Basar Sarikaya

• Doctor of Medicine
• Professor (Associate) at University of Washington

Introduction: Lung injury and the acute respiratory distress syndrome (ARDS) are common after out-of-hospital cardiac arrest (OHCA), but the imaging characteristics of lung parenchymal and pleural abnormalities in these patients have not been well-characterized. We aimed to describe the incidence of lung parenchymal and pleural findings among patie...

Background Patients resuscitated from out‐of‐hospital circulatory arrest (OHCA) frequently have cardiopulmonary resuscitation injuries identifiable by computed tomography, although the prevalence, types of injury, and effects on clinical outcomes are poorly characterized. Methods and Results We assessed the prevalence of resuscitation‐associated i...

Introduction: Patients resuscitated from out-of-hospital cardiac arrest (OHCA) frequently have skeletal and visceral injuries identifiable by computed tomography, although the prevalence, types of injury, and potential effects on clinical outcomes are poorly characterized. Methods: We assessed the prevalence of resuscitation-attributable injury in...

The purpose of this review is to understand the role of imaging in the diagnosis and management of non-traumatic subarachnoid hemorrhage (SAH). SAH is a life-threatening emergency and a relatively common entity, the most common etiology being ruptured aneurysms. Multiple conundrums exist in literature at various steps of its imaging workup: diagnos...

PurposeIn this study, we aimed to introduce the facial nerve as a new anatomical landmark which can be used in ossified cochleas during cochlear implantation. We also set out to define a safe line to preserve the internal auditory canal (IAC) while drilling the basal turn of the cochlea.Methods Thirty patients who had temporal computed tomography (...

Objective To assess whether intracranial vessel wall (IVW) MRI luminal measurements are more accurate than non-contrast 3D-TOF-MRA measurements for intracranial atherosclerotic stenosis, relative to CTA. Methods Consecutive patients with non-calcified intracranial atherosclerotic stenosis seen on CTA, who had non-contrast 3D-TOF-MRA and IVW perfor...

Purpose: Diffusion tensor tractography (DTT) might reflect the post-operative clinical outcome of the patients with brainstem (BS) tumors correlating well with the neurological symptoms, but cavernous malformation (CM) is a hemorrhagic tumor prone to artifacts that may limit DTT. We set out to determine the correlation of DTT findings with the neu...

Purpose: We aimed to compare the size-specific dose estimates (SSDE), computed tomography (CT) dose indices and image quality parameters of the chest CTs obtained with fast kilovoltage-switching (FKS) dual-energy (DE) CT versus those with single-energy (SE) CT. Methods: Patients who had chest SECT within the last 6 months were prospectively scan...

Purpose To assess radiation-induced cholecystitis in cases of cystic artery origin nearby the treatment zone for transarterial radioembolization (TARE) treatment. Materials and methods Patients with primary or secondary malignant liver tumors treated with TARE, in whom cystic artery was located in the surrounding area of the treatment zone on 99m-...

Purpose We present the preliminary angiographic and clinical results of the combined utilization of an AXS Catalyst 5 (Cat5) distal access catheter and a Surpass flow diverter (SFD) for the endovascular treatment of intracranial aneurysms. Materials and methods Interventional neuroradiology case records were evaluated retrospectively to identify p...

Although inappropriate sexual behavior in dementia is not common, it can be extremely troublesome for healthcare professionals and caregivers as well as patients themselves. There is paucity of data in the literature for the management of these behaviors, but the limited available data suggest efficiency of some commonly used treatment modalities....

Patient: Male, 11 Final Diagnosis: Haberland syndrome Symptoms: Seizure Medication: — Clinical Procedure: Medical treatment Specialty: Neurosurgery Objective Rare disease Background Encephalocraniocutaneous lipomatosis (ECCL) was first announced as a new type of ectomesodermal dysgenesis in 1970 by Haberland and Perou. ECCL was first described in...

Background: Contrast-enhanced, fat-suppressed T1-weighted imaging (CET1WI) magnetic resonance imaging (MRI) is quite sensitive in detecting acute optic neuritis (ON), but ON remains a clinical diagnosis. MRI is indicated to evaluate demyelinating brain lesions rather than the optic nerves, while "routine" brain protocols typically include axial FL...

Term-equivalent imaging can assess myelination status in very preterm infants (<30 weeks' gestational age at birth). However, myelination assessment has yet to be compared among GRE-T1WI, SE-T1WI, and SE-T2WI at 3T. We aimed to compare the rates of myelination among those 3 sequences in 11 very preterm neonates who underwent 3T MR imaging at term-e...

The role of Doppler ultrasonography in the diagnosis of diffuse thyroid diseases is not well established. In particular, Doppler ultrasonography findings in children with Hashimoto's thyroiditis are very limited. We examined gray-scale and Doppler ultrasound findings in Hashimoto's thyroiditis in children in an attempt to understand the feasibility...

I read the article by Kong et al titled “Acute Effects of Alcohol on the Human Brain: Diffusion Tensor Imaging Study” in the May 2012 issue of AJNR with great interest.[1][1] The authors reported novel findings on the world's oldest and most widely used recreational drug, ethanol, and

PRES-related vasogenic edema is potentially reversible while hemorrhage occurs in only 15.2%-17.3% of patients. However, the true incidence of hemorrhage could be higher when SWI is considered. Thus, we set out to determine the incidence of MH, SAH, and IPH in PRES by using SWI and to particularly evaluate whether such MHs are reversible. Thirty-on...

Previous evidence supports a direct relationship between the calcium burden (volume) on post-contrast CT with the percent internal carotid artery (ICA) stenosis at the carotid bifurcation. We sought to further investigate this relationship by comparing non-enhanced CT (NECT) and digital subtraction angiography (DSA). 50 patients (aged 41-82 years)...

We report a patient with a cystic structure in the nasopharynx mimicking a Tornwaldt's cyst, which was felt to represent a different entity owing to the lack of the distinct features of a typical Tornwaldt's cyst. It was associated with a bony cleft in the basiocciput that was considered to be a canalis basilaris medianus (CBM), thought to represen...

The purpose of this study was to test a first hypothesis that fractional anisotropy (FA) and apparent diffusion coefficient (ADC) values continue to change in late childhood and adolescence and a second hypothesis that less mature white matter (WM) regions have a higher rate of change than WM regions that are relatively more mature. Eighty-seven he...

Carpal tunnel syndrome (CTS) is the most common nerve entrapment syndrome. It is sometimes difficult to diagnose, and a late diagnosis may result in permanent nerve damage. Electromyography (EMG), ultrasonography (US), magnetic resonance imaging (MRI), and computed tomography (CT) may be performed for the diagnosis. The diagnostic accuracy of these...

We read with great interest the description by U-King-Im et al[1][1] in the February issue of the American Journal of Neuroradiology ( AJNR ) of 4 patients with “acute hyperammonemic encephalopathy” on diffusion-weighted imaging (DWI). In the September 2010 issue of AJNR , we used a similar term

Objective: This review presents some of the more common causes of false-positive and false-negative interpretations of cross-sectional imaging studies showing, or designed to show, dissection of the carotid or vertebral arteries. Conclusion: Dissection of the craniocervical arteries is a diagnosis that can be very difficult on cross-sectional im...

We describe a 28-year-old man with presumed VKH syndrome, whose presenting symptoms were bilateral impaired vision and headaches. Orbital MR imaging findings included bilateral choroidal and retrobulbar contrast enhancement, while brain findings included white matter abnormalities on FLAIR and leptomeningeal enhancement. Pachymeningeal enhancement...

A 15 year old male was admitted to hospital for right upper quadrant abdominal pain. He had had intermittent pain for 4 months which has become severe in the last 15 days. He had been followed with hereditary spherocytosis for 10 years. Physical examination revealed tenderness in the right upper quadrant and jaundice, which had been present for the...

In acute hepatic encephalopathy, MR imaging abnormalities have been described in the PVWM, thalami, and corticospinal tracts. We sought to determine characteristic regions of involvement on FLAIR and DWI, to evaluate their reversibility, and to correlate MR imaging extent with clinical severity. Twenty patients who presented clinically with acute h...

The purpose of the study was to determine the frequency of various unenhanced computed tomography (CT) findings of early cerebral ischemia within brain parenchyma, which could be useful to the radiologist who is interpreting CT studies by indicating the CT finding that is most likely to be present in early cerebral ischemia. We analyzed articles re...

We compared high-resolution ultrasonography with magnetic resonance imaging (MRI), as the gold standard, to evaluate lateral and anterior capsule-condyle distances to detect disc displacement of the temporomandibular joint. This study included 28 patients (19 female and 9 male; age range, 16-51 years; mean age, 32.82 years), and in total, 56 joints...

This report attempts to document the potential of magnetic resonance (MR) tractography in providing detailed information on white matter tract anomalies in schizencephaly. Diffusion tensor imaging with tractography was performed in four patients referred for neuroimaging. On conventional MR imaging, two of the patients had temporal lobe involvement...

Objective: Initial assessment of patients with suspected dissection of the carotid or vertebral arteries typically is made by MRI, alone or in combination with MR angiography (MRA) or CT angiography (CTA). We reviewed the medical literature to determine, based on test performance characteristics such as sensitivity, specificity, positive predictiv...

To assess the clinical features of several members of the same family diagnosed with both hot water epilepsy (HWE) and cerebral lesions. Age at onset and types of seizure, precipitating factors, EEG findings, and neuroimages were evaluated. The family consisted of six generations, including one consanguineous parent. Of eight family members diagnos...

To the Editor: I have read the research letter entitled “Unruptured intracranial aneurysms: incidence of rupture and risk factors” by Ishibashi et al with great interest.1 I felt the need to clarify a few points regarding the aneurysm size as one of the well-known risk factors. The authors emphasized on the results of the International Study on Un...

Keratocystic odontogenic tumour (KCOT) is a common developmental benign odontogenic neoplasm in the jaws. In this paper, a case of a large KCOT and unusual reconstruction with autologous fat graft are reported. A 73-year-old woman was referred to our clinic with a complaint of right preauricular swelling and pain. Radiographic examination showed la...

Chorea gravidarum is a rare disorder characterized by choreiform and athetoid movements seen during pregnancy. History of Sydenham chorea can be found in more than one third of the patients. Changes in basal ganglia metabolism secondary to pregnancy-related increase in progesterone and estrogen levels were suggested as the cause of the chorea. Here...

We describe a patient with a small ruptured azygos anterior cerebral artery aneurysm located at a non-bifurcation distal site on the artery treated successfully with simple coiling.

We report the first case of unilateral incus agenesis in the literature. Preoperative diagnosis by virtual endoscopy further enhances the significance of this case. We present thin-section temporal bone computed tomographic images and 3-dimensional reconstructed views which were all correlated with intraoperative findings. The patient was successfu...

We describe a patient with postoperative unilateral hypoglossal nerve paralysis after an uncomplicated intubation. Postoperative evaluation showed that he had an Arnold Chiari type 1 malformation. The paralysis resolved completely by the second postoperative month.

Carotid artery dissection is usually unilateral. Rarely bilateral forms can be seen. Recent studies have shown the efficacy of computed tomography angiography (CTA) in the diagnosis of carotid dissection. Herein we report a case with bilateral carotid artery dissection diagnosis and follow-up which was carried out using mainly CTA.

We present imaging findings of a patient with an incomplete form of the PHACES syndrome with dolichosegmental intracranial arteries as the predominant component, and discuss the etiopathological and clinical significance of this finding.

ABSTRACT Neurofibroma is a benign tumor of the nerve sheath, which is considered to originate from the Schwann cell. Since neural tissues are found throughout the body these tumors can occur in a variety of sites. Intrascrotal extratesticular localization of neurofibromas have been reported extremetely rarely in the literature. A 45- year-old ma...

To compare contrast-enhanced magnetic resonance (MR) cholangiography (CE-MRC) performed with gadobenate dimeglumine with T2-weighted MRC (T2-MRC) for visualization of the bile ducts in nondilated biliary systems. Twenty consecutive patients who underwent MR imaging (MRI) of the liver and pancreas with nondilated intrahepatic ducts were included in...

We present an adult female patient with Dyke-Davidoff-Masson syndrome with distinct features, and discuss neuroimaging findings some of which are unique to this syndrome.

This review addresses the use of sonography in the evaluation of patients suspected of having ectopic pregnancy. The use of transvaginal and transabdominal sonography and the role of Doppler imaging in the early diagnosis of ectopic pregnancy are discussed. Various sonographic findings and pitfalls of ectopic pregnancy are analyzed, with emphasis o...

Restrictions with computed tomography angiography (CTA) regarding the visualization of arteries near the skull base are well known. Today, the gold standard for overcoming this is the matched mask bone elimination method. Worldwide use of this method is limited since it requires advanced imaging physics and software. A more simple method was introd...

Fat embolism syndrome is a rare, but life-threatening problem and is usually associated with severe trauma. Neurological symptoms are variable, and the clinical diagnosis is difficult. We describe a patient with fat density lesions on cranial CT sections and discuss the etiopathogenesis of cerebral fat embolism (CFE) in this patient who does not ha...

Cough headache is located under sub-heading of primary cough headaches within ‘other primary cough headaches' according to the recent classification by International Headache Society. This new classification defines the group with no accompanying intracranial pathology as primary, and the group being associated with any intracranial pathology as sy...

We present a case of azygos pericallosal artery mimicking an anterior communicating artery aneurysm in a patient with headache that we thought the first reported case detected by CT angiography.

Renal lymphangiomatosis is a very rare disorder, with only a few reported cases. We present a case of bilateral renal lymphangiomatosis, manifested by bilateral flank pain, that was falsely diagnosed as hydronephrosis. Excretory urographic, ultrasonographic, and computed tomographic urographic findings are described.

We present chest X-ray and multidetector computed tomography findings of an adult with Morgagni hernia in the setting of acute appendicitis and discuss the role of multidetector row CT in the definitive diagnosis of this incidental finding.

Hemophagocytic lymphohistiocytosis (HLH) is a rare disorder of the immune system that is associated with frequent involvement of the central nervous system (CNS). The MR imaging and CT findings of the CNS infiltration have been reported in the past; however, the diffusion-weighted imaging (DWI) findings have not been previously described. We presen...

Arrythmogenic right ventricular dysplasia (ARVD) is an idiopathic syndrome, characterised by fatty and fibrotic replacement of the right ventricular wall. Patients, who are usually young adults or adolescents, present with fatal arrythmias. In the diagnosis, different criteria as well as imaging properties have been known. We present a patient with...

Joubert syndrome is a rare posterior fossa malformation presenting with cerebellarand brainstem malfunction. Differential diagnosis should include other posterior fossamalformations. Typical magnetic resonance imaging (MRI) findings of Joubert syndromeincluding “molar tooth sign” and “batwing appearance” are discussed which strongly suggestthe diag...