Comparison of radiological and clinical characteristics of COVID-19 positive and negative ischemic stroke patients undergoing revascularization: A single-centre Turkish study.

Objective: We aimed to compare the radiological and clinical characteristics of COVID-19-positive and -negative acute ischemic stroke (AIS) patients who underwent revascularization and to evaluate whether COVID-19 has an effect on revascularization and outcome in AIS patients with COVID-19 infection.

Methods: Consecutive COVID-19 positive and negative AIS patients who underwent intravenous thrombolysis and/or endovascular therapy in our hospital between March 2020 and February 2022 were included in this study. Our study is retrospective and 23 COVID-19 positive patients and 108 COVID-19 negative patients were compared in terms of radiological and clinical characteristics.

Multi-parameter-based radiological diagnosis of Chiari Malformation using Machine Learning Technology.

Background: The known primary radiological diagnosis of Chiari Malformation-I (CM-I) is based on the degree of tonsillar herniation (TH) below the Foramen Magnum (FM). However, recent data also shows the association of such malformation with smaller posterior cranial fossa (PCF) volume and the anatomical issues regarding the Odontoid. This study presents the achieved result regarding some detected potential radiological findings that may aid CM-I diagnosis using several machine learning (ML) algorithms.

Y-stent assisted coiling of ruptured wide neck intracranial aneurysm in the acute phase.

Background: The objective of the present study is to analyze the outcomes of patients with subarachnoid hemorrhage (SAH) in the acute phase after treatment with Y-stent-assisted coiling (YSAC) embolization.

Methods: This retrospective study assessed of 30 patients with acutely ruptured wide-neck aneurysms following YSAC treatment between April 2013 and October 2019. The demographic data, aneurysm occlusion grade, procedural and periprocedural complications, and clinical outcomes were assessed.

Angiographic Morphology of Anterior Communicating Artery Aneurysms and Their Association with Rupture Risk.

Aim: To estimate the rupture risk of anterior communicating artery (AComA) and AComA-related aneurysms according to their localization, angiographic architecture, and morphological features.

Material And Methods: In this study, 124 patients with AComA and AComA-related anterior system aneurysms were retrospectively evaluated. The aneurysms were classified according to their morphological appearance and angiographic architecture.

Advantages of early intervention with arterial embolization for intra-abdominal solid organ injuries in children.

Purpose: Active bleeding due to abdominal trauma is an important cause of mortality in childhood. The aim of this study is to demonstrate the advantages of early percutaneous transcatheter arterial embolization (PTAE) procedures in children with intra-abdominal hemorrhage due to blunt trauma.

Methods: Children with blunt abdominal trauma were retrospectively included.

Use of angiographic embolization in trauma-induced pediatric abdominal solid organ injuries.

Background: Knowledge of the utility of angiographic embolization (AE) in pediatric cases of blunt abdominal solid organ trauma injuries is limited. The current study is an examination of AE as an effective and reliable method to control bleeding in patients with persistent bleeding due to blunt trauma-induced abdominal solid organ injury.

Methods: This was a retrospective examination of patients <17 years of age who had experienced blunt abdominal solid organ injury and who presented at a single institution within 4 years.

A Novel Technique in the Treatment of Lymphoceles After Renal Transplantation: C-Arm Cone Beam CT-Guided Percutaneous Embolization of Lymphatic Leakage After Lymphangiography.

Background: We aimed to evaluate the efficacy of percutaneous embolization after lymphangiography using C-arm cone-beam computed tomography (CBCT) performed at the site of lymphatic leakage in patients with postrenal transplant lymphocele.

Methods: Between July 2014 and August 2017, 13 patients not responding to percutaneous ethanol sclerotherapy and conservative treatment for recurrent lymphocele after renal transplant were included. The mean age of the patients was 56.

Management of non-vascular complications following renal transplantation using percutaneous approach.

Objective: Non-vascular complications following renal transplantation can cause graft failure. In this study, we present our two-year experience with percutaneous treatment for non-vascular complications following renal transplantation.

Patients And Methods: A total of 30 patients who underwent percutaneous radiological treatment between March 2014 and July 2016 were included in the study.

Sudden-onset paraplegia during pregnancy caused by haemorrhage in a spinal cord haemangioblastoma: A case report.

Spinal cord haemangioblastomas are rare central nervous systems tumours, and haemorrhage.It is an uncommon occurance. We report a 28-year-old pregnant patient who presented with paraplegia due to acute haemorrhage of a spinal haemangioblastoma.

Superior ophthalmic vein thrombosis developed after orbital cellulitis.

A 65-year-old female patient presented with eye pain, swelling and blurred vision in the left eye. Routine biochemistry and microbiological analyzes were conducted. Orbital tomography (CT), magnetic resonance imaging (MRI) findings, and cerebral angiography were performed.

Acute subdural hematomas caused by ruptured aneurysms: experience from a single Turkish center.

Aim: Although an aneurysmal rupture typically presents on computed tomography (CT) imaging as only a subarachnoid hemorrhage (SAH), it may be associated with spontaneous (nontraumatic) subdural hemorrhage (sSDH). The purpose of this paper is to discuss the clinical and radiological characteristics, as well as a potentially dangerous situation in the diagnosis and the management of this life-threatening condition.

Material And Methods: The Department of Neurosurgery at Inonu University (Turgut Ozal Medical Center) (TOMC) maintains a prospective database of all patients treated for intracranial aneurysms since 1999.

Single-voxel magnetic resonance spectroscopy of brain tissue adjacent to arachnoid cysts of epileptic patients.

Intracranial arachnoid cysts (ACs) are usually asymptomatic, benign developmental anomalies. The most frequent clinical manifestations are cranial expansion, hydrocephaly, headache, epileptic seizures, psychomotor retardation, and aphasia. It is unknown whether there is a correlation between intracranial AC and epileptic seizures without obvious intracranial pressure signs.

Isolated internal auditory artery aneurysm.

Anticoagulant therapy is effective and prevents death in more than 95% of patients with pulmonary embolism following deep vein thrombosis. We report a patient who developed deep vein thrombosis following rupture of a dissecting aneurysm of the internal auditory artery. The parent artery was occluded before anticoagulant therapy as a prophylactic measure to prevent intracranial haemorrhage.

Bare stent implantation in iatrogenic dissecting pseudoaneurysm of the superior mesenteric artery.

Iatrogenic arterial dissection leading to the development of dissecting pseudoaneurysms of the superior mesenteric artery (SMA) is a rare complication of angiography. Surgical and endovascular treatment options exist for this important condition. We report a case of bare stent implantation in dissecting pseudoaneurysm of the SMA that developed after angiography in a patient with acute mesenteric ischemia.

Percutaneous right portal vein embolization with polyvinyl alcohol particles in gastric cancer metastasis: report of a case.

Polyvinyl alcohol (PVA) particles are used for the embolization of various vascular tumors. They are also used before hepatic resection to embolize the ipsilateral portal vein, causing hypertrophy of the remaining liver. We report our first experience with portal vein embolization (PVE) with PVA particles to treat gastric cancer metastasis to the liver.

Metabolic changes in pelvic lesions: findings at proton MR spectroscopic imaging.

Objective: The purpose of this study is to investigate the in vivo magnetic resonance spectroscopic (MRS) features of pelvic lesions using long echo time and to characterize the spectral patterns of various pathological entities.

Materials And Methods: 17 patients with surgically and histopathologically confirmed pelvic lesions underwent long echo-time MRS, and the results obtained were analyzed. Before laparotomy, choline (Cho), lactate, lipid and creatine (Cr) levels of all lesions were measured by single voxel MRS (point-resolved spectroscopy technique, TE 136 ms).

Magnetic resonance spectroscopy study of proton metabolite level changes in sensorimotor cortex after upper limb replantation-revascularization.

We aimed to investigate the changes in proton metabolite levels at the motor and somatosensory cortex by magnetic resonance spectroscopy (MRS) after upper extremity replantation or revascularization. Nine patients who referred to our clinic suffering from major total (two) and subtotal (seven) amputation of the upper extremity were enrolled in this study. Mean time value between the injury and operation was 5.

Magnetic resonance spectroscopy of premalignant and malignant endometrial disorders: a feasibility of in vivo study.

Objective: To assess the potential clinical utility of in vivo proton magnetic resonance spectroscopy (MRS) in patients with various endometrial lesions.

Methods: Twelve patients with untreated uterine bleeding were included in this study. In-vivo proton MRS was performed using a 1.

Middle cerebral artery aneurysm associated with Behçet's disease--case report.

A 37-year-old man with Behçet's disease suffered secondary subarachnoid hemorrhage and intracerebral hematoma in the right temporal lobe caused by a ruptured aneurysm of the right middle cerebral artery. The aneurysm was successfully clipped. Aneurysm formation is common in the visceral arteries in Behçet's disease, but extremely rare in the intracranial arteries.

The cisternal segment of the abducens nerve in man: three-dimensional MR imaging.

Purpose: The goal of this study was to identify the abducens nerve in its cisternal segment by using three-dimensional turbo spin echo T2-weighted image (3DT2-TSE). The abducens nerve may arise from the medullopontine sulcus by one singular or two separated rootlets.

Material And Methods: We studied 285 patients (150 males, 135 females, age range: 9-72 years, mean age: 33.

Magnetic resonance spectroscopy features of uterine leiomyomas.

Objective: The purpose of this study is to investigate the in vivo magnetic resonance spectroscopy features of uterine leiomyomas using long echo time and to characterize the spectral patterns of these lesions.

Methods: We calculated metabolites in 15 patients with uterine leiomyomas and myometrium of 20 healthy control subjects using single-voxel proton MR spectroscopy (point resolved spectroscopy technique, TE:136 ms). Voxels were placed at the center of the uterine leiomyomas.

In vivo proton magnetic resonance spectroscopy in the evaluation of the endometrium.

Background: The purposes of this study were to compare proton magnetic resonance (MR) spectroscopic evaluation of the endometrium with histology obtained by endometrial biopsy in women undergoing diagnostic curettage and to determine whether screening with MR spectroscopy (MRS) might be useful in the evaluation of the endometrium.

Methods: Twenty-three consecutive women who were scheduled for endometrial biopsy were included in the study. The women were evaluated by MRS, performed immediately before the endometrial biopsy.