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https://www.readbyqxmd.com/read/29774597/assessment-of-the-generalization-of-learned-image-reconstruction-and-the-potential-for-transfer-learning
#1
Florian Knoll, Kerstin Hammernik, Erich Kobler, Thomas Pock, Michael P Recht, Daniel K Sodickson
PURPOSE: Although deep learning has shown great promise for MR image reconstruction, an open question regarding the success of this approach is the robustness in the case of deviations between training and test data. The goal of this study is to assess the influence of image contrast, SNR, and image content on the generalization of learned image reconstruction, and to demonstrate the potential for transfer learning. METHODS: Reconstructions were trained from undersampled data using data sets with varying SNR, sampling pattern, image contrast, and synthetic data generated from a public image database...
May 17, 2018: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29773253/-reception-the-first-element-of-care-in-emergency-departments
#2
Ségolène Delaby
The mission of an emergency department is to attend to any person arriving, at any time, whatever their condition, with the aim of treating them or transferring them to the most appropriate department. The approach often requires the provision of technical care meaning that relational care frequently takes a back seat. When the patient first arrives, the care is different, the patient-nurse interaction is essential. The role and the missions accorded to the triage nurse are fundamental in ensuring the patient receives quality care at this stage...
May 2018: Soins; la Revue de Référence Infirmière
https://www.readbyqxmd.com/read/29770560/how-nurses-restore-and-maintain-mobility-in-hospitalised-older-people-an-integrative-literature-review
#3
Stephanie Constantin, Sherry Dahlke
AIM: The aim of this integrative review of the literature was to evaluate and summarise current research about how nurses maintain and improve hospitalised older peoples' mobility levels. BACKGROUND: Older persons make up the majority of healthcare recipients, and they are at risk to experience significant decline in their mobility once hospitalised. This can result in longer hospitalisations or nursing home admissions. Currently, it is not well understood how nurses maintain and restore mobility of hospitalised older persons...
May 17, 2018: International Journal of Older People Nursing
https://www.readbyqxmd.com/read/29768472/progame-a-process-framework-for-serious-game-development-for-motor-rehabilitation-therapy
#4
Esperança Amengual Alcover, Antoni Jaume-I-Capó, Biel Moyà-Alcover
Serious game development for rehabilitation therapy is becoming increasingly popular because of the motivational advantages that these types of applications provide. Consequently, the need for a common process framework for this category of software development has become increasingly evident. The goal is to guarantee that products are developed and validated by following a coherent and systematic method that leads to high-quality serious games. This paper introduces a new process framework for the development of serious games for motor rehabilitation therapy...
2018: PloS One
https://www.readbyqxmd.com/read/29766311/monitoring-scanner-calibration-using-the-image-derived-arterial-blood-suv-in-whole-body-fdg-pet
#5
Jens Maus, Frank Hofheinz, Ivayla Apostolova, Michael C Kreissl, Jörg Kotzerke, Jörg van den Hoff
BACKGROUND: The current de facto standard for quantification of tumor metabolism in oncological whole-body PET is the standardized uptake value (SUV) approach. SUV determination requires accurate scanner calibration. Residual inaccuracies of the calibration lead to biased SUV values. Especially, this can adversely affect multicenter trials where it is difficult to ensure reliable cross-calibration across participating sites. The goal of the present work was the evaluation of a new method for monitoring scanner calibration utilizing the image-derived arterial blood SUV (BSUV) averaged over a sufficiently large number of whole-body FDG-PET investigations...
May 15, 2018: EJNMMI Research
https://www.readbyqxmd.com/read/29765233/patterns-of-local-failures-and-suggestions-for-reduction-of-clinical-target-volume-for-nasopharyngeal-carcinoma-patients-without-cervical-lymph-node-metastasis
#6
Yujiao Li, Xiaomin Ou, Chunying Shen, Tingting Xu, Weiwei Li, Chaosu Hu
Background: To demonstrate the robustness of clinical target volume delineation for nasopharyngeal carcinoma (NPC) patients, this study makes a detailed analysis of the initial irradiated dose of the recurrent site and local failure patterns after intensity-modulated radiation therapy (IMRT). Based on this analysis, further improvement of delineation recommendations may be made in order to improve the quality-of-life in NPC, without decreasing the local control and survival rate. Methods: In total, 382 newly diagnosed non-metastatic NPC patients were retrospectively enrolled, receiving elective neck irradiation to levels II, III, and VA...
2018: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29764891/developing-a-complex-intervention-to-support-timely-engagement-with-palliative-care-for-patients-with-advanced-cancer-in-primary-and-secondary-care-in-the-uk-a-study-protocol
#7
Julia Hackett, Hilary Bekker, Michael I Bennett, Paul Carder, Jean Gallagher, Claire Henry, Suzanne Kite, Sally Taylor, Galina Velikova, Lucy Ziegler
INTRODUCTION: For patients with advanced cancer, timely access to palliative care can improve quality of life and enable patients to participate in decisions about their end-of-life care. However, in a UK population of 2500 patients who died from cancer, one-third did not receive specialist palliative care, and of those who did, the duration of involvement was too short to maximise the benefits. Initiating a conversation about palliative care is challenging for some health professionals and patients often have unmet information needs and misconceptions about palliative care...
May 14, 2018: BMJ Open
https://www.readbyqxmd.com/read/29764458/cone-beam-computed-tomography-in-implant-dentistry-recommendations-for-clinical-use
#8
Reinhilde Jacobs, Benjamin Salmon, Marina Codari, Bassam Hassan, Michael M Bornstein
BACKGROUND: In implant dentistry, three-dimensional (3D) imaging can be realised by dental cone beam computed tomography (CBCT), offering volumetric data on jaw bones and teeth with relatively low radiation doses and costs. The latter may explain why the market has been steadily growing since the first dental CBCT system appeared two decades ago. More than 85 different CBCT devices are currently available and this exponential growth has created a gap between scientific evidence and existing CBCT machines...
May 15, 2018: BMC Oral Health
https://www.readbyqxmd.com/read/29762451/modified-design-of-anterolateral-thigh-flap-for-total-pharyngolaryngectomy-reconstruction-a-single-center-experience
#9
Li-Yen Cheng, Cha-Chun Chen, Hwang-Chi Lin, Chu-Hsu Jeng, Shang-Hsi Lin, Wei-Nung Jim Chen, Yu-Hsien Lin, Sheng-Po Hao
BACKGROUND: Defects after total pharyngolaryngectomy for hypopharyngeal cancer often require reconstruction via free tissue transfer. Recently, anterolateral thigh (ALT) flap has become the gold standard in many centers because of its advantages with respect to versatility, minimal donor-site morbidity, good speech quality, and relatively low fistula and anastomotic leakage rates. Moreover, ALT allows 2 surgical teams to work simultaneously. However, the height of the parallelogram in the ALT design for neoesophagus reconstruction is usually set at a minimum of 9...
May 14, 2018: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/29762438/venous-anastomoses-in-anterolateral-thigh-flaps-for-the-lower-extremity-vessel-selection-in-lieu-of-obligatory-number
#10
David Mattos, Shawn Diamond, Anmol S Chattha, Johanna N Riesel, Matthew L Iorio
BACKGROUND: Dual venous drainage for anterolateral thigh flaps has been proposed to protect against flap-related complications in head and neck applications. Here we report our experience with single vs dual venous anastomosis during lower extremity free-tissue transfer. METHODS: All free anterolateral thigh flaps for lower extremity reconstruction from 2011 to 2017 were retrospectively reviewed. An algorithm was used to determine the type and number of venous anastomoses, emphasizing patient anatomy, venous quality, and size match...
May 14, 2018: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/29762314/effectiveness-of-dexmedetomidine-versus-propofol-on-extubation-times-length-of-stay-and-mortality-rates-in-adult-cardiac-surgery-patients-a-systematic-review-and-meta-analysis
#11
John Nguyen, Noel Nacpil
OBJECTIVE: To determine the effects of dexmedetomidine versus propofol on extubation time, intensive care unit (ICU) length of stay, total hospital length of stay and in-hospital mortality rates in cardiac surgery patients. INTRODUCTION: Recovery from cardiovascular surgery involves weaning from mechanical ventilation. Mechanical ventilation decreases the work of breathing for patients by inhaling oxygen and exhaling carbon dioxide via a ventilator or breathing machine...
May 2018: JBI Database of Systematic Reviews and Implementation Reports
https://www.readbyqxmd.com/read/29757581/transmyometrial-embryo-transfer-as-a-useful-method-to-overcome-difficult-embryo-transfers-a-single-center-retrospective-study
#12
Janisse Ferreri Dos Anjos, Emma Gabriela Portillo Osorio, Joana Peñarrubia, Ester Vidal, Francisco Fábregues Gasol
OBJECTIVE: Pregnancy after an embryo transfer depends largely on embryo quality, endometrial receptivity, and the technique used in the embryo transfer. Embryo transfers have been reported as inevitably traumatic and difficult for 5-7% of patients in assisted reproduction treatment. In these cases, transmyometrial embryo transfer should be considered as a suitable method to overcome difficult embryo transfers. The aim of this study was to report our experience with this technique and analyze its causes, results and complications...
May 14, 2018: JBRA Assisted Reproduction
https://www.readbyqxmd.com/read/29755412/association-between-progesterone-elevation-on-the-day-of-human-chronic-gonadotropin-trigger-and-pregnancy-outcomes-after-fresh-embryo-transfer-in-in-vitro-fertilization-intracytoplasmic-sperm-injection-cycles
#13
REVIEW
Sandro C Esteves, Gautam Khastgir, Jatin Shah, Kshitiz Murdia, Shweta Mittal Gupta, Durga G Rao, Soumyaroop Dash, Kundan Ingale, Milind Patil, Kunji Moideen, Priti Thakor, Pavitra Dewda
Progesterone elevation (PE) during the late follicular phase of controlled ovarian stimulation in fresh embryo transfer in vitro fertilization (IVF)/intracytoplasmic sperm injection cycles has been claimed to be associated with decreased pregnancy rates. However, the evidence is not unequivocal, and clinicians still have questions about the clinical validity of measuring P levels during the follicular phase of stimulated cycles. We reviewed the existing literature aimed at answering four relevant clinical questions, namely (i) Is gonadotropin type associated with PE during the follicular phase of stimulated cycles? (ii) Is PE on the day of human chorionic gonadotropin (hCG) associated with negative fresh embryo transfer IVF/intracytoplasmic sperm injection (ICSI) cycles outcomes in all patient subgroups? (iii) Which P thresholds are best to identify patients at risk of implantation failure due to PE in a fresh embryo transfer? and (iv) Should a freeze all policy be adopted in all the cycles with PE on the day of hCG? The existing evidence indicates that late follicular phase progesterone rise in gonadotropin releasing analog cycles is mainly caused by the supraphysiological stimulation of granulosa cells with exogenous follicle-stimulating hormone...
2018: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29754648/the-cvad-registry-for-percutaneous-temporary-hemodynamic-support-a-prospective-registry-of-impella-mechanical-circulatory-support-use-in-high-risk-pci-cardiogenic-shock-and-decompensated-heart-failure
#14
George W Vetrovec, Mark Anderson, Theodore Schreiber, Jeffrey Popma, William Lombardi, Brijeshwar Maini, Jacob Eifer Moller, Andreas Schäfer, Simon R Dixon, Shelley Hall, E Magnus Ohman, Catalin Mindrescu, Jeffrey Moses, William O'Neill
Management of patients requiring temporary, mechanical hemodynamic support during high- risk percutaneous coronary intervention (PCI) or in cardiogenic shock is rapidly evolving. With the availability of the Impella 2.5, CP, 5.0, LD, and RP percutaneous mechanical circulatory support devices, there is a need for continued surveillance of outcomes. Three factors underline the importance of a registry for these populations. First, large randomized trials of hemodynamic support, involving cardiogenic shock, are challenging to conduct...
May 2018: American Heart Journal
https://www.readbyqxmd.com/read/29753335/external-beam-planning-module-of-eclipse-for-external-beam-radiation-therapy
#15
REVIEW
Cheng B Saw, SiCong Li, Frank Battin, Janice McKeague, Christopher A Peters
Eclipse is a 3-dimensional (3D) treatment planning system for radiation therapy offered by Varian Medical Systems, Inc. The system has the network connectivity for the electronic transfer of image datasets and digital data communication among different equipment. The scope of this project for this special issue of Medical Dosimetry on 3D treatment planning systems is the assessment of planning tools in the external beam planning module of Eclipse to generate optimized treatment plans for patients undergoing external beam radiation therapy...
July 2018: Medical Dosimetry: Official Journal of the American Association of Medical Dosimetrists
https://www.readbyqxmd.com/read/29753297/a-clinical-trial-of-nurse-practitioner-care-in-residential-aged-care-facilities
#16
Glenn Arendts, Pamela Deans, Keith O'Brien, Christopher Etherton-Beer, Kirsten Howard, Gill Lewin, Moira Sim
BACKGROUND: Optimising quality of life and reducing hospitalisation for people living in residential aged care facilities (RACF) are important health policy goals. METHODS: A cluster controlled clinical trial of nurse practitioner care in RACF. Six facilities were included: three randomly allocated to intervention where nurse practitioners working with general practitioners and using a best practice guide were responsible for care, and three control. Participants were followed up for a minimum of 12 months unless dead or transferred to another facility...
May 4, 2018: Archives of Gerontology and Geriatrics
https://www.readbyqxmd.com/read/29749624/image-quality-of-conventional-images-of-dual-layer-spectral-ct-a-phantom-study
#17
F van Ommen, E Bennink, A Vlassenbroek, J W Dankbaar, A M R Schilham, M A Viergever, H W A M de Jong
PURPOSE: Spectral CT using a dual layer detector offers the possibility of retrospectively introducing spectral information to conventional CT images. In theory, the dual-layer technology should not come with a dose or image quality penalty for conventional images. In this study, we evaluate the influence of a dual-layer detector (IQon Spectral CT, Philips) on the image quality of conventional CT images, by comparing these images with those of a conventional but otherwise technically comparable single-layer CT scanner (Brilliance iCT, Philips), by means of phantom experiments...
May 10, 2018: Medical Physics
https://www.readbyqxmd.com/read/29748700/myocardial-stress-perfusion-mri-experience-in-pediatric-and-young-adult-patients-following-arterial-switch-operation-utilizing-regadenoson
#18
Cory V Noel, Ramkumar Krishnamurthy, Prakash Masand, Brady Moffett, Tobiash Schlingmann, Benjamin Y Cheong, Rajesh Krishnamurthy
Dextro-transposition of the great arteries (D-TGA) is one of the most common cyanotic heart lesions. The arterial switch operation (ASO) is the preferred surgical palliation for D-TGA. One of the primary concerns following the ASO is complications arising from the coronary artery transfer. There is a need for myocardial perfusion assessment within ASO patients. There is no report on the utility of regadenoson as a stress agent in children following ASO. Our objective was to observe the safety and feasibility of regadenoson as a pharmacologic stressor for perfusion cardiac MR in a pilot cohort of pediatric and young-adult patients who have undergone ASO...
May 10, 2018: Pediatric Cardiology
https://www.readbyqxmd.com/read/29743331/what-is-the-quality-of-reporting-on-guideline-protocol-or-algorithm-implementation-in-adult-trauma-centres-protocol-for-a-systematic-review
#19
Lesley Gotlib Conn, Avery B Nathens, Laure Perrier, Barbara Haas, Aaron Watamaniuk, Diego Daniel Pereira, Ashley Zwaiman, Luis Teodoro da Luz
INTRODUCTION: Quality improvement (QI) is mandatory in trauma centres but there is no prescription for doing successful QI. Considerable variation in implementation strategies and inconsistent use of evidence-based protocols therefore exist across centres. The quality of reporting on these strategies may limit the transferability of successful initiatives across centres. This systematic review will assess the quality of reporting on guideline, protocol or algorithm implementation within a trauma centre in terms of the Revised Standards for Quality Improvement Reporting Excellence (SQUIRE 2...
May 9, 2018: BMJ Open
https://www.readbyqxmd.com/read/29740927/are-singleton-pregnancies-after-assisted-reproduction-technology-art-associated-with-a-higher-risk-of-placental-anomalies-compared-with-non-art-singleton-pregnancies-a-systematic-review-and-meta-analysis
#20
REVIEW
B G Vermey, A Buchanan, G M Chambers, E M Kolibianakis, J Bosdou, M G Chapman, C A Venetis
BACKGROUND: Placental anomalies (placenta praevia, placental abruption, morbidly adherent placenta and cord insertion anomalies) are associated with maternal and fetal morbidity and mortality. It has been suggested these might be more prevalent in pregnancies after assisted reproduction technology (ART). OBJECTIVES: To determine whether ART singleton pregnancies are associated with an increased risk of placental anomalies compared with non-ART singleton pregnancies...
May 8, 2018: BJOG: An International Journal of Obstetrics and Gynaecology
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