SLC6A3 and Lewy body dementia: Generally, the utility of these candidate biomarkers has only been supported in a research context, aside from dopamine transporter imaging, which due to its high specificity in differentiating DLB from AD (McKeith et al., 2007) is now recommended clinically as a method for confirming the diagnosis of DLB in uncertain cases (Mak et al., 2014).