Copyright information:Taken from "Meta-analysis of the literature on diagnostic accuracy of SPECT in parkinsonian syndromes"http://www.biomedcentral.com/1471-2377/7/27BMC Neurology 2007;7():27-27.Published online 1 Sep 2007PMCID:PMC2064928. APS (MSA & PSP). Doctors Prediction [28, 34, 38, 39]. * follow-up trial. # The pooled odds ratio (95%CI) after excluding the studies with a sensitivity of 100% and a specificity of 0% (Stoffers '05 and Schwarz '98) did not change significantly: 6 (1–40). Both trials diagnosed at the beginning of the follow-up all patients as having PD.