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https://www.readbyqxmd.com/read/28888744/-stereotactic-body-radiotherapy-for-liver-tumors-state-of-the-art
#1
O Riou, D Azria, F Mornex
Thanks to the improvement in radiotherapy physics, biology, computing and imaging, patients presenting with liver tumors can be efficiently treated by radiation. Radiotherapy has been included in liver tumors treatment guidelines at all disease stages. Liver stereotactic radiotherapy has to be preferred to standard fractionated radiotherapy whenever possible, as potentially more efficient because of higher biological equivalent dose. Liver stereotactic radiotherapy planning and delivery require extensive experience and optimal treatment quality at every step, thus limiting its availability to specialized centres...
September 6, 2017: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/28866897/superior-target-delineation-for-stereotactic-body-radiotherapy-of-bone-metastases-from-renal-cell-carcinoma-on-mri-compared-to-ct
#2
Fieke M Prins, Joanne M van der Velden, Anne S Gerlich, Alexis N T J Kotte, Wietse S C Eppinga, Nicolien Kasperts, Jorrit J Verlaan, Frank A Pameijer, Linda G W Kerkmeijer
BACKGROUND: In metastatic renal cell carcinoma (mRCC) there has been a treatment shift towards targeted therapy, which has resulted in improved overall survival. Therefore, there is a need for better local control of the tumor and its metastases. Image-guided stereotactic body radiotherapy (SBRT) in bone metastases provides improved symptom palliation and local control. With the use of SBRT there is a need for accurate target delineation. The hypothesis is that MRI allows for better visualization of the extend of bone metastases in mRCC and will optimize the accuracy of tumor delineation for stereotactic radiotherapy purposes, compared with CT only...
July 11, 2017: Annals of Palliative Medicine
https://www.readbyqxmd.com/read/28844506/-stereotactic-body-radiation-therapy-for-hepatic-malignancies-organs-at-risk-uncertainties-margins-doses
#3
T Lacornerie, E Rio, M-A Mahé
Stereotactic body radiation therapy for primary and metastatic hepatic malignancies can be performed in association and/or as an alternative to surgery and radiofrequency. The consequences of the great number of techniques available are heterogeneity in contouring, dose prescription and in determination of dose constraints for organs at risk. The objective of this paper is to improve the quality and safety and to help the diffusion of this technique for a majority of patients. In 2016, the French Society of Radiation Oncology (SFRO) published guidelines for external radiotherapy and brachytherapy ("Recorad")...
August 24, 2017: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/28829821/a-meta-analysis-is-there-any-association-between-mir-608-rs4919510-polymorphism-and-breast-cancer-risks
#4
Jing Wang, Xiangyi Kong, Zeyu Xing, Xiangyu Wang, Jie Zhai, Yi Fang, Jidong Gao
OBJECT: To combine the data from previously conducted studies about the associations between miR-608 rs4919510 polymorphism (C>G) and breast cancer risks. METHODS: According to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, we conducted a systematic review of the related literatures searched from PubMed, Embase, Cochrane Library, Web of Science, and China National Knowledge Internet (CNKI) (time: ~ December 2016). Using DerSimonian-Laird random-effects models [Pooling Model: Mantel Haenszel (MH)], odd ratios (ORs) with 95% confidence intervals (95% CIs) were estimated in the allele model, homozygote model, heterozygote model, dominant model and recessive model...
2017: PloS One
https://www.readbyqxmd.com/read/28822408/-the-application-of-artificial-neural-network-on-the-assessment-of-lexical-tone-production-of-pediatric-cochlear-implant-users
#5
Y T Mao, Z M Chen, L Xu
Objective: The present study was carried out to explore the tone production ability of the Mandarin-speaking children with cochlear implants (CI) by using an artificial neural network model and to examine the potential contributing factors underlining their tone production performance. The results of this study might provide useful guidelines for post-operative rehabilitation processes of pediatric CI users. Methods: Two hundred and seventy-eight prelingually deafened children who received unilateral CI participated in this study...
August 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28799808/decision-making-among-patients-and-their-family-in-als-care-a-review
#6
Geraldine Foley, Geralyn Hynes
OBJECTIVES: Practice guidelines in ALS care emphasise the role of the patient and their family in the decision-making process. We aimed to examine the ALS patient/family relationship in the decision-making process and to ascertain how patients and their family can shape one another's decisions pertaining to care. METHODS: We conducted a review of peer-reviewed empirical research, published in full and in English between January 2007 and January 2017, relating to care decision-making among ALS patients and their family...
August 11, 2017: Amyotrophic Lateral Sclerosis and Frontotemporal Degeneration
https://www.readbyqxmd.com/read/28797999/long-term-results-of-post-operative-pelvic-image-guided-intensity-modulated-radiotherapy-in-gynecological-malignancies
#7
Rashi Agrawal, Sowmiya Prithiviraj, Dinesh Singh, Vaishali Zamre, Sandeep Agrawal, Arun Kumar Goel, Kanika Gupta, Bala Subramanian
OBJECTIVE: To assess late clinical outcomes with image guided intensity modulated radiotherapy (IG- IMRT) in gynecological malignancies. PATIENTS AND METHODS: We have been practicing IG IMRT for gynecological malignancies since January 2009. Here we are presenting our experience with this modern technique at median follow up of 38 months. During whole treatment bladder filling protocol was followed. Both target volumes and critical structures were contoured according to RTOG guidelines...
May 2017: Gulf Journal of Oncology
https://www.readbyqxmd.com/read/28709427/investigation-of-irradiated-volume-in-linac-based-brain-hypo-fractionated-stereotactic-radiotherapy
#8
Mark Ruschin, Arjun Sahgal, Hany Soliman, Sten Myrehaug, May Tsao, Collins Yeboah, Arman Sarfehnia, Brige Chugh, Alex Kiss, Young Lee
BACKGROUND: Emerging techniques such as brain hypo-fractionated radiotherapy (HF-RT) involve complex cases with limited guidelines for plan quality and normal tissue tolerances. The purpose of the present study was to statistically parameterize irradiated volume independently of dose prescription, or margin to determine what spread in achievable irradiated volume one may expect for a given case. METHODS: We defined EXT as the total tissue within the external contour of the patient (including the target) and we defined BMP as the contour of the brain minus PTV...
July 14, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28623847/toxicity-after-post-prostatectomy-image-guided-intensity-modulated-radiotherapy-using-australian-guidelines
#9
Stephen Chin, Noel J Aherne, Andrew Last, Hassan Assareh, Thomas P Shakespeare
INTRODUCTION: We evaluated single institution toxicity outcomes after post-prostatectomy radiotherapy (PPRT) via image-guided intensity-modulated radiation therapy (IG-IMRT) with implanted fiducial markers following national eviQ guidelines, for which late toxicity outcomes have not been published. METHODS: Prospectively collected toxicity data were retrospectively reviewed for 293 men who underwent 64-66 Gy IG-IMRT to the prostate bed between 2007 and 2015. RESULTS: Median follow-up after PPRT was 39 months...
June 17, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28620579/delineation-of-the-prostate-bed-the-invisible-target-is-still-an-issue
#10
Igor Latorzeff, Paul Sargos, Geneviève Loos, Stéphane Supiot, Stéphane Guerif, Christian Carrie
For pathological high-risk prostate cancer, adjuvant irradiation has shown a survival benefit. Phase III studies have highlighted that half men would face biochemical relapse and would be candidate for radiotherapy at adjuvant or salvage times. Despite at least four published international contouring guidelines from different collaborative groups, discrepancies remain for volumes, delineation, and margins to be considered in order to optimize radiotherapy planning. This article from "Groupe d'Etude des Tumeurs UroGénitales (GETUG)" members will focus on controversies to help clinicians to create best volume delineation for adjuvant or salvage post prostatectomy radiotherapy...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28619290/sparing-dysphagia-aspiration-related-structures-using-novel-hybrid-volumetric-modulated-arc-therapy
#11
Sitaraman BalajiSubramanian, Karunakaran Balaji, Moorthi Thirunavukarasu, Sumana Premkumar
PURPOSE: Studies using split field IMRT to spare dysphagia/aspiration related structures (DARS) have raised concern regarding dose uncertainty at matchline. This study explores the utility of hybrid VMAT in sparing the DARS and assesses matchline dose uncertainty in postoperative oral cavity cancer patients and compares it with VMAT. METHODS & MATERIALS: Ten postoperative oral cavity cancer patients were planned with h-VMAT and VMAT using the same planning CT dataset...
July 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/28616932/analysis-of-accuracy-and-user-performance-evaluation-of-a-new-wireless-enabled-blood-glucose-monitoring-system-that-links-to-a-smart-mobile-device
#12
Malte Rutschmann
In the study published in Journal of Diabetes, Science and Technology, Timothy S. Bailey and coauthors evaluated system accuracy and user performance of a new, wireless-enabled blood glucose monitoring system, the Contour Plus ONE blood glucose monitoring system. The authors declare that the study protocol was performed according to ISO 15197:2013 guidelines, in particular to clauses 6.3 and 8. Results show a high level of accuracy of the product in a laboratory setting as well as in the hands of lay users...
July 2017: Journal of Diabetes Science and Technology
https://www.readbyqxmd.com/read/28574390/clinical-protocols-preparation-impression-and-bonding-of-all-ceramic-glass-based-disilicate-lithium-crowns-review-and-case-report
#13
D Vadachkoria, O Vadachkoria
Using contemporary materials and techniques, nowadays we can offer the patients much needed restorations while achieving the desired aesthetics. The maxillary incisors are supremely important in the appearance of a smile. By establishing proper size, contours, vitality, translucency and relationship with the surrounding teeth and soft tissue, we can help create the smile of their dream. In modern dentistry, there are two major recent developments - the dentine bonding and stronger all-ceramic crown systems...
April 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28567157/modified-open-suprapectoral-endobutton-tension-slide-tenodesis-technique-of-long-head-of-biceps-with-restored-tendon-tension-length
#14
Jagadish Prabhu, Mohammed Khalid Faqi, Rashad Khamis Awad, Fahad Alkhalifa
BACKGROUND: The vast majority of biceps tendon ruptures occurs at the proximal insertion and almost always involves the long head. There are several options for long head of biceps (LHB) tenodesis with advantage and disadvantages of each technique. We believe that the suprapectoral LHB tenodesis described in this article enables the restoration of the anatomic length-tension relation in a technically reproducible manner, when following the guidelines set forth in this article, and restores biceps contour and function adequately with a low risk of complications...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/28543088/3d-quantitative-structure-activity-relationship-and-docking-studies-of-coumarin-derivatives-as-tissue-kallikrein-7-inhibitors
#15
Xin Zheng, Mengxi He, Xiao Tan, Jun Zheng, Fangyu Wang, Sen Liu
OBJECTIVES: Kallikrein 7 (KLK7) is a secreted serine protease that plays important roles in skin desquamation and tumour progression, which makes it an attracting drug target. To guide the design of KLK7 inhibitors, a series of coumarin-based inhibitors were used to perform 3D-quantitative structure-activity relationship analysis. METHODS: 3D conformations of 37 inhibitors were generated and used to construct CoMFA and CoMSIA models. Then a complex model between the inhibitors and KLK7 was built with molecular docking...
May 23, 2017: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/28534430/variability-in-axillary-lymph-node-delineation-for-breast-cancer-radiotherapy-in-presence-of-guidelines-on-a-multi-institutional-platform
#16
Delia Ciardo, Angela Argenone, Genoveva Ionela Boboc, Francesca Cucciarelli, Fiorenza De Rose, Maria Carmen De Santis, Alessandra Huscher, Edy Ippolito, Maria Rosa La Porta, Lorenza Marino, Ilaria Meaglia, Isabella Palumbo, Francesca Rossi, Paolo Alpi, Mario Bignardi, Alessio Bonanni, Domenico Cante, Tino Ceschia, Letizia Fabbietti, Marco Lupattelli, Elisa Donatella Mantero, Alessia Monaco, Patrizia Porcu, Vincenzo Ravo, Sonia Silipigni, Angelo Tozzi, Vincenza Umina, Dario Zerini, Luigi Bordonaro, Giorgia Capezzali, Elena Clerici, Sarah Pia Colangione, Michela Dispinzieri, Jessica Dognini, Laura Donadoni, Sara Falivene, Alessandra Fozza, Barbara Grilli, Roberta Guarnaccia, Eva Iannacone, Valentina Lancellotta, Agnese Prisco, Rosalinda Ricotti, Roberto Orecchia, Barbara Alicja Jereczek-Fossa, Maria Cristina Leonardi
AIM: To quantify the variability between radiation oncologists (ROs) when outlining axillary nodes in breast cancer. MATERIAL AND METHODS: For each participating center, three ROs with different levels of expertise, i.e., junior (J), senior (S) and expert (E), contoured axillary nodal levels (L1, L2, L3 and L4) on the CT images of three different patients (P) of an increasing degree of anatomical complexity (from P1 to P2 to P3), according to contouring guidelines...
August 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28532608/assessment-of-the-novel-online-delineation-workshop-dummy-run-approach-using-falcon-within-a-european-multicentre-trial-in-cervical-cancer-raids
#17
Eleonor Rivin Del Campo, Sofia Rivera, María Martínez-Paredes, Philippe Hupé, Andrea Slocker Escarpa, Isabelle Borget, Renaud Mazeron, Suzy Scholl, Amalia Palacios Eito, Christine Haie-Meder, Cyrus Chargari, Eric Deutsch
BACKGROUND AND PURPOSE: Online delineation workshops (ODW) permit training of geographically dispersed participants. The purpose is to evaluate the methodology of an ODW using FALCON to harmonize delineation within a European multicentre trial on locally advanced cervical cancer (LACC). MATERIAL AND METHODS: Two ODW included 46 clinicians (14 centres). Clinicians completed baseline (C1), guideline (C2) and final contours (C3) for external beam radiotherapy (EBRT) and brachytherapy (BT) for LACC...
May 19, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28530847/repeatability-of-mr-elastography-of-liver-a-meta-analysis
#18
Suraj D Serai, Nancy A Obuchowski, Sudhakar K Venkatesh, Claude B Sirlin, Frank H Miller, Edward Ashton, Patricia E Cole, Richard L Ehman
Purpose To perform a meta-analysis to generate an estimate of the repeatability coefficient (RC) for magnetic resonance (MR) elastography of the liver. Materials and Methods A systematic search of databases was performed for publications on MR elastography during the 10-year period between 2006 and 2015. The identified studies were screened independently and were verified reciprocally by all authors. Two reviewers independently determined the percentage RC and effective sample size from each article. A forest plot was constructed of the percentage RC estimates from the 12 studies...
May 22, 2017: Radiology
https://www.readbyqxmd.com/read/28512651/premium-protocol-for-planning-a-periodontal-restorative-approach-conservative-predictable-%C3%A2-and-reproducible
#19
Leonardo Fernandes da Cunha, Cibele de Almeida Kintopp, Marina Samara Baechtold, Gisele Maria Correr, Carla Castiglia Gonzaga
Planning oral rehabilitation that involves an interdisciplinary approach is challenging, especially when it includes changes in the morphologic aspects of teeth and the architecture of gingival tissues. Patients commonly complain about the esthetics of maxillary anterior teeth, especially when diastemata are present. A guideline known as the golden proportion can be used to establish adequate width distribution of anterior teeth. Tooth proportion is also affected by incisogingival tooth length, hence gingival contouring should be evaluated as well...
2017: Quintessence International
https://www.readbyqxmd.com/read/28508877/an-overview-of-female-to-male-gender-confirming-surgery
#20
REVIEW
Shane D Morrison, Mang L Chen, Curtis N Crane
Gender dysphoria is estimated to occur in approximately 25 million people worldwide, and can have severe psychosocial sequelae. Medical and surgical gender transition can substantially improve quality-of-life outcomes for individuals with gender dysphoria. Individuals seeking to undergo female-to-male (FtM) transition have various surgical options available for gender confirmation, including facial and chest masculinization, body contouring, and genital surgery. The World Professional Association for Transgender Health guidelines should be met before the patient undergoes surgery, to ensure that gender-confirming surgery is appropriate and indicated...
August 2017: Nature Reviews. Urology
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