Nauta H J, Guinto F C, Pisharodi M
Surg Neurol. 1984 Dec;22(6):559-64. doi: 10.1016/0090-3019(84)90432-4.
Stereotactic biopsy of deep-seated brain lesions by computed tomography guidance with intravenous contrast medium enhancement is now a well-recognized technique. However, arteriography continues to be the best method for studying the vasculature of such lesions. A method is described here in which a limited arteriography can be incorporated into the computed tomographic technique especially for the purpose of avoiding injury to vessels in stereotactic biopsy procedures. The technique requires that a single 4-mL bolus of contrast medium be injected intraarterially as the computed tomography scan for stereotactic localization is performed. The vessels are thereby seen in the same computed tomographic image as that used for stereotactic localization. The method has these additional advantages: it provides more pronounced contrast medium enhancement; it requires only 4 mL of contrast medium and can therefore be used in patients with renal failure; it can often distinguish crude arterial and venous phases; and lastly, it can be performed with routinely available equipment.
通过计算机断层扫描引导并使用静脉造影剂增强对深部脑病变进行立体定向活检，如今已是一项公认的技术。然而，动脉造影术仍是研究此类病变血管系统的最佳方法。本文描述了一种方法，可将有限的动脉造影术纳入计算机断层扫描技术中，特别是为了避免在立体定向活检过程中损伤血管。该技术要求在进行立体定向定位的计算机断层扫描时，经动脉注射单剂量4毫升的造影剂。这样，血管就能在与立体定向定位相同的计算机断层图像中显示出来。该方法还有这些额外的优点：它能提供更明显的造影剂增强效果；仅需4毫升造影剂，因此可用于肾衰竭患者；它常常能区分粗略的动脉期和静脉期；最后，它可以用常规可用的设备进行操作。
