Figure 4From: Meta-analysis of the literature on diagnostic accuracy of SPECT in parkinsonian syndromesDiagnostic differentiation between PD and APS (MSA & PSP). Presynaptic radiotracer. [28, 30, 36, 38, 39, 46-48, 50-52]. * follow-up trial. # The pooled odds ratio after excluding the study of Messa '98 (sensitivity 100%, specificity 0%) remains unchanged.Back to article page