头部CT不仅能从血肿形态上估计其形成时间,而且能从密度上推测血肿的期龄。一般从新月形血肿演变到双凸形血肿,约需3-8周左右,血肿的期龄平均在3.7周时呈高密度,6.3周时呈低密度,至8.2周时呈等密度。此外,MRI更具优势,对CT呈等密度时的血肿或积液均有良好的图像鉴别。 本病需与慢性硬膜下积液、大脑半球占位病...
一般从新月形血肿演变到双凸形血肿,约需3-8周左右,血肿的期龄平均在3.7周时呈高密度,6.3周时呈低密度,至8.2周时呈等密度。此外,MRI更具优势,对CT呈等密度时的血肿或积液均有良好的图像鉴别。 本病需与慢性硬膜下积液、大脑半球占位病变、正常颅内压脑积水和脑萎缩相鉴别。 (4)治疗与预后 手术治疗:1.微创...
1) 钻孔引流术 钻孔引流术式操作简单、疗效显著、技术成熟是大多数神经外科医生首选术式,一般分为单孔和双孔两种方式,术前根据CT片确定钻头深度和位置,术后保留引流管,用尿激酶+生理盐水冲洗,约一周后复查CT无异常可拔管。 但该术式不适用于出现分割、有明显薄膜的血肿,常见的并发症包括颅内积气、血肿复发、脑挫裂...
Chronic subdural hematomaDelayed contrast-enhanced CTIodine concentrationChronic subdural hematomaTime-density curveSurgery was undertaken on 32 chronic subdural hematomas in a series of 28 patients who had preoperatively undergone delayed contrast-enhanced computed tomography (DCECT). Timedensity curves on ...
Chronic subdural hematomas. Neuroradiology 29, 36–39 (1987). https://doi.org/10.1007/BF00341034 Download citation Received06 January 1986 Issue DateJanuary 1987 DOIhttps://doi.org/10.1007/BF00341034 Key words Chronic subdural hematoma Delayed contrast-enhanced CT Iodine concentration Chronic subdural...
Preoperative CT examination of the brain is a necessary diagnostic procedure aiming to establish the diagnosis of chronic subdural hematoma (HSH). The aim of this study was to evaluate the significance of preoperative CT findings in evaluation of the risk of relapse of chronic subdural hematomas. ...
The haemoglobin in haematomas is the most important factor determining the attenuation values in the CT scan. Protein, iron or calcium ions have only minimal concentration in haematomas and are neglegible for attenuation values of haematomas in the CT scan. The lightest sanguineous solution, that ...
1) Chronic subdural hematoma 慢性硬脑膜下血肿1. The experience of Diagnosis and Treatment about Chronic Subdural Hematoma; 方法回顾性分析5年内诊治的103例慢性硬脑膜下血肿,调查其一般资料、临床表现、血肿部位和血肿量以及CT检查,探讨了钻孔冲洗引流及开颅清除血肿的疗效。
Schematic Illustration of the Trial Protocol View LargeDownload CSDH indicates chronic subdural hematoma; CT, computed tomography. Figure 2. Changes in Hematoma Volume View LargeDownload Full analysis set (FAS) (A) and per protocol set (PPS) (B) methods were used to calculate the reduction in ...
Chronic subdural hematomas show not only during the preoperative examination characteristic computertomographic changes of the subdural space and cortex, signs of compression of the basal cisterns and ventricular system, rabbit-ear-phenomenon etc. (1, 2, 3). In the postoperative period repeated CT-...