TRANSCRANIAL COLOR-CODED REAL-TIME SONOGRAPHY IN THE EVALUATION OF INTRACRANIAL NEOPLASMS AND ARTERIOVENOUS-MALFORMATIONS
TRANSCRANIAL COLOR-CODED REAL-TIME SONOGRAPHY IN THE EVALUATION OF INTRACRANIAL NEOPLASMS AND ARTERIOVENOUS-MALFORMATIONS
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DOI：
10.1227/00006123-199209000-00006
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发表时间：
1992-09-01
期刊：
影响因子：
4.8
通讯作者：
SMITH, RR
中科院分区：
文献类型：
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作者：
BECKER, G;PEREZ, J;SMITH, RR
本文对57例原发性颅内肿瘤（n = 49）或动静脉畸形（n = 8）患者行经颅彩色编码实时超声（TCCS）检查，评价其诊断潜力。在46例（81%）患者中，病变可以通过该技术识别。7例患者因骨厚不能行经颅超声检查；在其余4例患者中，尽管进行了充分的超声检查，但肿瘤与邻近脑组织无法区分，这表明这些肿瘤是等回声的。脑肿瘤的声像图特征非常相似：病变的高回声基质中散布着低回声像素。较大的低回声区（0.5-1 cm）提示肿瘤坏死。7例患者TCCS与计算机断层扫描在肿瘤大小方面存在差异，TCCS在计算机断层扫描上显示相应的低密度区域内有较小的延伸区域。超声检查未发现局灶周围脑水肿。在13例患者中，发现了一个薄的、低回声的肿瘤周围晕，这与计算机断层扫描发现的局灶周围脑水肿无关，可能是由于邻近实质的压迫。在动静脉畸形患者中，TCCS可以通过对血管内血流的彩色编码描述来识别主要喂食器、病灶和引流静脉系统。总之，TCCS是一种额外的初始诊断方法，非常适合于肿瘤患者的随访，并提供有关组织特征和血流的宝贵信息。
TRANSCRANIAL COLOR-CODED real-time sonography (TCCS) was performed in 57 patients with primary intracranial brain tumors (n = 49) or arteriovenous malformations (n = 8) to evaluate its diagnostic potential. In 46 patients (81%), lesions could be identified employing this technique. In 7 patients, transcranial ultrasound examination was not feasible because of bone thickness; in the remaining 4 patients, the tumor was indistinguishable from adjacent brain tissue despite sufficient insonation, suggesting that these neoplasms are isoechogenic. The sonographic features of brain tumors were very similar: a hyperechogenic matrix of the lesion was interspersed by hypoechogenic pixels. Larger hypoechogenic areas (0.5-1 cm) gave evidence of tumor necrosis. Differences between the findings of TCCS and computed tomography concerning tumor size were found in 7 patients, in whom TCCS revealed an area of smaller extension within the corresponding hypodense area on the computed tomographic scan. Perifocal brain edema could not be detected by ultrasound examination. In 13 patients, a thin, hypoechogenic peritumoral halo was disclosed that did not correlate with perifocal brain edema identified by computed tomography and that may have been due to compression of adjacent parenchyma. In patients with arteriovenous malformations, TCCS permitted the identification of the main feeders, the nidus, and the draining venous system by color-coded depiction of intravascular blood flow. In conclusion, TCCS is an additional method for initial diagnosis and highly suitable for follow-up in tumor patients and provides valuable information about tissue characteristics and blood flow.