脑脓肿螺旋CT诊断的临床价值

The value of helix CT in diagnosis of encephalopyosis.

目的分析脑脓肿在螺旋CT的表现特点,探讨其CT的诊断证据,并为临床治疗提供基础数据。方法对有典型临床症状或细菌学检查证实的17例脑脓肿患者行头颅螺旋CT平扫和增强扫描,层厚、层距5mm,并分析表现特点。结果17例脑脓肿患者中,脑脓肿分布于大脑半球11例,小脑半球5例,基底节区1例。显示单腔脓肿12例,多腔脓肿2例,多发脓肿3例;平扫17例中12例脓肿壁显示完整、2例显示不完整的等密度环,增强扫描脓肿壁均有不同程度的强化。结论螺旋CT扫描是早期诊断脑脓肿的首选方法,能具体显示脑脓肿的位置、大小、数目、形态、脓肿壁厚度、脑室情况,对治疗方案选择和预后评价具有重要意义。

Objective To analyze the relationship between the Helix CT Encephalopyosis and clinical manifestations and differential diagnosis. Methods Horizontal scan or intensive scan with 5mm layer thickness to 17 Encephalopyosis patients who had been diagnosed according to the typical clinical symptoms and bacteriology check-up was performed. Results Among 17 Encephalopyosis patients, there are 11 encephalopyosis that distribute their hemishere, 5 encephalopyosis distribute their cerebellar hemisphere and one encephalopyosis distribute basal area; 12 single cavity encephalopyosis, 2 multicavity encephalopyosis and 3 multiple encephalopyosis; through the horizontal scan, the abscess wall of 12 patients is integrity, but 2 cases show the imperfect equidensity ring and after intensive scan, all abscess walls have had the consolidate to different extents. Conclusion (1)The position, size, number, shape, thickness of abscess wall, ventricle and the pressed objective sign of brain stem relate closely to the clinical symptom, the choice of Rx and prognosis. (2)Helix CT scan is the first choice for early diagnosis to brain abscess. (3)It is very important for dynamic observation of the focus and prognosis.