Puls R, Stroszczynski C, Hildebrandt B, Hosten N, Bechstein W O, Riess H, Felix R
Medizinische Fakultät Charité, Humboldt Universität zu Berlin.
Ultraschall Med. 2000 Aug;21(4):176-9. doi: 10.1055/s-2000-6922.
This study was designed to determine whether intra-arterial hepatic port catheter systems can be adequately detected by contrast-enhanced power-Doppler sonography.
15 patients with a liver port system were investigated before chemotherapy. Examinations were performed with short bolus injections of the contrast medium Levovist in addition to angiographic imaging.
Liver port systems were easily detected by the contrast-enhanced power-Doppler method. In 11 out of 15 patients a correct flow of the contrast medium via the port system was seen with both examination methods. One partially occluded hepatic artery was not identified by power-Doppler despite correct flow of the contrast fluid. In one of three patients showing an incorrect flow of the contrast medium the blood circulated primarily through the splenic artery due to a dislocation of the catheter tip. Circulation through both the hepatic and the splenic arteries was shown in a second patient and an occluded right hepatic artery was demonstrated in a third. All these findings were observed with both examination techniques.
Power-Doppler sonography provides a reliable image of the port catheter system. This method can be used as a follow-up procedure to determine the state of arterial hepatic circulation during chemotherapy.
本研究旨在确定对比增强能量多普勒超声检查能否充分检测肝动脉内门静脉导管系统。
对15例有肝门静脉系统的患者在化疗前进行检查。除血管造影成像外，还通过短时间团注造影剂声诺维进行检查。
对比增强能量多普勒方法能轻松检测到肝门静脉系统。15例患者中有11例通过两种检查方法均观察到造影剂经门静脉系统的正确流动。尽管造影剂流动正确，但能量多普勒未识别出1例部分闭塞的肝动脉。在3例显示造影剂流动错误的患者中，有1例因导管尖端移位，血液主要通过脾动脉循环。第二例患者显示肝动脉和脾动脉均有血液循环，第三例显示右肝动脉闭塞。两种检查技术均观察到了所有这些结果。
能量多普勒超声能提供门静脉导管系统的可靠图像。该方法可用作化疗期间确定肝动脉循环状态的随访检查。
