Although fine-needle aspiration (FNA) is a safe and accurate diagnostic procedure for assessing thyroid nodules, it has limitations in diagnosing follicular neoplasms due to its relatively high false-positive rate. The purpose of the present study was evaluate role core-needle biopsy (CNB) nodules with neoplasm (FN) comparison FNA.A series 107 patients (24 men, 83 women; mean age, 47.4 years) from 231 FNAs (29 78 46.3 186 CNBs FN readings, all whom underwent surgery, October 2008 December...

<h3>BACKGROUND AND PURPOSE:</h3> Diagnostic test accuracy studies for ultrasonography-guided fine-needle aspiration and core needle biopsy have shown inconclusive results due to their heterogenous study designs. Our aim was compare the diagnostic of versus detecting malignant tumors salivary gland tissue-specific diagnosis in a single tertiary hospital. <h3>MATERIALS METHODS:</h3> This retrospective approved by our institutional review board informed consent waived. Four hundred twelve...

The increased cochlear signal on FLAIR images in patients with acoustic neuroma is explained by an concentration of protein the perilymphatic space. However, there still debate whether a correlation between and degree hearing disturbance neuroma. Our aim was to investigate clinical significance 3D according extent large patient cohort.This retrospective study enrolled 102 neuroma, who were divided into 2 groups based tumor location; 22 tumors confined internal auditory canal 80 extended...

Objective: To investigate CT and 18 F-flurodeoxyglucose ( F-FDG) positron-emission tomography/CT findings of primary endobronchial marginal zone B-cell lymphoma the bronchus-associated lymphoid tissue (BALT).Materials Methods: From June 2006 through April 2012, seven patients (six female, one male; age range, 21-61 years; mean age, 49 years) were examined who pathologically diagnosed with BALT.We evaluated locations characteristics lesions on F-FDG-PET/CT scans.The classified into following...

To investigate the correlation between perfusion- and diffusion-related parameters from intravoxel incoherent motion (IVIM) those dynamic contrast-enhanced MR imaging (DCE-MRI) diffusion-weighted in tumors normal muscles of head neck.We retrospectively enrolled 20 consecutive patients with neck performed using a 3T scanner. Tissue diffusivity (D), pseudo-diffusion coefficient (D(*)), perfusion fraction (f) were derived bi-exponential fitting IVIM data obtained 14 different b-values three...

<h3>BACKGROUND AND PURPOSE:</h3> According to recent research, modern MR imaging can detect the presense of abnormalities on labyrinthine. Our aim was report patterns and prognostic role abnormal findings labyrinthine in patients with sudden sensorineural hearing loss. <h3>MATERIALS METHODS:</h3> This study comprised 113 who were diagnosed unilateral loss underwent 3T imaging, including pre-/postcontrast 3D fluid-attenuated inversion recovery T1-weighted imaging. We analyzed correlated them...

To explore the added value of histogram analysis apparent diffusion coefficient (ADC) values over magnetic resonance (MR) imaging and fluorine 18 ((18)F) fluorodeoxyglucose (FDG) positron emission tomography (PET)/computed (CT) for detection occult palatine tonsil squamous cell carcinoma (SCC) in patients with cervical nodal metastasis from a cancer an unknown primary site.The institutional review board approved this retrospective study, requirement informed consent was waived. Differences...

To investigate the clinical significance of three-dimensional-fluid-attenuated inversion recovery (3D-FLAIR) magnetic resonance imaging (MRI) findings in patients with Ramsay-Hunt syndrome (RHS).Case series.We enrolled 28 consecutive RHS temporal bone MRI. Initial and outcome were assessed by House-Brackmann (HB) scales, electroneuronography (ENoG), pure tone audiometry (PTA). Two radiologists evaluated presence abnormalities on pre-/postcontrast 3D-FLAIR for cranial nerve (CN)-VII, CN-VIII,...

In the current study, we examined whether selenium supplementation during iodine-131 (131I) treatment had a radio-protective effect on salivary glands.Sixteen patients with differentiated thyroid cancer were prospectively enrolled in study. Patients after total thyroidectomy, before 131I treatment, divided into two groups; 8 group and control group. received 300νg of orally for 10 days, from 3 days to 6 treatment. The placebo over same period. To assess gland function, scintigraphy was...

Assessment of lymph node (LN) status in patients with papillary thyroid carcinoma (PTC) is often troublesome because cervical LNs indeterminate US (ultrasound) features. We aimed to explore whether Superb Microvascular Imaging (SMI) could be helpful for distinguishing metastasis from when combined power Doppler (PDUS). From 353 consecutive PTC, characterized as by PDUS were evaluated SMI distinguish them metastasis. Indeterminate reclassified according the SMI, malignancy risk each category...

Treatment failures in head and neck cancer patients are mainly related to locoregional tumor recurrence. The objective of the present study was evaluate diagnostic accuracy model-free dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) detect local recurrence during surveillance patients.Our retrospective enrolled 24 with primary who had undergone definitive treatment. Patients were grouped into (n = 12) or posttreatment change groups according results biopsy clinicoradiologic...

Purpose To assess a volume-weighted voxel-based multiparametric (MP) clustering method as an imaging biomarker to differentiate recurrent glioblastoma from delayed radiation necrosis. Materials and Methods The institutional review board approved this retrospective study waived the informed consent requirement. Seventy-five patients with pathologic analysis-confirmed (n = 42) or necrosis 33) who presented enlarged contrast material-enhanced lesions at magnetic resonance (MR) after they...

The aim of this multicenter study was to investigate the malignancy risk minimally cystic thyroid nodules (MCTNs) using cyto-histopathologic diagnoses as reference standard.From June 2015 September 2015, 5,601 (≥1 cm) from 4,989 consecutive patients who underwent ultrasonography (US) at 26 institutions were retrospectively analyzed. Each nodule categorized according its proportion: purely solid, (≤10%), and partially (>10%). MCTNs compared with those solid (PCTNs). assessed echogenicity...

Objective: To identify superior cervical sympathetic ganglion (SCSG) and describe their characteristic MR appearance using 3T-MRI. Materials Methods:In this prospective study, we recruited 53 consecutive patients without history of head neck irradiation.Using anatomic location based on literature review, both sides the were evaluated to SCSGs in consensus.SCSGs divided into definite (medial internal carotid artery [ICA] lateral longus capitis muscle [LCM]) probable relative ICA LCM.Two...

In cone-beam computed tomography (CBCT), the minimum threshold of gray value segmentation is set to convert CBCT images 3D mesh reconstruction model. This study aimed assess accuracy image registration optical scans reconstructions created by different thresholds grey values in partial edentulous jaw conditions. a dentate was reconstructed models using three (−500, 500, and 1500), partially with numbers remaining teeth (4, 8, 12) were made from each To merge scan data, registered respective...

Various risk stratification systems show discrepancies in the ultrasound lexicon of nodule echotexture and hypoechogenicity. This study aimed to determine malignancy thyroid nodules according their degree From June September 2015, we retrospectively evaluated 5601 with final diagnoses from 26 institutions. Nodules were stratified (homogeneous vs. heterogeneous) hypoechogenicity (mild, moderate, or marked). We calculated composition suspicious features. Heterogeneous hypoechoic showed a...

Objective To describe computed tomographic (CT) findings of anthracofibrosis involving lung parenchyma. Methods Retrospectively reviewed CT 34 patients with parenchyma, showing deposition anthracotic pigmentation focal fibrotic lesions on histologic examination. Results Types included nodules (41.2%), masses (55.9%), and consolidation (2.9%). The mean size was 26.8 mm. most common location right upper lobe (n = 10). Satellite were identified in 5 patients, calcification 11 necrotic low...

Adult-onset Alexander Disease (AOAD) is a rare genetically determined leukoencephalopathy that presents with ataxia, spastic paraparesis, or brain stem signs including speech abnormalities, swallowing difficulties, and frequent vomiting. The diagnosis of AOAD frequently proposed based on the findings MRI. We demonstrate two cases (37-year-old female 61-year-old female) characteristic imaging changes in follow-up MRI patients AOAD, which were confirmed via glial fibrillary acidic protein...

Although advanced magnetic resonance imaging (MRI) techniques provide useful information for the differential diagnosis of intra-axial mass-like lesions, specific diagnostic role multimodal MRI over conventional (CMRI) alone in lesions from a large heterogeneous cohort has not been studied. In this study, we aimed to determine added value joint approach diffusion-weighted (DWI) and dynamic-susceptibility-contrast perfusion (DSC-PWI) comparing them with CMRI alone. Furthermore, performed...