Myocardial MIBG scintigraphy in genetic Parkinson's disease as a model for Lewy body disorders

被引:16
|
作者
Gabilondo, Inigo [1 ,2 ]
Llorens, Veronica [1 ,3 ]
Rodriguez, Trinidad [3 ]
Fernandez, Manuel [1 ,2 ,4 ]
Perez Concha, Tomas [2 ]
Acera, Marian [1 ]
Tijero, Beatriz [1 ,2 ]
Murueta-Goyena, Ane [1 ]
del Pino, Rocio [1 ]
Cortes, Jesus [5 ,6 ,7 ]
Carlos Gomez-Esteban, Juan [1 ,2 ,4 ]
机构
[1] Biocruces Bizkaia Hlth Res Inst, Neurodegenerat Dis Grp, Plaza Cruces 12, Baracaldo 48903, Bizkaia, Spain
[2] Cruces Univ Hosp, Dept Neurol, Baracaldo, Bizkaia, Spain
[3] Cruces Univ Hosp, Dept Nucl Med, Baracaldo, Bizkaia, Spain
[4] Univ Basque Country UPV EHU, Dept Neurosci, Leioa, Spain
[5] Biocruces Bizkaia Hlth Res Inst, Computat Neuroimaging Grp, Baracaldo, Bizkaia, Spain
[6] Ikerbasque Basque Fdn Sci, Bilbao, Spain
[7] Univ Basque Country UPV EHU, Dept Cell Biol & Histol, Leioa, Spain
关键词
Parkinson's disease; MIBG cardiac scintigraphy; Dysautonomia; Genetic; Alpha-synuclein; I-123-MIBG CARDIAC SCINTIGRAPHY; I-123-METAIODOBENZYLGUANIDINE; MUTATION; DENERVATION; DEMENTIA; CARRIERS; E46K;
D O I
10.1007/s00259-018-4183-0
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 ; 100207 ; 1009 ;
摘要
PurposeTo identify myocardial sympathetic denervation patterns suggestive of Lewy body (LB) pathology in patients with genetic and idiopathic parkinsonisms by I-123-metaiodobenzylguanidine (MIBG) scintigraphy.MethodsWe retrospectively analysed myocardial MIBG images acquired with a dual-head gamma camera and low-energy high-resolution collimator (LEHR) in 194 patients with suspected synucleinopathy or atypical parkinsonism, including 34 with genetic Parkinson's disease (PD; 4 PARK1, 8 PARK2 and 22 PARK8), 85 with idiopathic PD (iPD), 6 with idiopathic REM sleep behaviour disorder (iRBD), 17 with dementia with LB (DLB), 40 with multiple system atrophy (MSA) and 12 with progressive supranuclear palsy (PSP), and in 45 healthy controls. We calculated heart-to-mediastinum MIBG uptake ratios (HMR) at 15min and 4h (HMR4H) for the LEHR and standardized medium-energy collimators, to obtain classification accuracies and optimal cut-off values for HMR using supervised classification and ROC analyses.ResultsWhile patients with LB disorders had markedly lower HMR4H(LEHR) than controls (controls 1.860.26, iPD 1.38 +/- 0.29, iRBD 1.23 +/- 0.09, PARK1 1.20 +/- 0.09, DLB 1.17 +/- 0.11; p<0.05), for the remaining patient categories differences were smaller (PARK8 1.51 +/- 0.32; p<0.05) or not significant (MSA 1.82 +/- 0.37, PSP 1.59 +/- 0.23, PARK2 1.51 +/- 0.30; p>0.05). The diagnostic accuracy of HMR4H(LEHR) was highest in patients with LB disorders (PARK1, iPD, DLB, iRBD; 89% to 97%) and lowest in those with PARK2, PARK8, PSP and MSA (65% to 76%), with an optimal HMR4H(LEHR) cut-off value of 1.72 for discriminating most patients with LB disorders including iPD and 1.40 for discriminating those with aggressive LB spectrum phenotypes (DLB, PARK1 and iRBD).Conclusion Our study including patients with a wide spectrum of genetic and idiopathic parkinsonisms with different degrees of LB pathology further supports myocardial MIBG scintigraphy as an accurate tool for discriminating patients with LB spectrum disorders.
引用
收藏
页码:376 / 384
页数:9
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