52,086 results match your criteria cerebral angiography

Emergency endoscopic surgery for pituitary apoplexy presenting as cerebral infarction in a limited resources condition: A case report.

Int J Surg Case Rep 2021 May 26;83:106015. Epub 2021 May 26.

Department of Surgery, Hanoi Medical University, Hanoi, Viet Nam; Department of Neurosurgery I, Viet Duc University Hospital, Hanoi, Viet Nam. Electronic address:

Introduction And Importance: Pituitary apoplexy is defined as a sudden onset of neurologic deficit due to infarction or hemorrhage of the pituitary tumor. We report a case of emergency endoscopic surgery for pituitary apoplexy presenting as cerebral infarction due to ICA compression in a limited resources condition.

Case Presentation: A 38-year-old female presented with acute onset of severe headache, decreased level of consciousness, decreased visual acuity bilaterally, aphasia, and right hemiparesis. Read More

View Article and Full-Text PDF

One-Pot Synthesis of Carboxymethyl-Dextran Coated Iron Oxide Nanoparticles (CION) for Preclinical fMRI and MRA Applications.

Neuroimage 2021 Jun 8:118213. Epub 2021 Jun 8.

Center for Animal MRI, University of North Carolina, Chapel Hill, NC, USA; Biomedical Research Imaging Center, University of North Carolina, Chapel Hill, NC, USA; Department of Neurology, University of North Carolina, Chapel Hill, NC, USA. Electronic address:

Superparamagnetic iron-oxide nanoparticles are robust contrast agents for magnetic resonance imaging (MRI) and has shown promise for sensitive structural and functional mapping of the cerebral blood volume (CBV) when administered intravenously. To date, many CBV-MRI studies are conducted with Feraheme, manufactured for the treatment of iron-deficiency. Unfortunately, Feraheme is currently not available outside the United States due to commercial and regulatory constraints, making the CBV-MRI method either inaccessible or very costly to achieve. Read More

View Article and Full-Text PDF

Free-floating thrombus of the aorta: 3 case reports.

Surg Case Rep 2021 Jun 10;7(1):141. Epub 2021 Jun 10.

Department of Cardiovascular Surgery, Hiratsuka City Hospital, 1-19-1 Minamihara, Hiratsuka City, Kanagawa, 254-0065, Japan.

Background: Idiopathic free-floating thrombus (FFT) of the aorta is a rare occurrence, but it can lead to catastrophic consequences. The initial symptoms are typically cerebral or peripheral embolisms. Surgical thrombectomy and thrombolysis are two primary treatments for FFT. Read More

View Article and Full-Text PDF

Carotid Atherosclerotic Calcification Characteristics Relate to Post-stroke Cognitive Impairment.

Front Aging Neurosci 2021 25;13:682908. Epub 2021 May 25.

Department of Neurology, Huashan Hospital, Fudan University, Shanghai, China.

Together with cerebral small vessel disease (CSVD), large vessel atherosclerosis is considered to be an equally important risk factor in the progression of vascular cognitive impairment. This article aims to investigate whether carotid atherosclerotic calcification is associated with the increased risk of post-stroke cognitive impairment (PSCI). A total of 128 patients (mean age: 62. Read More

View Article and Full-Text PDF

Influence of cardiovascular risk-factors on morphological changes of cerebral arteries in healthy adults across the life span.

Sci Rep 2021 Jun 10;11(1):12236. Epub 2021 Jun 10.

Department of Radiology, Faculty of Medicine, University of Calgary, Calgary, Canada.

Cerebral artery morphological alterations have been associated with several cerebrovascular and neurological diseases, whereas these structures are known to be highly variable among healthy individuals. To date, the knowledge about the influence of cardiovascular risk factors on the morphology of cerebral arteries is rather limited. The aim of this work was to investigate the impact of cardiovascular risk factors on the regional cerebroarterial radius and density. Read More

View Article and Full-Text PDF

Serial magnetic resonance imaging changes of pseudotumor lesions in retinal vasculopathy with cerebral leukoencephalopathy and systemic manifestations: a case report.

BMC Neurol 2021 Jun 9;21(1):219. Epub 2021 Jun 9.

Department of Neurology, West China Hospital, Sichuan University, No. 37 Guo Xue Xiang, 610041, Chengdu, China.

Background: Retinal vasculopathy with cerebral leukoencephalopathy and systemic manifestations (RVCL-S) is an adult-onset rare monogenic microvasculopathy. Its typical neuroimaging features are punctate white matter lesions or pseudotumor alterations. RVCL-S is often under-recognized and misdiagnosed because of its rarity and similar imaging manifestations to multiple sclerosis or brain malignant mass. Read More

View Article and Full-Text PDF

Matrix metallopeptidase 9 and placental growth factor may correlate with collateral status based on whole-brain perfusion combined with multiphase computed tomography angiography.

Neurol Res 2021 Jun 10:1-8. Epub 2021 Jun 10.

Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.

Objective: The aim of this study was to find out the relationship between serum biomarkers and cerebral collateral status in acute ischemic stroke with cerebral large artery atherosclerosis.

Methods: We enrolled patients with ischemic stroke due to large artery atherosclerosis within 7 days of symptom onset, age 18-80 years, from August 2016 to December 2017. Twelve biomarkers representing different pathophysiological mechanisms were tested after admission. Read More

View Article and Full-Text PDF

Retrospective analysis of intracranial aneurysms after flow diverter treatment including color-coded imaging (syngo iFlow) as a predictor of aneurysm occlusion.

Interv Neuroradiol 2021 Jun 9:15910199211024056. Epub 2021 Jun 9.

Departments of Neuroradiology, Saarland University Hospital, Homburg/Saar, Germany.

Purpose: Flow Diverters (FD) have immensely extended the treatment of cerebral aneurysms in the past years. Complete aneurysm occlusion is a process that often takes a certain amount of time and is usually difficult to predict. Our aim was to investigate different syngo iFlow parameters in order to predict aneurysm occlusion. Read More

View Article and Full-Text PDF

Thrombectomy for ischemic stroke with large vessel occlusion and concomitant subarachnoid hemorrhage.

J Thromb Thrombolysis 2021 Jun 8. Epub 2021 Jun 8.

Department of Neurology and Stroke Unit, Azienda Ospedaliera Universitaria Integrata Verona, Verona, Italy.

To report our experience in treating one patient with nontraumatic subarachnoid hemorrhage (SAH) and concurrent acute ischemic stroke (AIS) due to large vessels occlusion (LVO). A man in his 50 s presented with acute right hemiparesis and aphasia. Brain CT showed a SAH in the left central sulcus; CT-angiography revealed a tandem occlusion of the left internal carotid artery and homolateral middle cerebral artery. Read More

View Article and Full-Text PDF

Neurological complications in COVID-19 - a diagnostic challenge.

J Med Life 2021 Mar-Apr;14(2):216-224

Neurology Department, Cluj-Napoca County Emergency Hospital, Cluj-Napoca, Romania.

With the exponential growth of COVID-19 cases, the neurological complications reported during or after the infection became more common. There is limited knowledge regarding the pathophysiological mechanisms that are responsible for these complications. Recent data provides compelling evidence for the neurotropic nature of SARS-CoV-2, based on neurological manifestations reported during the current pandemic, as well as on previous experience with other coronaviruses. Read More

View Article and Full-Text PDF

Automated Prediction of Ischemic Brain Tissue Fate from Multiphase Computed Tomographic Angiography in Patients with Acute Ischemic Stroke Using Machine Learning.

J Stroke 2021 May 31;23(2):234-243. Epub 2021 May 31.

Calgary Stroke Program, Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada.

Background And Purpose: Multiphase computed tomographic angiography (mCTA) provides time variant images of pial vasculature supplying brain in patients with acute ischemic stroke (AIS). To develop a machine learning (ML) technique to predict tissue perfusion and infarction from mCTA source images.

Methods: 284 patients with AIS were included from the Precise and Rapid assessment of collaterals using multi-phase CTA in the triage of patients with acute ischemic stroke for Intra-artery Therapy (Prove-IT) study. Read More

View Article and Full-Text PDF

[Surgical treatment of Stanford type A aortic dissection after thoracic endovascular aortic repair].

Zhonghua Wai Ke Za Zhi 2021 Jun;59(6):520-524

Department of Cardiovascular Surgery, Henan Chest Hospital, Zhengzhou 450001, China.

To examine the surgical treatment of Stanford type A aortic dissection (type A dissection) after thoracic endovascular aortic repair (TEVAR). The data of 58 patients with reoccurrence of type A dissection after TEVAR admitted into the Department of Cardiovascular Surgery, Henan Chest Hospital from February 2012 to January 2020 were analyzed retrospectively. There were 40 males and 18 females, aged (57. Read More

View Article and Full-Text PDF

Ocular Trauma with Ophthalmic Artery Injury as a Rare Cause of Subarachnoid Hemorrhage: a Case Report and Review of the Literature.

J Neurol Surg A Cent Eur Neurosurg 2021 Jun 7. Epub 2021 Jun 7.

Department of Neurosurgery, Universitätsklinikum Aachen, RWTH Aachen University, Aachen, Germany.

Background And Importance:  Traumatic avulsion of the ophthalmic artery is a rare cause of subarachnoid hemorrhage (SAH). In this case, a relative minor fall with isolated ocular trauma caused bulbar dislocation and rupture of the ophthalmic artery in its intracranial segment resulting in subarachnoid bleeding.

Clinical Presentation:  In a female patient in her 70s, a direct penetrating trauma to the orbit by a door handle resulted in basal SAH with blood dispersion into both Sylvian fissures. Read More

View Article and Full-Text PDF

Imaging retinal microvascular manifestations of carotid artery disease in older adults: from diagnosis of ocular complications to understanding microvascular contributions to cognitive impairment.

Geroscience 2021 Jun 8. Epub 2021 Jun 8.

Department of Ophthalmology, Semmelweis University, 39 Mária Street, 1085, Budapest, Hungary.

Carotid artery stenosis (CAS) is a consequence of systemic atherosclerotic disease affecting the aging populations of the Western world. CAS is frequently associated with cognitive impairment. However, the mechanisms contributing to the development of vascular cognitive impairment (VCI) associated with CAS are multifaceted and not fully understood. Read More

View Article and Full-Text PDF

Microsurgical Clip Reconstruction of a Ruptured Internal Carotid Artery Terminus Blister Aneurysm Using a Reverse Picket Fence Technique.

Oper Neurosurg (Hagerstown) 2021 Jun 7. Epub 2021 Jun 7.

Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.

Background: Blister aneurysms are rare, technically challenging lesions that are typically ill defined and arise at nonbranch points of arteries.

Objective: To describe the microsurgical treatment of a ruptured blister aneurysm at the internal carotid artery (ICA) terminus using the reverse picket fence clipping technique.

Methods: The patient was a 60-yr-old male. Read More

View Article and Full-Text PDF

Transition from proximal to distal radial access for diagnostic cerebral angiography: Learning curve analysis.

World Neurosurg 2021 Jun 4. Epub 2021 Jun 4.

Department of Neurosurgery, State University of New York Upstate Medical University, Syracuse, NY, USA.

Objective: Distal transradial access (dTRA) has several advantages compared to proximal transradial access (pTRA) for cerebral angiography. The learning curve for transitioning from pTRA to dTRA has not been described.

Methods: Retrospective analysis of the first 75 diagnostic cerebral angiograms performed with dTRA by a single operator was performed. Read More

View Article and Full-Text PDF

Treatment of a Giant Thrombotic M1 Segment Middle Cerebral Artery Aneurysm With Radial Artery Bypass and Distal Occlusion to Create a "Blind Sac" Following Endovascular Failure: 2-Dimensional Operative Video.

Oper Neurosurg (Hagerstown) 2021 Jun 7. Epub 2021 Jun 7.

Department of Neurosurgery, Emory University School of Medicine, Atlanta, Georgia, USA.

The case is of a 36-yr-old male with a previously coiled aneurysm arising from the proximal M1 segment of the middle cerebral artery (MCA) just beyond the internal carotid artery (ICA) bifurcation who presented to our institution with subjective left hemiparesis, headache, and vomiting. Physical exam revealed a left facial droop, but neurological exam was otherwise normal, including full motor strength. Neuroimaging showed a large partially thrombosed aneurysm recurrence, measuring 5. Read More

View Article and Full-Text PDF

WSO EXPRESS: Thrombolysis outcomes according to arterial characteristics of acute ischemic stroke by alteplase dose and blood pressure target.

Int J Stroke 2021 Jun 7:17474930211025436. Epub 2021 Jun 7.

The George Institute for Global Health, Sydney, Australia.

Background: We explored the influence of low-dose intravenous alteplase and intensive blood pressure (BP) lowering on outcomes of acute ischemic stroke (AIS) according to status/location of vascular obstruction in participants of the Enhanced Control of Hypertension and Thrombolysis Stroke Study (ENCHANTED).

Methods: ENCHANTED was a multicenter, quasi-factorial, randomized trial to determine efficacy and safety of low- versus standard-dose intravenous alteplase and intensive- versus guideline-recommended BP lowering in AIS patients. In those who had baseline CT or MRI angiography, the degree of vascular occlusion was grouped according to being no (NVO), medium (MVO), or large (LVO). Read More

View Article and Full-Text PDF

Kawasaki Disease Complicated by Late-Onset Fatal Cerebral Infarction: A Case Report and Literature Review.

Front Pediatr 2021 19;9:598867. Epub 2021 May 19.

Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education Chengdu, Sichuan University, Chengdu, China.

Cerebral infarction is a rare neurological complication of Kawasaki disease (KD) and occurs in the acute or subacute stage. There have been no reported cases of late-onset fatal cerebral infarction presenting over 1 year after the onset of KD. A 5-month-old male patient with KD received timely intravenous immunoglobulin therapy; however, extensive coronary artery aneurysms (CAA) and coronary artery thrombosis (CAT) developed 1 month later. Read More

View Article and Full-Text PDF

Isolated Unilateral Hypoglossal Nerve Palsy Caused by Internal Carotid Artery Loop.

Cureus 2021 May 3;13(5):e14819. Epub 2021 May 3.

Neurology Department, Anadolu Medical Center, Kocaeli, TUR.

Isolated unilateral hypoglossal nerve (HN) palsy caused by vascular compression is a rare condition. We report a case of a 42-year-old male, presenting with tongue paresis and unilateral atrophy of the tongue due to an internal carotid artery (ICA) loop. The compression of HN by ICA loop and concomitant wall irregularities of the loop segment were observed in magnetic resonance imaging and digital subtraction angiography (DSA). Read More

View Article and Full-Text PDF

[A Case of Bilateral Carotid Injury Caused by Vinyl Umbrella Penetration Successfully Treated with Endovascular Therapy].

No Shinkei Geka 2021 May;49(3):677-682

Department of Neurosurgery, St. Luke's International Hospital.

Here, we have reported a case pertaining to a 59-year-old man with bilateral traumatic carotid artery injury caused by vinyl umbrella penetration who was successfully treated. The patient fell from the stairs while holding an umbrella, which penetrated his neck. On admission, the patient was in a comatose state and the umbrella had been removed. Read More

View Article and Full-Text PDF

The implications of magnetic resonance angiography artifacts caused by different types of intracranial flow diverters.

J Cardiovasc Magn Reson 2021 Jun 7;23(1):69. Epub 2021 Jun 7.

Department of Radiology, Hacettepe University Hospitals, Ankara, Turkey.

Background: Serial cerebral angiographic imaging is necessary to ensure cerebral aneurysm occlusion after flow diverter placement. Time-of-flight (TOF)-magnetic resonance angiography (MRA) is used for this purpose due to its lack of radiation, contrast media and complications. The comparative diagnostic yield of TOF-MRA for different flow diverters has not been previously analyzed. Read More

View Article and Full-Text PDF

The outcomes of recurrent wide-necked intracranial aneurysms treated with the Woven EndoBridge (WEB): A retrospective bicenter study.

J Neuroradiol 2021 Jun 6. Epub 2021 Jun 6.

Department of Radiology, Turku University Hospital, Turku, Finland.

Background: The Woven EndoBridge (WEB) is a device for the treatment of intracranial wide-necked bifurcation aneurysms. The safety and effectiveness of WEB for intracranial aneurysms have both been evaluated in previous trials. Our aim was to study the outcomes of recurrent intracranial aneurysms (IAs) treated with WEB. Read More

View Article and Full-Text PDF

Transient oculomotor paralysis after cerebral angiography: A case report.

Medicine (Baltimore) 2021 Jun;100(22):e26242

Department of Neurology.

Rationale: A special case of transient oculomotor nerve palsy after cerebral angiography.

Patient Concerns: A 55-year-old man developed oculomotor nerve dysfunction after right radial artery puncture angiography.

Diagnoses: Cerebral angiography-induced oculomotor nerve palsy. Read More

View Article and Full-Text PDF

Delayed transient obstructive hydrocephalus after cerebral aneurysm rupture: A case report.

Medicine (Baltimore) 2021 Jun;100(22):e26228

Department of Neurosurgery, Chengdu Second People's Hospital.

Rationale: Obstructive hydrocephalus (OH) frequently occurs in patients with a ruptured cerebral aneurysm (CA), and it may lead to severe neurological deficits, including life-threatening brain herniation. OH generally occurs in the early stage of CA rupture, rather than in the late stage, and rarely resolves without therapy.

Patient Concerns: A 64-year-old woman with a ruptured anterior communicating artery aneurysm was treated with coil embolization. Read More

View Article and Full-Text PDF

Left Transradial Neurointerventions using the 6Fr Simmons Guiding Sheath: Initial Experiences with the Interchange Technique.

World Neurosurg 2021 Jun 1. Epub 2021 Jun 1.

Department of Neurosurgery, St. Marianna University School of Medicine, Kanagawa, Japan.

Background: The transradial approach using a Simmons-shaped catheter has been increasingly used for diagnostic cerebral angiography and neurointervention. In the transradial approach for neurointervention, the right radial artery is mainly used. However, in interventional cardiology, there are apparent clinical benefits with the left transradial approach for right-handed patients. Read More

View Article and Full-Text PDF

Optic nerve sheath fenestration for visual rehabilitation in moyamoya disease.

Saudi J Ophthalmol 2020 Jul-Sep;34(3):223-226. Epub 2021 Feb 27.

Department of Neuro-Ophthalmology, Sankara Nethralaya, Medical Research Foundation, Chennai, Tamil Nadu, India.

A 13-year-old female presented with decrease in vision in both eyes with headache and vomiting for 15 days. Her visual acuity was perception of light with inaccurate projection in the right eye and counting fingers close to face in the left eye. Pupils were nonreactive. Read More

View Article and Full-Text PDF
February 2021

Neoplastic cerebral aneurysm from triple-negative breast cancer: A case report.

Surg Neurol Int 2021 3;12:204. Epub 2021 May 3.

Superior Medical Experts, Saint Paul, Minnesota, United States.

Background: We present a rare case of a ruptured neoplastic aneurysms (NCA) caused by metastatic spread of triple-negative breast cancer (TNBC) in a female patient in her 60s. The patient had a medical history of TNBC and presented to the emergency department after experiencing 3 days of persistent headache.

Case Description: Head computed tomography (CT) revealed a small volume subarachnoid hemorrhage and digital subtraction angiography revealed a 3. Read More

View Article and Full-Text PDF

Cerebral venous thrombosis of the sphenoparietal sinus: A case report.

Surg Neurol Int 2021 3;12:197. Epub 2021 May 3.

Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States.

Background: Cerebral venous thrombosis (CVT) is a rare cause of stroke that preferentially affects reproductive aged females and patients with hereditary or acquired thrombotic risk factors. The superior sagittal sinus and transverse sinus are the two most common sites for thrombus formation.

Case Description: We report a case of CVT arising in a very rare location, the sphenoparietal sinus. Read More

View Article and Full-Text PDF

Ruptured infectious ICA pseudoaneurysm into the sphenoid sinus after maxillofacial infection, successfully treated by selective embolization.

Surg Neurol Int 2021 26;12:191. Epub 2021 Apr 26.

Department of Radiology and Interventional Neuroradiology, University of Patras, Patra, Achaia, Greece.

Background: Intracranial infectious aneurysms are cerebral aneurysms caused by pathogen-induced inflammation undermining the arterial wall. We present a rare case of inflammatory pseudoaneurysm of cavernous internal carotid artery (ICA).

Case Description: A 51-year-old female with a recent diagnosis of acute lymphoblastic leukemia developed maxillofacial infection with and after chemotherapy onset. Read More

View Article and Full-Text PDF