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Brachytherapy

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https://www.readbyqxmd.com/read/28104297/brachytherapy-for-the-palliation-of-dysphagia-owing-to-esophageal-cancer-a-systematic-review-and-meta-analysis-of-prospective-studies
#1
Lorenzo Fuccio, Daniele Mandolesi, Andrea Farioli, Cesare Hassan, Leonardo Frazzoni, Alessandra Guido, Nicola de Bortoli, Savino Cilla, Chiara Pierantoni, Francesco Saverio Violante, Franco Bazzoli, Alessandro Repici, Alessio Giuseppe Morganti
BACKGROUND: The management of dysphagia owing to esophageal cancer is challenging. Brachytherapy has been proposed as an alternative option to stent placement. We performed a systematic review to examine its efficacy and safety in the resolution of dysphagia. METHODS: Prospective studies recruiting at least 20 patients with malignant dysphagia and published up to April 2016 were eligible. The dysphagia-free survival (DFS) and adverse event rates were pooled by means of a random effect model...
January 16, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28103826/tracking-the-origin-of-simultaneous-endometrial-and-ovarian-cancer-by-next-generation-sequencing-a-case-report
#2
Nadejda Valtcheva, Franziska M Lang, Aurelia Noske, Eleftherios P Samartzis, Anna-Maria Schmidt, Elisa Bellini, Daniel Fink, Holger Moch, Markus Rechsteiner, Konstantin J Dedes, Peter J Wild
BACKGROUND: Endometrioid adenocarcinoma of the uterus and ovarian endometrioid carcinoma share many morphological and molecular features. Differentiation between simultaneous primary carcinomas and ovarian metastases of an endometrial cancer may be very challenging but is essential for prognostic and therapeutic considerations. CASE PRESENTATION: In the present case study of a 33 year-old patient we used targeted amplicon next-generation re-sequencing for clarifying the origin of synchronous endometrioid cancer of the corpus uteri and the left ovary...
January 19, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28102953/air-kerma-strength-determination-of-an-hdr-192-ir-source-including-a-geometric-sensitivity-study-of-the-seven-distance-method
#3
Blake R Smith, John A Micka, Manik Aima, Larry A DeWerd, Wesley S Culberson
PURPOSE: To perform an in-air air-kerma strength (SK) calibration of the Bebig model Ir2.A85-2 192Ir high-dose rate (HDR) brachytherapy source manufactured by Mallinckrodt Medical (Westerduinweg, Germany) with the NIST-traceable seven-distance technique established by the University of Wisconsin. A comparison was made between the reference air-kerma rate (RAKR) reported on a certificate from the Physikalisch-Technische Bundesanstalt (Berlin, Germany) (PTB) primary laboratory and the SK determined at the University of Wisconsin Madison Radiation Research Center (UWMRRC)...
January 2017: Medical Physics
https://www.readbyqxmd.com/read/28102436/-urethral-stricture-rate-after-prostate-cancer-radiotherapy-five-year-data-of-a-certified-prostate-cancer-center
#4
J Kranz, G Maurer, U Maurer, O Deserno, S Schulte, J Steffens
BACKGROUND: A urethral stricture is a scar of the urethral epithelium which can cause obstructive voiding dysfunction with consequential damage of the upper urinary tract. Almost 45% of all strictures are iatrogenic; they develop in 2-9% of patients after radical prostatectomy, but can also occur after prostate cancer radiotherapy. This study provides 5‑year data of a certified prostate cancer center (PKZ) in terms of urethral strictures. MATERIALS AND METHODS: Between 01/2008 and 12/2012 a total of 519 men were irradiated for prostate cancer (LDR and HDR brachytherapy as well as external beam radiation)...
January 19, 2017: Der Urologe. Ausg. A
https://www.readbyqxmd.com/read/28101168/ct-guided-125-i-seed-implantation-for-inoperable-retroperitoneal-sarcoma-a-technique-for-delivery-of-local-tumor-brachytherapy
#5
Biao Yang, Wen-Hao Guo, Ting Lan, Fang Yuan, Guan-Jian Liu, Rui-Yu Zan, Xin You, Qiao-Yue Tan, Zheng-Yin Liao
Radical surgery is currently the first treatment of choice for retroperitoneal soft tissue sarcoma (RSTS). However, the prognosis of RSTS remains poor due to ineffective local control and a high incidence of metastasis after surgical resection. Brachytherapy has been shown to safely provide local radiotherapy for numerous types of cancer when used alone or in combination with surgical resection, but has not been well characterized in the management of RSTS. The aim of this study was to evaluate CT-guided 125I seed implantation for local control and pain relief in the treatment of inoperable RSTS...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28095994/outcome-of-early-stage-cervical-cancer-patients-treated-according-to-a-radiosurgical-approach-clinical-results-and-prognostic-factors
#6
Escande Alexandre, Gouy Sebastien, Mazeron Renaud, Bentivegna Enrica, Bacorro Warren, Maroun Pierre, Schernberg Antoine, Oberlander Anne-Sophie, Dumas Isabelle, Genestie Catherine, Deutsch Eric, Morice Philippe, Haie-Meder Christine, Chargari Cyrus
OBJECTIVE: To report clinical results of a multimodal strategy based on preoperative brachytherapy followed with surgery in early stage cervical cancer. MATERIALS/METHODS: The outcome of consecutive patients receiving brachytherapy in our Institution for an early stage IB1-IIA1 invasive cervical cancer with risk factors (lymphovascular embols and/or tumor >2cm) between 2000 and 2013 was analyzed. The treatment consisted of preoperative low dose or pulse dose-rate utero-vaginal brachytherapy followed, 6-8weeks later, by a radical hysterectomy/bilateral salpingo-oophorectomy plus pelvic±para-aortic lymph node dissection...
January 14, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28094790/californium-252-neutron-intracavity-brachytherapy-alone-for-t1n0-low-lying-rectal-adenocarcinoma-a-definitive-anal-sphincter-preserving-radiotherapy
#7
Yanli Xiong, Jinlu Shan, Jia Liu, Kewei Zhao, Shu Chen, Wenjing Xu, Qian Zhou, Mei Yang, Xin Lei
This study evaluated the 4-year results of 32 patients with T1N0 low-lying rectal adenocarcinoma treated solely with californium-252 (Cf-252) neutron intracavity brachytherapy (ICBT). Patients were solicited into the study from January 2008 to June 2011. All the patients had refused surgery or surgery was contraindicated. The patients were treated with Cf-252 neutron ICBT using a novel 3.5-cm diameter off-axis 4-channel intrarectal applicator designed by the authors. The dose reference point was defined on the mucosa surface, with a total dose of 55-62 Gy-eq/4 f (13-16 Gy-eq/f/wk)...
January 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28094198/late-side-effects-and-cosmetic-results-of-accelerated-partial-breast-irradiation-with-interstitial-brachytherapy-versus-whole-breast-irradiation-after-breast-conserving-surgery-for-low-risk-invasive-and-in-situ-carcinoma-of-the-female-breast-5-year-results
#8
Csaba Polgár, Oliver J Ott, Guido Hildebrandt, Daniela Kauer-Dorner, Hellen Knauerhase, Tibor Major, Jaroslaw Lyczek, José Luis Guinot, Jürgen Dunst, Cristina Gutierrez Miguelez, Pavel Slampa, Michael Allgäuer, Kristina Lössl, Bülent Polat, György Kovács, Arnt-René Fischedick, Rainer Fietkau, Alexandra Resch, Anna Kulik, Leo Arribas, Peter Niehoff, Ferran Guedea, Annika Schlamann, Richard Pötter, Christine Gall, Wolfgang Uter, Vratislav Strnad
BACKGROUND: We previously confirmed the non-inferiority of accelerated partial breast irradiation (APBI) with interstitial brachytherapy in terms of local control and overall survival compared with whole-breast irradiation for patients with early-stage breast cancer who underwent breast-conserving surgery in a phase 3 randomised trial. Here, we present the 5-year late side-effects and cosmetic results of the trial. METHODS: We did this randomised, controlled, phase 3 trial at 16 centres in seven European countries...
January 13, 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28090640/in-the-era-of-igrt-and-small-and-focal-field-external-beam-radiotherapy-brachytherapy-is-a-dying-modality
#9
E Ishmael Parsai, Zoubir Ouhib, Colin G Orton
No abstract text is available yet for this article.
November 29, 2016: Medical Physics
https://www.readbyqxmd.com/read/28076848/endovascular-brachytherapy-combined-with-portal-vein-stenting-and-transarterial-chemoembolization-improves-overall-survival-of-hepatocellular-carcinoma-patients-with-main-portal-vein-tumor-thrombus
#10
Tian-Zhu Yu, Wen Zhang, Qing-Xin Liu, Wen-Hui Li, Jing-Qin Ma, Zi-Han Zhang, Min-Jie Yang, Jian-Hua Wang, Bing Chen, Shao-Chong Zeng, Jian-Jun Luo, Ling-Xiao Liu, Zhi-Ping Yan
Hepatocellular carcinoma (HCC) patients with main portal vein tumor thrombus have a median survival time of only about 4 months. We therefore compared the safety and efficacy of endovascular brachytherapy (EVBT) and sequential three-dimensional conformal radiotherapy (3-DCRT). From a cohort of 176 patients, we treated 123 with EVBT using iodine-125 seed strands (group A) and the remaining 53 with sequential 3-DCRT (group B). Overall survival, progression free survival and stent patency characteristics were compared between the two groups...
January 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28075511/postoperative-iodine-125-interstitial-brachytherapy-for-the-early-stages-of-minor-salivary-gland-carcinomas-of-the-lip-and-buccal-mucosa-with-positive-or-close-margins
#11
Wen-Jie Wu, Xiao Shao, Ming-Wei Huang, Xiao-Ming Lv, Xin-Na Zhang, Jian-Guo Zhang
BACKGROUND: The purpose of this study was to present our preliminary exploration of safety and efficacy of postoperative low-dose-rate brachytherapy for the early clinical stages of minor salivary gland carcinomas of the lip and buccal mucosa. METHODS: Twenty-seven patients with the early stages of minor salivary gland carcinomas of the lip and buccal mucosa received postoperative (125) I seed interstitial brachytherapy from March 2005 to May 2015. Actuarial likelihood estimates for local control, overall survival, and disease-free survival were calculated by Kaplan-Meier method...
January 11, 2017: Head & Neck
https://www.readbyqxmd.com/read/28070767/strut-adjusted-volume-implant-savi-brachytherapy-based-accelerated-partial-breast-irradiation-apbi-in-african-american-women
#12
Amir Isbell, Jacquelyn Dunmore-Griffith, Olubunmi Abayomi
PURPOSE: To examine the clinical outcomes of postmenopausal African American (AA) women treated with strut-adjusted volume implant brachytherapy-based accelerated partial breast irradiation for early-stage node-negative breast cancer. METHODS: From January 2011 through April 2015, a total of 50 AA patients, meeting criteria to receive APBI as defined by the National Surgical Adjuvant Breast and Bowel Project B-39 (NASBP B-39), completed treatment with the SAVI breast brachytherapy device at Howard University Hospital...
January 9, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28063817/pulse-sequence-considerations-for-simulation-and-postimplant-dosimetry-of-prostate-brachytherapy
#13
Jingfei Ma, Marinus A Moerland, Aradhana M Venkatesan, Tharakeswara K Bathala, Rajat J Kudchadker, Kristy K Brock, Steven J Frank
PURPOSE: The purpose of this work is to present a brief review of MRI physics principles pertinent to prostate brachytherapy, and a summary of our experience in optimizing protocols for prostate brachytherapy applications. METHODS AND MATERIALS: We summarized essential MR imaging characteristics and their interplays that need to be considered for prostate brachytherapy applications. These include spatial resolution, signal-to-noise ratio, image contrast, artifacts, geometric distortion, specific absorption rate, and total scan time...
January 4, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28059930/acr-appropriateness-criteria-locally-advanced-high-risk-prostate-cancer
#14
Patrick W McLaughlin, Adam L Liss, Paul L Nguyen, Dean G Assimos, Anthony V D'Amico, Alexander R Gottschalk, Gary S Gustafson, Sameer R Keole, Stanley L Liauw, Shane Lloyd, Benjamin Movsas, Bradley R Prestidge, Timothy N Showalter, Al V Taira, Neha Vapiwala, Brian J Davis
PURPOSE: To present the most updated American College of Radiology consensus guidelines formed from an expert panel on treatment of locally advanced, high-risk prostate cancer METHODS:: The American College of Radiology Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are reviewed annually by a multidisciplinary expert panel. The guideline development and revision include an extensive analysis of current medical literature from peer-reviewed journals and the application of well-established methodologies (RAND/UCLA Appropriateness Method and Grading of Recommendations Assessment, Development, and Evaluation or GRADE) to rate the appropriateness of imaging and treatment procedures for specific clinical scenarios...
January 4, 2017: American Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28056627/needle-like-instruments-for-steering-through-solid-organs-a-review-of-the-scientific-and-patent-literature
#15
Marta Scali, Tim P Pusch, Paul Breedveld, Dimitra Dodou
High accuracy and precision in reaching target locations inside the human body is necessary for the success of percutaneous procedures, such as tissue sample removal (biopsy), brachytherapy, and localized drug delivery. Flexible steerable needles may allow the surgeon to reach targets deep inside solid organs while avoiding sensitive structures (e.g. blood vessels). This article provides a systematic classification of possible mechanical solutions for three-dimensional steering through solid organs. A scientific and patent literature search of steerable instrument designs was conducted using Scopus and Web of Science Derwent Innovations Index patent database, respectively...
December 1, 2016: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/28056288/-clinical-application-of-125-i-radioactive-seeds-brachytherapy-in-the-treatment-of-the-pediatric-soft-tissue-sarcoma-in-head-and-neck
#16
D Zhao, L Zheng, X M Lü, M W Huang, Y Shi, X L Ma, J Yan, J G Zhang
Objective: To investigate the clinical application and preliminary results of (125)I radioactive seeds brachytherapy in the comprehensive treatment of the pediatric soft tissue sarcoma in head and neck. Methods: A total of 24 pediatric patients with soft tissue sarcoma in head and neck were treated at Peking University School of Stomatology from April 2012 to July 2015. The data was collected and analyzed through statistical methods, which included the pathological type, gender, age, tumor location, volume, treatment and the clinical results after the application of (125)I radioactive seeds brachytherapy...
January 3, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28054530/does-fall-in-serum-glutathione-predict-the-long-term-outcome-to-concurrent-chemoradiation-for-cervical-cancer-patients
#17
Manjunath Gudibande Narasappa, Janaki Manur Gururajachar, Vasudha Kambam Chokkanna, Mohankumar Somashekar
BACKGROUND: Wide variations are seen in clinical practice with respect to response to concurrent chemo radiation among cervical cancer patients. Fall in serum glutathione (GSH) level directly correlates with early response to treatment. Whether this early response translates to a better long term outcome is the subject of this prospective study. MATERIALS AND METHODS: Thirty eight women with cervical cancer were treated with concurrent chemo radiation followed by brachytherapy...
July 2016: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28049550/gec-estro-acrop-recommendations-for-performing-bladder-sparing-treatment-with-brachytherapy-for-muscle-invasive-bladder-carcinoma
#18
Bradley R Pieters, Elzbieta van der Steen-Banasik, Geert A Smits, Marisol De Brabandere, Alberto Bossi, Erik Van Limbergen
The standard treatment for muscle-invasive bladder cancer (MIBC) is a radical cystectomy with pelvic lymph node dissection with or without neoadjuvant chemotherapy. In selected cases a bladder sparing approach is possible, for example a limited surgical excision combined with external beam radiotherapy and brachytherapy. To perform brachytherapy flexible catheters have to be implanted in the bladder wall. The implantation is done either by the open retropubic approach or the endoscopic surgical approach. The largest experience for brachytherapy is with low-dose rate and pulsed-dose rate, although some short-term experience with high-dose rate is also reported...
December 31, 2016: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28048976/repeat-episcleral-plaque-brachytherapy-clinical-outcomes-in-patients-treated-for-locally-recurrent-posterior-uveal-melanoma
#19
Benjamin King, Vanessa M Morales-Tirado, Henry G Wynn, Brad T Gao, Matthew T Ballo, Matthew W Wilson
PURPOSE: Report the outcomes of survival, local control, visual acuity and eye retention in patients treated with repeat episcleral plaque brachytherapy (EPBT) for locally recurrent posterior uveal melanoma (PUM). DESIGN: Retrospective, interventional case series METHODS: Setting: Institutional Patient Population: 1201 patients that underwent Iodine-125 (I-125) EPBT as primary treatment for PUM between 1985 and 2015 Inclusion criteria: Development of locally recurrent disease and retreatment with I-125 EPBT Observation Procedures: Clinical records review Main Outcome Measures: Visual acuity, Kaplan-Meier estimates of survival, local control, metastasis and loss of the eye over the duration of follow up RESULTS: Twenty-seven patients (13 men) met our inclusion criteria...
December 31, 2016: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28048930/su-f-t-54-determination-of-the-aapm-tg-43-brachytherapy-dosimetry-parameters-for-a-new-titanium-encapsulated-yb-169-source-by-monte-carlo-calculations
#20
F Reynoso, J Munro, S Cho
PURPOSE: To determine the AAPM TG-43 brachytherapy dosimetry parameters of a new titanium-encapsulated Yb-169 source designed to maximize the dose enhancement during gold nanoparticle-aided radiation therapy (GNRT). METHODS: An existing Monte Carlo (MC) model of the titanium-encapsulated Yb-169 source, which was described in the current investigators' published MC optimization study, was modified based on the source manufacturer's detailed specifications, resulting in an accurate model of the titanium-encapsulated Yb-169 source that was actually manufactured...
June 2016: Medical Physics
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