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https://www.readbyqxmd.com/read/28550740/multi-resolution-classification-of-exhaled-aerosol-images-to-detect-obstructive-lung-diseases-in-small-airways
#1
Jinxiang Xi, Weizhong Zhao, Jiayao Eddie Yuan, Biwei Cao, Linlin Zhao
Exhaled aerosol patterns have been used to detect obstructive respiratory diseases in the upper airways. Signals from small airway diseases are weak and may not manifest themselves in the exhaled aerosol patterns. Therefore, it will be more challenging to detect abnormalities in small airways. The objective of this study is to develop a simulation-based classification model that can accurately classify small airway diseases. The model performance was evaluated in five obstructed models that are located in lung bifurcations G7-9...
May 20, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28550689/a-diagnostic-program-of-vascular-tumor-and-vascular-malformations-in-children-according-to-modern-classification
#2
Iryna Benzar
The aim of the study was to analyze the cohort of inpatient children with vascular anomalies according to the globally accepted classification introduced by the ISSVA. METHODS: The study included 205 inpatient children within the time period of the years 2010-2015. Types of vascular anomalies (VAs), age of patients, diagnostic procedures, and anatomical localization of VAs were analyzed. RESULTS: 65 patients of first year of life had vascular tumors, with prevalence of infantile hemangiomas (IHs) in 57 (87...
May 26, 2017: Acta Medica (Hradec Králové)
https://www.readbyqxmd.com/read/28545452/a-simple-fast-and-inexpensive-method-for-mutation-scanning-of-cftr-gene
#3
Juan Emilio Figueredo Lago, Anny Armas Cayarga, Yaimé Josefina González González, Teresa Collazo Mesa
BACKGROUND: Mutation scanning methods in Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) gene may not distinguish between a Cystic Fibrosis (CF) causing mutation and a benign variant. We have developed a simple and fast method for scanning 14 selected CF-causing mutations which have high frequency in Latin America. METHODS: In a group of 35 samples coming from CF patients previously characterized and using two allele-specific real-time multiplex PCRs targeting wild-type and mutant alleles respectively, we detect the presence of mutations by analyzing the Ct variation...
May 25, 2017: BMC Medical Genetics
https://www.readbyqxmd.com/read/28543093/relationship-between-carotid-atherosclerosis-and-coronary-artery-calcification-in-asymptomatic-diabetic-patients-a-prospective-multicenter-study
#4
Anand Jeevarethinam, Shreenidhi Venuraju, Alain Dumo, Sherezade Ruano, Vishal S Mehta, Miranda Rosenthal, Devaki Nair, Mark Cohen, Daniel Darko, Avijit Lahiri, Roby Rakhit
BACKGROUND: The value of screening sub-clinical atherosclerosis in asymptomatic patients with type 2 diabetes mellitus (T2DM) remains controversial. HYPOTHESIS: An integrated model incorporating carotid intima-media thickness (CIMT) and carotid plaque with traditional risk factors can be used to predict prevalence and severity of coronary artery calcification in asymptomatic T2DM patients. METHODS: A cohort of 262 asymptomatic T2DM patients were prospectively studied with carotid ultrasound to evaluate CIMT and carotid plaque and also a computed tomography coronary artery calcium (CT-CAC) scan...
May 25, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28541862/nonoperative-management-of-the-damaged-spleen-a-community-surgeon-looks-back
#5
Mark L Walker
Blunt spleen injury is usually managed nonoperatively. An 8-year retrospective analysis by one community surgeon was done to provide an overview of the role of CT, angiography, and transfusion in the management algorithm. A total of 2750 patients were screened and 125 patients were identified with spleen injury. Of these 125 patients, 72 were managed without surgery. These were young (mean age 32 ± 16 years) patients with mean Injury Severity Score of 16 ± 8. Angiography was used in 14 patients. These patients received more blood (5 ± 6 vs 2 ± units of packed red blood cells) than their nonangiogram counterparts...
May 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28541665/identification-of-small-molecule-translesion-synthesis-inhibitors-that-target-the-rev1-ct-rir-protein-protein-interaction
#6
Vibhavari Sail, Alessandro A Rizzo, Nimrat Chatterjee, Radha Charan Dash, Zuleyha Ozen, Graham C Walker, Dmitry M Korzhnev, M Kyle Hadden
Translesion synthesis (TLS) is an important mechanism through which proliferating cells tolerate DNA damage during replication. The mutagenic Rev1/Polζ-dependent branch of TLS helps cancer cells survive first-line genotoxic chemotherapy and introduces mutations that can contribute to the acquired resistance so often observed with standard anti-cancer regimens. As such, inhibition of Rev1/Polζ-dependent TLS has recently emerged as a strategy to enhance the efficacy of first-line chemotherapy and reduce the acquisition of chemoresistance by decreasing tumor mutation rate...
May 25, 2017: ACS Chemical Biology
https://www.readbyqxmd.com/read/28538431/immunotherapy-for-lung-cancer-targeting-the-pd-1-pathway
#7
Sam Vafadar
Lung cancer is the third most common cancer in the United States and the top cause of cancer-related mortality in men and women. Despite advances in chemotherapy, molecular therapies, and CT screening, overall survival remains dismal. Additional options and a new treatment paradigm are needed. This article focuses on immunotherapy, a promising new approach targeted at the PD-1 inhibition pathway.
June 2017: JAAPA: Official Journal of the American Academy of Physician Assistants
https://www.readbyqxmd.com/read/28534712/benefit-of-adjunct-universal-rectal-screening-for-chlamydia-genital-infections-in-women-attending-canadian-sexually-transmitted-infection-clinics
#8
Nguyen X Thanh, Ilke Akpinar, Jennifer Gratrix, Sabrina Plitt, Petra Smyczek, Ron Read, Philip Jacobs, Tom Wong, Ameeta E Singh
Adding universal rectal screening to urogenital screening should positively impact rectal Chlamydia trachomatis (CT) incidence in affected populations. A dynamic Markov model was used to evaluate costs and outcomes of three rectal CT screening strategies among women attending sexually transmitted infection clinics in Alberta, Canada: universal urogenital-only screening (UG-only), additional selected (exposure-based) rectal screening (UG+SR), and additional universal rectal screening (UG+UR). The model included two mutually exclusive health states: infected and susceptible...
January 1, 2017: International Journal of STD & AIDS
https://www.readbyqxmd.com/read/28531212/epidemiological-investigation-of-the-relationship-between-common-lower-genital-tract-infections-and-high-risk-human-papillomavirus-infections-among-women-in-beijing-china
#9
Dai Zhang, Ting Li, Lei Chen, Xiaosong Zhang, Gengli Zhao, Zhaohui Liu
BACKGROUND: The incidence of lower genital tract infections in China has been increasing in recent years. The link between high-risk human papillomavirus (HR-HPV) and other sexually transmitted diseases (STDs) remains unclear. METHODS: From March to October 2014, gynecological examinations and questionnaires were conducted on 1218 married women. Cervical secretions and vaginal swab specimens were tested for Chlamydia trachomatis (CT), Neisseria gonorrhoeae (NG), Ureaplasma urealyticum (UU), yeast, clue cells and HR-HPV...
2017: PloS One
https://www.readbyqxmd.com/read/28531136/a-stretchable-electromagnetic-absorber-fabricated-using-screen-printing-technology
#10
Heijun Jeong, Sungjoon Lim
A stretchable electromagnetic absorber fabricated using screen printing technology is proposed in this paper. We used a polydimethylsiloxane (PDMS) substrate to fabricate the stretchable absorber since PDMS exhibits good dielectric properties, flexibility, and restoring capabilities. DuPont PE872 (DuPont, Wilmington, CT, USA), a stretchable silver conductive ink, was used for the screen printing technique. The reflection coefficient of the absorber was measured using a vector network analyzer and a waveguide...
May 21, 2017: Sensors
https://www.readbyqxmd.com/read/28528461/novel-imaging-using-a-touchless-display-for-computer-assisted-hepato-biliary-surgery
#11
Yukio Oshiro, Kenoki Ohuchida, Toshiyuki Okada, Makoto Hashizume, Nobuhiro Ohkohchi
PURPOSE: We developed a touchless display system that allows the user to control the medical imaging software via hand gestures in the air. We conducted this study to verify the effectiveness of this novel touchless display system as a tool for assisting with surgical imaging. METHODS: The patient's computed tomography (CT) data are generally observed on a display during surgery. The "Dr. aeroTAP" touchless display system was developed to generate virtual mouse events based on the position of one hand...
May 20, 2017: Surgery Today
https://www.readbyqxmd.com/read/28522949/patients-with-computed-tomography-proven-acute-diverticulitis-require-follow-up-to-exclude-colorectal-cancer
#12
Shafquat Zaman, Warren Chapman, Imtiyaz Mohammed, Kathryn Gill, Stephen Thomas Ward
BACKGROUND/AIMS: Traditionally, patients with acute diverticulitis undergo follow-up endoscopy to exclude colorectal cancer (CRC). However, its usefulness has been debated in this era of high-resolution computed tomography (CT) diagnosis. We assessed the frequency and outcome of endoscopic follow-up for patients with CT-proven acute diverticulitis, according to the confidence in the CT diagnosis. METHODS: Records of patients with CT-proven acute diverticulitis between October 2007 and March 2014 at Sandwell & West Birmingham Hospitals NHS Trust were retrieved...
April 2017: Intestinal Research
https://www.readbyqxmd.com/read/28520854/declines-in-hpv-associated-high-grade-cervical-lesions-after-introduction-of-hpv-vaccines-in-connecticut-us-2008-2015
#13
Linda M Niccolai, James I Meek, Monica Brackney, James L Hadler, Lynn E Sosa, Daniel M Weinberger
Background: Trends in HPV-associated cervical lesions can provide an indication of vaccine impact. Our purpose was to measure trends in cervical lesions during 2008-2015 and to consider possible explanations including vaccination coverage, changes in screening for cervical cancer, and risk behaviors for acquiring HPV. Methods: Connecticut (CT) implemented mandatory reporting of cervical intraepithelial neoplasia grades 2/3 and adenocarcinoma in situ (CIN2+) in 2008...
May 17, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28520753/comparative-accuracy-of-ct-perfusion-in-diagnosing-acute-ischemic-stroke-a-systematic-review-of-27-trials
#14
Jiantong Shen, Xianglian Li, Youping Li, Bing Wu
OBJECTIVE: To systematically evaluate and compare the diagnostic accuracy of CT perfusion (CTP), non-enhanced computed tomography (NCCT) and computed tomography angiography (CTA) in detecting acute ischemic stroke. METHODS: We searched seven databases and screened the reference lists of the included studies. The risk of bias in the study quality was assessed using QUADASII. We produced paired forest plots in RevMan to show the variation of the sensitivity and specificity estimates together with their 95% CI...
2017: PloS One
https://www.readbyqxmd.com/read/28518066/scaled-anatomical-model-creation-of-biomedical-tomographic-imaging-data-and-associated-labels-for-subsequent-sub-surface-laser-engraving-ssle-of-glass-crystals
#15
Aislinn M Betts, Matthew T McGoldrick, Christopher R Dethlefs, Justin Piotrowicz, Tony Van Avermaete, Jeff Maki, Steve Gerstler, W M Leevy
Biomedical imaging modalities like computed tomography (CT) and magnetic resonance (MR) provide excellent platforms for collecting three-dimensional data sets of patient or specimen anatomy in clinical or preclinical settings. However, the use of a virtual, on-screen display limits the ability of these tomographic images to fully convey the anatomical information embedded within. One solution is to interface a biomedical imaging data set with 3D printing technology to generate a physical replica. Here we detail a complementary method to visualize tomographic imaging data with a hand-held model: Sub Surface Laser Engraving (SSLE) of crystal glass...
April 25, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28514755/a-novel-serum-based-biomarker-panel-has-complementary-ability-to-preclude-presence-of-early-lung-cancer-for-low-dose-ct-ldct
#16
Xiaobing Wang, Xiuyi Zhi, Zhaogang Yang, Haimei Tian, Yanfen Li, Mo Li, Wenya Zhao, Chao Zhang, Teng Wang, Jing Liu, Di Shen, Cuining Zheng, Dan Zhao, Sheng Yang, Jun Qi, Hongwu Xin, Alexander Stojadinovic, Itzhak Avital, L James Lee, Jianyu Rao, Wei Zhang
Low Dosage Computerized Tomography (LDCT) has been shown to improve early detection of lung cancer and mortality rates in high-risk individuals, which was, however, limited by specifically coverage for heavy smokers and high rates of false positivity. Here, we aim to investigate a novel biomarker for early detection of lung cancer, and further extend to concentrate high-risk subjects for increasing specificity and coverage of LDCT. We performed retrospective blinded evaluation of lung cancer and healthy controls in training and validation cohorts...
April 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28513235/impact-of-interaction-between-cyp1a1-genetic-polymorphisms-and-smoking-on-coronary-artery-disease-in-the-han-of-china
#17
Dao-Di Peng, Wei Xie, Zai-Xin Yu
AIMS: To investigate the association of CYP1A1 genotype and additional gene-smoking interaction with coronary artery disease (CAD) risk based on a Chinese case-control study. METHODS: A total of 1862 participants (1134 men, 728 women) were selected, including 620 CAD patients and 1242 normal controls. Logistic regression was performed to investigate association of CYP1A1 genotype, gene-gene, and gene-smoking interaction with CAD. Generalized multifactor dimensionality reduction (GMDR) was used to screen the best gene-gene and gene-smoking interaction combination, cross-validation consistency, the testing balanced accuracy, and the sign test, to assess if each selected interaction was calculated...
May 17, 2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/28511430/study-on-the-relation-between-colorectal-cancer-and-gall-bladder-disease
#18
Siddharth Gosavi, R Rama Mishra, Vsm Praveen Kumar
INTRODUCTION: Colorectal cancer is cancer of the large intestine, the lower part of digestive system which includes the sigmoid colon and rectum. AIM: To study the relation of incidence of colorectal cancer with previous gall bladder disease or post-cholecystectomy status, a relation between gall bladder disease and smoking in particular and the most common region of colon involved in colorectal cancer in gall bladder disease and non-gall bladder disease patients...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28511161/-the-diagnostics-and-clinical-pattern-of-nonalcoholic-fatty-liver-disease-in-patients-with-pre-diabetes-and-type-2-diabetes-and-obesity
#19
Ксенія І Чубірко
INTRODUCTION: The data of epidemiological researches confirm the tendency in increasing of non alcoholic fatty liver disease (NAFLD) in patients with insulin resistance which occurs because of obesity, diabetes type 2 and metabolic syndrome. AIM: Optimization of diagnostic and treatment efficacy in patients with non alcoholic steatosis and steatohepatitis on the background of obesity. MATERIALS AND METHODS: General clinical examination of patients, laboratory and instrumental methods ( fatty liver index, non invasive assessment of liver, morphology, electrocardiography, treadmillergometry, ultrasound examination of abdominal organs, liver elastography,CT,MRI, methods of statistical analysis...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28507634/multi-system-complications-after-intravenous-cocaine-abuse
#20
Lidija Petkovska, Andon Chibishev, Aleksandra Stevcevska, Ivica Smokovski, Dusan Petkovski, Emilija Antova
BACKGROUND: Use and abuse of cocaine are associated with numerous adverse effects, independent of the route of administration. More severe conditions of poisoning, however, are observed after cocaine intravenous administration. AIM: We present a case of severe poisoning after violent intravenous injection of cocaine, but with a good outcome. CASE PRESENTATION: Cocaine was intravenously (i.v.) administered in 16-years old female patient as a homicide attempt...
April 15, 2017: Open Access Macedonian Journal of Medical Sciences
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