The objective of this study was to evaluate susceptibility changes caused by iron accumulation in cognitive normal (CN) elderly, those with amnestic mild impairment (aMCI), and early state AD, compare the findings gray matter volume (GMV) neuronal loss. participants included 19 elderly CN, aMCI, AD subjects. voxel-based quantitative map (QSM) GMV brain were calculated differences insides compared among three groups. QSM data GMVs groups investigated region interest (ROI)-based comparisons...

Background: Sinus X-ray imaging is still used in the initial evaluation of paranasal sinusitis, which diagnosed by opacification or air/fluid level sinuses and best seen Waters' view sinus (PNS). The objective this study was to investigate feasibility recognizing maxillary sinusitis features using PNS images, as well propose most effective method determining a reasonable consensus multiple deep learning models. Methods: A total 4,860 patients, included 2,430 normal subjects each, underwent...

Objective: to investigate the change in volume and signal masticatory muscles temporomandibular joint (TMJ) of patients with disorder (TMD) after whiplash injury, based on magnetic resonance imaging (MRI), correlate them other clinical parameters. Methods: ninety (64 women, 26 men; mean age: 39.36 ± 15.40 years), including 45 symptoms TMD injury (wTMD), age- sex-matched controls due idiopathic causes (iTMD) were included. was diagnosed using study diagnostic criteria for Axis I, MRI findings...

Background and Purpose Various mechanisms are involved in the etiology of stroke caused by atherosclerosis middle cerebral artery (MCA). Here, we compared differences plaque nature hemodynamic parameters according to mechanism patients with MCA atherosclerosis.Methods Consecutive asymptomatic symptomatic (≥50% stenosis) were enrolled. characteristics (location enhancement) wall shear stress (WSS) measured using high-resolution vessel four-dimensional flow magnetic resonance imaging,...

Objective :The leptomeningeal ivy sign is a distinctive finding of moyamoya disease (MMD), characterized by linear high signal intensity along the cortical sulci on contrast-enhanced T1 magnetic resonance imaging (MRI) and fluid-attenuated inversion-recovery MRI.We recently identified similar enhancement using gadolinium-enhanced vessel wall MRI (VWMR) in patients with MMD.The aim this study was to introduce concept "VWMR (VIS)". Methods :Eighteen MMD underwent VWMR.We VIS VWMR, represented...

Background: The hyperintense acute reperfusion marker (HARM) sign is a signal observed on postcontrast fluid-attenuated recovery inversion images and strongly associated with cerebral ischemic insults. clinical significance of the HARM in transient attack (TIA) has rarely been studied, unlike that stroke. This study investigated relationship between various factors diffusion-weighted imaging (DWI)-negative TIA. Furthermore, we recurrence TIA Methods: We included 329 consecutive patients...

Purpose: Whiplash injury can cause internal derangement of the temporomandibular joint (TMJ) and lead to disorders (TMDs). Ouraim wasto evaluate whether initial clinical findings in TMD patients with whiplash are correlated their MRI characteristics. Materials Methods: This case-control study involved 219 (135 women, 84 men; mean age: 37.84 years) who visited our orofacial pain clinic TMD; was diagnosed using research diagnostic criteria for Axis I. Patients were categorized into three...

Blood viscosity may affect the mechanisms of stroke and early neurological deterioration (END). We aimed to investigate relationship between blood viscosity, mechanisms, END in patients with middle cerebral artery (MCA) infarction. Patients symptomatic MCA atherosclerosis (≥ 50% stenosis) were recruited. was compared across different disease: situ thrombo-occlusion (sMCA-IST), artery-to-artery embolism (sMCA-AAE), local branch occlusion (sMCA-LBO). defined as four points increase National...

Rhinocerebral mucormycosis is an acute fulminant opportunistic fungal infection usually seen in diabetic or immunocompromised patients. The fungi that cause inoculate the nasal mucosa and may spread to paranasal sinuses, orbit, brain. Our patient initially presented with mild ethmoid sinusitis. At time, brain MRI contrast-enhanced MR angiography were grossly normal. However, aggravation of sinusitis extension right orbit anterior cranial fossa rapidly developed within two months. Moreover,...

Subclinical atherosclerotic plaques are common in patients with pontine infarctions (PIs) but without basilar artery (BA) stenosis. We hypothesized that BA plaque locations may differ by PI type and vertical location as well vertebrobasilar geometry.Ninety-six stenosis on magnetic resonance imaging (MRI) angiography were enrolled. PIs classified (paramedian, deep, or lateral) (rostral, middle, caudal). Patients underwent high-resolution MRI to evaluate (anterior, posterior, lateral). The...

A 59-year-old woman with classic manifestations of hyperparathyroidism associated multiple endocrine neoplasia type 1 presented a right adrenal mass and two pituitary microadenomas on imaging studies. For evaluation hypercalcemia, (99m) Tc-MIBI scintigraphy was done showed focal uptake at the thyroid level anterior neck. Subsequent neck sonography several nodules, but there no parathyroid tumor. Percutaneous fine-needle aspiration dominant nodule indicated follicular nodule. After surgery,...

Hyperintense acute reperfusion marker (HARM) is defined as delayed CSF enhancement on FLAIR images in patients with stroke and was observed follow-up after initial MRI contrast material administration. We hypothesized that different imaging findings of HARM could be present depending the timing administration.Of 218 consecutive or transient ischemic attack over 3 months, 12 linear cortical surface underwent serial imaging. Initial were obtained 5 minutes administration, unenhanced 2.5-29...

<b><i>Background:</i></b> Clinical and radiological characteristics of middle cerebral artery (MCA) infarction may differ according to the location occlusion. <b><i>Objectives:</i></b> We investigated difference between proximal distal symptomatic MCA occlusion (MCAO) in patients with ischemic stroke. The factors associated imaging were also analyzed. <b><i>Methods:</i></b> Patients stroke due MCAO consecutively...

The metabolite response during a memory task in Alzheimer's disease (AD) patients is unknown.To investigate the changes subjects with AD, amnestic mild cognitive impairment (aMCI), and cognitively normal (CN) elderly using functional magnetic resonance spectroscopy (fMRS).This study involved 23 young controls (YC), 24 CN elderly, aMCI, probable AD individuals. fMRS data were acquired at precuneus posterior cingulate brain regions face-name association task. Statistical analyses of quantified...

Abstract We evaluated the clinical, magnetic resonance imaging (MRI), and psychological characteristics of adolescents with temporomandibular disorder (TMD) compared facial macrotrauma effects between young older adolescents. This case–control study included 70 randomly selected patients (35 aged 12–16 years 35 17–19 years) who had been diagnosed TMD. Each age group was further subdivided according to presence (T1) or absence (T0) a history. All completed questionnaires on joint (TMJ) pain...

Key Clinical Message Intracranial hemorrhage is the leading cause of neurological deficits and poor prognosis in adult patients with Moyamoya disease (MMD). occasionally accompanied by MMD‐associated aneurysm requires additional treatment. To date, direct or indirect bypass surgery endovascular treatment, such as coil embolization, has been adopted achieved successful outcomes. The rapid growth aneurysms rebleeding after via superficial temporal artery‐middle cerebral artery (STA‐MCA)...

Purpose: The hyperintense acute reperfusion marker (HARM) is a delayed enhancement of the subarachnoid or subpial space observed on post contrast FLAIR images, and associated with permeability changes to blood-brain barrier (BBB) in stroke. We investigated relationship between HARM stroke etiology based Trial Org 10172 Acute Stroke Treatment (TOAST) classification. In addition, we evaluated locations respect vascular territories anatomic compartments. Materials Methods: recruited 264...

The purpose of this study was to determine whether a CT interpretation with imaging pattern analysis differentiates Kikuchi disease (KD) from the two more frequently encountered differential lymph nodes diagnoses tuberculous lymphadenopathy (TL) and reactive hyperplasia (RH).Between January 2012 July 2015, 20 patients KD (6 men, 14 women; mean age, 27.80 years), 36 RH (10 26 33.08 years) 34 TL (17 17 39.82 were pathologically diagnosed using US-guided fine needle aspiration biopsy, core or...