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https://www.readbyqxmd.com/read/28048473/we-de-201-11-sensitivity-and-specificity-of-verification-methods-based-on-total-reference-air-kerma-trak-or-on-user-provided-dose-points-for-graphically-planned-skin-hdr-brachytherapy
#1
A Damato, P Devlin, M Bhagwat, I Buzurovic, J Hansen, D O'Farrell, R Cormack
PURPOSE: To investigate the sensitivity and specificity of a novel verification methodology for image-guided skin HDR brachytherapy plans using a TRAK-based reasonableness test, compared to a typical manual verification methodology. METHODS: Two methodologies were used to flag treatment plans necessitating additional review due to a potential discrepancy of 3 mm between planned dose and clinical target in the skin. Manual verification was used to calculate the discrepancy between the average dose to points positioned at time of planning representative of the prescribed depth and the expected prescription dose...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047796/we-de-201-01-best-in-physics-therapy-a-fast-multi-target-inverse-treatment-planning-strategy-optimizing-dosimetric-measures-for-high-dose-rate-hdr-brachytherapy
#2
C Guthier, A Damato, A Viswanathan, J Hesser, R Cormack
PURPOSE: Inverse treatment planning (ITP) for interstitial HDR brachytherapy of gynecologic cancers seeks to maximize coverage of the clinical target volumes (tumor and vagina) while respecting dose-volume-histogram related dosimetric measures (DMs) for organs at risk (OARs). Commercially available ITP tools do not support DM-based planning because it is computationally too expensive to solve. In this study we present a novel approach that allows fast ITP for gynecologic cancers based on DMs for the first time...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047025/su-g-201-04-can-the-dynamic-library-of-flap-applicators-replace-treatment-planning-in-surface-brachytherapy
#3
I Buzurovic, P Devlin, J Hansen, D O'Farrell, M Bhagwat, S Friesen, A Damato, T Harris, R Cormack
PURPOSE: Contemporary brachytherapy treatment planning systems-(TPS) include the applicator model libraries to improve digitization; however, the library of surface-flap-applicators-(SFA) is not incorporated into the commercial TPS. We propose the dynamic library-(DL) for SFA and investigate if such library can eliminate applicator reconstruction, source activation and dose normalization. METHODS: DL was generated for the SFA using the C++class libraries of the Visualization Toolkit-(VTK) and Qt-application framework for complete abstraction of the graphical interface...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046887/we-fg-bra-02-docetaxel-eluting-brachytherapy-spacers-for-local-chemo-radiation-therapy-in-prostate-cancer
#4
J Belz, R Kumar, G Makrigiorgos, A D'Amico, P Nguyen, R Cormack, S Sridhar
PURPOSE: We propose an innovative combinatorial treatment strategy of Local ChemoRadiation Therapy (LCRT) using a sustained drug delivery platform in the form of a spacer to locally radio-sensitize the prostate with Docetaxel (DTX) enabling a synergistic cure with the use of lower radiation doses. These biodegradable spacers are physically similar to the inert spacers routinely used in prostate brachytherapy but are now loaded with formulations of DTX. METHODS: Spacers were loaded with ∼500µg Docetaxel (DTX) for prostate cancer studies...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046615/su-f-t-242-a-method-for-collision-avoidance-in-external-beam-radiation-therapy
#5
I Buzurovic, R Cormack
PURPOSE: We proposed a method for collision avoidance (CA) in external beam radiation therapy (EBRT). The method encompasses the analysis of all positions of the moving components of the beam delivery system such as the treatment table and gantry, including patient specific information obtained from the CT images. This method eliminates the need for time-consuming dry-runs prior to the actual treatments. METHODS: The QA procedure for EBRT requires that the collision should be checked prior to treatment...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046564/tu-fg-202-00-advances-and-innovations-in-image-guided-brachytherapy
#6
Robert Cormack
: The greater use of magnetic resonance imaging (MR) in brachytherapy, for both image based planning and image guided procedures, presents a number of challenges for the physicist involved. MR is widely acknowledged as the imaging modality of choice to appreciate a patient's pelvic anatomy and is thus used more often for brachytherapy of gynecologic and prostate cancers. Incorporating MR in brachytherapy treatments requires changes throughout the clinical workflow from implantation through target definition, applicator digitization and post-implant evaluation...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28036137/an-integrated-population-model-for-bird-monitoring-in-north-america
#7
Farshid S Ahrestani, James F Saracco, John R Sauer, Keith Pardieck, J Andrew Royle
Integrated population models (IPMs) provide a unified framework for simultaneously analyzing data sets of different types to estimate vital rates, population size, and dynamics; assess contributions of demographic parameters to population changes; and assess population viability. Strengths of an IPM include the ability to estimate latent parameters and improve the precision of parameter estimates. We present a hierarchical IPM that combines two broad-scale avian monitoring data sets; count data from the North American Breeding Bird Survey (BBS) and capture-recapture data from the Monitoring Avian Productivity and Survivorship (MAPS) program...
December 30, 2016: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28007521/children-with-challenging-airways-what-about-glidescope-%C3%A2-video-laryngoscopy
#8
Chrystelle Sola, Anne-Charlotte Saour, Christine Macq, Sophie Bringuier, Olivier Raux, Christophe Dadure
BACKGROUND: GlideScope® video-laryngoscopy is becoming increasingly used, including in paediatrics. However, to date, very few data are available on efficiency during situations involving difficult intubation. Our objective was to describe the usefulness of the GlideScope® in children with presumed challenging airway criteria. METHODS: In this observational study, all children with predicted criteria of potential difficult intubation and requiring general anaesthesia with tracheal intubation were prospectively enrolled over a 12-month period...
December 19, 2016: Anaesthesia, Critical Care & Pain Medicine
https://www.readbyqxmd.com/read/28005740/anesthesia-management-in-patients-with-choanal-atresia
#9
Zeynep Baysal Yildirim, Mehmet Akdağ, Feyzi Çelik, Elif Baysal
BACKGROUND: In this study, the anaesthetic management of newborn and infant patients who underwent surgery for choanal atresia between 2009 and 2016 is discussed in the light of recently published literature. METHODS: The diagnoses, demographic data, anaesthetic risk and duration, additional anomalies, airway management, and complications that arose in 41 patients with choanal atresia who were operated on between 2009 and 2016 were evaluated retrospectively by examining their medical and anaesthesia records...
November 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28003995/gait-training-in-chronic-stroke-using-walk-even-feedback-device-a-pilot-study
#10
V Krishnan, I Khoo, P Marayong, K DeMars, J Cormack
Asymmetrical gait and a reduction in weight bearing on the affected side are a common finding in chronic stroke survivors. The purpose of this pilot study was to determine the effectiveness of a shoe insole device that we developed, called Walk-Even, in correcting asymmetric gait in chronic stroke survivors. Six individuals with chronic (>6 months) stroke underwent 8 weeks of intervention with 2 sessions/week, each consisting of 20 minutes of gait training and 20 minutes of lower-extremity strength training...
2016: Neuroscience Journal
https://www.readbyqxmd.com/read/28003696/comparative-randomised-study-of-glidescope-%C3%A2-video-laryngoscope-versus-flexible-fibre-optic-bronchoscope-for-awake-nasal-intubation-of-oropharyngeal-cancer-patients-with-anticipated-difficult-intubation
#11
Essam Abd El-Halim Mahran, Mohamed Elsayed Hassan
BACKGROUND AND AIMS: Awake flexible fibre-optic bronchoscope (FFS) is the standard method of intubation in difficult airway in oral cancer patients. We decided to evaluate GlideScope(®) video laryngoscope (GL) for intubation as compared to the standard FFS for nasal intubation in such patients. METHODS: After the ethical committee approval, we included 54 oropharyngeal cancer patients divided randomly into two equal groups: Group G and Group F. After pre-medication and pre-oxygenation, awake nasal intubation was performed using GL in Group G and FFS in Group F...
December 2016: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/28002347/mcgrath-series-5-videolaryngoscope-vs-airtraq-dl-videolaryngoscope-for-double-lumen-tube-intubation-a-randomized-trial
#12
Li Wan, Mingfeng Liao, Li Li, Wei Qian, Rong Hu, Kun Chen, Chuanhan Zhang, Wenlong Yao
BACKGROUND: Many studies have shown Airtraq videolaryngoscope provided faster tracheal intubation and a higher success rate than other videolaryngoscopes. Recently, different types of videolaryngoscopes have been reported for use in double-lumen tube (DLT) intubation. However, the advantages and disadvantages between them remain undetermined for DLT intubation. In this study, we compared the Airtraq DL videolaryngoscope with the McGrath Series 5 videolaryngoscope for DLT intubation by experienced anesthesiologists...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27967334/identification-of-sensitive-measures-of-recovery-following-external-load-from-football-match-play
#13
Amber E Rowell, Robert J Aughey, William G Hopkins, Andrew M Stewart, Stuart J Cormack
: Objective measures of recovery from football match-play could be useful for assessing athletes' readiness to train, if sensitive to preceding match load. PURPOSE: To identify the sensitivity of countermovement-jump (CMJ) performance and concentration of salivary testosterone and cortisol relative to elite football match load. METHODS: CMJ performance and salivary hormones were measured in 18 elite football players before (27-, 1-h) and after (0...
December 14, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27942864/seasonal-survival-estimation-for-a-long-distance-migratory-bird-and-the-influence-of-winter-precipitation
#14
Sarah M Rockwell, Joseph M Wunderle, T Scott Sillett, Carol I Bocetti, David N Ewert, Dave Currie, Jennifer D White, Peter P Marra
Conservation of migratory animals requires information about seasonal survival rates. Identifying factors that limit populations, and the portions of the annual cycle in which they occur, are critical for recognizing and reducing potential threats. However, such data are lacking for virtually all migratory taxa. We investigated patterns and environmental correlates of annual, oversummer, overwinter, and migratory survival for adult male Kirtland's warblers (Setophaga kirtlandii), an endangered, long-distance migratory songbird...
December 9, 2016: Oecologia
https://www.readbyqxmd.com/read/27942053/ultrasonography-a-viable-tool-for-airway-assessment
#15
Preethi B Reddy, Pankaj Punetha, Kolli S Chalam
BACKGROUND AND AIMS: Accurate prediction of the Cormack-Lehane (CL) grade preoperatively can help in better airway management of the patient during induction of anaesthesia. Our aim was to determine the utility of ultrasonography in predicting CL grade. METHODS: We studied 100 patients undergoing general endotracheal anaesthesia. Mallampati (MP) class, thyromental distance (TMD) and sternomental distance (SMD) were noted. Ultrasound measurements of the anterior neck soft tissue thickness at the level of the hyoid (ANS-Hyoid), anterior neck soft tissue thickness at the level of the vocal cords (ANS-VC) and ratio of the depth of the pre-epiglottic space (Pre-E) to the distance from the epiglottis to the mid-point of the distance between the vocal cords (E-VC) were obtained...
November 2016: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/27941487/profound-hypopnea-with-xenon-anesthesia-in-a-free-diver
#16
John R Cormack, Jarrod Gott, Sarah Kondogiannis
No abstract text is available yet for this article.
December 9, 2016: A & A Case Reports
https://www.readbyqxmd.com/read/27933408/twelve-weeks-progressive-resistance-training-combined-with-protein-supplementation-beyond-habitual-intakes-increases-upper-leg-lean-tissue-mass-muscle-strength-and-extended-gait-speed-in-healthy-older-women
#17
Peter Francis, William Mc Cormack, Clodagh Toomey, Catherine Norton, Jean Saunders, Emmet Kerin, Mark Lyons, Philip Jakeman
The age-related decline in functional capability is preceded by a reduction in muscle quality. The purpose of this study was to assess the combined effects of progressive resistance training (PRT) and protein supplementation beyond habitual intakes on upper leg lean tissue mass (LTM), muscle quality and functional capability in healthy 50-70 years women. In a single-blinded, randomized, controlled design, 57 healthy older women (age 61.1 ± 5.1 years, 1.61 ± 0.65 m, 65.3 ± 15.3 kg) consumed 0.33 g/kg body mass of a milk-based protein matrix (PRO) for 12 weeks...
December 8, 2016: Biogerontology
https://www.readbyqxmd.com/read/27917482/not-enough-time-in-the-day-a-qualitative-assessment-of-in-school-physical-activity-policy-as-viewed-by-administrators-teachers-and-students
#18
Abigail Gamble, Sheryl L Chatfield, Michael L Cormack, Jeffrey S Hallam
BACKGROUND: In recent decades, the alignment of health and education has been at the forefront of school reform. Whereas the establishment of national in-school physical activity (ISPA) recommendations and state-level mandates demonstrates success, there has been less achievement in areas that address health disparities. The purpose of this investigation was to explore barriers and facilitators to implementing state-mandated ISPA policies in the Mississippi Delta. METHODS: Focus groups or interviews were conducted with district administrators, school principals, teachers, and students...
January 2017: Journal of School Health
https://www.readbyqxmd.com/read/27902612/intubation-without-use-of-stylet-for-mcgrath-videolaryngoscopy-in-patients-with-expected-normal-airway-a-randomized-noninferiority-trial
#19
Hyun Jeong Kwak, Sook Young Lee, Su Youn Lee, Yong Beom Kim, Jong Yeop Kim
BACKGROUND: During McGrath videolaryngoscope (VL) intubation, a styletted endotracheal tube maintaining an upward distal tip angle is recommended by some manufacturers. However, a styletted endotracheal tube can elicit rare but potentially serious complications. The purpose of this study was to demonstrate that a nonstyletted tube with exaggerated curvature would be noninferior to a styletted tube for orotracheal intubation using McGrath VL in patients with expected normal airway, by comparing the time to intubation and ease of intubation...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27896321/comparison-of-the-c-mac-video-laryngoscope-to-the-macintosh-laryngoscope-for-intubation-of-blunt-trauma-patients-in-the-ed
#20
Erkan Goksu, Taylan Kilic, Gunay Yildiz, Aslihan Unal, Mutlu Kartal
OBJECTIVES: We aimed to compare the performance of the C-MAC video laryngoscope (C-MAC) to the Macintosh laryngoscope for intubation of blunt trauma patients in the ED. MATERIAL AND METHODS: This was a prospective randomized study. The primary outcome measure is overall successful intubation. Secondary outcome measures are first attempt successful intubation, Cormack-Lehane (CL) grade, and indicators of the reasons for unsuccessful intubation at the first attempt with each device...
June 2016: Turkish Journal of Emergency Medicine
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