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https://www.readbyqxmd.com/read/29679847/deep-learning-in-mammography-and-breast-histology-an-overview-and-future-trends
#1
Azam Hamidinekoo, Erika Denton, Andrik Rampun, Kate Honnor, Reyer Zwiggelaar
Recent improvements in biomedical image analysis using deep learning based neural networks could be exploited to enhance the performance of Computer Aided Diagnosis (CAD) systems. Considering the importance of breast cancer worldwide and the promising results reported by deep learning based methods in breast imaging, an overview of the recent state-of-the-art deep learning based CAD systems developed for mammography and breast histopathology images is presented. In this study, the relationship between mammography and histopathology phenotypes is described, which takes biological aspects into account...
March 26, 2018: Medical Image Analysis
https://www.readbyqxmd.com/read/29679809/colonic-ischemia-mimicking-obstruction-due-to-sigmoid-colon-cancer-a-case-report
#2
Jiro Kimura, Alan Kawarai Lefor, Tadao Kubota
INTRODUCTION: Colonic ischemia is challenging to diagnose preoperatively. We present a patient with colonic ischemia, initially considered to have colonic obstruction. We review the history, physical findings, imaging, operative documents and postoperative diagnosis of this patient with an atypical presentation of colonic ischemia. PRESENTATION OF CASE: A 74-year old female presented with dyspnea on exertion and melena. A tumor in the sigmoid colon was identified by colonoscopy and biopsy showed adenocarcinoma...
April 16, 2018: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29679780/diagnostic-accuracy-of-mdct-in-differentiating-gallbladder-cancer-from-acute-and-xanthogranulomatous-cholecystitis
#3
Ashish P Wasnik, Mathew S Davenport, Ravi K Kaza, William J Weadock, Aaron Udager, Nahid Keshavarzi, Bin Nan, Katherine E Maturen
OBJECTIVE: To determine the diagnostic accuracy of multi-detector CT (MDCT) for differentiating gallbladder cancer from acute and xanthogranulomatous cholecystitis using previously described imaging features. METHODS: In this IRB approved HIPAA-compliant retrospective cohort study, contrast-enhanced MDCT of histologically confirmed acute cholecystitis (n = 17), xanthogranulomatous cholecystitis (n = 25), and gallbladder cancer (n = 18) were reviewed independently by three abdominal radiologists blinded to outcome...
April 14, 2018: Clinical Imaging
https://www.readbyqxmd.com/read/29679754/serum-25-hydroxyvitamin-d-and-breast-cancer-risk-by-pathological-subtype-mcc-spain
#4
Virginia Lope, Adela Castelló, Antonio Mena-Bravo, Pilar Amiano, Nuria Aragonés, Tania Fernández-Villa, Marcela Guevara, Trinidad Dierssen-Sotos, Guillermo Fernandez-Tardón, Gemma Castaño-Vinyals, Rafael Marcos-Gragera, Víctor Moreno, Dolores Salas-Trejo, Marian Diaz-Santos, Madalen Oribe, Isabel Romieu, Manolis Kogevinas, Feliciano Priego-Capote, Beatriz Pérez-Gómez, Marina Pollán
Epidemiologic evidence on the association between vitamin D and breast cancer is still inconclusive. This study analyzes the association between serum 25-hydroxyvitamin D (25(OH)D) and breast cancer risk by pathologic subtype, stage at diagnosis and specific breast cancer risk factors. We conducted a population-based multicase-control study where 546 histologically-confirmed breast cancer cases and 558 population controls, frequently matched by geographic area, age and body mass index, were recruited in 12 Spanish provinces (MCC-Spain)...
April 18, 2018: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29679728/magnetic-resonance-imaging-of-the-lumbar-spine-determining-clinical-impact-and-potential-harm-from-overuse
#5
Nathan M Wnuk, Tarik K Alkasab, Daniel I Rosenthal
BACKGROUND: Lumbar spine MRI is frequently said to be "overused" in the evaluation of low-back pain, yet data concerning the extent of overuse and on potential harmful effects are lacking. PURPOSE: To determine the proportion of examinations with a detectable impact on patient care (actionable outcomes). STUDY DESIGN: Retrospective cohort study PATIENT SAMPLE: 5,365 outpatient lumbar spine MR examinations OUTCOME MEASURES: Actionable outcomes included: 1) findings leading to an intervention making use of anatomical information such as surgery; 2) new diagnoses of cancer, infection, or fracture; or 3) following known lumbar spine pathology...
April 18, 2018: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29679626/microrna-expression-profile-in-plasma-from-type-1-diabetic-patients-case-control-study-and-bioinformatic-analysis
#6
Taís S Assmann, Mariana Recamonde-Mendoza, Márcia Puñales, Balduíno Tschiedel, Luís H Canani, Daisy Crispim
AIMS: To investigate a miRNA expression profile in plasma of type 1 diabetes (T1DM) patients and control subjects and analyze the putative pathways involved. METHODS: Expressions of 48 miRNAs were analyzed in plasma of 33 T1DM patients and 26 age-and-gender-matched controls using Stem-loop RT-PreAmp PCR and TaqMan Low Density Arrays (Thermo Fisher Scientific). Five dysregulated miRNAs were then chosen for validation in an independent sample of 27 T1DM patients and 14 controls, using RT-qPCR...
April 18, 2018: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/29679618/is-it-time-to-perform-only-mri-targeted-cores-our-experience-in-1032-men-submitted-to-prostate-biopsy
#7
Pietro Pepe, Antonio Garufi, Gian Domenico Priolo, Antonio Galia, Filippo Fraggetta, Michele Pennisi
PURPOSE: Diagnostic accuracy of mpMRI (multiparametric magnetic resonance imaging) in the diagnosis of clinically significant prostate cancer (csPCa) has been evaluated and compared with transperineal saturation prostate biopsy (SPBx). MATERIALS AND METHODS: From January 2011 to Febraury 2018 1032 men (median age 63 years) with median PSA of 8.6 ng/ml underwent repeat SPBx (reference test) for the suspicion of cancer. All the patients underwent 3.0 Tesla pelvic mpMRI before SPBx and the lesions with PI-RADS (Prostate Imaging-Reporting and Data System) score ≥ 3 were submitted to additional targeted fusion prostate biopsy (TPBx)...
April 18, 2018: Journal of Urology
https://www.readbyqxmd.com/read/29679610/mutated-mitf-e87r-in-melanoma-enhances-tumor-progression-via-s100a4
#8
Alice Nordlinger, Shani Dror, Abdel Elkahloun, Justine Del Rio, Elisa Stubbs, Tami Golan, Hagar Malcov, Todd D Pricket, Julia C Cronin, Shivang Parikh, Sapir Labes, Laetitia Thomas, Gal Yankovitz, Yuval Tabach, Carmit Levy, Yardena Samuels, Mehdi Khaled
Melanoma, a melanocyte origin neoplasm, is the most lethal type of skin cancer and incidence is increasing. Several familial and somatic mutations have been identified in the gene encoding the melanocyte lineage master regulator, microphthalmia-associated transcription factor (MITF); however, the neoplastic mechanisms of these mutant MITF variants are mostly unknown. Here, by performing unbiased analysis of the transcriptomes in cells expressing mutant MITF, we identified calcium-binding protein S100A4, as a downstream target of MITF-E87R...
April 18, 2018: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/29679605/circulating-cell-free-dna-in-patients-with-alveolar-echinococcosis
#9
Alice Baraquin, Eric Hervouet, Carine Richou, Pierre Flori, Paul Peixoto, Amel Azizi, Eric Delabrousse, Oleg Blagosklonov, Gerald Umhang, Solange Bresson-Hadni, Benoit Valot, Frédéric Grenouillet
Alveolar echinococcosis (AE) is a parasitic disease, due to Echinococcus multilocularis. Often compared to liver cancer, it develops by infiltration from its primary site to the surrounding tissue, and can then metastasize to other organs. Detection of circulating cell-free DNA (ccfDNA) is a useful analytical tool in oncology, for diagnosis, prognosis, and therapy monitoring. This study sought to investigate the presence of ccfDNA in patients with AE, and its potential usefulness for the evaluation of treatment efficiency...
April 18, 2018: Molecular and Biochemical Parasitology
https://www.readbyqxmd.com/read/29679601/adoption-of-pre-biopsy-magnetic-resonance-imaging-for-men-undergoing-prostate-biopsy-in-the-united-states
#10
Wen Liu, Dattatraya Patil, David H Howard, Renee Moore, Heqiong Wang, Martin G Sanda, Christopher P Filson
OBJECTIVES: To assess adoption of pre-biopsy prostate MRI in the United States and evaluate factors associated with MRI-Bx use. Prior reports have shown improved cancer detection with magnetic resonance image-guided prostate biopsies (MRI-Bx) vs. transrectal ultrasound-guided methods (TRUS-Bx). Population-based trends of their use and outcomes have not been previously characterized. METHODS: Using private insurance claims (2009-2015), we identified men who underwent prostate biopsy...
April 18, 2018: Urology
https://www.readbyqxmd.com/read/29679420/a-dual-label-time-resolved-fluorescence-immunoassay-for-the-simultaneous-determination-of-carcino-embryonic-antigen-and-squamous-cell-carcinoma-antigen
#11
Qian Mao, Xiaohong Liu, Jingwen Ye, Huankun Liang, Binxian Li, Xinyi Sun, Lin Sun, Yuman Sun, Xiaomei Mu, Laiqing Li
Among women worldwide, cervical cancer is the second-most common cancer, and cervical smears and DNA detection have low sensitivity or are too expensive. The concentrations of carcino-embryonic antigen (CEA) and squamous cell carcinoma (SCC) in the serum were detected using a sandwich immunoassay. The CEA and SCC in the serum were captured by anti-CEA and anti-SCC antibodies. After combining other anti-CEA- and anti-SCC-labeled antibodies with europium (III) (Eu3+ ) and samarium (III) (Sm3+ ) chelates, CEA and SCC were detected with time-resolved fluorometry (TRF)...
April 20, 2018: Biotechnology and Applied Biochemistry
https://www.readbyqxmd.com/read/29679368/quality-of-life-of-patients-with-gastrointestinal-cancers-undergoing-chemotherapy
#12
Ilufredo Y Tantoy, Bruce A Cooper, Anand Dhruva, Janine Cataldo, Steven M Paul, Yvette P Conley, Marilyn Hammer, Kord M Kober, Jon D Levine, Christine Miaskowski
PURPOSE: Findings regarding changes in the quality of life (QOL) of patients with gastrointestinal cancers (GI) undergoing chemotherapy (CTX) are inconclusive. Purpose was to evaluate for changes in QOL scores of patients with GI cancers over two cycles of CTX. METHODS: Patients (n = 397) completed disease-specific [i.e., Quality of Life-Scale-Patient Version (QOL-PV)] and generic [12-item Medical Outcomes Study Short Form Survey (SF-12)] measures of QOL a total of six times over two cycles of CTX...
April 21, 2018: Quality of Life Research
https://www.readbyqxmd.com/read/29679366/blood-group-and-incidence-of-asthma-and-chronic-obstructive-pulmonary-disease
#13
Bożena Mroczek, Zygmunt Sitko, Agnieszka Sujewicz, Weronika Wolińska, Iwona Karpeta-Pawlak, Donata Kurpas
Chronic respiratory diseases are determined by genetic predisposition, and environmental and socioeconomic variables. One genetic factor underlying susceptibility to such diseases can be the ABO blood group system. The purpose of this study was to investigate the hypothesis that there would be a relationship between the blood group and risk of developing asthma and chronic obstructive pulmonary disease (COPD). We reviewed medical history files of patients with the diagnosis of COPD or asthma, including those suffering from a cancerous disease accompanied by asthma or COPD, hospitalized from January 2016 to July 2017...
April 21, 2018: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29679265/focus-groups-and-in-depth-interviews-to-guide-the-development-of-lung-cancer-screening-informational-materials
#14
Anushree Sharma, Richard O'Connor, Paula Celestino, Samantha Killion, Laurie Griswold-Krupski, Maansi Bansal-Travers
Lung cancer is one of the most lethal cancers in the USA. In 2013, new guidelines issued by the United States Preventive Services Task Force recommended lung cancer screening using low-dose computed tomography among a selected group of high-risk individuals. Specifically, lung cancer screening is recommended for heavy smokers between the ages of 55 to 79, with at least 30 pack-year smoking exposure. Former smokers who meet these guidelines and stopped smoking ≤ 15 years ago are also eligible. There is a need to promote lung cancer screening to increase early diagnosis rates and treatment options, thereby decreasing disease-specific mortality...
April 20, 2018: Journal of Cancer Education: the Official Journal of the American Association for Cancer Education
https://www.readbyqxmd.com/read/29679068/profiling-of-179-mirna-expression-in-blood-plasma-of-lung-cancer-patients-and-cancer-free-individuals
#15
Ivan A Zaporozhchenko, Evgeny S Morozkin, Anastasia A Ponomaryova, Elena Y Rykova, Nadezhda V Cherdyntseva, Aleksandr A Zheravin, Oksana A Pashkovskaya, Evgeny A Pokushalov, Valentin V Vlassov, Pavel P Laktionov
Lung cancer is one of major cancers, and survival of lung cancer patients is dictated by the timely detection and diagnosis. Cell-free circulating miRNAs were proposed as candidate biomarkers for lung cancer. These RNAs are frequently deregulated in lung cancer and can persist in bodily fluids for extended periods of time, shielded from degradation by membrane vesicles and biopolymer complexes. To date, several groups reported the presence of lung tumour-specific subsets of miRNAs in blood. Here we describe the profiling of blood plasma miRNAs in lung cancer patients, healthy individuals and endobronchitis patients using miRCURY LNA miRNA qPCR Serum/Plasma Panel (Exiqon)...
April 20, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29678975/incidence-of-superficial-venous-thrombosis-in-primary-care-and-risk-of-subsequent-venous-thromboembolic-sequelae-a-retrospective-cohort-study-performed-with-routine-healthcare-data-from-the-netherlands
#16
Geert-Jan Geersing, Selma Cazemier, Frans Rutten, David A Fitzmaurice, Arno W Hoes
OBJECTIVES: Recent studies in referred populations of patients with superficial venous thrombosis (SVT) report risks of venous thromboembolic (VTE) sequelae (deep vein thrombosis or pulmonary embolism) as high as 25%. Likely, these estimates are lower in non-referred patients, but large-scale population-based studies are lacking. We aimed to estimate the incidence rate of SVT in primary care and quantify its risk of VTE sequelae. DESIGN: A retrospective cohort study, using International Classification of Primary Care coding (K94...
April 20, 2018: BMJ Open
https://www.readbyqxmd.com/read/29678969/reducing-the-default-dispense-quantity-for-new-opioid-analgesic-prescriptions-study-protocol-for-a-cluster-randomised-controlled-trial
#17
Marcus A Bachhuber, Denis Nash, William N Southern, Moonseong Heo, Matthew Berger, Mark Schepis, Chinazo O Cunningham
INTRODUCTION: As opioid analgesic consumption has grown, so have opioid use disorder and opioid-related overdoses. Reducing the quantity of opioid analgesics prescribed for acute non-cancer pain can potentially reduce risks to the individual receiving the prescription and to others who might unintentionally or intentionally consume any leftover tablets. Reducing the default dispense quantity for new opioid analgesic prescriptions in the electronic health record (EHR) is a promising intervention to reduce prescribing...
April 20, 2018: BMJ Open
https://www.readbyqxmd.com/read/29678941/autoantibodies-and-scleroderma-phenotype-define-subgroups-at-high-risk-and-low-risk-for-cancer
#18
Takeru Igusa, Laura K Hummers, Kala Visvanathan, Carrie Richardson, Fredrick M Wigley, Livia Casciola-Rosen, Antony Rosen, Ami A Shah
OBJECTIVES: Recent studies demonstrate autoantibodies are powerful tools to interrogate molecular events linking cancer and the development of autoimmunity in scleroderma. Investigating cancer risk in these biologically relevant subsets may provide an opportunity to develop personalised cancer screening guidelines. In this study, we examined cancer risk in distinct serologic and phenotypic scleroderma subsets and compared estimates with the general population. METHODS: Patients in the Johns Hopkins Scleroderma Center observational cohort were studied...
April 20, 2018: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/29678673/a-validated-clinical-risk-prediction-model-for-lung-cancer-in-smokers-of-all-ages-and-exposure-types-a-hunt-study
#19
Maria Markaki, Ioannis Tsamardinos, Arnulf Langhammer, Vincenzo Lagani, Kristian Hveem, Oluf Dimitri Røe
Lung cancer causes >1·6 million deaths annually, with early diagnosis being paramount to effective treatment. Here we present a validated risk assessment model for lung cancer screening. The prospective HUNT2 population study in Norway examined 65,237 people aged >20years in 1995-97. After a median of 15·2years, 583 lung cancer cases had been diagnosed; 552 (94·7%) ever-smokers and 31 (5·3%) never-smokers. We performed multivariable analyses of 36 candidate risk predictors, using multiple imputation of missing data and backwards feature selection with Cox regression...
March 30, 2018: EBioMedicine
https://www.readbyqxmd.com/read/29678527/the-effect-of-neoadjuvant-androgen-deprivation-therapy-on-tumor-hypoxia-in-high-grade-prostate-cancer-an-18-f-miso-pet-mri-study
#20
Ismini C Mainta, Thomas Zilli, Jean-Christophe Tille, Thomas De Perrot, Jean-Paul Vallée, Franz Buchegger, Valentina Garibotto, Raymond Miralbell
PURPOSE: Tumor hypoxia is associated with radioresistance and poor prognosis after radiation therapy for prostate cancer (PCa). In this prospective pilot study, we assessed the ability of 18 F-misonidazole (18 F-MISO) positron emission tomography (PET)-magnetic resonance imaging (MRI) to detect hypoxia in high-grade PCa patients who were candidates for curative radiation therapy, and we evaluated 18 F-MISO PET-MRI modulation after 3 months of neoadjuvant androgen deprivation therapy (nADT)...
March 8, 2018: International Journal of Radiation Oncology, Biology, Physics
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