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https://www.readbyqxmd.com/read/28110503/impact-of-pancreatic-cyst-fluid-cea-levels-on-the-classification-of-pancreatic-cysts-using-the-papanicolaou-society-of-cytology-terminology-system-for-pancreaticobiliary-cytology
#1
Mauro Ajaj Saieg, Valerie Munson, Shanna Colletti, Aziza Nassar
BACKGROUND: The new proposed classification for pancreaticobiliary cytology has advocated the use of carcinoembryonic antigen (CEA) analysis of cyst fluid as an ancillary diagnostic tool for the determination of mucinous neoplasms in pancreatic cyst aspirates. We aimed to investigate the effect of CEA cyst fluid analysis on cases primarily called negative or nondiagnostic and on the sensitivity and specificity of the method. METHODS: We retrospectively identified and collected all pancreatic cyst aspirates from 2010 to 2014 at Mayo Clinic, Jacksonville, Florida, along with available corresponding surgical diagnoses...
February 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28110502/accuracy-and-reproducibility-of-nuclear-cytoplasmic-ratio-assessments-in-urinary-cytology-specimens
#2
Lester J Layfield, Magda Esebua, Shellaine R Frazier, Richard D Hammer, William W Bivin, Van Nguyen, Ilker Ersoy, Robert L Schmidt
BACKGROUND: Evaluation of the nuclear to cytoplasmic ratio is commonly used for assessment of the presence of malignancy and for grading and typing of malignant neoplasms. Despite its widespread usage, little information exists regarding the accuracy and reproducibility of non-automated assessment. METHODS: Forty-seven cells obtained from Papanicolaou stained urine cytologies were assessed by quantitative image analysis for nuclear area and cell area. The nuclear/cytoplasmic ratio was calculated...
February 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28110480/casubtype-an-r-package-to-identify-gene-sets-predictive-of-cancer-subtypes-and-clinical-outcomes
#3
Hualei Kong, Pan Tong, Xiaodong Zhao, Jielin Sun, Hua Li
In the past decade, molecular classification of cancer has gained high popularity owing to its high predictive power on clinical outcomes as compared with traditional methods commonly used in clinical practice. In particular, using gene expression profiles, recent studies have successfully identified a number of gene sets for the delineation of cancer subtypes that are associated with distinct prognosis. However, identification of such gene sets remains a laborious task due to the lack of tools with flexibility, integration and ease of use...
January 21, 2017: Interdisciplinary Sciences, Computational Life Sciences
https://www.readbyqxmd.com/read/28110476/three-dimensional-texture-features-from-intensity-and-high-order-derivative-maps-for-the-discrimination-between-bladder-tumors-and-wall-tissues-via-mri
#4
Xiaopan Xu, Xi Zhang, Qiang Tian, Guopeng Zhang, Yang Liu, Guangbin Cui, Jiang Meng, Yuxia Wu, Tianshuai Liu, Zengyue Yang, Hongbing Lu
PURPOSE: This study aims to determine the three-dimensional (3D) texture features extracted from intensity and high-order derivative maps that could reflect textural differences between bladder tumors and wall tissues, and propose a noninvasive, image-based strategy for bladder tumor differentiation preoperatively. METHODS: A total of 62 cancerous and 62 wall volumes of interest (VOI) were extracted from T2-weighted MRI datasets of 62 patients with pathologically confirmed bladder cancer...
January 21, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28110475/pattern-recognition-of-spectral-entropy-features-for-detection-of-alcoholic-and-control-visual-erp-s-in-multichannel-eegs
#5
T K Padma Shri, N Sriraam
This paper presents a novel ranking method to select spectral entropy (SE) features that discriminate alcoholic and control visual event-related potentials (ERP'S) in gamma sub-band (30-55 Hz) derived from a 64-channel electroencephalogram (EEG) recording. The ranking is based on a t test statistic that rejects the null hypothesis that the group means of SE values in alcoholics and controls are identical. The SE features with high ranks are indicative of maximal separation between their group means. Various sizes of top ranked feature subsets are evaluated by applying principal component analysis (PCA) and k-nearest neighbor (k-NN) classification...
January 21, 2017: Brain Informatics
https://www.readbyqxmd.com/read/28110356/predicting-conversion-to-glaucoma-using-standard-automated-perimetry-and-frequency-doubling-technology
#6
Genichiro Takahashi, Shaban Demirel, Chris A Johnson
PURPOSE: To test the hypothesis that development of glaucomatous visual fields can be predicted several years earlier from prior visual field information. METHODS: One-hundred and seven eyes with glaucomatous optic neuropathy (n = 47 eyes) or which were suspicious for glaucoma (n = 60) were prospectively enrolled in a longitudinal study. Visual fields were evaluated on an annual basis using standard automated perimetry (SAP), the original version of frequency doubling technology (FDT) perimetry, and a custom version of FDT that used the 24-2 stimulus pattern...
January 21, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28110346/prognostic-value-of-molecular-and-imaging-biomarkers-in-patients-with-supratentorial-glioma
#7
Egesta Lopci, Marco Riva, Laura Olivari, Fabio Raneri, Riccardo Soffietti, Arnoldo Piccardo, Alberto Bizzi, Pierina Navarria, Anna Maria Ascolese, Roberta Rudà, Bethania Fernandes, Federico Pessina, Marco Grimaldi, Matteo Simonelli, Marco Rossi, Tommaso Alfieri, Paolo Andrea Zucali, Marta Scorsetti, Lorenzo Bello, Arturo Chiti
PURPOSE: We evaluated the relationship between (11)C-methionine PET ((11)C-METH PET) findings and molecular biomarkers in patients with supratentorial glioma who underwent surgery. METHODS: A consecutive series of 109 patients with pathologically proven glioma (64 men, 45 women; median age 43 years) referred to our Institution from March 2012 to January 2015 for tumour resection and who underwent preoperative (11)C-METH PET were analysed. Semiquantitative evaluation of the (11)C-METH PET images included SUVmax, region of interest-to-normal brain SUV ratio (SUVratio) and metabolic tumour volume (MTV)...
January 21, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28110322/classification-of-facial-wrinkles-among-chinese-women
#8
Zhang Jiechen, Hou Wei, Feng Suying, Chen Xiangsheng, Wang Hongwei
It is generally recognized that Caucasians and Asians have different skin aging features. The aim of this study was to develop a facial wrinkle grading scale for Chinese women. Standard photographs were taken of 242 Chinese women. Six sets of 0 to 9 wrinkle scales with reference photographs and descriptions were selected, including grading scales for resting and hyperkinetic crow's feet, frontalis lines, glabellar frown lines, and nasolabial folds. To identify the scale by objective quantitative measurement, skin surface measurements from the Visioscan(®) VC98 were used...
October 17, 2016: Journal of Biomedical Research
https://www.readbyqxmd.com/read/28110320/acute-on-chronic-liver-failure-recent-update
#9
Alam Azeem, Chun Suen Ka, Ma Daqing
Acute on chronic liver failure (ACLF) was first described in 1995 as a clinical syndrome distinct to classic acute decompensation. Characterized by complications of decompensation, ACLF occurs on a background of chronic liver dysfunction and is associated with high rates of organ failure and significant short-term mortality estimated between 45% and 90%. Despite the clinical relevance of the condition, it still remains largely undefined with continued disagreement regarding its precise etiological factors, clinical course, prognostic criteria and management pathways...
January 19, 2017: Journal of Biomedical Research
https://www.readbyqxmd.com/read/28110204/new-classification-of-epilepsy-related-neoplasms-the-clinical-perspective
#10
REVIEW
Burkhard S Kasper, Ekkehard M Kasper
Neoplastic CNS lesions are a common cause of focal epilepsy refractory to anticonvulsant treatment, i.e. long-term epilepsy-associated tumors (LEATs). Epileptogenic tumors encompass a variety of intriguing lesions, e.g. dysembryoplastic neuroepithelial tumors or gangliogliomas, which differ from more common CNS neoplasms in their clinical context as well as on histopathology. Long-term epilepsy-associated tumor classification is a rapidly evolving issue in surgical neuropathology, with new entities still being elucidated...
January 18, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28110145/virusseeker-a-computational-pipeline-for-virus-discovery-and-virome-composition-analysis
#11
Guoyan Zhao, Guang Wu, Efrem S Lim, Lindsay Droit, Siddharth Krishnamurthy, Dan H Barouch, Herbert W Virgin, David Wang
The advent of Next Generation Sequencing (NGS) has vastly increased our ability to discover novel viruses and to systematically define the spectrum of viruses present in a given specimen. Such studies have led to the discovery of novel viral pathogens as well as broader associations of the virome with diverse diseases including inflammatory bowel disease, severe acute malnutrition and HIV/AIDS. Critical to the success of these efforts are robust bioinformatic pipelines for rapid classification of microbial sequences...
January 18, 2017: Virology
https://www.readbyqxmd.com/read/28109936/precision-phenotyping-in-heart-failure-and-pattern-clustering-of-ultrasound-data-for-the-assessment-of-diastolic-dysfunction
#12
Alaa Mabrouk Salem Omar, Sukrit Narula, Mohamed Ahmed Abdel Rahman, Gianni Pedrizzetti, Hala Raslan, Osama Rifaie, Jagat Narula, Partho P Sengupta
OBJECTIVES: The aim of this study was to investigate whether cluster analysis of left atrial and left ventricular (LV) mechanical deformation parameters provide sufficient information for Doppler-independent assessment of LV diastolic function. BACKGROUND: Medical imaging produces substantial phenotyping data, and superior computational analyses could allow automated classification of repetitive patterns into patient groups with similar behavior. METHODS: The authors performed a cluster analysis and developed a model of LV diastolic function from an initial exploratory cohort of 130 patients that was subsequently tested in a prospective cohort of 44 patients undergoing cardiac catheterization...
January 11, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28109895/pilot-study-of-the-mirabilis-system-prototype-for-rapid-noninvasive-uterine-fibroid-treatment-using-an-ultrasound-guided-volumetric-shell-ablation-technique
#13
Jessica E Parsons, Michael P H Lau, Patrick J Martin, Joel J Islas Lagos, Juan M Aguilar Aguirre, José G Garza Leal
STUDY OBJECTIVE: The primary objective of this pilot study was to evaluate the safety and acute tissue ablation efficacy of a transabdominal high-intensity focused ultrasound (HIFU) prototype device that uses ultrasound imaging guidance for rapid noninvasive ablation of uterine fibroids. The secondary objective was to assess preliminary fibroid-related symptom improvement and fibroid volume reduction at 3 - 6 months post-treatment in subsets of patients. DESIGN: Multi-center prospective single-arm pilot study (Canadian Task Force Classification II-2) SETTING: University-affiliated teaching hospital and private community hospital PATIENTS: Women with a diagnosis of symptomatic uterine fibroids planning to undergo hysterectomy INTERVENTIONS: Seventy-three (73) women underwent transabdominal ultrasound-guided HIFU treatment using a volumetric ablation technique referred to as 'shell ablation,' in which the HIFU energy is deposited in patterns that partially encapsulate the peripheral region of the targeted fibroid(s)...
January 18, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28109832/a-novel-hybrid-auditory-bci-paradigm-combining-assr-and-p300
#14
Netiwit Kaongoen, Sungho Jo
BACKGROUND: Brain-computer interface (BCI) is a technology that provides an alternative way of communication by translating brain activities into digital commands. Due to the incapability of using the vision-dependent BCI for patients who have visual impairment, auditory stimuli have been used to substitute the conventional visual stimuli. NEW METHOD: This paper introduces a hybrid auditory BCI that utilizes and combines auditory steady state response (ASSR) and spatial-auditory P300 BCI to improve the performance for the auditory BCI system...
January 18, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/28109769/molecular-typing-and-diagnosis-of-anaplasma-spp-closely-related-to-anaplasma-phagocytophilum-in-ruminants-from-tunisia
#15
Mourad Ben Said, Hanène Belkahia, Narjesse El Mabrouk, Mariem Saidani, Mariem Ben Hassen, Alberto Alberti, Rosanna Zobba, Skander Bouattour, Ali Bouattour, Lilia Messadi
Accurate diagnosis of animal and zoonotic diseases, such as granulocytic anaplasmosis, is crucial to estimate risk during control programs. In this study, 16S rRNA nested PCR and RFLP assay were combined to investigate the presence of Anaplasma phagocytophilum and genetically related strains (namely A. phagocytophilum-like 1 and 2) in 936 Tunisian ruminants. By using this method, A. phagocytophilum was not detected in any of the tested animals, while A. phagocytophilum-like 1 and A. phagocytophilum-like 2 were detected at variable prevalence rates in sheep, goats and cattle at coinfection rates respectively of 3...
January 16, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28109762/higher-modified-charlson-index-scores-are-associated-with-increased-incidence-of-complications-transfusion-events-and-length-of-stay-following-revision-hip-arthroplasty
#16
Nikita Lakomkin, Vadim Goz, Claudette M Lajam, Richard Iorio, Joseph A Bosco
BACKGROUND: Revision total hip arthroplasty (RHA) has been associated with greater morbidity and length of stay (LOS) compared to primary total hip arthroplasty. Despite this, few validated metrics exist for risk stratification in RHA cohorts. The Charlson Comorbidity Index (CCI) has been associated with complications in total hip arthroplasty, but its utility in revision surgery remains unexplored. The purpose of this study was to examine the relationship between preoperative CCI and a variety of outcome metrics following RHA...
November 17, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28109746/diversity-and-evolution-of-tir-domain-containing-proteins-in-bivalves-and-metazoa-new-insights-from-comparative-genomics
#17
Marco Gerdol, Paola Venier, Paolo Edomi, Alberto Pallavicini
The Toll/interleukin-1 receptor (TIR) domain has a fundamental role in the innate defence response of plants, vertebrate and invertebrate animals. Mostly found in the cytosolic side of membrane-bound receptor proteins, it mediates the intracellular signalling upon pathogen recognition via heterotypic interactions. Although a number of TIR-domain-containing (TIR-DC) proteins have been characterized in vertebrates, their evolutionary relationships and functional role in protostomes are still largely unknown. Due to the high abundance and diversity of TIR-DC proteins in bivalve molluscs, we investigated this class of marine invertebrates as a case study...
January 18, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28109701/a-case-of-tracheobronchomegaly
#18
Jirat Chenbhanich, Juan Villa-Camacho, Jason Konter
Tracheobronchomegaly (Mounier-Kuhn syndrome) is a rare condition characterized by an abnormally enlarged trachea and main bronchi. Herein, we present a case of 79-year-old male with idiopathic pulmonary fibrosis and acute hypoxemic respiratory failure due to multilobar pneumonia. Computed tomography of the chest demonstrated a markedly dilated trachea, with the transverse diameter of 31mm and the sagittal diameter of 30mm. The clinical manifestations as well as its diagnosis, classification, and treatment are discussed...
January 18, 2017: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/28109652/epilepsy-in-patients-with-grin2a-alterations-genetics-neurodevelopment-epileptic-phenotype-and-response-to-anticonvulsive-drugs
#19
C von Stülpnagel, M Ensslen, R S Møller, D K Pal, S Masnada, P Veggiotti, E Piazza, M Dreesmann, T Hartlieb, T Herberhold, E Hughes, M Koch, C Kutzer, K Hoertnagel, J Nitanda, M Pohl, K Rostásy, T B Haack, K Stöhr, G Kluger, I Borggraefe
OBJECTIVE: To delineate the genetic, neurodevelopmental and epileptic spectrum associated with GRIN2A alterations with emphasis on epilepsy treatment. METHODS: Retrospective study of 19 patients (7 females; age: 1-38 years; mean 10.1 years) with epilepsy and GRIN2A alteration. Genetic variants were classified according to the guidelines and recommendations of the American College of Medical Genetics (ACMG). Clinical findings including epilepsy classification, treatment, EEG findings, early childhood development and neurodevelopmental outcome were collected with an electronic questionnaire...
January 14, 2017: European Journal of Paediatric Neurology: EJPN
https://www.readbyqxmd.com/read/28109578/liver-fibrogenesis-marker-7s-domain-of-collagen-type-iv-in-patients-with-acutely-decompensated-heart-failure-correlates-prognostic-value-and-time-course
#20
Kazuya Nagao, Akinori Tamura, Takeshi Morimoto, Kiyotaka Shimamura, Hiroshi Yukawa, Haruyasu Ito, Fujio Hayashi, Toshinori Makita, Genzou Takemura, Yukihito Sato, Tsukasa Inada, Takeshi Kimura, Masaru Tanaka
BACKGROUND: Congestion in heart failure (HF) induces multiple organ injury, which may cause remodeling of extracellular matrix. We hypothesized that liver fibrogenesis marker, 7S domain of collagen type IV (P4NP 7S) was correlated with congestion and liver injury in HF. METHODS AND RESULTS: We measured serum P4NP 7S in two cohorts. Cohort 1 included 70 patients undergoing catheterization. P4NP 7S was correlated with pulmonary capillary wedge pressure, right ventricular and atrial pressure (r=0...
January 15, 2017: International Journal of Cardiology
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