论文部分内容阅读
目的探讨脑出血低场强MRI表现特点,提高MRI对本病的诊断符合率。方法总结2008年7月—2010年2月期间脑出血31例患者的临床资料,分析其临床表现及低场强MRI表现特点。结果本组31例脑出血患者中,出血部位于基底节区25例,占80.6%,其中左侧基底节11例(35.5%),右侧基底节14例(45.1%);左额叶2例,占6.5%;右丘脑3例,占9.7%;右颞叶1例,占3.2%。病灶最小0.7cm×1.0cm,最大7.5cm×7.0cm。MRI表现为TlWI等信号23例,表现为稍高信号8例;T2WI均表现为高信号,病灶周围伴环行水肿带11例,厚约1~3mm,表现为T1WI环行稍低信号,T2WI高信号,边界模糊;侧脑室内出血亦表现为TlWI等或稍高信号,T2WI高信号。结论 MRI可对超早期脑出血做出快速、准确定位和定性诊断,在脑出血后血肿周围水肿机制的研究及脑梗死溶栓治疗病例的筛选、出血性并发症的预防及预后判断等方面均有实用价值。
Objective To investigate the MRI features of low-field-intensity cerebral hemorrhage and to improve the diagnostic accuracy of MRI for this disease. Methods The clinical data of 31 patients with cerebral hemorrhage from July 2008 to February 2010 were summarized and their clinical manifestations and MRI features of low field strength were analyzed. Results Among the 31 patients with cerebral hemorrhage, hemorrhage was located in the basal ganglia in 25 cases (80.6%), including 11 (35.5%) in the left basal ganglia and 14 (45.1%) in the right basal ganglia; Cases, accounting for 6.5%; right thalamus in 3 cases, accounting for 9.7%; right temporal lobe in 1 case, accounting for 3.2%. Lesion smallest 0.7cm × 1.0cm, the largest 7.5cm × 7.0cm. MRI showed TlWI and other signals in 23 cases, showing a slightly higher signal in 8 cases; T2WI showed high signal around the lesion with circumcital edema in 11 cases, the thickness of about 1 ~ 3mm, showed T1WI ring slightly lower signal, T2WI high signal , Border blurred; lateral ventricle hemorrhage also showed TlWI or slightly higher signal, T2WI high signal. Conclusion MRI can make rapid and accurate positioning and qualitative diagnosis of early-stage cerebral hemorrhage. The study on the mechanism of edema around the hematoma after cerebral hemorrhage and the screening of thrombolytic therapy for cerebral infarction, the prevention and prognosis of hemorrhagic complications Has practical value.