conclusion 99Tcm-DTPA CSF Hawkeye SPECT fusion imaging is an efficient, simple and accurate method for diagnosing and localizing CSF leakage.     

Hawkeye SPECT仪融合图像用于脑脊液鼻漏诊断和定位

Objective The purpose of this study was to evaluate the clinical value of the 99Tcm-DTPA cerebrospinal fluid (CSF) Hawkeye SPECT fusion imaging for diagnosing and localizing CSF rhinorrhea (CSFR). Methods Thirty-three patients with suspected CSFR were included in this study. All cases un-derwent planar and SPECT and CT imaging at 120 and 180 min, respectively, after 99Tcm-DTPA injection via lumbar puncture before surgery treatment. The location and path of CSF leakage were diagnosed on pla-nar and SPECT fusion imaging. SAS 6.12 software was used to analyze both sets of imaging data, and the χ2 test was used to compare the results from planar imaging with those of SPECT fusion imaging. Results In 33 patients with CSFR, 31 abnormally concentrated radionuclide activity and location of leakage were foun-ded on SPECT fusion imaging, whereas 30 of such abnormalities were detected by planar imaging. All CSFR cases were confirmed by surgery afterwards. The sensitivity and accuracy for diagnosing and localizing CSFR were 93.9% (31/33), 90.9% (30/33) in SPECT fusion imaging and 93.5% (29/31), 78.3% (18/23) in planar imaging. Conclusion 99Tcm-DTPA CSF Hawkeye SPECT fusion imaging is an efficient, simple and accurate method for diagnosing and localizing CSF leakage.     

Hawkeye SPECT仪融合图像用于脑脊液鼻漏诊断和定位

Objective The purpose of this study was to evaluate the clinical value of the 99Tcm-DTPA cerebrospinal fluid (CSF) Hawkeye SPECT fusion imaging for diagnosing and localizing CSF rhinorrhea (CSFR). Methods Thirty-three patients with suspected CSFR were included in this study. All cases un-derwent planar and SPECT and CT imaging at 120 and 180 min, respectively, after 99Tcm-DTPA injection via lumbar puncture before surgery treatment. The location and path of CSF leakage were diagnosed on pla-nar and SPECT fusion imaging. SAS 6.12 software was used to analyze both sets of imaging data, and the χ2 test was used to compare the results from planar imaging with those of SPECT fusion imaging. Results In 33 patients with CSFR, 31 abnormally concentrated radionuclide activity and location of leakage were foun-ded on SPECT fusion imaging, whereas 30 of such abnormalities were detected by planar imaging. All CSFR cases were confirmed by surgery afterwards. The sensitivity and accuracy for diagnosing and localizing CSFR were 93.9% (31/33), 90.9% (30/33) in SPECT fusion imaging and 93.5% (29/31), 78.3% (18/23) in planar imaging. Conclusion 99Tcm-DTPA CSF Hawkeye SPECT fusion imaging is an efficient, simple and accurate method for diagnosing and localizing CSF leakage.     

PET脑显像和脑脊液检测对临床痴呆诊断再评估的意义

目的对首次临床诊断的痴呆患者进行再评估,寻找更适合的诊断方法与标准。方法择2011年6月 ~2012年6月共22例轻度神经退行性非血管性痴呆患者进行脑匹兹堡复合物B（PIB）-PET、选脱氧葡萄糖（FDG）-PET、脑脊液检测和神经心理学测试,每隔 1~2年进行一次简易智力状态量表（MMSE）评分,随访至 2017年4月。结果 22例受试者中 7例的痴呆诊断发生了改变。其中有 4例阿尔茨海默病转变为路易体痴呆; 2例阿尔茨海默病和 1例行为变异型额颞叶痴呆转变为不定型痴呆。诊断有变化组和无变化组的教育程度、 Aβ42浓度、理解能力测试、情景记忆测试及顶叶脑葡萄糖代谢减低程度差异有统计学意义（P＜ 0.05）。结论 PET脑显像和脑脊液检测对临床痴呆诊断再评估具有指导意义。     

PET/CT呼吸门控采集时不同时相对图像融合的影响

目的应用正电子发射计算机断层成像术/电子计算机X射线断层扫描技术（Positron Emission computed Tomography/electronic Computer X-ray Tomography,PET/CT）探讨呼吸门控采集时采用不同时相对PET图像与CT图像融合的影响。方法将行PET/CT显像发现肺部有结节的14例患者分为两组,应用呼吸门控技术对肺部结节进行不同时相的PET/CT显像,观察PET图像与CT图像的融合合格率。结果时相多的一组,可以得到更好的融合图像,优于时相少的一组。结论 PET/CT采集中,应用呼吸门控技术适当增加采集时相有意义,可以使PET图像与CT图像更好地进行融合,具有较高的临床应用价值,可在临床应用中逐步普及。     

放射性碘125粒子植入联合锶核素89及云克治疗碘131难治性甲状腺癌骨转移疗效分析

目的 探讨应用放射性碘125(125I)粒子植入联合锶核素89(89Srcl2)及云克治疗碘131(131I)难治性甲状腺癌(RAIR-DTC)骨转移的临床疗效.方法 选取北部战区总医院自2016年1月至2018年10月收治的57例131I RAIR-DTC骨转移患者为研究对象.所有患者均初始给予89 Srcl2内照射...