{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,7]],"date-time":"2026-10-07T05:28:31Z","timestamp":1791350911429,"version":"4.3.1"},"reference-count":29,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2003,4,8]],"date-time":"2003-04-08T00:00:00Z","timestamp":1049760000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Movement Disorders"],"published-print":{"date-parts":[[2003,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>[<jats:sup>123<\/jats:sup>I]Metaiodobenzylguanidine ([<jats:sup>123<\/jats:sup>I]MIBG) cardiac scintigraphy could be helpful to differentiate Parkinson's disease (PD) from multiple system atrophy (MSA), demonstrating that, in PD with autonomic failure but not in MSA, there is a myocardial postganglionic sympathetic dysfunction. To investigate whether this method is more sensitive than standard autonomic testing to detect early involvement of sympathetic cardiac efferent, we analyse MIBG myocardial uptake in 8 PD patients with normal autonomic testing (nondysautonomia PD group, NDPD) in comparison with 10 PD patients with abnormal autonomic testing (dysautonomia PD group, DPD) and 10 MSA patients. Global MIBG uptake was assessed using the ratio of [<jats:sup>123<\/jats:sup>I]MIBG uptake in the heart to the upper mediastinum (H\/M) on planar scintigraphic data. Regional MIBG uptake was determined on two single photon emission tomography scans in regions of the left ventricle. The mean H\/M ratios were significantly different among the three groups (<jats:italic>P<\/jats:italic> &lt; 0.0001). H\/M ratios of both NDPD and DPD patients groups (H\/M = 1.83 \u00b1 0.50 and 1.24 \u00b1 0.40, respectively) were significantly lower than in MSA patients (H\/M = 2.52 \u00b1 0.60). However, in NDPD patients, H\/M was significantly higher than in DPD patients. When compared to MSA patients, NDPD patients showed a regional reduction in MIBG uptake in all left ventricle regions markedly in the apex and the inferior wall. Our results suggest that MIBG myocardial scintigraphy (analysis of both H\/M ratio and regional MIBG uptake) may be more sensitive than standard autonomic testing for the early detection of silent autonomic dysfunction in PD. \u00a9 2003 Movement Disorder Society<\/jats:p>","DOI":"10.1002\/mds.10461","type":"journal-article","created":{"date-parts":[[2003,7,25]],"date-time":"2003-07-25T06:13:16Z","timestamp":1059113596000},"page":"890-897","source":"Crossref","is-referenced-by-count":193,"title":["Cardiac MIBG scintigraphy is a sensitive tool for detecting cardiac sympathetic denervation in Parkinson's disease"],"prefix":"10.1002","volume":"18","author":[{"given":"Fr\u00e9d\u00e9ric","family":"Courbon","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christine","family":"Brefel\u2010Courbon","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Claire","family":"Thalamas","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marie 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