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. 2023 Nov 7;309(2):e223146. doi: 10.1148/radiol.223146

Figure 8:

Doppler US image in a 72-year-old male patient with nonalcoholic steatohepatitis (NASH) and grade 1 steatosis. An example of a portal vein spectral Doppler image with flow speed maximum of 15.33 cm/sec and minimum of 12.72 cm/sec. The colored scale bar on the left represents the flow speed spectrum based on the flow direction. The graph on the bottom represents the Doppler spectrum and its association with flow velocity. Increased portal vein pulsatility index [(maximum velocity – minimum velocity)/maximum velocity] may be associated with NASH (46). Reproduced, with permission, from the Non-Invasive Biomarkers of Metabolic Liver Disease, or NIMBLE 1.1, study (18).

Doppler US image in a 72-year-old male patient with nonalcoholic steatohepatitis (NASH) and grade 1 steatosis. An example of a portal vein spectral Doppler image with flow speed maximum of 15.33 cm/sec and minimum of 12.72 cm/sec. The colored scale bar on the left represents the flow speed spectrum based on the flow direction. The graph on the bottom represents the Doppler spectrum and its association with flow velocity. Increased portal vein pulsatility index [(maximum velocity – minimum velocity)/maximum velocity] may be associated with NASH (46). Reproduced, with permission, from the Non-Invasive Biomarkers of Metabolic Liver Disease, or NIMBLE 1.1, study (18).