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目的:探讨99mTC-ECT脑血流灌注单光子发射断层扫描(SPECT)脑显像对脑供血不足病人的诊断及早期治疗的重要性。方法:对2000年以来80例脑供血不足病人进行99mTC-ECT脑血流灌注单光子发射断层扫描(SPECT)脑显像研究,观察局部脑血流量(rCBF)的变化反映全脑缺血的区域、范围和程度。结果:80例患者rcBF减低者70例,占受检者80.7%,rCBF减低区与临床定位不符者16例,相符者54例,其中10例还另有一个远隔部位或对侧半球的rCBF减低区,即共26例检到与此次发病定位不一致的缺血病灶。结论:SPECT脑显像所提示的rCBF减低区,可预防TIA的发生及脑梗塞治疗,SPECT脑显像能发现潜在隐匿的未引起临床症状的缺血区。
Objective: To investigate the significance of 99mTC-ECT cerebral perfusion single photon emission computed tomography (SPECT) in the diagnosis and early treatment of patients with cerebral insufficiency. Methods: Eighty patients with cerebral hypoperfusion after 2000 were studied by 99mTC-ECT single-photon emission computed tomography (SPECT) brain imaging. The changes of regional cerebral blood flow (rCBF) were observed in the areas of global cerebral ischemia , Scope and extent. Results: Among the 80 patients, 70 patients had decreased rcBF, accounting for 80.7% of the patients, 16 patients had inconsistent rCBF reduction and clinical localization, and 54 patients were consistent. Among them, 10 patients had another distant or contralateral hemisphere rCBF Reduce the area, that is, a total of 26 cases detected inconsistent with the incidence of ischemic lesions. Conclusion: The decrease of rCBF suggested by SPECT brain imaging can prevent the occurrence of TIA and the treatment of cerebral infarction. SPECT brain imaging can detect potentially occluded ischemic area without clinical symptoms.