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https://www.readbyqxmd.com/read/29140463/anatomic-investigation-of-the-trajectory-for-stereotactic-laser-amygdalohippocampectomy
#1
Vanessa M Holanda, Abuzer Gungor, Serhat Baydin, Erik H Middlebrooks, Shabbar F Danish
BACKGROUND: Magnetic resonance imaging-guided laser interstitial thermal therapy (LITT) has emerged as a promising treatment for mesial temporal lobe epilepsy. Surgeons must understand the relevant anatomy that is traversed by the catheter and affected by ablation. OBJECTIVE: To study the anatomic structures crossed by the LITT catheter until it reaches the amygdala. METHODS: Three human cadaveric heads were implanted with catheters using a frameless stereotactic technique...
November 11, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29135452/drug-drug-interactions-in-cancer-chemotherapy-an-observational-study-in-a-tertiary-health-care-centre
#2
Harminder Singh, Baltej Singh
BACKGROUND: The objective of this study was to evaluate the occurrence of drug-drug interactions (DDIs) in patients on cancer chemotherapy, with the identification of risk factors for these DDIs. METHODS: This was a cross-sectional, descriptive study carried out at the Department of Onco-Radiation at Guru Gobind Singh Medical College, Faridkot, Punjab. The DDIs were recorded with the help of a drug interaction/interplay information software. RESULTS: In total, 354 interactions were identified from 283 patient records...
November 14, 2017: Drug Metabolism and Personalized Therapy
https://www.readbyqxmd.com/read/29117181/pancreatic-uptake-and-radiation-dosimetry-of-6-18f-fluoro-l-dopa-from-pet-imaging-studies-in-infants-with-congenital-hyperinsulinism
#3
Pradeep K Garg, Stephen J Lokitz, Lisa Truong, Burton Putegnat, Courtney Reynolds, Larry Rodriguez, Rachid Nazih, Jonathan Nedrelow, Miguel de la Guardia, John K Uffman, Sudha Garg, Paul S Thornton
METHODS: After injecting 25.6 ± 8.8 MBq (0.7 ± 0.2 mCi) of 18F-Fluoro-L-DOPA intravenously, three static PET scans were acquired at 20, 30, and 40 min post injection in 3-D mode on 10 patients (6 male, 4 female) with congenital hyperinsulinism. Regions of interest (ROIs) were drawn over several organs visible in the reconstructed PET/CT images and time activity curves (TACs) were generated. Residence times were calculated using the TAC data. The radiation absorbed dose for the whole body was calculated by entering the residence times in the OLINDA/EXM 1...
2017: PloS One
https://www.readbyqxmd.com/read/29114588/astro-s-advances-in-radiation-oncology-success-to-date-and-future-plans
#4
Robert C Miller, Sharad Goyal, Shearwood McClelland, Sabin Motwani, Charles Mayo, Tasneem Kaleem, Gregory Videtic, Kathleen Hintenlang
ASTRO's Advances in Radiation Oncology was launched as a new, peer-reviewed scientific journal in December 2015. More than 200 manuscripts have been submitted and 97 accepted for publication as of May 2017. As Advances enters its second year of publication, we have chosen to highlight subjects that will transform the way we practice radiation oncology in special issues or ongoing series: immunotherapy, biomedical analytics, and social media. A teaching case report contest for North American radiation oncology residents will be launched at American Society of Radiation Oncology 2017 to encourage participation in scientific publication by trainees early in their careers...
July 2017: Advances in Radiation Oncology
https://www.readbyqxmd.com/read/29105051/tumour-bed-boost-radiotherapy-for-women-after-breast-conserving-surgery
#5
REVIEW
Isabelle Kindts, Annouschka Laenen, Tom Depuydt, Caroline Weltens
BACKGROUND: Breast-conserving therapy, involving breast-conserving surgery followed by whole-breast irradiation and optionally a boost to the tumour bed, is a standard therapeutic option for women with early-stage breast cancer. A boost to the tumour bed means that an extra dose of radiation is applied that covers the initial tumour site. The rationale for a boost of radiotherapy to the tumour bed is that (i) local recurrence occurs mostly at the site of the primary tumour because remaining microscopic tumour cells are most likely situated there; and (ii) radiation can eliminate these causative microscopic tumour cells...
November 6, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29079250/an-assessment-of-the-quality-of-ct-radiation-dose-information-on-the-internet
#6
Siobhán O'Neill, David Glynn, Kevin P Murphy, Karl James, Maria Twomey, Richard Kavanagh, Owen J O'Connor, Michael M Maher
OBJECTIVES: Our goal was to ascertain the quality of health information related to CT radiation exposure using a simulated Internet search and from incident information that may be available during day-to-day Internet usage. METHODS: We entered 14 terms relating to information on CT dose into the most commonly used Internet search engine and analyzed the first 100 web page results for each. A Rich Search Site (RSS) feed search was also used to evaluate incidental information over a 12-week period in 2014...
October 24, 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/29079054/ultrasound-assessment-of-bone-healing-after-root-end-surgery-echoes-back-to-patient-s-safety
#7
Frederik Curvers, Nastaran Meschi, Anke Vanhoenacker, Olaf Strijbos, Maarten Van Mierlo, Paul Lambrechts
INTRODUCTION: The aim of this study was to present ultrasound imaging (UI) techniques as promising and safe tools for the follow-up of root-end surgery (RES) in vivo. METHODS: The study included 8 patients who underwent RES. All were followed up using UI at 1 week, 1 month, 2 months, 3 months, and 6 months (if necessary) after RES. The bony crypt was defined on the ultrasound image, and the following observations were made during follow-up: cortical bone interruption and surface area measurement of the residual echoic bony crypt image...
October 24, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/29068391/synthesis-and-radioprotective-activity-of-mitochondria-targeted-dihydropyridines-in-vitro
#8
Yurui Zhang, Junying Wang, Yuanyuan Li, Feng Wang, Fujun Yang, Wenqing Xu
The radiation-induced damage to mitochondrial oxidative respiratory chain could lead to generating of superoxide anions (O(2-)) and secondary reactive oxygen species (ROS), which are the major resources of continuous ROS production after radiation. Scavenging radiation-induced ROS effectively can help mitochondria to maintain their physiological function and relief cells from oxidative stress. Dihydropyridines (DHPs) are biomimetic hydrogen sources that could protect cells against radiation damage. In this study, we designed and synthetized three novel mitochondrial-targeted dihydropyridines (Mito-DHPs) that utilize the mitochondrial membrane potential to enter the organelle and scavenge ROS...
October 25, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29063700/employment-for-radiation-oncologists-in-australia-and-new-zealand-recent-graduates-survey-of-experiences-and-perspectives
#9
John Leung, Sanjeewanie Kariyasawam, Dion Forstner, Raphael Chee, Melissa James
INTRODUCTION: This paper reports the key findings of the first survey of recent Radiation Oncology graduates in Australia, New Zealand (ANZ) and Singapore. It explores their experiences in entering the workforce, challenges and perspectives. METHODS: The survey was conducted in April and May 2016 focusing on graduates from 2013 to 2015. The questions related to relocation, current employment, experiences in finding a job, intentions regarding rural work, job satisfaction and perceptions of the job market...
October 23, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/29049739/cataract-avoidance-with-proton-therapy-in-ocular-melanomas
#10
Juliette Thariat, Sophie Jacob, Jean-Pierre Caujolle, Celia Maschi, Stéphanie Baillif, Gaelle Angellier, Thibaud Mathis, Laurence Rosier, Adela Carnicer, Joel Hérault, Julia Salleron
Purpose: The lens is a radiosensitive organ. Any dose of cephalic irradiation can give rise to radiation-induced cataracts. Contrary to other forms of radiotherapy, proton therapy (PT) can spare all or part of the lens due to accurate dose deposition. We investigated whether a lens-sparing approach was relevant to avoid cataracts in uveal melanoma patients. Methods: Patients were referred for PT from onco-ophthalmologists of private and academic institutions. Patients without preexisting cataracts or implants were entered in a prospective database...
October 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28991813/using-discrete-event-simulation-to-promote-quality-improvement-and-efficiency-in-a-radiation-oncology-treatment-center
#11
Robin M Famiglietti, Emily C Norboge, Valentine Boving, James R Langabeer, Thomas A Buchholz, Osama Mikhail
BACKGROUND: To meet demand for radiation oncology services and ensure patient-centered safe care, management in an academic radiation oncology department initiated quality improvement efforts using discrete-event simulation (DES). Although the long-term goal was testing and deploying solutions, the primary aim at the outset was characterizing and validating a computer simulation model of existing operations to identify targets for improvement. METHODS: The adoption and validation of a DES model of processes and procedures affecting patient flow and satisfaction, employee experience, and efficiency were undertaken in 2012-2013...
October 2017: Quality Management in Health Care
https://www.readbyqxmd.com/read/28979789/water-lilies-as-emerging-models-for-darwin-s-abominable-mystery
#12
REVIEW
Fei Chen, Xing Liu, Cuiwei Yu, Yuchu Chen, Haibao Tang, Liangsheng Zhang
Water lilies are not only highly favored aquatic ornamental plants with cultural and economic importance but they also occupy a critical evolutionary space that is crucial for understanding the origin and early evolutionary trajectory of flowering plants. The birth and rapid radiation of flowering plants has interested many scientists and was considered 'an abominable mystery' by Charles Darwin. In searching for the angiosperm evolutionary origin and its underlying mechanisms, the genome of Amborella has shed some light on the molecular features of one of the basal angiosperm lineages; however, little is known regarding the genetics and genomics of another basal angiosperm lineage, namely, the water lily...
2017: Horticulture Research
https://www.readbyqxmd.com/read/28967564/multidisciplinary-international-survey-of-post-operative-radiation-therapy-practices-after-nipple-sparing-or-skin-sparing-mastectomy
#13
Gustavo Nader Marta, Philip Poortmans, Alfredo C de Barros, José Roberto Filassi, Ruffo Freitas Junior, Riccardo A Audisio, Max Senna Mano, Sarkis Meterissian, Sarah M DeSnyder, Thomas A Buchholz, Tarek Hijal
PURPOSE/OBJECTIVE(S): Skin sparing mastectomy (SSM) and nipple-sparing mastectomy (NSM) have entered routine surgical practice for breast cancer, though their oncologic safety has not been established in randomized controlled trials. The aim of this study was to evaluate and compare radiation oncologists' and breast surgeons' opinions concerning the indications of post-operative radiation therapy (PORT) after SSM and NSM. MATERIALS/METHODS: Radiation oncologists and breast surgeons from North America, South America and Europe were invited to contribute in this study...
September 19, 2017: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28963700/enterocutaneous-fistulas-a-primer-for-radiologists-with-emphasis-on-ct-and-mri
#14
REVIEW
Massimo Tonolini, Paolo Magistrelli
Enterocutaneous fistulas (ECFs) represent abnormal communications between the gastrointestinal tract and the skin. Nowadays, the majority (~80%) of ECFs develops secondary to abdominal surgeries; alternative, less common causes include chronic inflammatory bowel diseases (IBD) such as Crohn's disease, tumours, and radiation enteritis in descending order of frequency. These rare disorders require thorough patient assessment and multidisciplinary management to limit the associated morbidity and mortality. This pictorial review includes an overview of causes, clinical manifestations, complications and management of ECFs...
September 29, 2017: Insights Into Imaging
https://www.readbyqxmd.com/read/28923125/why-we-write-nuclear-history
#15
David K Hecht
Nuclear history always compels. Scholars (and readers) can immerse themselves in the existential threat posed by the atomic bomb and its successor weapons, the tantalizing prospect of carbon-free energy, or the study of a natural phenomenon deeply at odds with our everyday experience of the world. There is thus always something profound at stake when we write nuclear history - be it physical, economic or intellectual. And while it may seem that the end of the Cold War should have diminished the academic attention accorded to the subject, it actually just allowed the historiography to evolve...
September 2017: British Journal for the History of Science
https://www.readbyqxmd.com/read/28922698/survival-improvements-with-adjuvant-therapy-in-patients-with-glioblastoma
#16
Dasantha Jayamanne, Helen Wheeler, Raymond Cook, Charles Teo, David Brazier, Geoff Schembri, Marina Kastelan, Linxin Guo, Michael F Back
BACKGROUND: Evaluate survival of patients diagnosed with glioblastoma multiforme (GBM) managed with adjuvant intensity modulated radiation therapy and temozolomide since the introduction of the European Organisation for Research and Treatment of Cancer and National Cancer Institute of Canada Clinical Trials Group (EORTC-NCIC) protocol. METHODS: All patients with GBM managed between May 2007 and December 2014 with EORTC-NCIC protocol were entered into a prospective database...
September 18, 2017: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/28916819/continuous-beam-steering-through-broadside-using-asymmetrically-modulated-goubau-line-leaky-wave-antennas
#17
Xiao-Lan Tang, Qingfeng Zhang, Sanming Hu, Yaqiang Zhuang, Abhishek Kandwal, Ge Zhang, Yifan Chen
Goubau line is a single-conductor transmission line, featuring easy integration and low-loss transmission properties. Here, we propose a periodic leaky-wave antenna (LWA) based on planar Goubau transmission line on a thin dielectric substrate. The leaky-wave radiations are generated by introducing periodic modulations along the Goubau line. In this way, the surface wave, which is slow-wave mode supported by the Goubau line, achieves an additional momentum and hence enters the fast-wave region for radiations...
September 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28913164/haemoprotozoa-making-biological-sense-of-molecular-phylogenies
#18
REVIEW
Peter O'Donoghue
A range of protistan parasites occur in the blood of vertebrates and are transmitted by haematophagous invertebrate vectors. Some 48 genera are recognized in bood primarily on the basis of parasite morphology and host specificity; including extracellular kinetoplastids (trypanosomatids) and intracellular apicomplexa (haemogregarines, haemococcidia, haemosporidia and piroplasms). Gene sequences are available for a growing number of species and molecular phylogenies often link parasite and host or vector evolution...
December 2017: International Journal for Parasitology. Parasites and Wildlife
https://www.readbyqxmd.com/read/28888451/application-of-gamma-radiation-for-the-reduction-of-norovirus-and-the-quality-stability-in-optimally-ripened-cabbage-kimchi
#19
Shin Young Park, Sang-Do Ha
Optimally ripened commercial cabbage kimchi is considered the main cause of enteric norovirus (NoV) outbreaks in Korea. This study investigated the effect of 1-10kGy gamma radiation on the inactivation of murine norovirus-1 (MNV-1; initial inoculum of 5-6log10PFU/ml), used as a human NoV surrogate, in kimchi. The effects of gamma radiation on the pH and acidity were also examined to address the index of quality and fermentation, respectively. Titers of MNV-1 significantly reduced (p<0.05) in kimchi subjected to increasing gamma radiation doses: MNV-1 titers in kimchi after 1, 3, 5, 7, and 10kGy were 4...
October 2017: Food Research International
https://www.readbyqxmd.com/read/28867544/standardization-of-radiation-therapy-dose-for-locally-advanced-non-small-cell-lung-cancer-through-changes-to-a-lung-cancer-clinical-pathway-in-a-large-integrated-comprehensive-cancer-center-network
#20
Pooja Karukonda, Brian J Gebhardt, Zachary D Horne, Dwight E Heron, Sushil Beriwal
PURPOSE: The results of Radiation Therapy Oncology Group (RTOG) 0617, which randomized patients with stages IIIA/IIIB non-small cell lung cancer (NSCLC) to definitive chemoradiation therapy to 60 Gy versus 74 Gy, demonstrated a detrimental survival impact with high-dose radiation therapy. We evaluated the impact of changes to a provider-driven clinical pathway (CP) guiding management of NSCLC on practice throughout our cancer center network. METHODS AND MATERIALS: In 2001, we implemented a CP for management of stage IIIA/IIIB NSCLC with definitive chemoradiation therapy...
July 8, 2017: Practical Radiation Oncology
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