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Condition: Thrombosis
Procedure: CT Scan

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Total 708 results found since Jan 2013.

Emergent Angioplasty and Stent Placement Recanalization Without Thrombolysis in Acute Middle Cerebral Artery Occlusions
This study evaluated the feasibility, efficacy, and safety of intracranial artery recanalization for acute middle cerebral artery (MCA) occlusion using emergent angioplasty and stent placement without thrombolysis. All patients from a retrospectively collected database who met the inclusion criteria and were treated with an intracranial stent for acute MCA occlusion were included. Treatment comprised angioplasty and stenting without interventional thrombolytic therapy. Recanalization was assessed by angiography immediately after stent placement based on the Thrombolysis in Myocardial Infarction (TIMI) score. Complications ...
Source: Journal of Stroke and Cerebrovascular Diseases - December 12, 2011 Category: Neurology Authors: Xin-Bin Guo, Lai-Jun Song, Sheng Guan Tags: Original Articles Source Type: research

Can Shape Analysis Differentiate Free-floating Internal Carotid Artery Thrombus from Atherosclerotic Plaque in Patients Evaluated with CTA for Stroke or Transient Ischemic Attack?
Conclusions: We identified five quantitative shape descriptors of carotid FFT. This shape “signature” shows potential for supplementing conventional lesion characterization in cases of suspected FFT.
Source: Academic Radiology - February 8, 2014 Category: Radiology Authors: Rebecca E. Thornhill, Cheemun Lum, Arash Jaberi, Pawel Stefanski, Carlos H. Torres, Franco Momoli, William Petrcich, Dar Dowlatshahi Tags: Original Investigations Source Type: research

In silico Study of Low-Frequency Transcranial Ultrasound Fields in Acute Ischemic Stroke Patients
Abstract: Ultrasound in the sub-megahertz range enhances thrombolysis and may be applied transcranially to ischemic stroke patients. The consistency of transcranial insonification needs to be evaluated. Acoustic and thermal simulations based on computed-tomography (CT) scans of 20 patients were performed. An unfocused 120-kHz transducer allowed homogeneous insonification of the thrombus, and positioning based on external landmarks performed similarly to an optimized placement based on CT data. With a weakly focused 500-kHz transducer, the landmark-based positioning underperformed. The predicted inter-patient variation of i...
Source: Ultrasound in Medicine and Biology - March 17, 2014 Category: Radiology Authors: Guillaume Bouchoux, Ravishankar Shivashankar, Todd A. Abruzzo, Christy K. Holland Tags: Original Contributions Source Type: research

Hyperdense Artery Signs—Potential Value in Cerebellar Stroke
I read with great interest the article “Factors Associated with the Misdiagnosis of Cerebellar Infarction” by Masuda et al. Cerebellar strokes are of clinical importance because they can have devastating consequences such as herniation, death, and coma. Furthermore, if diagnosed in time, thrombolytic therapy may be beneficial in selected cases. In their article, the authors state that 75% of the misdiagnosed patients were initially screened with nonenhanced cranial computed tomography (NECCT) that yielded normal results. I would like to present a case that demonstrates a possibility to increase the diagnostic accuracy of NECCT.
Source: Journal of Stroke and Cerebrovascular Diseases - March 5, 2014 Category: Neurology Authors: Ulf R. Jensen-Kondering Tags: Letter to the Editor Source Type: research

Subclavian Stump Syndrome Causing a Posterior Circulation Stroke after Thoracic Endovascular Aneurysm Repair (TEVAR) with Adjunctive Carotid to Subclavian Bypass and Endovascular Embolization of the Left Subclavian Artery
Conclusions: Consideration should be given to ligating the subclavian artery immediately proximal to the vertebral artery origin when performing adjunctive carotid subclavian bypass during TEVAR. If this is not done, surveillance computed tomography scans should monitor for the development of propagating thrombus in the subclavian stump.
Source: Annals of Vascular Surgery - February 6, 2014 Category: Surgery Authors: Ritesh Patel, Carl Muthu, Kwat Huat Goh Tags: Case Report Abstracts Source Type: research

Acute Stroke After Carotid Endarterectomy: Time for a Paradigm Shift? Multicenter Experience With Emergent Carotid Artery Stenting With or Without Intracranial Tandem Occlusion Thrombectomy
CONCLUSION: Emergent endovascular evaluation in the setting of acute post--carotid endarterectomy thrombosis is a safe and timely treatment option, with the benefit of detecting and treating embolic intracranial lesions. Immediate angiography and intervention in this rare surgical complication show promising initial results. ABBREVIATIONS: CAS, carotid artery stenting CEA, carotid endarterectomy ICA, internal carotid artery NASCET, North American Symptomatic Carotid Endarterectomy Trial
Source: Neurosurgery - March 19, 2015 Category: Neurosurgery Tags: Research-Human-Clinical Studies Source Type: research

Occult Anterograde Flow Is an Under-Recognized but Crucial Predictor of Early Recanalization With Intravenous Tissue-Type Plasminogen Activator Clinical Sciences
Conclusions— Occult anterograde flow through thrombus can be assessed by perfusion computed tomography T0 maps and predicts early recanalization with intravenous tissue-type plasminogen activator robustly.
Source: Stroke - March 23, 2015 Category: Neurology Authors: Ahn, S. H., d'Esterre, C. D., Qazi, E. M., Najm, M., Rubiera, M., Fainardi, E., Hill, M. D., Goyal, M., Demchuk, A. M., Lee, T. Y., Menon, B. K. Tags: Fibrinolysis, Computerized tomography and Magnetic Resonance Imaging, Thrombolysis Clinical Sciences Source Type: research

"Reverse Locked-in Syndrome": A rare presentation after endovascular recanalization of top-of-the-basilar artery occlusion (P4.302)
CONCLUSION: Complete opthalmoplegia, bilateral ptosis, and arreactive mydriasis without appendicular motor dysfunction, a "reverse locked-in" state, is a rare presentation after ischemic stroke involving the paramedian midbrain tegmentum. This syndrome is the opposite of locked-in syndrome, which is cause by ventral pontine infarction. Timely endovascular thrombectomy, even when a patient presents in coma, may offer dramatic recovery with good functional outcome.Disclosure: Dr. Raibagkar has nothing to disclose. Dr. Kim has nothing to disclose. Dr. Kaplan has nothing to disclose. Dr. Chavali has nothing to disclose. Dr. Ni...
Source: Neurology - April 8, 2015 Category: Neurology Authors: Raibagkar, P., Kim, J., Kaplan, T., Chavali, R., Nitka, M., Chou, S., Edlow, B. Tags: Cerebrovascular Disease and Interventional Neurology: Acute Interventional Treatment for Ischemic Stroke Source Type: research

Effect of prehospital notification on acute stroke care: a multicenter study
The sooner thrombolytic therapy is given to acute ischemic stroke patients, the better the outcome. Prehospital notification may shorten the time between hospital arrival and brain computed tomography (door-to...
Source: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine - April 27, 2016 Category: Emergency Medicine Authors: Ming-Ju Hsieh, Sung-Chun Tang, Wen-Chu Chiang, Li-Kai Tsai, Jiann-Shing Jeng and Matthew Huei-Ming Ma Source Type: research

Thrombolytic removal of intraventricular haemorrhage in treatment of severe stroke: results of the randomised, multicentre, multiregion, placebo-controlled CLEAR III trial
This study is registered with ClinicalTrials.gov, NCT00784134. Findings Between Sept 18, 2009, and Jan 13, 2015, 500 patients were randomised: 249 to the alteplase group and 251 to the saline group. 180-day follow-up data were available for analysis from 246 of 249 participants in the alteplase group and 245 of 251 participants in the placebo group. The primary efficacy outcome was similar in each group (good outcome in alteplase group 48% vs saline 45%; risk ratio [RR] 1·06 [95% CI 0·88–1·28; p=0·554]). A difference of 3·5% (RR 1·08 [95% CI 0·90–1·29], p=0·420) was found after adjustment for intraventricular ...
Source: The Lancet - January 9, 2017 Category: Journals (General) Source Type: research

Successful recanalization in acute basilar artery occlusion treated with endovascular therapy is independent of thrombus length
Conclusions Successful recanalization does not depend on thrombus length in patients with BAO treated with EVT. Recanalization can therefore be achieved despite high clot burden. Additionally, a high density of thrombi was a strong predictor of a favorable outcome.
Source: Journal of NeuroInterventional Surgery - October 13, 2017 Category: Neurosurgery Authors: Shu, L., Riedel, C., Meyne, J., Jansen, O., Jensen-Kondering, U. Tags: Ischemic stroke Source Type: research

Erythrocyte-Rich Thrombus Is Associated with Reduced Number of Maneuvers and Procedure Time in Patients with Acute Ischemic Stroke Undergoing Mechanical Thrombectomy
Conclusions: In this study, erythrocyte-rich thrombus was associated with noncardioembolic etiology, higher thrombus density, and reduced procedure time.Cerebrovasc Dis Extra 2018;8:39 –49
Source: Cerebrovascular Diseases Extra - January 15, 2018 Category: Neurology Source Type: research

Thrombosed Aneurysm of the Posterior Inferior Cerebellar Artery and Lateral Medullary Ischemia as the Initial Presentation of Polyarteritis Nodosa: Case Report and Literature Review
A 27-year-old woman with a previously undiagnosed polyarteritis nodosa (PAN) developed lateral medullary stroke related to a thrombosed posterior inferior cerebellar artery (PICA)-origin aneurysm. A concurrent thrombosis of the PICA was identified on high-resolution 3-dimensional CUBE T1 magnetic resonance imaging sequence at 3  T. Body computed tomography angiography, magnetic resonance imaging–magnetic resonance angiography, and digital angiography revealed multiple tiny aneurysms of the visceral arteries and bilateral kidney infarcts.
Source: Journal of Stroke and Cerebrovascular Diseases - March 27, 2018 Category: Neurology Authors: Monique Boukobza, Antoine Dossier, Jean-Pierre Laissy Tags: Case Studies Source Type: research

Varicella-Associated Stroke
A previously healthy, unimmunized 11-month-old boy presented with acute right-sided weakness. On the day of presentation, his mother noted that his right arm and leg seemed to be weak when she woke him from his usual afternoon nap. Evaluation at an urgent care center confirmed right-sided facial weakness, decreased strength and movement of his right upper and lower extremities, and a lack of right-sided support in a sitting position. Computed tomography of the head without contrast was normal. He was transferred to a regional care center where head magnetic resonance imaging and magnetic resonance angiography demonstrated ...
Source: The Journal of Pediatrics - April 19, 2018 Category: Pediatrics Authors: Surabhi B. Vora, Catherine Amlie-Lefond, Francisco A. Perez, Ann J. Melvin Tags: Insights and Images Source Type: research

Thrombosed Aneurysm of the Posterior Inferior Cerebellar Artery and Lateral Medullary Ischemia as the Initial Presentation of Polyarteritis Nodosa: Case Report and Literature Review
A 27-year-old woman with a previously undiagnosed polyarteritis nodosa (PAN) developed lateral medullary stroke related to a thrombosed posterior inferior cerebellar artery (PICA)-origin aneurysm. A concurrent thrombosis of the PICA was identified on high-resolution 3-dimensional CUBE T1 magnetic resonance imaging sequence at 3  T. Body computed tomography angiography, magnetic resonance imaging–magnetic resonance angiography, and digital angiography revealed multiple tiny aneurysms of the visceral arteries and bilateral kidney infarcts.
Source: Journal of Stroke and Cerebrovascular Diseases - March 27, 2018 Category: Neurology Authors: Monique Boukobza, Antoine Dossier, Jean-Pierre Laissy Tags: Case Studies Source Type: research