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Raksha Rao, Renelle Pointdujour-Lim, Arupa Ganguly, Carol L Shields
PURPOSE: To report a case of unilateral multifocal melanoma in a patient with germ line BRCA-associated protein 1 mutation. METHODS: Case report. RESULTS: A 67-year-old white woman with a family history of lung and liver cancers developed blurred visual acuity of 20/30 in the left eye. She was discovered to have two independent pigmented choroidal melanomas in the macula and superotemporally, both demonstrating overlying subretinal fluid and orange pigment...
October 4, 2016: Retinal Cases & Brief Reports
Tejinder Kataria, Deepak Gupta, Shikha Goyal, Shyam Singh Bisht, Ravi Chaudhary, Kushal Narang, Susovan Banerjee, Trinanjan Basu, Ashu Abhishek, Sasikumar Sambasivam, Nisha T Vishnu
Stereotactic body radiotherapy (SBRT) is being increasingly utilized in the treatment of prostate cancer. With the advent of high precision radiosurgery systems, it is possible to obtain dose distributions akin to High Dose Rate (HDR) brachytherapy with SBRT. However, urethral toxicity has a significant impact on the quality of life in prostate cancer patients. Contouring the male urethra on a computed tomography scan is difficult in the absence of an indwelling catheter. In this pictorial essay, we have used the magnetic resonance imaging obtained for radiotherapy planning to aid in delineation of the male urethra and have attempted to define guidelines for the same...
October 17, 2016: British Journal of Radiology
S Ajamil Rodanés, C García-Álvarez, M A Saornil Alvarez, F López-Lara, J M Frutos Baraja, M Quiñones
CLINICAL CASE: A 35-year-old male with unilateral ocular hypertension in the right eye (RE). Anterior segment examination of the RE showed a melanotic lesion. Intraocular pressure (IOP) was 40mmHg in RE. Gonioscopy revealed extension into the anterior chamber angle. Excisional biopsy was performed and consistent with iris melanoma and secondary melanomalytic glaucoma. Brachytherapy was performed as adjuvant therapy. DISCUSSION: In patients presenting with unilateral glaucoma and increased pigmentation in the trabecular meshwork, it is crucial to perform imaging studies...
October 13, 2016: Archivos de la Sociedad Española de Oftalmología
Maria Isabel Martínez-Fernández, Juan Alcalde, Mauricio Cambeiro, German Valtueña Peydró, Rafael Martínez-Monge
BACKGROUND AND PURPOSE: This study was undertaken to determine the feasibility of salvage surgery and PHDRB in patients with previously irradiated, recurrent head and neck cancer or second primary tumors arising in a previously irradiated field. METHODS AND MATERIALS: Sixty-three patients were treated with surgical resection and PHDRB. The PHDRB dose was 4Gy b.i.d.×8 (32Gy) for R0 resections and 4Gy b.i.d.×10 (40Gy) for R1 resections, respectively. Further external beam radiotherapy or chemotherapy was not given...
October 13, 2016: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
Daniel Sagalovich, Michael Leapman, John Sfakianos, Simon Hall, Richard Stock, Nelson Stone
PURPOSE: We aimed to evaluate the impact of timing of androgen deprivation therapy (ADT) on survival in a cohort of patients with biochemical recurrence (BCR) after brachytherapy treatment for prostate cancer. METHODS AND MATERIALS: We retrospectively identified 2366 men receiving permanent prostate brachytherapy with or without external beam radiation therapy. Patients experiencing BCR were stratified by receipt of immediate or delayed (≥3 months) ADT and prostate-specific antigen (PSA) failure threshold of 10 ng/mL...
October 12, 2016: Brachytherapy
Eric Vigneault, Khaly Mbodji, Louis-Gabriel Racine, Eric Chevrette, Marie-Claude Lavallée, André-Guy Martin, Philippe Després, Luc Beaulieu
PURPOSE: To evaluate the long-term outcomes of image-guided high-dose-rate (HDR) brachytherapy boost to the dominant intraprostatic lesion (DIL) using multiparametric magnetic resonance imaging (MRI), including spectroscopy (MRI/magnetic resonance spectroscopy [MRS]). METHODS AND MATERIALS: Between December 2009 and March 2011, 20 patients with intermediate-risk prostate cancer underwent multiparametric MRI/MRS protocol before treatment. All patients were treated with an external beam radiotherapy dose of 40 Gy, combined with an HDR brachytherapy boost of 15 Gy...
October 12, 2016: Brachytherapy
Suresh de Silva, Simon Mackie, Peter Aslan, David Cade, Warick Delprado
BACKGROUND: Intra-arterial brachytherapy with yttrium-90 ((90)Y) resin microspheres (radioembolization) is a procedure to selectively deliver high-dose radiation to tumors. The purpose of this research was to compare the radioembolic effect of (90)Y-radioembolization versus the embolic effect of bland microspheres in the porcine kidney model. METHODS: In each of six pigs, ~25-33 % of the kidney volume was embolized with (90)Y resin microspheres and an equivalent number of bland microspheres in the contralateral kidney...
October 14, 2016: Cardiovascular and Interventional Radiology
Marina Marinkovic, Nanda Horeweg, Marta Fiocco, Femke P Peters, Linda W Sommers, Mirjam S Laman, Jaco C Bleeker, Martijn Ketelaars, Gre P M Luyten, Carien L Creutzberg
PURPOSE: To evaluate efficacy and toxicity of two different protocols for eye-conserving treatment of patients with small to intermediate-sized choroidal melanomas; the current ruthenium-106 (Ru106) brachytherapy protocol and the preceding protocol of Ru106-brachytherapy with transpupillary thermotherapy (Ru106/TTT). METHODS AND MATERIALS: Long-term outcomes of 449 consecutive patients, of whom 196 (43.6%) treated using Ru106/TTT and 253 (56.3%) treated using Ru106, were compared in terms of local control, survival, eye preservation and visual outcome...
October 11, 2016: European Journal of Cancer
Al V Taira, Gregory S Merrick, Robert W Galbreath, Wayne M Butler, Edward Adamovich
OBJECTIVES: To evaluate whether the use of androgen deprivation therapy (ADT) in prostate brachytherapy patients impacts overall mortality (OM) in patients with lower pretreatment serum testosterone levels compared with those with normal or high baseline serum testosterone. MATERIALS AND METHODS: From October 2001 to May 2014, 1916 patients underwent brachytherapy and had a pretreatment serum testosterone. Baseline serum testosterone values were collected prospectively before initiation of therapy...
October 12, 2016: American Journal of Clinical Oncology
Gustavo Kertzscher, Sam Beddar
We tested the potential of ruby inorganic scintillation detectors (ISDs) for use in brachytherapy and investigated various unwanted luminescence properties that may compromise their accuracy. The ISDs were composed of a ruby crystal coupled to a poly(methyl methacrylate) fiber-optic cable and a charge-coupled device camera. The ISD also included a long-pass filter that was sandwiched between the ruby crystal and the fiber-optic cable. The long-pass filter prevented the Cerenkov and fluorescence background light (stem signal) induced in the fiber-optic cable from striking the ruby crystal, which generates unwanted photoluminescence rather than the desired radioluminescence...
October 14, 2016: Physics in Medicine and Biology
Vicent Giménez-Alventosa, Javier Vijande, Facundo Ballester, Jose Perez-Calatayud
The goal of this study is to evaluate the ambient dose due to the transit of high dose rate (HDR) (60)Co sources along a transfer tube as compared to (192)Ir ones in a realistic clinical scenario. This goal is accomplished by evaluating air-kerma differences with Monte Carlo calculations using PENELOPE2011. Scatter from both the afterloader and the patient was not taken into account. Two sources, mHDR-v2 and Flexisource Co-60, (Elekta Brachytherapy, Veenendaal, the Netherlands) have been considered. These sources were simulated within a standard transfer tube located in an infinite air phantom...
October 14, 2016: Journal of Radiological Protection: Official Journal of the Society for Radiological Protection
O Kalita, K Cwiertka, D Vrána, M Vaverka, L Tučková, M Megová
BACKGROUND: Malignant peripheral nerve sheath tumor schwannoma (MPNST), also known as malignant schwannoma, is a very rare tumor accounting for only 2% of all sarcomas. The prognosis is relatively poor, with a 5-year survival rate of 46-69%. The treatment of MPNST has not been standardized yet. Mainstay treatment is radical resection. Oncological adjuvant or neoadjuvant treatment has equivocal indications with unclear effects. CASE: The case report presents a 55-year-old patient who showed resistance in the medial-ventral area of the left lower limb...
2016: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
(no author information available yet)
No abstract text is available yet for this article.
June 2016: Clinical Privilege White Paper
(no author information available yet)
No abstract text is available yet for this article.
April 2016: Clinical Privilege White Paper
Yeon-Joo Kim, Joo-Young Kim, Youngkyong Kim, Young Kyung Lim, Jonghwi Jeong, Chiyoung Jeong, Meyoung Kim, Myong Cheol Lim, Sang-Soo Seo, Sang-Yoon Park
OBJECTIVE: The purpose of this work was to identify prognostic factors for survival after magnetic resonance image (MRI)-guided brachytherapy combined with external beam radiotherapy for cervical cancer. MATERIAL AND METHODS: External beam radiotherapy of 45-50.4 Gy was delivered by either three-dimensional conformal radiotherapy or helical tomotherapy. Patients also received high-dose-rate MRI-guided brachytherapy of 5 Gy in 6 fractions. RESULTS: We analyzed 128 patients with International Federation of Gynecology and Obstetrics stage IB-IVB cervical cancer who underwent MRI-guided brachytherapy...
October 12, 2016: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
L Sim
The purpose of this study was to evaluate if MED610 3D printed material can be used as a surrogate for acrylic in the manufacturing of a replacement insert used in an eye plaque brachytherapy applicator. Measurement of the dose distributions from a standard acrylic insert were compared with dose obtained from MED610 3D printed replica using GafChromic(®) EBT3 films. The study used a 15 mm Radiation Oncology Physics and Engineering Services, Australia (ROPES) type eye plaque applicator loaded with I-125 (model 6711) seeds...
October 11, 2016: Australasian Physical & Engineering Sciences in Medicine
Romuald Zdrojowy, Janusz Dembowski, Bartosz Małkiewicz, Krzysztof Tupikowski, Wojciech Krajewski
INTRODUCTION: Prostate cancer is the most frequent cancer among males in Europe and a leading cause of cancer deaths, with similar proportion in other developed countries. For more than twenty years, external-beam radiation therapy, alongside with radical prostatectomy, has been used as a primary radical therapeutic approach for localized prostate cancer. Yet, EBRT failures relate to 22-69% following curative radiotherapy (± androgen deprivation therapy). Additionally, a proportion of these men will have a biopsy-proven local recurrence...
2016: Central European Journal of Urology
L Steentjes, S Siesling, F J Drummond, J G van Manen, L Sharp, A Gavin
We identified patient and disease characteristics associated with (1) "current" physical side-effects of any severity; and (2) "severe" physical side-effects "ever" experienced by 3,348 (54%) prostate cancer (PCa) survivors in Ireland diagnosed 2-18 years previously. Postal questionnaires collected symptoms at diagnosis, post-biopsy complications, comorbidities, primary treatments and physical side-effects post-treatment (urinary incontinence, erectile dysfunction, libido loss, bowel problems, breast changes, hot flushes, and fatigue, "ever" and "current" at time of questionnaire completion)...
October 10, 2016: European Journal of Cancer Care
Jessica Schuster, Christopher Chipko, Michael Kasper, Sandra Sha, Douglas Ciuba, James Petrikas, Anand Kuruvilla, Ravichandra Sandrapaty, Coral Quiet, Cynthia Anderson, Rashmi Benda, David Wazer, Jaroslaw Hepel, Douglas Arthur
PURPOSE: To report updated feasibility and reproducibility results for high-dose-rate noninvasive breast brachytherapy (NIBB) for tumor bed boost with whole breast radiation therapy (WBRT) in the setting of expanded patient and treatment facility number. METHODS AND MATERIALS: Fifteen independent community-based and academic centers reported 518 early-stage breast cancer patients from July 2007 to February 2015 on a privacy-encrypted online data registry. All patients' treatment included lumpectomy followed by combination of WBRT and NIBB...
October 6, 2016: Brachytherapy
Linda P Cho, Matthias Manuel, Paul Catalano, Larissa Lee, Antonio L Damato, Robert A Cormack, Ivan Buzurovic, Mandar Bhagwat, Desmond O'Farrell, Phillip M Devlin, Akila N Viswanathan
OBJECTIVE: To determine prognostic factors for progression-free survival (PFS) and overall survival (OS) for stage I-II cervical-cancer patients treated using computed-tomography (CT)-planned high-dose-rate (HDR) intracavitary brachytherapy (BT). METHODS: A total of 150 patients were treated for Stage I-II cervical cancer using CT-planned BT between 4/2004 and 10/2014. Of these, 128 were eligible for inclusion. Kaplan-Meier local control (LC), pelvic control (PC), overall survival (OS), and PFS estimates were calculated...
October 6, 2016: Gynecologic Oncology
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