Publication date: Available online 5 November 2018
Source: Ultrasound in Medicine & Biology
Author(s): Hong Han, Hong Ding, Zhengbiao Ji, Weibin Zhang, Qun Wang, Wenping Wang
Abstract
The purpose of the study was to evaluate the vascular architecture of focal liver lesions with the newly released non-contrast micro-flow imaging (MFI) technique. Eighty patients with 80 hepatic tumors were enrolled in this study. The richness of displayed blood flow was first compared with color Doppler flow imaging using grades according to Adler's method. The results indicated that MFI outperformed color Doppler flow imaging with a statistically significant difference (p <0.0001). With the enhanced position in arterial phase of contrast-enhanced ultrasound imaging as the ground truth, the displayed blood flow distribution within tumors in MFI was further evaluated. The coincidence rate between MFI and contrast-enhanced ultrasound was 73.75% (59/80), which was higher than that of color Doppler flow imaging (52.5%, 42/80) (p < 0.0001). Moreover, for the five cases of focal nodular hyperplasia, MFI clearly revealed the spoke-wheel or radiating intra-tumoral vasculature, a finding specific to the diagnosis of focal nodular hyperplasia.
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