Noninvasive imaging assessment of non-alcoholic fatty liver disease: Focus on liver scintigraphy

Table 1 Advantages and disadvantages of imaging methods in the identification of the spectrum of nonalcoholic fatty-liver disease

Imaging method	Accuracy			Risk	Cost
	Steatosis	NASH	Fibrosis
US	++	0	0	0	+
CT	++	0	0	+++	++
MRI	+++	0	0	++	+++
TE	++	0	++	0	++
ARFI	++	0	++	0	++
MRE	++	+	+++	++	+++
Scintigraphy	++	++	0	+	+

ARFI: Acoustic radiation force impulse; CT: Computed tomography; MRE: Magnetic resonance-based elastography; MRI: Magnetic resonance imaging; NASH: Nonalcoholic steatohepatitis; TE: Transient elastography; US: Ultrasound; 0: Absent; +: Low; ++: Intermediate; +++: High.