A joint convolutional-recurrent neural network with an attention mechanism for detecting intracranial hemorrhage on noncontrast head CT.

To investigate the performance of a joint convolutional neural networks-recurrent neural networks (CNN-RNN) using an attention mechanism in identifying and classifying intracranial hemorrhage (ICH) on a large multi-center dataset; to test its performance in a prospective independent sample consisting of consecutive real-world patients. All consecutive patients who underwent emergency non-contrast-enhanced head CT in five different centers were retrospectively gathered. Five neuroradiologists created the ground-truth labels.

Inter-vendor performance of deep learning in segmenting acute ischemic lesions on diffusion-weighted imaging: a multicenter study.

There is little evidence on the applicability of deep learning (DL) in the segmentation of acute ischemic lesions on diffusion-weighted imaging (DWI) between magnetic resonance imaging (MRI) scanners of different manufacturers. We retrospectively included DWI data of patients with acute ischemic lesions from six centers. Dataset A (n = 2986) and B (n = 3951) included data from Siemens and GE MRI scanners, respectively.

Combination of temporary bridging device (Comaneci) and permanent stenting in the treatment of unruptured wide neck bifurcation aneurysms.

The double stent-assisted techniques for the treatment of wide neck bifurcation aneurysms (WNBAs) may be more complicating than single stent-assisted or balloon-assisted coiling. The Comaneci device (Rapid Medical, Yokneam, Israel) is a new temporary bridging device developed for covering the aneurysm neck during coiling. This new design enabled us to treat unruptured WNBAs with the use of single stent-assisted coiling instead of double stent in eight patients.

Marchiafava-Bignami disease: Report of three cases.

Marchiafava-Bignami disease (MBD) is a rare alcohol-associated disorder characterized by demyelination and necrosis of the corpus callosum. We report three patients who had history of chronic alcoholism, different clinical presentation and MRI findings consistent with the diagnosis of Marchiafava-Bignami disease.

Medium-term results of undersized angioplasty and stenting for symptomatic high-grade intracranial atherosclerotic stenosis with Enterprise.

Purpose: The aim of this retrospective study is to evaluate medium-term results of undersized balloon angioplasty and stenting for symptomatic high-grade (70-99%) stenosis of a major intracranial artery with Enterprise stent.

Methods: This study included 68 consecutive symptomatic (recurrent transient ischemic attack (TIA) or ischemic stroke under dual antiplatelet treatment) patients with high-grade (70-99%) stenosis of a major intracranial artery who were endovascularly treated with undersized balloon angioplasty and Enterprise stent deployment between July 2012 and December 2017. Primary outcomes were any stroke or death within 30 days after procedure.

[Sturge Weber type 3 presenting with occipital epileptic seizure: case report].

Sturge Weber syndrome is the third most common neurocutaneous syndrome after neurofibromatosis and tuberous sclerosis. Three distinct types were identified. Type 3 with leptomeningeal involvement alone is the rarest among other types.

Single-center experience with the Tigertriever device for the recanalization of large vessel occlusions in acute ischemic stroke.

Background: Tigertriever (Rapid Medical, Yoqneam, Israel) is a new design of stent retriever.

Purpose: To evaluate the feasibility, safety, and efficacy of the Tigertriever in patients with acute ischemic stroke who have undergone mechanical thrombectomy.

Materials And Methods: Two different techniques-namely, standard unsheathing (SUT) and repetitive inflation-deflation (RID) techniques, were used.

A case with angiographic demonstration of isolated anterior spinal artery occlusion.

Anterior spinal artery syndrome (ASAS) is a rare syndrome which occurs due to thrombosis of anterior spinal artery (ASA) which supplies anterior two thirds of the spinal cord. A 27-year-old female patient was admitted to emergency clinic with sudden onset neck pain, sensory loss and weakness in proximal upper extremities which occurred at rest. Thrombophilia assessment tests were negative.

A case of secondary SUNCT syndrome.

SUNCT syndrome, a rare form of primary headaches, may be secondary to pituitary tumours. The secondary forms usually related with prolactinomas. The response of dopamin agonists could be variable.

THE DIAGNOSTIC AND MANAGEMENT CHALLENGES FOR POSTERIOR REVERSIBLE LEUCOENCEPHALOPATHY SYNDROME.

Posterior reversible encephalopathy syndrome (PRES) is a clinicoradiological entity characterized by epileptic seizures, headaches, altered mental status and focal neurological signs. Hypertension is the second most common condition associated with PRES. The 50-year-old-male patient with, right-sided hemiparesis and speech disturbances admitted to our clinic.

Baloon angioplasty for venous sinus stenosis in a idiopathic intracranial hypertension case.

The Idiopathic Intracranial Hypertension (IIH) is a well characterised condition with intractable headaches, visual obscurations, and papilloedema as dominant features, mainly affecting obese women. With the advent of magnetic resonance (MR) venography and increased use of cerebral angiography, there has been recent emphasis on the significant number of patients with IIH found to have associated non-thrombotic dural venous sinus stenosis. This has led to a renewed interest in endovascular stenting and angioplasty as a treatment for IIH in patients non-responsive to medical treatment.

An unusual cause of foreign-body sensation in the throat: a displaced superior cornu of the thyroid cartilage.

Foreign-body sensation is a nonspecific symptom of aerodigestive tract diseases. We describe the case of a 42-year-old man who presented with a foreign-body sensation in the throat that was found to be caused by a displaced superior cornu of the thyroid cartilage. Such a displacement is not well known, but we believe that it may not be rare.

The role of DTI in early detection of cervical spondylotic myelopathy: a preliminary study with 3-T MRI.

Introduction: The radiological diagnosis of cervical spondylotic myelopathy (CSM) has to be made as soon as possible, since surgery performed in earlier stages during the course of CSM was reported to be more successful when compared with later stages. We hypothesized that diffusion tensor imaging (DTI) may detect CSM in earlier stages, before the appearance of signal increase in T2-weighted sequences.

Methods: A total of 16 patients with neurological signs and symptoms of CSM but without hyperintensity in spinal cord on T2-weighted sequences enrolled in the study.

Regression of neointimal hyperplasia of an intracranial stent: 6 years follow-up of a wide-necked aneurysm.

We present a case of wide-necked giant aneurysm located at the P1-P2 segment of the posterior cerebral artery. The initial goal for treatment of the aneurysm was hemodynamic flow redirection with subsequent thrombosis so the procedure and involved stent placement to the neck of the aneurysm without any filling material. During follow up, significant in-stent stenosis due to intimal hyperplasia was found at the 6th month on digital subtraction angiography.

Heart rate variability of young men with idiopathic hypogonadotropic hypogonadism.

Background: There is little data available regarding the effects of male sex hormones on cardiac autonomic function. The aim of this study is to evaluate the association between hormones of male hypothalamo-pitiutary-gonadal axis and cardiac autonomic function by comparing heart rate variability (HRV) parameters of young male idiopathic hypogonadotropic hypogonadism patients with those of healthy controls.

Methods: The study consisted of 22 male idiopathic hypogonadotropic hypogonadism patients (mean age 20.

Isolated cortical venous thrombosis associated with intracranial hypotension syndrome.

The association of intracranial hypotension syndrome with cerebral venous thrombosis is rare. We report our experience with isolated cortical venous thrombosis, which developed after unsuccessful epidural anesthesia. Magnetic resonance imaging showed characteristic imaging findings of intracranial hypotension syndrome, such as dural thickening and brain sagging.

MR spectroscopy findings in Lafora disease.

Purpose: Our aim was to investigate the [(1)H] MR spectroscopy (MRS) findings of Lafora Disease (LD), which is a disabling form of progressive myoclonic epilepsy.

Methods: Twelve patients diagnosed with LD and 12 control subjects underwent MRS studies with single-voxels of 8 cc obtained in the frontal lobe, pons, and cerebellum. The metabolites and NAA/Cr, NAA/Cho, Cho/Cr, mI/Cr ratios were calculated.

Diffusion-weighted magnetic resonance imaging findings of a patient with neonatal citrullinemia during acute episode.

Reports on citrullinemia usually describe the imaging findings in the adult form of the disease. However, neuroimaging findings of neonatal cases are seldom reported. We report on the diffusion-weighted magnetic resonance imaging (MRI) findings of a one-year old infant with neonatal citrullinemia during an acute episode and discuss possible underlying mechanisms for abnormal diffusion findings.

Asymptomatic retropharyngeal abscess related to cervical Pott's disease.

Pott's disease is an uncommon manifestation of tuberculosis, which usually involves thoracic or lumbar vertebrae. The body of the vertebrae is most severely affected and a compression fracture is an almost inevitable consequence of the disease. A paravertabral abscess generally accompanies vertebral involvement.

Cerebral venous sinus thrombosis presenting with excessive subarachnoid hemorrhage in a 14-year-old boy.

Cerebral venous thrombosis presenting with subarachnoid hemorrhage (SAH) is very rare. We report a case of cerebral venous sinus thrombosis as an initial manifestation of SAH. A 14-year-old boy was admitted with progressive headache, nausea, vomiting, diplopia, and gait disturbance.