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https://www.readbyqxmd.com/read/28937269/dose-escalation-using-contact-x-ray-brachytherapy-papillon-for-rectal-cancer-does-it-improve-the-chance-of-organ-preservation
#1
Arthur Sun Myint, Fraser McLean Smith, Simon William Gollins, Helen Wong, Christopher Rao, Karen Whitmarsh, Raj Sripadam, Paul Rooney, Michael Jeremy Hershman, Zsolt Fekete, Kate Perkins, D Mark Pritchard
OBJECTIVE: A watch and wait policy for patients with a complete clinical response (cCR) after external beam chemoradiotherapy (EBCRT) for rectal cancer is an attractive option. However, approximately a third of tumours will regrow, which requires surgical salvage for cure. We assessed whether contact x-ray brachytherapy (CXB) can improve organ preservation by avoiding surgery for local regrowth. METHODS: From our institutional database, we identified 200 of 573 patients treated by CXB from 2003 to 2012...
September 20, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28933523/the-use-of-3d-image-fusion-for-percutaneous-transluminal-angioplasty-and-stenting-of-iliac-artery-obstructions-validation-of-the-technique-and-systematic-review-of-literature
#2
Seline R Goudeketting, Stefan G Heinen, Daniel A VAN DEN Heuvel, Marco J VAN Strijen, Michiel W DE Haan, Cornelis H Slump, Jean-Paul DE Vries
BACKGROUND: The effect of the insertion of guidewires and catheters on fusion accuracy of the three-dimensional (3D) image fusion technique during iliac percutaneous transluminal angioplasty (PTA) procedures has not yet been investigated. METHODS: Technical validation of the 3D fusion technique was evaluated in 11 patients with common and/or external iliac artery lesions. A preprocedural contrast-enhanced magnetic resonance angiogram (CE-MRA) was segmented and manually registered to a cone-beam computed tomography image created at the beginning of the procedure for each patient...
September 20, 2017: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/28931199/maxillary-sinus-mucoceles-and-other-side-effects-of-external-beam-radiation-in-the-pediatric-patient-a-cautionary-tale
#3
Anthony Sheyn, Tate Naylor, Felicity Lenes-Voit, Eric Berg
A sinonasal mucocele can develop after the obstruction of a sinus ostium, which can occur secondary to trauma, infection, a neoplasm, or an iatrogenic cause. These mucoceles typically arise in the frontal and ethmoid sinuses. Sinonasal mucoceles are epithelium-lined cysts that can gradually expand to fill a paranasal sinus. They can present with ophthalmologic, rhinologic, and neurologic symptoms. There are reports in the literature of sinonasal mucocele development after radiation for nasopharyngeal carcinoma...
September 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28930812/role-of-radiation-therapy-in-the-multidisciplinary-management-of-uterine-carcinosarcoma
#4
Jillian R Gunther, Eva N Christensen, Pamela K Allen, Lois M Ramondetta, Anuja Jhingran, Nicole D Fleming, Elizabeth D Euscher, Karen H Lu, Patricia J Eifel, Ann H Klopp
OBJECTIVES: This study aimed to evaluate the impact of radiation therapy on outcomes for patients with uterine carcinosarcoma (UC). METHODS/MATERIALS: We retrospectively reviewed the records of 155 women with stage I (98), II (11), or III (46) UC who underwent total abdominal hysterectomy/bilateral salpingo-oophorectomy at our institution between 1990 and 2011. Survival rates were assessed using the Kaplan-Meier method and log-rank test. Univariate and multivariate Cox regression analyses were performed...
September 19, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28930810/oncological-outcomes-of-stage-ii-endometrial-cancer-a-retrospective-analysis-of-250-cases
#5
Nejat Ozgul, Gokhan Boyraz, Mehmet Coskun Salman, Murat Gultekin, Kunter Yuce, Akbar Ibrahimov, Anil Erturk, Kemal Gungorduk, Varol Gulseren, Muzaffer Sanci, Osman Turkmen, Alper Karalok, Gunsu Kimyon, Taner Turan, Nazli Topfedaisi Ozkan, Mehmet Mutlu Meydanli, Tayfun Gungor, Hulya Ayik, Tayup Simsek
OBJECTIVE: The aim of this study was to investigate the effect of different surgical approaches, adjuvant therapy, and pathological characteristics on oncological outcomes in patients with 2009 International Federation of Gynecology and Obstetrics (FIGO) stage II endometrial cancer (EC). METHODS: A multicenter, retrospective department database review was performed to identify patients with FIGO 2009 stage II EC who underwent surgical staging between 2002 and 2015 at 5 gynecologic oncology centers in Turkey...
September 19, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28929373/security-belt-for-wireless-implantable-medical-devices
#6
Selman Kulaç
In this study, a new protective design compatible with existing non-secure systems was proposed, since it is focused on the secure communication of wireless IMD systems in all transmissions. This new protector is an external wearable device and appears to be a belt fitted around for the patients IMD implanted. However, in order to provide effective full duplex transmissions and physical layer security, some sophisticated transceiver antennas have been placed on the belt. In this approach, beam-focused multi-antennas in optimal positions on the belt are randomly switched when transmissions to the IMD are performed and multi-jammer switching with MRC combining or majority-rule based receiving techniques are applied when transmissions from the IMD are carried out...
September 19, 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/28929037/risk-of-death-from-prostate-cancer-with-and-without-definitive-local-therapy-when-gleason-pattern-5-is-present-a-surveillance-epidemiology-and-end-results-analysis
#7
Jonathan Frandsen, Andrew Orton, Dennis Shrieve, Jonathan Tward
Purpose The purpose is to evaluate the patterns of care and comparative effectiveness for cause-specific and overall survival of definitive local treatments versus conservatively managed men with a primary or secondary Gleason pattern of 5. Methods and materials Patients diagnosed from 2004 to 2012 with a primary or secondary Gleason pattern of 5 N0M0 prostate cancer were extracted from the Surveillance, Epidemiology, and End Results (SEER) database. Kaplan-Meier and Cox regression analyses were used to estimate the survival...
July 10, 2017: Curēus
https://www.readbyqxmd.com/read/28919294/studying-the-efficacy-of-escalated-dose-conformal-radiation-therapy-in-prostate-carcinoma-pakistan-experience
#8
Asad Zamir, Ahmad Farooq, Hasan Nisar, Ismat Fatima, Irfan Ullah Khan, Misbah Masood, Abubaker Shahid
BACKGROUND: Our objective in this study was to evaluate the role and benefits in terms of local toxicity and biochemical disease-free survival (bDFS) following escalated-dose conformal radiation therapy in prostate adenocarcinoma. METHODS: The study population was composed of 53 patients with histologically proven T1b-T4, NO, MO prostate adenocarcinoma, having any Gleason score with prostate-specific antigen (PSA) of less than 50 ng/mL at diagnosis, given escalated dose EBRT (74 Gy) during the period between January 2011 and December 2013, retrospectively and evaluated for a period of 2 years post-radiation...
September 14, 2017: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/28917587/early-or-late-radiotherapy-following-gross-or-subtotal-resection-for-atypical-meningiomas-clinical-outcomes-and-local-control
#9
Ammoren Dohm, Emory R McTyre, Michael D Chan, Claire Fan, Scott Isom, J Daniel Bourland, Ryan T Mott, Christina K Cramer, Stephen B Tatter, Adrian W Laxton
We report a single institution series of surgery followed by either early adjuvant or late radiotherapy for atypical meningiomas (AM). AM patients, by WHO 2007 definition, underwent subtotal resection (STR) or gross total resection (GTR). Sixty-three of a total 115 patients then received fractionated or stereotactic radiation treatment, early adjuvant radiotherapy (≤4months after surgery) or late radiotherapy (at the time of recurrence). Kaplan Meier method was used for survival analysis with competing risk analysis used to assess local failure...
September 13, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28917256/postoperative-stereotactic-body-radiotherapy-for-spinal-metastases
#10
Majed Alghamdi, Chia-Lin Tseng, Sten Myrehaug, Pejman Maralani, Chris Heyn, Hany Soliman, Young Lee, Mark Ruschin, Leodante Da Costa, Victor Yang, Mikki Campbell, Arjun Sahgal
Spine is a common site of metastases in cancer patients. Spine surgery is indicated for select patients, typically those with mechanical instability and/or malignant epidural spinal cord (or cauda equina) compression. Although post-operative conventional palliative external beam radiation therapy has been the standard of care, technical improvements in radiation planning and image-guided radiotherapy have allowed for the application of stereotactic body radiotherapy (SBRT) to the spine. Spine SBRT is intended to ablate residual tumor and optimize local control by delivering several fold greater biologically effective doses...
September 2017: Chinese Clinical Oncology
https://www.readbyqxmd.com/read/28917251/advances-in-external-beam-stereotactic-body-radiotherapy-principle-concerns-in-implementing-a-liver-radiation-program
#11
Stewart Gaede, Michael I Lock
Despite significant advances in diagnosis, surgery and medical oncology, patients with primary and secondary liver cancer have some of the worst prognoses in oncology. In addition, the incidence of liver cancer is expected to increase. For this reason, centres are seeking new treatments and establishing specialized multidisciplinary teams. This article will focus on the evidence and practical data to assist in setting up or improving current process pathways, to provide an efficient and safe radiotherapy program for liver...
September 2017: Chinese Clinical Oncology
https://www.readbyqxmd.com/read/28917248/stereotactic-body-radiation-therapy-for-prostate-cancer-a-review
#12
Waqar Haque, E Brian Butler, Bin S Teh
Prostate cancer can be managed with external beam radiation therapy, delivered with either protons or photons, brachytherapy, surgery, or active surveillance. Advances in imaging and radiation therapy delivery have allowed treatment of prostate cancer using ultra-hypofractionated radiation therapy with a high dose per fraction using a technique called stereotactic body radiation therapy (SBRT). While no randomized trials have compared the efficacy of SBRT to conventionally fractionated radiation therapy (CFRT), numerous prospective trials and retrospective reviews have demonstrated the safety and efficacy of SBRT for localized prostate cancer, used either definitively or as a boost along with CFRT...
September 2017: Chinese Clinical Oncology
https://www.readbyqxmd.com/read/28914611/deep-convolutional-neural-network-with-transfer-learning-for-rectum-toxicity-prediction-in-cervical-cancer-radiotherapy-a-feasibility-study
#13
Xin Zhen, Jiawei Chen, Zichun Zhong, Brian Andrew Hrycushko, Linghong Zhou, Steve B Jiang, Kevin Albuquerque, Xuejun Gu
Better understanding of the dose-toxicity relationship is critical for safe dose escalation to improve local control in late-stage cervical cancer radiotherapy. In this study, we introduced a convolutional neural network (CNN) model to analyze rectum dose distribution and predict rectum toxicity. Forty-two cervical cancer patients treated with combined external beam radiotherapy (EBRT) and brachytherapy (BT) were retrospectively collected, including twelve toxicity patients and thirty non-toxicity patients...
September 15, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28905446/impact-of-five-tiered-gleason-grade-groups-on-prognostic-prediction-in-clinical-stage-t3-prostate-cancer-undergoing-high-dose-rate-brachytherapy
#14
Hideyasu Tsumura, Hiromichi Ishiyama, Ken-Ichi Tabata, Hiroki Katsumata, Momoko Kobayashi, Masaomi Ikeda, Shinji Kurosaka, Tetsuo Fujita, Masashi Kitano, Takefumi Satoh, Nobuyuki Yanagisawa, Kazushige Hayakawa, Masatsugu Iwamura
BACKGROUND: We evaluated a five-tiered Gleason grade groups arising from the 2014 International Society of Urological Pathology consensus conference on prognostic prediction in clinical stage T3a (extracapsular invasion) and T3b (seminal vesicle involvement) prostate cancer undergoing high-dose-rate brachytherapy (HDR-BT). METHODS: From November 2003 to December 2012, 283 patients with stage T3 prostate cancer received HDR-BT and external beam radiation therapy (EBRT) with long-term androgen deprivation therapy (ADT)...
September 14, 2017: Prostate
https://www.readbyqxmd.com/read/28902347/measuring-the-response-of-human-head-and-neck-squamous-cell-carcinoma-to-irradiation-in-a-microfluidic-model-allowing-customized-therapy
#15
Ramsah Cheah, Rishi Srivastava, Nicholas D Stafford, Andrew W Beavis, Victoria Green, John Greenman
Radiotherapy is the standard treatment for head and neck squamous cell carcinoma (HNSCC), however, radioresistance remains a major clinical problem despite significant improvements in treatment protocols. Therapeutic outcome could potentially be improved if a patient's tumour response to irradiation could be predicted ex vivo before clinical application. The present study employed a bespoke microfluidic device to maintain HNSCC tissue whilst subjecting it to external beam irradiation and measured the responses using a panel of cell death and proliferation markers...
October 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28900057/exploring-the-idea-of-a-new-form-of-external-beam-therapy
#16
Thomas Welch
No abstract text is available yet for this article.
July 2017: Radiologic Technology
https://www.readbyqxmd.com/read/28895160/oncologic-outcomes-of-ktp-laser-surgery-versus-radiation-for-t1-glottic-carcinoma
#17
Jamal Ahmed, Ahmed Sherif Gabr Ibrahim, Laura M Freedman, David E Rosow
OBJECTIVES/HYPOTHESIS: To characterize outcomes for patients who underwent transoral microsurgery with potassium titanyl phosphate (KTP) laser resection of early glottic cancers and to compare outcomes with patients who received external beam radiation therapy. STUDY DESIGN: Retrospective cohort study. METHODS: The history of patients with T1 glottic carcinoma treated with curative primary radiation or transoral KTP laser resection was reviewed...
September 12, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28895107/external-beam-radiation-therapy-for-resectable-soft-tissue-sarcoma-a-systematic-review-and-meta-analysis
#18
Markus Albertsmeier, Alexandra Rauch, Falk Roeder, Sandro Hasenhütl, Sebastian Pratschke, Michaela Kirschneck, Alessandro Gronchi, Nina L Jebsen, Philippe A Cassier, Paul Sargos, Claus Belka, Lars H Lindner, Jens Werner, Martin K Angele
PURPOSE: The aim of this study was to evaluate the role of preoperative and postoperative external beam radiation therapy (EBRT) in the treatment of resectable soft tissue sarcomas (STSs) of different tumor locations. METHODS: A systematic literature search was performed to identify studies investigating the effects of EBRT (versus no EBRT) on local recurrence (LR) and overall survival (OS) or comparing different EBRT sequences. Random effects meta-analyses were calculated and presented as cumulative odds ratios (ORs)...
September 11, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28892908/cytological-diagnosis-of-an-uncommon-high-grade-malignant-thyroid-tumour-a-case-report
#19
Ruchi Nagpal, Manju Kaushal, Sawan Kumar
Anaplastic Thyroid Carcinoma (ATC) is a relatively uncommon highly malignant tumour originating from the follicular cells of thyroid gland having poor prognosis. It accounts for 2% to 5% of all thyroid carcinomas and patients typically present with a rapidly growing anterior neck mass with aggressive symptoms. A 53-year-old male presented with diffuse neck swelling measuring 8x6 cm and right cervical lymph node measuring 2x2 cm since one month which was associated with dyspepsia and dyspnoea. Ultrasound and Contrast Enhanced Computed Tomography (CECT) neck revealed enlarged right lobe of thyroid and multiple enlarged cervical lymph nodes with soft tissue density nodules in bilateral lungs...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28888417/american-brachytherapy-society-recurrent-carcinoma-of-the-endometrium-task-force-patterns-of-care-and-review-of-the-literature
#20
Mitchell Kamrava, Sushil Beriwal, Beth Erickson, David Gaffney, Anuja Jhingran, Ann Klopp, Sang June Park, Akila Viswanathan, Catheryn Yashar, Lilie Lin
PURPOSE: The purpose of this American Brachytherapy Society task force is to present a literature review and patterns of care by a panel of experts for the management of vaginal recurrence of endometrial cancer. METHODS AND MATERIALS: In 2016, the American Brachytherapy Society Board selected a panel of experts in gynecologic brachytherapy to update our current state of knowledge for managing vaginal recurrence of endometrial cancer. Practice patterns were evaluated via an online survey and clinical updates occurred through a combination of literature review and clinical experience and/or expertise...
September 6, 2017: Brachytherapy
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