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Appropriateness criterion

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https://www.readbyqxmd.com/read/28336480/can-a-commercially-available-epid-dosimetry-system-detect-small-daily-patient-setup-errors-for-cranial-imrt-srs
#1
Emmelyn S Hsieh, Katherine S Hansen, Michael S Kent, Sanjeev Saini, Sonja Dieterich
PURPOSE: The purpose of this study was to determine if the Sun Nuclear PerFRACTION electronic portal imager device dosimetry software would be able to detect setup errors in a clinical setting and would be able to correctly identify the direction in which the setup error was introduced. METHODS AND MATERIALS: A 7-field intensity modulated radiation therapy (IMRT) treatment plan for a centrally located tumor was developed for 1 phantom and 5 canine cadaver heads...
December 24, 2016: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28334369/isotropic-failure-criteria-are-not-appropriate-for-anisotropic-fibrous-biological-tissues
#2
Christopher E Korenczuk, Lauren E Votava, Rohit Y Dhume, Shannen B Kizilski, George E Brown, Rahul Narain, Victor H Barocas
The von Mises (VM) stress is a common stress measure for finite-element models of tissue mechanics. The VM failure criterion, however, is inherently isotropic, and therefore may yield incorrect results for anisotropic tissues, and the relevance of the VM stress to anisotropic materials is not clear. We explored the application of a well-studied anisotropic failure criterion, the Tsai-Hill (TH) theory, to the mechanically anisotropic porcine aorta. Uniaxial dogbones were cut at different angles and stretched to failure...
March 23, 2017: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/28332413/interlaboratory-validation-of-an-lc-ms-ms-method-for-the-determination-of-melamine-and-cyanuric-acid-in-animal-feed
#3
Hildburg Fry, Kerstin Mietle, Eileen Mähnert, Sebastian Zinke, Mandy Schwieters, Emanuele Pydde, Angelika Preiß-Weigert
Melamine and cyanuric acid have been mixed illegally into food and feed to increase the nitrogen content which results in deceptively high protein contents. As a consequence a maximum level for melamine of 2.5 mg kg(-1) feed was established by the European Union under directive 2002/32/EC. A method is required to quantify melamine and cyanuric acid for control of the maximum level. Therefore Technical Committee (TC) 327 of the European Committee for Standardisation (CEN) commissioned the standardisation of a method for the analysis of melamine and cyanuric acid in animal feed...
March 23, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28332168/pulp-bleeding-color-is-an-indicator-of-clinical-and-histohematologic-status-of-primary-teeth
#4
Naser Asl Aaminabadi, Marziyeh Parto, Parya Emamverdizadeh, Zahra Jamali, Sajjad Shirazi
OBJECTIVES: This study was carried out to investigate whether the changes in hematologic characteristic and color of pulpal bleeding is associated with clinical and histologic status of the pulp in primary teeth. MATERIALS AND METHODS: A total of 211 primary molars in 103 patients, 3-6 years old, were treated. One hundred eight teeth had pulpectomy, 57 teeth had pulpotomy after pulp exposure during caries excavation, and 46 teeth had pulpotomy after accidental pulp exposure in sound dentin...
March 23, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28331354/utilization-and-prescribing-patterns-of-direct-oral-anticoagulants
#5
Maegan M Whitworth, Krystal K Haase, David S Fike, Ravindra M Bharadwaj, Rodney B Young, Eric J MacLaughlin
BACKGROUND: Scant literature exists evaluating utilization patterns for direct oral anticoagulants (DOACs). OBJECTIVES: The primary objective was to assess DOAC prescribing in patients with venous thromboembolism (VTE) and nonvalvular atrial fibrillation (NVAF) in outpatient clinics. Secondary objectives were to compare utilization between family medicine (FM) and internal medicine (IM) clinics, characterize potentially inappropriate use, and identify factors associated with adverse events (AEs)...
2017: International Journal of General Medicine
https://www.readbyqxmd.com/read/28330822/long-term-survival-of-patients-aged-80-years-or-older-treated-with-radical-prostatectomy-for-prostate-cancer
#6
P Dell'Oglio, E Zaffuto, K Boehm, V Trudeau, A Larcher, Z Tian, M Moschini, S F Shariat, M Graefen, F Saad, U Capitanio, A Briganti, F Montorsi, P I Karakiewicz
BACKGROUND: Radical prostatectomy (RP) is the gold standard for clinically localized prostate cancer (PCa) patients with life expectancy (LE) of at least 10 years. We examined long-term survival of men aged 80 years or older treated with RP and we attempted to identify criteria based on age and comorbidities that could predict survival of at least 10 years after RP, to identify those that might be considered for RP. PATIENTS AND METHODS: In Surveillance Epidemiology and End Results (SEER)-Medicare-linked database, we identified 234 octo- and nonagenarians with clinical T1, T2 or T3 PCa treated with RP between 1991 and 2009...
March 10, 2017: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28294284/the-aetiology-of-chronic-vulval-pain-and-entry-dyspareunia-a-retrospective-review-of-525-cases
#7
Victoria Harris, Gayle Fischer, Jennifer A Bradford
BACKGROUND: There are few published data about the incidence of diagnoses or treatment outcomes, for chronic vulval pain. AIMS: To document diagnoses and treatment outcomes in a cohort of chronic vulval pain presentations. MATERIALS AND METHODS: A retrospective case review of the patient database of a private vulval clinic between January 2011 and March 2015. RESULTS: Five hundred and twenty-five out of 3360 patients (15...
March 13, 2017: Australian & New Zealand Journal of Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/28289433/the-serum-level-of-25-hydroxyvitamin-d-for-maximal-suppression-of-parathyroid-hormone-in-children-the-relationship-between-25-hydroxyvitamin-d-and-parathyroid-hormone
#8
Jung In Kang, Yoon Suk Lee, Ye Jin Han, Kyoung Ae Kong, Hae Soon Kim
PURPOSE: Serum level of 25-hydroxyvitamin D (25-OHD) is considered as the most appropriate marker of vitamin D status. However, only a few studies have investigated the relationship between 25-OHD and parathyroid hormone (PTH) in children. To this end, this study was aimed at evaluating the lowest 25-OHD level that suppresses the production of parathyroid hormone in children. METHODS: A retrospective record review was performed for children aged 0.2 to 18 years (n=193; 106 boys and 87 girls) who underwent simultaneous measurements of serum 25-OHD and PTH levels between January 2010 and June 2014...
February 2017: Korean Journal of Pediatrics
https://www.readbyqxmd.com/read/28284211/a-systematic-review-of-the-clinical-presentation-treatment-and-relapse-characteristics-of-human-plasmodium-ovale-malaria
#9
REVIEW
Mirjam Groger, Hannah S Fischer, Luzia Veletzky, Albert Lalremruata, Michael Ramharter
BACKGROUND: Despite increased efforts to control and ultimately eradicate human malaria, Plasmodium ovale malaria is for the most part outside the focus of research or public health programmes. Importantly, the understanding of P. ovale-nowadays regarded as the two distinct species P. ovale wallikeri and P. ovale curtisi-largely stems from case reports and case series lacking study designs providing high quality evidence. Consecutively, there is a lack of systematic evaluation of the clinical presentation, appropriate treatment and relapse characteristics of P...
March 11, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28282704/comparison-of-bone-density-of-distal-radius-with-hip-and-spine-using-dxa
#10
Leila Amiri, Azita Kheiltash, Shafieh Movassaghi, Maryam Moghaddassi, Leila Seddigh
Osteoporosis diagnosis is usually based on examination of the hip bone and vertebrae density; however, the radius bone has gained attention recently in terms of feasibility and accessibility as it is done by portable devices with proper precision. This study aims to compare hip and spine density with radius, knowing whether radius may be an appropriate alternative for osteoporosis diagnosis. 120 females who were referred to one Densitometry Center checked their skeletal status using a hologic unit for densitometry of spine, femoral neck, and one-third radius...
February 2017: Acta Medica Iranica
https://www.readbyqxmd.com/read/28282539/increasing-podiatry-referrals-for-patients-with-inflammatory-arthritis-at-a-tertiary-hospital-in-singapore-a-quality-improvement-project
#11
K Carter, P P Cheung, K Rome, A Santosa, M Lahiri
BACKGROUND: Foot disease is highly prevalent in people with inflammatory arthritis and is often under-recognized. Podiatry intervention can significantly reduce foot pain and disability, with timely access being the key factor. The aim of this study was to plan and implement a quality improvement project to identify the barriers to, and improve, uptake of podiatry services among patients with inflammatory arthritis-related foot problems seen at a tertiary hospital in Singapore. METHOD: A 6-month quality improvement program was conducted by a team of key stakeholders using quality improvement tools to identify, implement and test several interventions designed to improve uptake of podiatry services...
December 28, 2016: Foot
https://www.readbyqxmd.com/read/28278434/atom-counting-in-high-resolution-electron-microscopy-tem-or-stem-that-s-the-question
#12
J Gonnissen, A De Backer, A J den Dekker, J Sijbers, S Van Aert
In this work, a recently developed quantitative approach based on the principles of detection theory is used in order to determine the possibilities and limitations of High Resolution Scanning Transmission Electron Microscopy (HR STEM) and HR TEM for atom-counting. So far, HR STEM has been shown to be an appropriate imaging mode to count the number of atoms in a projected atomic column. Recently, it has been demonstrated that HR TEM, when using negative spherical aberration imaging, is suitable for atom-counting as well...
October 27, 2016: Ultramicroscopy
https://www.readbyqxmd.com/read/28271316/psychometric-evaluation-of-the-pediatric-and-parent-proxy-patient-reported-outcomes-measurement-information-system-and-the-neurology-and-traumatic-brain-injury-quality-of-life-measurement-item-banks-in-pediatric-traumatic-brain-injury
#13
Hilary Bertisch, Frederick P Rivara, Pamela A Kisala, Jin Wang, Keith Owen Yeates, Dennis Durbin, Mark R Zonfrillo, Michael J Bell, Nancy Temkin, David S Tulsky
PURPOSE: The primary objective is to provide evidence of convergent and discriminant validity for the pediatric and parent-proxy versions of the Patient-Reported Outcomes Measurement Information System (PROMIS) Anxiety, Depression, Anger, Peer Relations, Mobility, Pain Interference, and Fatigue item banks, the Neurology Quality of Life measurement system (Neuro-QOL) Cognition-General Concerns and Stigma item banks, and the Traumatic Brain Injury Quality of Life (TBI-QOL) Executive Function and Headache item banks in a pediatric traumatic brain injury (TBI) sample...
March 7, 2017: Quality of Life Research
https://www.readbyqxmd.com/read/28269243/predictive-models-for-diffuse-low-grade-glioma-patients-under-chemotherapy
#14
Meriem Ben Abdallah, Marie Blonski, Sophie Wantz-Mezieres, Yann Gaudeau, Luc Taillandier, Jean-Marie Moureaux
Diffuse low-grade gliomas are rare primitive cerebral tumours of adults. These tumors progress continuously over time and then turn to a higher grade of malignancy associated with neurological disability, leading ultimately to death. Tumour size is one of the most important prognostic factors. Thus, it is of great importance to be able to assess the volume of the tumor during the patients' monitoring. MRI is nowadays the recommended modality to achieve this. Furthermore, if surgery remains the first option for diffuse low-grade gliomas, chemotherapy is increasingly used (before or after a possible surgery)...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28263688/factor-structure-evaluation-of-the-french-version-of-the-digital-natives-assessment-scale
#15
Vincent Wagner, Didier Acier
"Digital natives" concept defines young adults particularly familiar with emerging technologies such as computers, smartphones, or Internet. This notion is still controversial and so far, the primary identifying criterion was to consider their date of birth. However, literature highlighted the need to describe specific characteristics. The purpose of this research was to evaluate the factor structure of a French version of the Digital Natives Assessment Scale (DNAS). The sample of this study includes 590 participants from a 6-week massive open online course and from Web sites, electronic forums, and social networks...
March 2017: Cyberpsychology, Behavior and Social Networking
https://www.readbyqxmd.com/read/28260614/classification-of-alzheimer-s-disease-and-prediction-of-mild-cognitive-impairment-to-alzheimer-s-conversion-from-structural-magnetic-resource-imaging-using-feature-ranking-and-a-genetic-algorithm
#16
Iman Beheshti, Hasan Demirel, Hiroshi Matsuda
We developed a novel computer-aided diagnosis (CAD) system that uses feature-ranking and a genetic algorithm to analyze structural magnetic resonance imaging data; using this system, we can predict conversion of mild cognitive impairment (MCI)-to-Alzheimer's disease (AD) at between one and three years before clinical diagnosis. The CAD system was developed in four stages. First, we used a voxel-based morphometry technique to investigate global and local gray matter (GM) atrophy in an AD group compared with healthy controls (HCs)...
February 27, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28257309/patient-centered-anesthesia-triage-system-predicts-asa-physical-status
#17
F Kayser Enneking, Nila S Radhakrishnan, Kent Berg, Saharsh Patel, Judith M Wishin, Terrie Vasilopoulos
BACKGROUND: The purpose of this study was to validate a patient-centered anesthesia triage system (PCATS) by examining its association with, and predictive value of, ASA physical status (PS) classification. ASA PS classification is a widely used indicator of health status and the predictor of risk of perioperative complications. Thus, ASA PS is a good triage point such that healthy surgical patients (ASA PS I and II) undergoing low-complexity surgery are assessed by telephone, whereas less-healthy patients (ASA PS III and IV) or those patients undergoing highly complex surgery are seen in person at a presurgical clinic...
March 2, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28231131/effects-of-matrix-composition-on-detection-threshold-estimates-for-methyl-anthranilate-and-2-aminoacetophenone
#18
Demetra M Perry, John E Hayes
Conceptually, a detection threshold represents the lowest concentration at which an individual or a group of individuals can reliably perceive a given stimulus, with a commonly used operational definition of 50% performance above chance. Estimated detection thresholds (DTs), however, are often reported in the literature with little attention given to the matrix in which the stimuli were evaluated. Here, we highlight the influence of matrix effects on DTs for two odor-active compounds commonly found in Vitis Labrusca wines...
May 17, 2016: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28227477/predictive-models-for-diffuse-low-grade-glioma-patients-under-chemotherapy
#19
Meriem Ben Abdallah, Marie Blonski, Sophie Wantz-Mezieres, Yann Gaudeau, Luc Taillandier, Jean-Marie Moureaux, Meriem Ben Abdallah, Marie Blonski, Sophie Wantz-Mezieres, Yann Gaudeau, Luc Taillandier, Jean-Marie Moureaux, Luc Taillandier, Jean-Marie Moureaux, Marie Blonski, Yann Gaudeau, Sophie Wantz-Mezieres, Meriem Ben Abdallah
Diffuse low-grade gliomas are rare primitive cerebral tumours of adults. These tumors progress continuously over time and then turn to a higher grade of malignancy associated with neurological disability, leading ultimately to death. Tumour size is one of the most important prognostic factors. Thus, it is of great importance to be able to assess the volume of the tumor during the patients' monitoring. MRI is nowadays the recommended modality to achieve this. Furthermore, if surgery remains the first option for diffuse low-grade gliomas, chemotherapy is increasingly used (before or after a possible surgery)...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28221962/modeling-the-effect-of-temperature-and-water-activity-on-the-thermal-resistance-of-salmonella-enteritidis-pt-30-in-wheat-flour
#20
Danielle F Smith, Ian M Hildebrandt, Kaitlyn E Casulli, Kirk D Dolan, Bradley P Marks
Salmonella continues to be a problem associated with low-moisture foods, particularly given enhanced thermal resistance at lower water activity (aw). However, there is a scarcity of thermal inactivation models accounting for the effect of aw. The objective of this study was to test multiple secondary models for the effect of product (wheat flour) aw on Salmonella enterica Enteritidis phage type 30 thermal resistance. A full-factorial experimental design included three temperatures (75, 80, and 85°C) and four aw values (~0...
December 2016: Journal of Food Protection
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