Eggers J, Pade O, Rogge A, Schreiber S J, Valdueza J M
Department of Neurology, Asklepios Hospital North, Tangstedter Landstrasse 400, Hamburg, Germany.
AJNR Am J Neuroradiol. 2009 Sep;30(8):1589-93. doi: 10.3174/ajnr.A1602. Epub 2009 Jun 4.
Visualization of the intracranial internal carotid artery (ICA) with transcranial color-coded sonography (TCCS) by using the transtemporal coronal plane has been described previously. Because this approach is limited to the vertical running ICA segments, we investigated the feasibility of using TCCS to visualize all intracranial ICA segments by adding the transtemporal axial approach to the coronal plane.
Subjects with excellent transtemporal acoustic windows were examined by TCCS by using standardized axial and coronal planes. Identification rate, flow velocities, pulsatility and resistance indices, and length (as visible in color-coded power mode) were determined.
A total of 120 intracranial ICAs from 60 subjects were investigated. By switching between the axial and coronal insonation planes, all intracranial segments of the ICA could be investigated in 100% of subjects-with the exception of the horizontal part of the petrosal ICA, which was identified in 96.7% of subjects.
TCCS becomes a reliable tool in investigating all parts of the intracranial ICA by adding the transtemporal axial approach to the coronal plane.
此前已有经颞部冠状面利用经颅彩色编码超声(TCCS)对颅内颈内动脉(ICA)进行可视化的相关描述。由于这种方法仅限于垂直走行的ICA节段,我们通过在冠状面基础上增加经颞部轴向方法,研究了使用TCCS对所有颅内ICA节段进行可视化的可行性。
通过标准化的轴向和冠状面,利用TCCS对具有良好颞部声学窗口的受试者进行检查。测定识别率、血流速度、搏动性和阻力指数以及长度(在彩色编码功率模式下可见)。
共对60名受试者的120条颅内ICA进行了研究。通过在轴向和冠状面超声检查平面之间切换,100%的受试者能够对ICA的所有颅内节段进行检查,但岩骨段ICA的水平部分除外,该部分在96.7%的受试者中能够被识别。
通过在冠状面基础上增加经颞部轴向方法,TCCS成为一种可靠的工具,可用于研究颅内ICA的所有部分。