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Medical Simulation

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https://www.readbyqxmd.com/read/28213941/population-pharmacokinetic-and-exposure-simulation-analysis-for-cediranib-azd2171-in-pooled-phase-i-ii-studies-in-patients-with-cancer
#1
Jianguo Li, Nidal Al-Huniti, Anja Henningsson, Weifeng Tang, Eric Masson
AIMS: A population pharmacokinetic (PPK) model was developed for cediranib to simulate cediranib exposure for different doses, including co-medication with strong UGT/Pgp inducers such as rifampicin, in cancer patients. METHODS: Plasma concentrations and covariates from 625 cancer patients after single or multiple oral cediranib administrations ranging from 0.5 to 90 mg in 19 Phase I and II studies were included in the analysis. Stepwise covariate modelling was used to develop the PPK model...
February 18, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28212749/comparative-analysis-of-single-cell-rna-sequencing-methods
#2
Christoph Ziegenhain, Beate Vieth, Swati Parekh, Björn Reinius, Amy Guillaumet-Adkins, Martha Smets, Heinrich Leonhardt, Holger Heyn, Ines Hellmann, Wolfgang Enard
Single-cell RNA sequencing (scRNA-seq) offers new possibilities to address biological and medical questions. However, systematic comparisons of the performance of diverse scRNA-seq protocols are lacking. We generated data from 583 mouse embryonic stem cells to evaluate six prominent scRNA-seq methods: CEL-seq2, Drop-seq, MARS-seq, SCRB-seq, Smart-seq, and Smart-seq2. While Smart-seq2 detected the most genes per cell and across cells, CEL-seq2, Drop-seq, MARS-seq, and SCRB-seq quantified mRNA levels with less amplification noise due to the use of unique molecular identifiers (UMIs)...
February 16, 2017: Molecular Cell
https://www.readbyqxmd.com/read/28211003/an-easy-to-build-low-budget-point-of-care-ultrasound-simulator-from-linux-to-a-web-based-solution
#3
Domagoj Damjanovic, Ulrich Goebel, Benedikt Fischer, Martin Huth, Hartmut Breger, Hartmut Buerkle, Axel Schmutz
BACKGROUND: Hands-on training in point-of-care ultrasound (POC-US) should ideally comprise bedside teaching, as well as simulated clinical scenarios. High-fidelity phantoms and portable ultrasound simulation systems are commercially available, however, at considerable costs. This limits their suitability for medical schools. A Linux-based software for Emergency Department Ultrasound Simulation (edus2TM) was developed by Kulyk and Olszynski in 2011. Its feasibility for POC-US education has been well-documented, and shows good acceptance...
December 2017: Critical Ultrasound Journal
https://www.readbyqxmd.com/read/28209500/theoretical-estimation-of-64-cu-production-with-neutrons-emitted-during-18-f-production-with-a-30mev-medical-cyclotron
#4
Lucrezia Auditore, Ernesto Amato, Sergio Baldari
PURPOSE: This work presents the theoretical estimation of a combined production of (18)F and (64)Cu isotopes for PET applications. (64)Cu production is induced in a secondary target by neutrons emitted during a routine (18)F production with a 30MeV cyclotron: protons are used to produce (18)F by means of the (18)O(p,n)(18)F reaction on a [(18)O]-H2O target (primary target) and the emitted neutrons are used to produce (64)Cu by means of the (64)Zn(n,p)(64)Cu reaction on enriched zinc target (secondary target)...
February 3, 2017: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/28209038/-a-comparison-of-leak-compensation-in-six-acute-care-ventilators-during-non-invasive-ventilation
#5
X S Hu, Y Wang, Z T Wang, P Yan, X G Zhang, S F Zhao, F Xie, H J Gu, L X Xie
Objective: To compare the ability of leak compensation in 6 medical ventilators during non-invasive ventilation. Methods: Six medical ventilators were selected, including 3 non-invasive ventilators (V60, Flexo and Stellar150), and 3 invasive ventilators(Avea, Servo I and BellaVist). Using a lung simulator, the ability of leak compensation was evaluated during triggering and cycling in 2 respiratory mechanics conditions (high airway resistance condition and high elastance resistance condition), and each condition was performed under 2 PEEP levels (4, and 8 cmH(2)O, 1 mmHg=0...
February 12, 2017: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28207594/using-high-technology-simulators-to-prepare-anesthesia-providers-before-implementation-of-a-new-electronic-health-record-module-a-technical-report
#6
Ari Y Weintraub, Ellen S Deutsch, Roberta L Hales, Newton A Buchanan, Whitney L Rock, Mohamed A Rehman
Learning to use a new electronic anesthesia information management system can be challenging. Documenting anesthetic events, medication administration, and airway management in an unfamiliar system while simultaneously caring for a patient with the vigilance required for safe anesthesia can be distracting and risky. This technical report describes a vendor-agnostic approach to training using a high-technology manikin in a simulated clinical scenario. Training was feasible and valued by participants but required a combination of electronic and manual components...
February 15, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28203449/a-cost-utility-analysis-of-different-antiviral-medicine-regimens-in-patients-with-chronic-hepatitis-c-virus-genotype-1-infection
#7
Seyed Moayed Alavian, Shekoufeh Nikfar, Abbas Kebriaeezadeh, Farhad Lotfi, Ehsan Sanati, Mohsen Rezaei Hemami, Khosro Keshavarz
BACKGROUND: Despite the introduction of new drug regimens with high effectiveness for the hepatitis C virus (HCV) patients, especially in HCV genotype 1, no cost-effectiveness study on the selection of the superior drug strategy in Iran has been conducted yet. OBJECTIVES: This study is aimed to assess the cost-effectiveness of the three drug regimens of pegylated interferon and ribavirin (PR), sofosbuvir (SOF) + PR and ledipasvir and sofosbuvir (LDV/SOF) in patients with HCV genotype 1 in Iran in the year 2014...
November 2016: Iranian Red Crescent Medical Journal
https://www.readbyqxmd.com/read/28202839/cost-outcome-description-of-peg-ifn-%C3%AE-2b-rbv-for-hepatitis-c-results-based-on-the-interferon-database
#8
Maiko Akutagawa, Yohei Kawasaki, Atsuko Kawasaki, Kazuki Ide, Hiroshi Yamada, Naohiko Masaki
Economic evaluation of drugs is used in decision-making on medical care and public policy. Recently, real-world data (RWD) have been used in the analysis. In this study, we discuss the risk and benefits of using RWD for economic evaluation. We conducted a cost-outcome description with RWD from a nationwide registry providing information on hepatitis treatment in Japan and estimated the utility of the analysis. We evaluated the cost-outcome description of peginterferon plus ribavirin (PEG-IFN-α2b + RBV) treatment in hepatitis C virus (HCV)-infected patients...
February 15, 2017: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28199931/a-personalized-3d-printed-prosthetic-joint-replacement-for-the-human-temporomandibular-joint-from-implant-design-to-implantation
#9
David C Ackland, Dale Robinson, Michael Redhead, Peter Vee Sin Lee, Adrian Moskaljuk, George Dimitroulis
Personalized prosthetic joint replacements have important applications in cases of complex bone and joint conditions where the shape and size of off-the-shelf components may not be adequate. The objective of this study was to design, test and fabricate a personalized 3D-printed prosthesis for a patient requiring total joint replacement surgery of the temporomandibular joint (TMJ). The new 'Melbourne' prosthetic TMJ design featured a condylar component sized specifically to the patient and fixation screw positions that avoid potential intra-operative damage to the mandibular nerve...
February 6, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28199265/a-decision-support-approach-for-provider-scheduling-in-a-patient-centered-medical-home
#10
Renata Konrad, Sarah Ficarra, Catherine Danko, Rachel Wallace, Cliona Archambeault
The patient-centered medical home (PCMH) has been proposed as a viable and medically effective model of primary care delivery. The fundamental principles of a PCMH address increased access and offer new ways to organize a practice. Creating provider schedules able to satisfy the operational and organizational constraints imposed by this type of delivery model is a challenging, complex, and time-consuming task.This article presents a two-step approach for scheduling providers and prospectively assessing the consequences of various schedules on patient throughput without experimenting on the real-world system...
January 2017: Journal of Healthcare Management / American College of Healthcare Executives
https://www.readbyqxmd.com/read/28198517/a-monte-carlo-study-for-optimizing-the-detector-of-spect-imaging-using-a-xcat-human-phantom
#11
Mohammad Khoshakhlagh, Jalil Pirayesh Islamian, Seyyed Mohammad Abedi, Babak Mahmoudian, Masoud Shayesteh Azar
BACKGROUND: Acquiring a high quality image has assigned an important concern for obtaining accurate diagnosis in nuclear medicine. Detector is a critical component of Single Photon Emission Computed Tomography (SPECT) imaging system for giving accurate information from exact pattern of radionuclide distribution in the target organ. The images are strongly affected by the attenuation, scattering, and response of the detector. The conventional detector is mainly made from sodium iodide activated by thallium [NaI(Tl)] in nuclear medicine imaging...
2017: Nuclear Medicine Review. Central & Eastern Europe
https://www.readbyqxmd.com/read/28197760/automated-identification-and-reduction-of-artifacts-in-cine-four-dimensional-computed-tomography-4dct-images-using-respiratory-motion-model
#12
Min Li, Sarah Joy Castillo, Richard Castillo, Edward Castillo, Thomas Guerrero, Liang Xiao, Xiaolin Zheng
PURPOSE: Four-dimensional computed tomography (4DCT) images are often marred by artifacts that substantially degrade image quality and confound image interpretation. Human observation remains the standard method of 4DCT artifact evaluation, which is time-consuming and subjective. We develop a method to automatically identify and reduce artifacts in cine 4DCT images. METHODS: We proposed an algorithm that consisted of two main stages: deformable image registration and respiratory motion simulation...
February 14, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28195455/hydrolytic-stability-of-3-aminopropylsilane-coupling-agent-on-silica-and-silicate-surfaces-at-elevated-temperatures
#13
Denis V Okhrimenko, Akin Budi, Marcel Ceccato, Marite Cardenas, Dorte B Johansson, Dorthe Lybye, Klaus Bechgaard, Martin Peter Andersson, Susan L S Stipp
3-Aminopropylsilane (APS) coupling agent is widely used in industrial, biomaterial and medical applications to improve adhesion of polymers to inorganic materials. However, during exposure to elevated humidity and temperature, the deposited APS layers can decompose, leading to reduction in coupling efficiency and thus decreasing the product quality and the mechanical strength of the polymer-inorganic material interface. Therefore, a better understanding of the chemical state and stability of APS on inorganic surfaces is needed...
February 14, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28194682/psychopharmacology-prescribing-workshops-a-novel-method-for-teaching-psychiatry-residents-how-to-talk-to-patients-about-medications
#14
Eileen P Kavanagh, John Cahill, Melissa R Arbuckle, Alison E Lenet, Kalyani Subramanyam, Ronald M Winchel, Ilana Nossel, Ravi DeSilva, Rachel A Caravella, Marra Ackerman, Henry C Park, David A Ross
OBJECTIVE: Traditional, lecture-based methods of teaching pharmacology may not translate into the skills needed to communicate effectively with patients about medications. In response, the authors developed an interactive course for third-year psychiatry residents to reinforce prescribing skills. METHODS: Residents participate in a facilitated group discussion combined with a role-play exercise where they mock-prescribe medication to their peers. Each session is focused on one medication or class of medications with an emphasis on various aspects of informed consent (such as describing the indication, dosing, expected benefits, potential side effects, and necessary work-up and follow up)...
February 13, 2017: Academic Psychiatry
https://www.readbyqxmd.com/read/28194595/double-balloon-colonoscopy-has-a-higher-cecal-intubation-rate-than-conventional-colonoscopy-using-a-colon-simulator
#15
Keijiro Sunada, Satoshi Shinozaki, Tomonori Yano, Yoshikazu Hayashi, Hirotsugu Sakamoto, Alan Kawarai Lefor, Hironori Yamamoto
BACKGROUND/AIM: Cecal intubation using conventional colonoscopy (CC) requires substantial training. We hypothesized that double-balloon colonoscopy (DBC) facilitates cecal intubation by endoscopy naïve operators. The aim of this study is to evaluate the cecal intubation rate and learning curve of DBC compared with CC. METHODS: Eighteen endoscopy naïve medical students were allocated to two groups and attempted cecal intubation within 20 min using a colon simulator...
February 13, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28193299/otolaryngology-outreach-to-komfo-anokye-teaching-hospital-a-medical-and-educational-partnership
#16
B Waller, R Larsen-Reindorf, M Duah, J Opoku-Buabeng, B M Edwards, D Brown, J Moyer, M Prince, G J Basura
BACKGROUND: Medical and educational partnerships between high- and low-resourced countries provide opportunities to have a long-term meaningful impact on medical training and healthcare delivery. METHODS: An otolaryngology partnership between Komfo Anokye Teaching Hospital in Kumasi, Ghana, and the University of Michigan Department of Otolaryngology/Head and Neck Surgery has been undertaken to enhance healthcare delivery at both institutions. RESULTS: A temporal bone dissection laboratory, with the equipment to perform dedicated otological surgery, and academic platforms for clinical and medical education and residency training have been established...
February 14, 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/28192533/improving-medication-safety-development-and-impact-of-a-multivariate-model-based-strategy-to-target-high-risk-patients
#17
Tri-Long Nguyen, Géraldine Leguelinel-Blache, Jean-Marie Kinowski, Clarisse Roux-Marson, Marion Rougier, Jessica Spence, Yannick Le Manach, Paul Landais
BACKGROUND: Preventive strategies to reduce clinically significant medication errors (MEs), such as medication review, are often limited by human resources. Identifying high-risk patients to allow for appropriate resource allocation is of the utmost importance. To this end, we developed a predictive model to identify high-risk patients and assessed its impact on clinical decision-making. METHODS: From March 1st to April 31st 2014, we conducted a prospective cohort study on adult inpatients of a 1,644-bed University Hospital Centre...
2017: PloS One
https://www.readbyqxmd.com/read/28191324/effect-of-logarithmic-and-linear-frequency-scales-on-parametric-modelling-of-tissue-dielectric-data
#18
Saqib Salahuddin, Emily Porter, Paul M Meaney, Martin O'Halloran
The dielectric properties of biological tissues have been studied widely over the past half-century. These properties are used in a vast array of applications, from determining the safety of wireless telecommunication devices to the design and optimisation of medical devices. The frequency-dependent dielectric properties are represented in closed-form parametric models, such as the Cole-Cole model, for use in numerical simulations which examine the interaction of electromagnetic (EM) fields with the human body...
February 2017: Biomedical Physics & Engineering Express
https://www.readbyqxmd.com/read/28188484/estimation-of-attachment-regions-of-hip-muscles-in-ct-image-using-muscle-attachment-probabilistic-atlas-constructed-from-measurements-in-eight-cadavers
#19
Norio Fukuda, Yoshito Otake, Masaki Takao, Futoshi Yokota, Takeshi Ogawa, Keisuke Uemura, Ryota Nakaya, Kazunori Tamura, Robert B Grupp, Amirhossein Farvardin, Mehran Armand, Nobuhiko Sugano, Yoshinobu Sato
PURPOSE: Patient-specific musculoskeletal biomechanical simulation is useful in preoperative surgical planning and postoperative assessment in orthopedic surgery and rehabilitation medicine. A difficulty in application of the patient-specific musculoskeletal modeling comes from the fact that the muscle attachment regions are typically invisible in CT and MRI. Our purpose is to develop a method for estimating patient-specific muscle attachment regions from 3D medical images and to validate with cadaver experiments...
February 10, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28186008/your-health-care-may-kill-you-medical-errors
#20
James G Anderson, Kathleen Abrahamson
Recent studies of medical errors have estimated errors may account for as many as 251,000 deaths annually in the United States (U.S)., making medical errors the third leading cause of death. Error rates are significantly higher in the U.S. than in other developed countries such as Canada, Australia, New Zealand, Germany and the United Kingdom (U.K). At the same time less than 10 percent of medical errors are reported. This study describes the results of an investigation of the effectiveness of the implementation of the MEDMARX Medication Error Reporting system in 25 hospitals in Pennsylvania...
2017: Studies in Health Technology and Informatics
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