Dynamic and three-dimensional transcranial ultrasonography of an arachnoid cyst in the cerebral convexity. Technical note.
Dynamic and three-dimensional transcranial ultrasonography of an arachnoid cyst in the cerebral convexity. Technical note.
复制标题
大脑凸面蛛网膜囊肿的动态三维经颅超声检查。
DOI：
10.3171/jns.2001.94.4.0655
复制
发表时间：
2001
影响因子：
4.1
通讯作者：
U. Bogdahn
中科院分区：
文献类型：
--
作者：
F. Schlachetzki;T. Hoelscher;O. Ullrich;B. Schalke;U. Bogdahn
大脑的结构成像，如大脑计算机断层扫描（CT）和磁共振（MR）成像，是最先进的。动态经颅（dTC）超声和三维（3D）经颅彩色编码双超（TCC）超声是互补的，具有实时成像能力的无创手术，可能有助于临时处理占位性病变。一位16岁的女性表现为复发性紧张性头痛。mri显示脑凸起处一占位性蛛网膜囊肿。病人接受了颅内压升高检查。使用标准的彩色编码双超声系统连接到基于个人计算机的三维数据采集系统。经颅超声检查发现囊肿外蛛网膜随患者头部旋转（摇头手法）而自由波动。获取三维数据集，并使用多平面重新格式化重建算法，获得与初始MR图像和后续颅脑CT扫描相对应的高分辨率图像。9个月和28个月后的随访检查中，dTC和3D TC超声无明显差异。三维TCC和dTC超声检查可以补充传统的诊断程序，如MR和CT成像。该报告证明了3D TC方法的高分辨率和良好的再现性。超声是一种移动和廉价的工具，可用于改善管理和治疗策略的患者占位性脑病变在某些情况下。
Structural imaging of the brain, such as cerebral computerized tomography (CT) and magnetic resonance (MR) imaging, is state-of-the-art. Dynamic transcranial (dTC) ultrasonography and three-dimensional (3D) transcranial color-coded duplex (TCC) ultrasonography are complementary, noninvasive procedures with the capacity for real-time imaging, which may aid in the temporary management of space-occupying lesions. A 16-year-old woman presented with recurrent tension-type headaches. A space-occupying arachnoid cyst in the cerebral convexity was demonstrated on MR images. The patient underwent an examination for raised intracranial pressure. which was performed using a standard color-coded duplex ultrasonography system attached to a personal computer-based system for 3D data acquisition. Transcranial ultrasonography was used to identify the outer arachnoid membrane of the cyst, which undulated freely in response to rotation of the patient's head (headshake maneuver). Three-dimensional data sets were acquired and, using a multiplanar reformatting reconstruction algorithm, the authors obtained high-resolution images that corresponded to the initial MR image and a follow-up cranial CT scan. No detectable differences were observed on dTC or 3D TC ultrasonograms obtained at follow-up examinations performed 9 and 28 months later. Three-dimensional TCC and dTC ultrasonography may complement conventional diagnostic procedures such as MR and CT imaging. This report represents evidence of the high resolution and good reproducibility of 3D TC methods. Ultrasonography is a mobile and inexpensive tool and may be used to improve management and therapeutic strategies for patients with space-occupying brain lesions in selected cases.