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首页> 外文期刊>Ultrasound in Medicine and Biology >Improved imaging of hepatic metastases with delayed pulse inversion harmonic imaging using a contrast agent SH U 508A: preliminary study.
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Improved imaging of hepatic metastases with delayed pulse inversion harmonic imaging using a contrast agent SH U 508A: preliminary study.

机译：使用造影剂SH U 508A通过延迟脉冲反转谐波成像改进的肝转移成像：初步研究。

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摘要

To investigate the feasibility of delayed pulse-inversion harmonic imaging (PIHI) with the SH U 508A to improve imaging of hepatic metastases, we evaluated 20 patients with known hepatic metastases. Conventional ultrasound (US) was performed before administration, and PIHI was performed 5 min after a bolus injection of 4 G of microbubble contrast agent (300 mg/mL of SH U 508A). Intense, homogeneous enhancement in the liver parenchyma was seen in all patients on delayed PIHI. In 10 patients (50%), 1 or more focal liver lesions that were not seen on unenhanced imaging were detected on delayed PIHI. When comparing 55 lesions that were seen on both techniques, delayed PIHI was superior to unenhanced imaging in terms of lesion conspicuity and lesion-to-liver contrast (p < 0.001, respectively). Delayed PIHI with SH U 508A can improve conspicuity of hepatic metastases and reveal focal liver lesions that are not detected on unenhanced imaging.
机译：为了研究使用SH U 508A进行延迟脉冲反转谐波成像（PIHI）改善肝转移成像的可行性，我们评估了20例已知肝转移的患者。给药前进行常规超声（US），推注4 G微泡造影剂（300 mg / mL SH U 508A）后5分钟进行PIHI。延迟PIHI治疗的所有患者均可见肝实质强烈而均匀的增强。在10例（50％）患者中，延迟PIHI检出1例或1例以上未在增强成像中未见的局灶性肝病灶。当比较两种技术上看到的55个病变时，就病变的明显程度和病变与肝脏的对比而言，延迟PIHI优于未增强的成像（分别为p <0.001）。迟发性PIHI与SH U 508A可以改善肝转移灶的明显性，并揭示在未增强影像学检查中未发现的局灶性肝病灶。

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