Epileptic Ictal Hyperperfusion on Arterial Spin Labeling Perfusion and Diffusion-Weighted Magnetic Resonance Images in Posterior Reversible Encephalopathy Syndrome

Kayo Wakisaka, Takato Morioka, Takafumi Shimogawa, Kei Murao, Yuka Kanazawa, Noriko Hagiwara, Shuji Arakawa

研究成果: ジャーナルへの寄稿記事

9 引用 (Scopus)

抄録

Background The hemodynamic state of the posterior dominant vasogenic edema in posterior reversible encephalopathy syndrome (PRES) is controversial. The aim of this retrospective study was to examine the contribution of epileptic ictal hyperperfusion in patients with PRES using combined magnetic resonance perfusion imaging with arterial spin labeling (ASL) and diffusion-weighted magnetic resonance imaging (MRI). Methods A detailed review of chronological MRI findings in 2 patients, including diffusion-weighted imaging (DWI) and ASL, with special reference to clinical and electroencephalographic findings, was performed. At the onset of PRES, both patients developed secondary generalized seizures. Results At the first PRES episode in Case 1, ASL and DWI clearly depicted "ictal hyperperfusion" and prolonged epilepsy-induced cytotoxic edema in the left parieto-occipital lobe cortex, located around the vasogenic edema of the PRES lesion in the left occipital lobe (hypoperfused area). At the second and third episodes (2 and 7 months after the first episode, respectively), although recurrent PRES was ruled out, ASL and DWI clearly demonstrated ictal hyperperfusion in the left posterior temporal and parieto-occipital lobes associated with partial nonconvulsive status epilepticus, which developed around the PRES-related old hematoma lesion. In Case 2, peri-ictal MRI findings of ictal ASL hyperperfusion and cortical hyperintensity on DWI were also noted in the left parieto-occipital lobe, but were mild compared with Case 1. Conclusions Combined use of DWI and ASL can provide information on hemodynamic state associated with epileptic ictal hyperperfusion in the various phases of PRES.

元の言語英語
ページ(範囲)228-237
ページ数10
ジャーナルJournal of Stroke and Cerebrovascular Diseases
25
発行部数1
DOI
出版物ステータス出版済み - 1 1 2016

Fingerprint

Posterior Leukoencephalopathy Syndrome
Magnetic Resonance Spectroscopy
Occipital Lobe
Perfusion
Stroke
Edema
Hemodynamics
Magnetic Resonance Imaging
Diffusion Magnetic Resonance Imaging
Status Epilepticus
Magnetic Resonance Angiography
Hematoma
Epilepsy
Seizures
Retrospective Studies

All Science Journal Classification (ASJC) codes

  • Surgery
  • Rehabilitation
  • Clinical Neurology
  • Cardiology and Cardiovascular Medicine

これを引用

Epileptic Ictal Hyperperfusion on Arterial Spin Labeling Perfusion and Diffusion-Weighted Magnetic Resonance Images in Posterior Reversible Encephalopathy Syndrome. / Wakisaka, Kayo; Morioka, Takato; Shimogawa, Takafumi; Murao, Kei; Kanazawa, Yuka; Hagiwara, Noriko; Arakawa, Shuji.

:: Journal of Stroke and Cerebrovascular Diseases, 巻 25, 番号 1, 01.01.2016, p. 228-237.

研究成果: ジャーナルへの寄稿記事

@article{62478fb2248d41ed9a1f60407fa0395d,
title = "Epileptic Ictal Hyperperfusion on Arterial Spin Labeling Perfusion and Diffusion-Weighted Magnetic Resonance Images in Posterior Reversible Encephalopathy Syndrome",
abstract = "Background The hemodynamic state of the posterior dominant vasogenic edema in posterior reversible encephalopathy syndrome (PRES) is controversial. The aim of this retrospective study was to examine the contribution of epileptic ictal hyperperfusion in patients with PRES using combined magnetic resonance perfusion imaging with arterial spin labeling (ASL) and diffusion-weighted magnetic resonance imaging (MRI). Methods A detailed review of chronological MRI findings in 2 patients, including diffusion-weighted imaging (DWI) and ASL, with special reference to clinical and electroencephalographic findings, was performed. At the onset of PRES, both patients developed secondary generalized seizures. Results At the first PRES episode in Case 1, ASL and DWI clearly depicted {"}ictal hyperperfusion{"} and prolonged epilepsy-induced cytotoxic edema in the left parieto-occipital lobe cortex, located around the vasogenic edema of the PRES lesion in the left occipital lobe (hypoperfused area). At the second and third episodes (2 and 7 months after the first episode, respectively), although recurrent PRES was ruled out, ASL and DWI clearly demonstrated ictal hyperperfusion in the left posterior temporal and parieto-occipital lobes associated with partial nonconvulsive status epilepticus, which developed around the PRES-related old hematoma lesion. In Case 2, peri-ictal MRI findings of ictal ASL hyperperfusion and cortical hyperintensity on DWI were also noted in the left parieto-occipital lobe, but were mild compared with Case 1. Conclusions Combined use of DWI and ASL can provide information on hemodynamic state associated with epileptic ictal hyperperfusion in the various phases of PRES.",
author = "Kayo Wakisaka and Takato Morioka and Takafumi Shimogawa and Kei Murao and Yuka Kanazawa and Noriko Hagiwara and Shuji Arakawa",
year = "2016",
month = "1",
day = "1",
doi = "10.1016/j.jstrokecerebrovasdis.2015.09.023",
language = "English",
volume = "25",
pages = "228--237",
journal = "Journal of Stroke and Cerebrovascular Diseases",
issn = "1052-3057",
publisher = "W.B. Saunders Ltd",
number = "1",

}

TY - JOUR

T1 - Epileptic Ictal Hyperperfusion on Arterial Spin Labeling Perfusion and Diffusion-Weighted Magnetic Resonance Images in Posterior Reversible Encephalopathy Syndrome

AU - Wakisaka, Kayo

AU - Morioka, Takato

AU - Shimogawa, Takafumi

AU - Murao, Kei

AU - Kanazawa, Yuka

AU - Hagiwara, Noriko

AU - Arakawa, Shuji

PY - 2016/1/1

Y1 - 2016/1/1

N2 - Background The hemodynamic state of the posterior dominant vasogenic edema in posterior reversible encephalopathy syndrome (PRES) is controversial. The aim of this retrospective study was to examine the contribution of epileptic ictal hyperperfusion in patients with PRES using combined magnetic resonance perfusion imaging with arterial spin labeling (ASL) and diffusion-weighted magnetic resonance imaging (MRI). Methods A detailed review of chronological MRI findings in 2 patients, including diffusion-weighted imaging (DWI) and ASL, with special reference to clinical and electroencephalographic findings, was performed. At the onset of PRES, both patients developed secondary generalized seizures. Results At the first PRES episode in Case 1, ASL and DWI clearly depicted "ictal hyperperfusion" and prolonged epilepsy-induced cytotoxic edema in the left parieto-occipital lobe cortex, located around the vasogenic edema of the PRES lesion in the left occipital lobe (hypoperfused area). At the second and third episodes (2 and 7 months after the first episode, respectively), although recurrent PRES was ruled out, ASL and DWI clearly demonstrated ictal hyperperfusion in the left posterior temporal and parieto-occipital lobes associated with partial nonconvulsive status epilepticus, which developed around the PRES-related old hematoma lesion. In Case 2, peri-ictal MRI findings of ictal ASL hyperperfusion and cortical hyperintensity on DWI were also noted in the left parieto-occipital lobe, but were mild compared with Case 1. Conclusions Combined use of DWI and ASL can provide information on hemodynamic state associated with epileptic ictal hyperperfusion in the various phases of PRES.

AB - Background The hemodynamic state of the posterior dominant vasogenic edema in posterior reversible encephalopathy syndrome (PRES) is controversial. The aim of this retrospective study was to examine the contribution of epileptic ictal hyperperfusion in patients with PRES using combined magnetic resonance perfusion imaging with arterial spin labeling (ASL) and diffusion-weighted magnetic resonance imaging (MRI). Methods A detailed review of chronological MRI findings in 2 patients, including diffusion-weighted imaging (DWI) and ASL, with special reference to clinical and electroencephalographic findings, was performed. At the onset of PRES, both patients developed secondary generalized seizures. Results At the first PRES episode in Case 1, ASL and DWI clearly depicted "ictal hyperperfusion" and prolonged epilepsy-induced cytotoxic edema in the left parieto-occipital lobe cortex, located around the vasogenic edema of the PRES lesion in the left occipital lobe (hypoperfused area). At the second and third episodes (2 and 7 months after the first episode, respectively), although recurrent PRES was ruled out, ASL and DWI clearly demonstrated ictal hyperperfusion in the left posterior temporal and parieto-occipital lobes associated with partial nonconvulsive status epilepticus, which developed around the PRES-related old hematoma lesion. In Case 2, peri-ictal MRI findings of ictal ASL hyperperfusion and cortical hyperintensity on DWI were also noted in the left parieto-occipital lobe, but were mild compared with Case 1. Conclusions Combined use of DWI and ASL can provide information on hemodynamic state associated with epileptic ictal hyperperfusion in the various phases of PRES.

UR - http://www.scopus.com/inward/record.url?scp=84960342548&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84960342548&partnerID=8YFLogxK

U2 - 10.1016/j.jstrokecerebrovasdis.2015.09.023

DO - 10.1016/j.jstrokecerebrovasdis.2015.09.023

M3 - Article

C2 - 26515648

AN - SCOPUS:84960342548

VL - 25

SP - 228

EP - 237

JO - Journal of Stroke and Cerebrovascular Diseases

JF - Journal of Stroke and Cerebrovascular Diseases

SN - 1052-3057

IS - 1

ER -