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Source: Journal of Stroke and Cerebrovascular Diseases
Procedure: CT Scan
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Total 317 results found since Jan 2013.
Clinical and Radiological Difficulties to Detect Isolated MCA Dissection before Intravenous tPA Therapy
A 64-year-old woman was admitted to our hospital 48 minutes after sudden onset of dysphasia and right hemiplegia. Head computed tomography revealed small infarcts in the left putamen and 4-dimensional computed tomography angiography depicted high-degree stenosis in the left middle cerebral artery and delayed filling of the contrast media in the left middle cerebral artery territory. The patient underwent intravenous tissue plasminogen activator treatment. On day 5 of hospitalization, the patient underwent conventional cerebral angiography, revealing internal carotid artery to middle cerebral artery dissection.
Source: Journal of Stroke and Cerebrovascular Diseases - September 13, 2019 Category: Neurology Authors: Kazuhiro Yoshioka, Takahisa Mori Tags: Case Report Source Type: research
Carotid Webs in Cryptogenic Ischemic Strokes: A Matched Case-Control Study
Background: Young individuals with symptomatic carotid webs may be predisposed to ischemic strokes. However, evidence remains scarce. This investigation reports the frequency of carotid webs among patients with cryptogenic strokes compared to a control group. Methods: Consecutive cryptogenic ischemic strokes and trauma patients were identified. Additional inclusion criteria required age 18-60 years and availability of head/neck computed tomography (CT) angiography. CT angiogram (CTA) neck images were evaluated independently by 2 fellowshiptrained specialists.
Source: Journal of Stroke and Cerebrovascular Diseases - September 25, 2019 Category: Neurology Authors: Song J. Kim, Jason W. Allen, Mehdi Bouslama, Fadi Nahab, Michael R. Frankel, Raul G. Nogueira, Diogo C. Haussen Source Type: research
Successful Cesarean Section Deliveries in a Patient with a History of Developmental Venous Anomaly-Induced Hemorrhage
While hemorrhage can occur because of developmental venous anomalies (DVAs), there is no established opinion concerning their association with pregnancy and childbirth. In the present report, we discuss the case of a now 39-year-old woman with DVA in whom pregnancy and childbirth were successful. When she was 28, she experienced disturbance of consciousness and paralysis on the left side of the body, and brain computed tomography revealed cerebral hemorrhage coupled with subarachnoid hemorrhage.
Source: Journal of Stroke and Cerebrovascular Diseases - October 25, 2019 Category: Neurology Authors: Yuko Nonaka, Shoji Yasuda, Nobutoshi Kumagai, Yoshinori Kakino, Jiro Nakagawa, Katsunobu Takenaka Tags: Case Report Source Type: research
Incidence of Unreliable Automated Computed Tomography Perfusion Maps
Despite the increasing national adoption of automated computed tomography perfusion (CTP) to select thrombectomy patients 6 hours after last known well, reliability issues have been anecdotally reported. Unreliable diagnostic tests add time and confusion to a process that requires efficiency. Our study aims to critically assess an automated CTP program in a contemporary cohort of patients presenting with large vessel occlusion (LVO) in the extended time window by evaluating the rate of unreliable automated CTP maps and whether this influences clinical outcomes.
Source: Journal of Stroke and Cerebrovascular Diseases - October 30, 2019 Category: Neurology Authors: Zachary Bulwa, Hormuzdiyar Dasenbrock, Nicholas Osteraas, Laurel Cherian, R. Webster Crowley, Michael Chen Source Type: research
Hypoglossal Nerve Palsy due to Compression by a Persistent Primitive Hypoglossal Artery: Case Report
A 51-year-old Japanese woman was admitted to our hospital because of speech difficulty following severe headache. Neurological examination showed dysarthria and tongue weakness on the right side, indicating right hypoglossal nerve palsy. Needle electromyography of the right side of the tongue showed fibrillation potentials. Magnetic resonance angiography and computed tomography angiography revealed a right, persistent, primitive hypoglossal artery (PPHA) that met Lie's diagnostic criteria. Digital subtraction angiography showed an extended PPHA with irregular caliber in the portion running through the right hypoglossal canal.
Source: Journal of Stroke and Cerebrovascular Diseases - December 11, 2019 Category: Neurology Authors: Hiroki Hikichi, Tatsuya Ueno, Masatoshi Iwamura, Haruo Nishijima, Akira Arai, Chieko Suzuki, Hiroshi Midorikawa, Jin-ichi Nunomura, Masahiko Tomiyama Tags: Case Report Source Type: research
Carotid Revascularization and Its Effect on Cognitive Function: A Prospective Nonrandomized Multicenter Clinical Study
Background: There is conflicting data on the effect of carotid revascularization on cognitive function. Objective: To examine cerebral blood flow and cognitive function after carotid revascularization. Methods: Patients with unilateral, asymptomatic hemodynamically significant carotid artery stenosis (80% by computed tomography angiography or magnetic resonance angiography) were eligible. Cerebral blood flow was measured preoperatively and 1 month postoperatively using quantitative phase contrast magnetic resonance angiography.
Source: Journal of Stroke and Cerebrovascular Diseases - February 23, 2020 Category: Neurology Authors: Jenna L. Whooley, Brandon C. David, Henry H Woo, Brian L. Hoh, Kevin B. Raftery, Adnan Hussain Siddiqui, Michael Westerveld, Sepideh Amin-Hanjani, Zoher Ghogawala Source Type: research
Multiple Cerebral Hemorrhages With Microbleeds in Intravascular Large B-Cell Lymphoma
This is an extremely rare reported case of intravascular large B-cell lymphoma (IVLBCL) presenting with acute hemorrhages and numerous microbleeds. An 80-year-old man presented with consciousness disturbances after convulsion. Computed tomography revealed multiple hemorrhages, and susceptibility-weighted imaging (SWI) demonstrated numerous microbleeds. Brain biopsy showed CD20-positive cells in small vessels; accordingly, IVLBCL was diagnosed. IVLBCL should be considered as a differential diagnosis in multiple cerebral hemorrhages and microbleeds.
Source: Journal of Stroke and Cerebrovascular Diseases - April 1, 2020 Category: Neurology Authors: Masamune Kimura, Satoru Fujiwara, Atsushi Tanaka, Yoshihiro Omura, Daisuke Yamashita, Takuya Hinoda, Nobuyuki Sakai, Nobuo Kohara Tags: Case Report Source Type: research
A Case of Delayed Intraparenchymal Hemorrhage Due to Hyperperfusion After Flow Diverter Treatment
We present the case of a 54-year-old woman with a partially thrombosed large internal carotid artery aneurysm. She presented intraparenchymal hemorrhage in the right parietal lobe three days after the successful FD treatment. We performed endoscopic hematoma removal, and then her consciousness disturbance was fully recovered. IMP single-photon emission computed tomography showed significant increase of cerebral blood flow in the right hemisphere.
Source: Journal of Stroke and Cerebrovascular Diseases - May 13, 2020 Category: Neurology Authors: Takaaki Itazu, Yukiko Enomoto, Keita Yamauchi, Yusuke Egashira, Toru Iwama Tags: Case Report Source Type: research
A novel model for predicting the outcome of intracerebral hemorrhage: Based on 1186 Patients
To establish a model for predicting the outcome according to the clinical and computed tomography(CT) image data of patients with intracerebral hemorrhage(ICH).
Source: Journal of Stroke and Cerebrovascular Diseases - July 15, 2020 Category: Neurology Authors: Xi-wu He, Ming-di Chen, Chao-nan Du, Kai Zhao, Ming-fei Yang, Qing-fang Ma Source Type: research
Carotid Calcium Volume and Stenosis after Stent Implantation
Internal carotid artery (ICA) stenosis could be treated with stent placement. It was hypothesized that calcium amount could be predictive of vessel stenosis after stent placement. We utilised computed tomography (CT) angiography to quantify volume of calcium material in bulbar ICA.
Source: Journal of Stroke and Cerebrovascular Diseases - July 15, 2020 Category: Neurology Authors: Johannes Sebastian Mutzenbach, Lukas Machegger, Luis Rafael Moscote-Salazar, Monika Killer-Oberpfalzer, Erasmia M üller-Thies-Broussalis, Slaven Pikija Source Type: research
Detection of impaired cerebrovascular reactivity in patients with chronic cerebral ischemia using whole-brain 7T MRA
We examined whether whole-brain magnetic resonance angiography (MRA) at 7T could non-invasively detect impaired CVR in patients with chronic cerebral ischemia by demonstrating the leptomeningeal collaterals (LMCs).
Source: Journal of Stroke and Cerebrovascular Diseases - August 15, 2020 Category: Neurology Authors: Ikuko Uwano, Hiroyuki Kameda, Taisuke Harada, Masakazu Kobayashi, Wataru Yanagihara, Kengo Setta, Kuniaki Ogasawara, Kunihiro Yoshioka, Fumio Yamashita, Futoshi Mori, Tsuyoshi Matsuda, Makoto Sasaki Source Type: research
Detection of ischemic changes on baseline multimodal computed tomography: expert reading vs. Brainomix and RAPID software
The aim of the study was to compare the assessment of ischemic changes by expert reading and available automated software for non-contrast CT (NCCT) and CT perfusion on baseline multimodal imaging and demonstrate the accuracy for the final infarct prediction.
Source: Journal of Stroke and Cerebrovascular Diseases - August 15, 2020 Category: Neurology Authors: Petra Cimflova, Ondrej Volny, Prof. Robert Mikulik, Bohdan Tyshchenko, Silvie Belaskova, Jan Vinklarek, Vladimir Cervenak, Tomas Krivka, Assoc. Prof. Jiri Vanicek, Prof. Antonin Krajina Source Type: research
Subarachnoid Hemorrhage Caused by Ruptured Aneurysm of the Artery of Adamkiewicz: a Case Report
A 66-year-old man presented with a 6-day history of progressive posterior cervical pain that included lower back pain and fever. Neurological examinations revealed neck stiffness. Computed tomography demonstrated convexity subarachnoid hemorrhage. A spinal T2-weighted image revealed a hypointense signal lesion with contrast enhancement of the intradural extramedullary space at Th12 –L1. Digital subtraction angiography showed a fusiform aneurysm with a 10 mm diameter in the artery of Adamkiewicz. We diagnosed the patient's condition as a ruptured aneurysm of the artery of Adamkiewicz.
Source: Journal of Stroke and Cerebrovascular Diseases - August 14, 2020 Category: Neurology Authors: Takashi Nakamura, Tatsuya Ueno, Akira Arai, Masatoshi Iwamura, Hiroshi Midorikawa, Kensuke Murakami, Masahiko Tomiyama Tags: Case Report Source Type: research
Attempt to delineate occluded arteries with initial plain computed tomography in acute cerebral arterial occlusion
Several randomized controlled trials have investigated the effects of endovascular thrombectomy using stent retrievers for acute cerebral arterial occlusion.1 –4 Endovascular thrombectomies have generally proceeded without anatomical information regarding the affected intracranial arteries, and this could cause complications such as vessel perforation.5–7 Several recent studies have visualized occluded arteries using various imaging modalities, includ ing three-dimensional computed tomography (CT) angiography,8 magnetic resonance imaging (MRI),9,10 and cone-beam CT.
Source: Journal of Stroke and Cerebrovascular Diseases - October 22, 2020 Category: Neurology Authors: Jouji Kokuzawa, Yasuhiko Kaku, Nozomi Sasaki, Kiyomitsu Kano, Naoki Oka, Akihide Matsuda, Yousuke Sasaki Source Type: research
Acute Internal Carotid Artery Occlusion Long after Carotid Revascularization by Vein Graft
We report the case of a 27-year-old woman with acute internal carotid artery occlusion long after carotid artery revascularization by vein graft. She presented with sudden unconsciousness and left hemiparesis. Her right carotid artery was revascularized with an ipsilateral internal jugular vein graft during a carotid body tumor resection 10 years ago. Computed tomography angiography revealed a right internal carotid artery terminus occlusion. Intravenous rt-PA and mechanical thrombectomy were performed, resulting in successful recanalization.
Source: Journal of Stroke and Cerebrovascular Diseases - October 20, 2020 Category: Neurology Authors: Ryota Tamura, Nobuyuki Ohara, Yasutaka Murakami, Hirotoshi Imamura, Nobuyuki Sakai, Nobuo Kohara Tags: Case Report Source Type: research
