BACKGROUND AND PURPOSE: Neuropathological studies have demonstrated that multiple system atrophy (MSA) produces selective atrophy of the putamen with sparing of the caudate nucleus, while both structures are spared in idiopathic Parkinson's disease (PD). In this study we evaluated the clinical efficacy of using putaminal atrophy in brain MRI to differentiate MSA and PD. METHODS: We measured the putamen/caudate volume ratio on brain MRI in 24 patients with MSA and 21 patients with PD. Two clinicians who were blinded to the patients' diagnoses and to each other's assessments measured the volume ratio using a computer program. RESULTS: The measured volume ratios of the two investigators were highly correlated (r=0.72, p<0.0001). The volume ratio was significantly lower in MSA (1.29+/-0.28) than PD (1.91+/-0.29, p<0.0001). Setting an arbitrary cutoff ratio of 1.6 resulted in about 90% of patients with MSA falling into the group with a lower ratio, whereas more than 80% of patients with PD belonged to the other group. CONCLUSIONS: The present results demonstrate that putaminal atrophy in MSA as measured on brain MRI represents an effective tool for differentiating MSA from PD.
BACKGROUND AND PURPOSE: Neuropathological studies have demonstrated that multiple system atrophy (MSA) produces selective atrophy of the putamen with sparing of the caudate nucleus, while both structures are spared in idiopathic Parkinson's disease (PD). In this study we evaluated the clinical efficacy of using putaminal atrophy in brain MRI to differentiate MSA and PD. METHODS: We measured the putamen/caudate volume ratio on brain MRI in 24 patients with MSA and 21 patients with PD. Two clinicians who were blinded to the patients' diagnoses and to each other's assessments measured the volume ratio using a computer program. RESULTS: The measured volume ratios of the two investigators were highly correlated (r=0.72, p<0.0001). The volume ratio was significantly lower in MSA (1.29+/-0.28) than PD (1.91+/-0.29, p<0.0001). Setting an arbitrary cutoff ratio of 1.6 resulted in about 90% of patients with MSA falling into the group with a lower ratio, whereas more than 80% of patients with PD belonged to the other group. CONCLUSIONS: The present results demonstrate that putaminal atrophy in MSA as measured on brain MRI represents an effective tool for differentiating MSA from PD.
Entities:
Keywords:
Brain MRI; Multiple system atrophy; Parkinson's disease; Putamen
Authors: S Gilman; P A Low; N Quinn; A Albanese; Y Ben-Shlomo; C J Fowler; H Kaufmann; T Klockgether; A E Lang; P L Lantos; I Litvan; C J Mathias; E Oliver; D Robertson; I Schatz; G K Wenning Journal: J Neurol Sci Date: 1999-02-01 Impact factor: 3.181
Authors: J B Schulz; M Skalej; D Wedekind; A R Luft; M Abele; K Voigt; J Dichgans; T Klockgether Journal: Ann Neurol Date: 1999-01 Impact factor: 10.422
Authors: Michael F H Schocke; Klaus Seppi; Regina Esterhammer; Christian Kremser; Katherina J Mair; Benedikt V Czermak; Werner Jaschke; Werner Poewe; Gregor K Wenning Journal: Neuroimage Date: 2004-04 Impact factor: 6.556
Authors: Nicolas Nicastro; Valentina Garibotto; Antoine Poncet; Simon Badoud; Pierre R Burkhard Journal: Mol Imaging Biol Date: 2016-04 Impact factor: 3.488
Authors: F Nemmi; A Pavy-Le Traon; O R Phillips; M Galitzky; W G Meissner; O Rascol; P Péran Journal: Neuroimage Clin Date: 2019-05-13 Impact factor: 4.881