Various imaging manifestations of posterior reversible encephalopathy syndrome (PRES) on magnetic resonance imaging (MRI)

2017
journal article
article
cris.lastimport.wos2024-04-09T21:33:00Z
dc.abstract.enBACKGROUND: Posterior reversible encephalopathy syndrome (PRES), also called the acute hypertensive encephalopathy and reversible posterior leukoencephalopathy syndrome (RPLS), is a neurotoxic syndrome of cerebral vasoregulation classically characterized by bilaterally symmetrical parieto-occipital edema. However, the imaging findings are variable and may occur in other locations such as the frontal lobes, thalami, basal ganglia and brainstem. Most commonly, PRES presents with hyperintense signals on T2 and FLAIR sequences. Restricted diffusion and hemorrhage are rare. This study presents the typical and atypical manifestations of PRES on 3T MR images. MATERIAL AND METHODS: It is a retrospective study analyzing a radiology report database and MR images of 92 patients with a clinical and radiological diagnosis of PRES. The brain MRI images of these patients were evaluated. The regions involved and the signal intensity of the affected areas on T1, T2, FLAIR and DW sequences were recorded. The location of the abnormal signal intensity as well as the presence or absence of atypical features such as diffusion restriction and hemorrhage were also recorded. RESULTS: The most commonly affected region was the parieto-occipital lobes (100%), however, other atypical regions involved were the frontal lobes (30.4%), temporal lobes (8.69%), basal ganglia (22%), cerebellum (17.39%), brainstem (9%) and thalamus (4%). Some of the cases showed restricted diffusion (43%) and hemorrhage (9%). CONCLUSIONS: The involvement of the parieto-occipital, frontal and temporal lobes is common in PRES. Occasionally, there may be an involvement of the basal ganglia, cerebellum and brainstem, with or without hemorrhage and restricted diffusion. Radiologists should be aware of the typical and atypical imaging manifestations of PRES in order to make an accurate diagnosis.pl
dc.contributor.authorRaman, Rajeshpl
dc.contributor.authorDevaramane, Radhikapl
dc.contributor.authorJagadish, Geetha Mukundapl
dc.contributor.authorChowdaiah, Sanjanapl
dc.date.accessioned2017-02-28T09:42:12Z
dc.date.available2017-02-28T09:42:12Z
dc.date.issued2017pl
dc.date.openaccess0
dc.description.accesstimew momencie opublikowania
dc.description.additionalBibliogr. s. 70pl
dc.description.physical64-70pl
dc.description.versionostateczna wersja wydawcy
dc.description.volume82pl
dc.identifier.doi10.12659/PJR.899960pl
dc.identifier.eissn1899-0967pl
dc.identifier.issn1733-134Xpl
dc.identifier.urihttp://ruj.uj.edu.pl/xmlui/handle/item/38954
dc.languageengpl
dc.language.containerengpl
dc.rightsUdzielam licencji. Uznanie autorstwa - Użycie niekomercyjne - Bez utworów zależnych 3.0 Polska*
dc.rights.licenceCC-BY-NC-ND
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/pl/legalcode*
dc.share.typeotwarte czasopismo
dc.subject.endiffusion magnetic resonance imagingpl
dc.subject.enhypertensionpl
dc.subject.enposterior leukoencephalopathy syndromepl
dc.subject.enpre-eclampsiapl
dc.subtypeArticlepl
dc.titleVarious imaging manifestations of posterior reversible encephalopathy syndrome (PRES) on magnetic resonance imaging (MRI)pl
dc.title.journalPolish Journal of Radiologypl
dc.typeJournalArticlepl
dspace.entity.typePublication
cris.lastimport.wos
2024-04-09T21:33:00Z
dc.abstract.enpl
BACKGROUND: Posterior reversible encephalopathy syndrome (PRES), also called the acute hypertensive encephalopathy and reversible posterior leukoencephalopathy syndrome (RPLS), is a neurotoxic syndrome of cerebral vasoregulation classically characterized by bilaterally symmetrical parieto-occipital edema. However, the imaging findings are variable and may occur in other locations such as the frontal lobes, thalami, basal ganglia and brainstem. Most commonly, PRES presents with hyperintense signals on T2 and FLAIR sequences. Restricted diffusion and hemorrhage are rare. This study presents the typical and atypical manifestations of PRES on 3T MR images. MATERIAL AND METHODS: It is a retrospective study analyzing a radiology report database and MR images of 92 patients with a clinical and radiological diagnosis of PRES. The brain MRI images of these patients were evaluated. The regions involved and the signal intensity of the affected areas on T1, T2, FLAIR and DW sequences were recorded. The location of the abnormal signal intensity as well as the presence or absence of atypical features such as diffusion restriction and hemorrhage were also recorded. RESULTS: The most commonly affected region was the parieto-occipital lobes (100%), however, other atypical regions involved were the frontal lobes (30.4%), temporal lobes (8.69%), basal ganglia (22%), cerebellum (17.39%), brainstem (9%) and thalamus (4%). Some of the cases showed restricted diffusion (43%) and hemorrhage (9%). CONCLUSIONS: The involvement of the parieto-occipital, frontal and temporal lobes is common in PRES. Occasionally, there may be an involvement of the basal ganglia, cerebellum and brainstem, with or without hemorrhage and restricted diffusion. Radiologists should be aware of the typical and atypical imaging manifestations of PRES in order to make an accurate diagnosis.
dc.contributor.authorpl
Raman, Rajesh
dc.contributor.authorpl
Devaramane, Radhika
dc.contributor.authorpl
Jagadish, Geetha Mukunda
dc.contributor.authorpl
Chowdaiah, Sanjana
dc.date.accessioned
2017-02-28T09:42:12Z
dc.date.available
2017-02-28T09:42:12Z
dc.date.issuedpl
2017
dc.date.openaccess
0
dc.description.accesstime
w momencie opublikowania
dc.description.additionalpl
Bibliogr. s. 70
dc.description.physicalpl
64-70
dc.description.version
ostateczna wersja wydawcy
dc.description.volumepl
82
dc.identifier.doipl
10.12659/PJR.899960
dc.identifier.eissnpl
1899-0967
dc.identifier.issnpl
1733-134X
dc.identifier.uri
http://ruj.uj.edu.pl/xmlui/handle/item/38954
dc.languagepl
eng
dc.language.containerpl
eng
dc.rights*
Udzielam licencji. Uznanie autorstwa - Użycie niekomercyjne - Bez utworów zależnych 3.0 Polska
dc.rights.licence
CC-BY-NC-ND
dc.rights.uri*
http://creativecommons.org/licenses/by-nc-nd/3.0/pl/legalcode
dc.share.type
otwarte czasopismo
dc.subject.enpl
diffusion magnetic resonance imaging
dc.subject.enpl
hypertension
dc.subject.enpl
posterior leukoencephalopathy syndrome
dc.subject.enpl
pre-eclampsia
dc.subtypepl
Article
dc.titlepl
Various imaging manifestations of posterior reversible encephalopathy syndrome (PRES) on magnetic resonance imaging (MRI)
dc.title.journalpl
Polish Journal of Radiology
dc.typepl
JournalArticle
dspace.entity.type
Publication
Affiliations

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