Abstract
Magnetic resonance imaging (MRI) was performed in a total of 35 patients with extrapyramidal disorder, including Parkinson's disease (n=15), multiple system atrophy (MSA, n=12), progressive supranuclear palsy (PSP, n=5), and dentatoruburopallidoluysian atrophy (DRPLA, n=3). MR images 5-10 mm in thickness were obtained in both axial and coronal sections. In all patients with Parkinson's disease, there was non-specific age-related cortical atrophy on T[sub 1]-weighted images. T[sub 2]-weighted imaging showed not only putaminal hypointensity, but also linear hyperintensity in the lateral part of putamen. However, these MR findings were not considered pathognomonic. All MSA patients showed atrophy of the brainstem and cerbellum on T[sub 1]-weighted images. Both proton density and T[sub 2]-weighted image showed increased signal intensity in the pontine transverse fibers between the tegmentum and basis pontis. These findings were correlated with atrophy degree of brainstem and middle cerebellar peduncles. It was also difficult to distinguish hyperintesnity in red nuclei from substantia nigra on T[sub 2]-weighted images. Severe atrophy of tegmentum of midbrain and high signal intensity area in the periaqueductal zone were found in all PSP patients on proton density images. Distinction between low signal areas of red nuclei and substantia nigra were obscure in these patients. In some cases
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Ikeda, Ken;
Kinoshita, Masao;
Iwasaki, Yasuo;
Shiojima, Toshiya;
[1]
Sunahara, Nobuhiko
- Toho Univ., Tokyo (Japan). Ohashi Hospital
Citation Formats
Ikeda, Ken, Kinoshita, Masao, Iwasaki, Yasuo, Shiojima, Toshiya, and Sunahara, Nobuhiko.
MR imaging of extrapyramidal disorders.
Japan: N. p.,
1992.
Web.
Ikeda, Ken, Kinoshita, Masao, Iwasaki, Yasuo, Shiojima, Toshiya, & Sunahara, Nobuhiko.
MR imaging of extrapyramidal disorders.
Japan.
Ikeda, Ken, Kinoshita, Masao, Iwasaki, Yasuo, Shiojima, Toshiya, and Sunahara, Nobuhiko.
1992.
"MR imaging of extrapyramidal disorders."
Japan.
@misc{etde_6919711,
title = {MR imaging of extrapyramidal disorders}
author = {Ikeda, Ken, Kinoshita, Masao, Iwasaki, Yasuo, Shiojima, Toshiya, and Sunahara, Nobuhiko}
abstractNote = {Magnetic resonance imaging (MRI) was performed in a total of 35 patients with extrapyramidal disorder, including Parkinson's disease (n=15), multiple system atrophy (MSA, n=12), progressive supranuclear palsy (PSP, n=5), and dentatoruburopallidoluysian atrophy (DRPLA, n=3). MR images 5-10 mm in thickness were obtained in both axial and coronal sections. In all patients with Parkinson's disease, there was non-specific age-related cortical atrophy on T[sub 1]-weighted images. T[sub 2]-weighted imaging showed not only putaminal hypointensity, but also linear hyperintensity in the lateral part of putamen. However, these MR findings were not considered pathognomonic. All MSA patients showed atrophy of the brainstem and cerbellum on T[sub 1]-weighted images. Both proton density and T[sub 2]-weighted image showed increased signal intensity in the pontine transverse fibers between the tegmentum and basis pontis. These findings were correlated with atrophy degree of brainstem and middle cerebellar peduncles. It was also difficult to distinguish hyperintesnity in red nuclei from substantia nigra on T[sub 2]-weighted images. Severe atrophy of tegmentum of midbrain and high signal intensity area in the periaqueductal zone were found in all PSP patients on proton density images. Distinction between low signal areas of red nuclei and substantia nigra were obscure in these patients. In some cases of MSA and PSP, small oval hypointensity signals were also found in the superior colliculi. All DRPLA patients had cortical and cerebellar atrophy, but normal brainstem on T[sub 1]-weighted images. On proton density and T[sub 2]-weighted images, hyperintensity signal areas were found in the superior cerebellar peduncles. There was signal restoration in the dentate nuclei on T[sub 2]-weighted images. There was no specific change of signal intensity in the red nuclei, substantia nigra, basal ganglia, and cerebral white matter. (N.K.).}
journal = []
volume = {36:4}
journal type = {AC}
place = {Japan}
year = {1992}
month = {Apr}
}
title = {MR imaging of extrapyramidal disorders}
author = {Ikeda, Ken, Kinoshita, Masao, Iwasaki, Yasuo, Shiojima, Toshiya, and Sunahara, Nobuhiko}
abstractNote = {Magnetic resonance imaging (MRI) was performed in a total of 35 patients with extrapyramidal disorder, including Parkinson's disease (n=15), multiple system atrophy (MSA, n=12), progressive supranuclear palsy (PSP, n=5), and dentatoruburopallidoluysian atrophy (DRPLA, n=3). MR images 5-10 mm in thickness were obtained in both axial and coronal sections. In all patients with Parkinson's disease, there was non-specific age-related cortical atrophy on T[sub 1]-weighted images. T[sub 2]-weighted imaging showed not only putaminal hypointensity, but also linear hyperintensity in the lateral part of putamen. However, these MR findings were not considered pathognomonic. All MSA patients showed atrophy of the brainstem and cerbellum on T[sub 1]-weighted images. Both proton density and T[sub 2]-weighted image showed increased signal intensity in the pontine transverse fibers between the tegmentum and basis pontis. These findings were correlated with atrophy degree of brainstem and middle cerebellar peduncles. It was also difficult to distinguish hyperintesnity in red nuclei from substantia nigra on T[sub 2]-weighted images. Severe atrophy of tegmentum of midbrain and high signal intensity area in the periaqueductal zone were found in all PSP patients on proton density images. Distinction between low signal areas of red nuclei and substantia nigra were obscure in these patients. In some cases of MSA and PSP, small oval hypointensity signals were also found in the superior colliculi. All DRPLA patients had cortical and cerebellar atrophy, but normal brainstem on T[sub 1]-weighted images. On proton density and T[sub 2]-weighted images, hyperintensity signal areas were found in the superior cerebellar peduncles. There was signal restoration in the dentate nuclei on T[sub 2]-weighted images. There was no specific change of signal intensity in the red nuclei, substantia nigra, basal ganglia, and cerebral white matter. (N.K.).}
journal = []
volume = {36:4}
journal type = {AC}
place = {Japan}
year = {1992}
month = {Apr}
}