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骨质疏松性性椎体压缩骨折SPECT-CT及MRI的对比分析
骨质疏松性性椎体压缩骨折 急性期骨折 SPECT-CT MRI
2020/12/21
分析单光子发射计算机断层摄影术联合同机CT扫描图像融合技术(SPECT-CT)及磁共振成像(MRI)对骨质疏松性椎体压缩骨折(OVCF)诊断价值。方法:回顾性分析2016年3月至2018年4月我院82例OVCF患者临床资料。其中67例属急性期骨折(病程≤3周),15例为亚急性期骨折(病程4〜12周)。记录急性期骨折及亚急性期骨折患者SPECT-CT和MRI责任椎体检出情况,且82例患...
探讨99Tcm-MDP SPECT/CT诊断宫颈癌放疗后骨盆不全骨折(PIF)的价值。方法 回顾性分析37例宫颈癌放疗后疑似PIF患者的全身显像(WBS)和骨盆SPECT/CT断层融合显像资料。以影像学资料、临床资料及随访(>12个月)结果作为最终诊断PIF的标准,比较WBS、SPECT/CT对PIF的诊断效能。
SPECT设备系统性能测试及分析
SPECT NEMA标准 空间分辨力 系统平面灵敏度
2016/1/21
通过对SPECT设备进行系统性能测试,分析影响系统性能指标的因素和系统性能指标之间的关系。方法 参考美国电气制造商协会(NEMA)标准以及厂家规范,测量了12个省市的31台SPECT设备的系统空间分辨力、系统平面灵敏度、断层空间分辨力等性能指标,这些指标全部是第一次检测时的测量结果。结果 系统空间分辨力:(7.90±0.62)mm,最大值9.46 mm,最小值7.04 mm;系统平面灵敏度:(78...
探讨发作间期/发作期SPECT局部脑血流灌注显像(regional cerebral blood flow,rCBF)在癫痫术前定位诊断中的价值。 方法 回顾性分析第三军医大学新桥医院神经外科行外科手术治疗的115例癫痫患者,术前分别行发作间期/发作期SPECT显像、常规脑电图(electroencephalogram,EEG)、视频脑电图(vedio-EEG,VEEG)、C...
Correlation of semiquantitative Tc 99m-Pyrophosphate myocardial SPECT with the quantities of LVEF in determining the extent and intensity of acute MI
Correlation semiquantitative 99m-Pyrophosphate quantities of LVEF
2010/1/5
This study was performed to evaluate the Tc-pyp SPECT role in determination of AMI severity and extension. Pyp SPECT imaging was done for 54 patients with AMI, who met the WHO criteria. SPECT findings...
通过对正常人和逼尿肌过度活动症患者进行99Tcm-HMPAO SPECT脑血流灌注显像,NEUROSTAT软件包分析SPECT影像,探讨膀胱贮尿的大脑控制区及其控制机理。15例健康自愿者(Ⅰ组)和25例下尿道尿储存功能障碍患者接受了SPECT扫描。其中19例患者为逼尿肌过度活动症(Ⅱ组),6例患者逼尿肌功能正常(Ⅲ组)。所有受检者均在排空膀胱的静息状态和控尿状态接受了SPECT扫描。控尿状态的图像...
Usefulness of Dipyridamole Myocardial Perfusion SPECT in Patients with Left Bundle Branch Block
Myocardial perfusion imaging SPECT Dipyridamole Left bundle branch block Technetium-99m Sestamibi
2010/4/2
Background: Diagnosis of coronary artery disease (CAD) in patients with left bundle branch block (LBBB) is considered as a challenge in cardiology due to the low accuracy of noninvasive methods such a...
PET vs. SPECT: in the Context of Ongoing Developments
PET SPECT Sensitivity Spatial resolution Temporal resolution Dynamic imaging
2010/2/8
This paper intends to compare the abilities of the two major imaging modalities in nuclear medicine imaging: Positron Emission Tomography (PET) and Single Photon Emission Computed Tomography (SPECT). ...