title: Diagnosis and follow-up of posterior inferior cerebellar artery dissection complicated with ischemic stroke assisted by T1-VISTA: a report of two cases.
abstract: BACKGROUND
  Volume isotropic turbo spin-echo acquisition (VISTA) is a new method similar to the 3D black-blood imaging method that enables visualization of a intramural hematoma. T1-VISTA has recently been applied in the diagnosis of intracranial arterial dissection. However, the identification of an intramural hematoma in posterior inferior cerebellar dissection (PICA-D) by T1-VISTA has only rarely been reported.
  
  
  METHODS
  We herein report two patients who suffered from PICA-D complicated with ischemic stroke. Initial magnetic resonance arteriography was not informative, however, T1-VISTA depicted high-intensity signal areas suggesting an intramural hematoma of PICA-D in both cases. The high-intensity signal areas gradually reduced and finally disappeared at 4 months and 5 months after the onset, respectively.
  
  
  CONCLUSIONS
  Our cases demonstrate that T1-VISTA was able to assist in the diagnosis and follow-up of PICA-D.
authors.affiliation: Department of Cerebrovascular Medicine, Saga Medical Center Koseikan, Kase-machi Nakabaru 400, Saga, 840-8571, Japan.
authors.forename: Koji
authors.initials: K
authors.lastname: Ishitsuka
authors.affiliation: Department of Cerebrovascular Medicine, Saga Medical Center Koseikan, Kase-machi Nakabaru 400, Saga, 840-8571, Japan.
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Sakaki
authors.affiliation: Department of Cerebrovascular Disease, Japanese Fukuoka Red Cross Hospital, Fukuoka, 815-8555, Japan.
authors.forename: Shota
authors.initials: S
authors.lastname: Sakai
authors.affiliation: Department of Cerebrovascular Medicine, Saga Medical Center Koseikan, Kase-machi Nakabaru 400, Saga, 840-8571, Japan.
authors.forename: Takeshi
authors.initials: T
authors.lastname: Uwatoko
authors.affiliation: Department of Radiology, Saga Medical Center Koseikan, Saga, 840-8571, Japan.
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Aibe
authors.affiliation: Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, 812-8582, Japan.
authors.forename: Tetsuro
authors.initials: T
authors.lastname: Ago
authors.affiliation: Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, 812-8582, Japan.
authors.forename: Takanari
authors.initials: T
authors.lastname: Kitazono
authors.affiliation: Department of Cerebrovascular Medicine, Saga Medical Center Koseikan, Kase-machi Nakabaru 400, Saga, 840-8571, Japan. sugimori-hiroshi@kyudai.jp.
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Sugimori
mesh_terms: D000784:Aortic Dissection / Q000150:complications / Q000000981:diagnostic imaging*; D002536:Cerebral Arteries / Q000473:pathology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000379:methods*; D002532:Intracranial Aneurysm / Q000150:complications / Q000000981:diagnostic imaging*; D008875:Middle Aged; D059906:Neuroimaging / Q000379:methods*; D020521:Stroke / Q000209:etiology* / Q000473:pathology
keywords: Intracranial; MRI; PICA dissection