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Brachytherapy

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https://www.readbyqxmd.com/read/28807749/high-dose-rate-interstitial-brachytherapy-boost-in-inoperable-locally-advanced-tongue-carcinoma
#1
Miguel Angel Santos, Jose Luis Guinot, Maria Isabel Tortajada, Paula Santamaría, Valentin Campo, Laura Oliver, Marina Peña, Leoncio Arribas
PURPOSE: Locally advanced tongue carcinomas (LATCs) in inoperable lesions are managed with external beam radiation therapy (EBRT) and chemotherapy. In our institution, the boost to the gross tumor volume is delivered with high-dose-rate brachytherapy (HDR-BT) after EBRT. We review the outcome of these patients when HDR-BT is added as a boost. METHODS AND MATERIALS: From May 2000 to December 2014, a total of 24 patients with LATC, nonsurgical oral tongue, and base of tongue carcinomas were treated with EBRT and with interstitial plastic tubes for brachytherapy; median dose was 18-24 Gy in 6-8 fractions after 50-60 Gy of EBRT...
August 11, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28807748/dosimetric-analysis-and-preliminary-clinical-result-of-image-guided-brachytherapy-with-or-without-hybrid-technique-for-cervical-cancer-using-varisource-titanium-ring-applicator-with-siriraj-ring-cap
#2
Pittaya Dankulchai, Suphalerk Lohasammakul, Janjira Petsuksiri, Pitchayut Nakkrasae, Lalida Tuntipumiamorn, Chumpot Kakanaporn, Yaowalak Chansilpa
PURPOSE: Titanium ring cap applicator (VariSource) was applied in treating cervical cancer patients by using image-guided brachytherapy (IGBT). However, its sizes appeared to be relatively large for most of our patients. Thus, we have developed a specific applicator "Siriraj Ring Cap," which is slightly smaller and more suitable for our patients. This study was to evaluate effectiveness of this equipment. METHODS AND MATERIALS: Locally advanced cervical cancer patients were treated with external beam radiation therapy with or without concomitant chemotherapy...
August 11, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28807747/pretreatment-3t-multiparametric-mri-staging-predicts-for-biochemical-failure-in-high-risk-prostate-cancer-treated-with-combination-high-dose-rate-brachytherapy-and-external-beam-radiotherapy
#3
John V Hegde, D Jeffrey Demanes, Darlene Veruttipong, Jagdeep Raince, Sang-June Park, Steven S Raman, Nicholas G Nickols, Christopher R King, Amar U Kishan, Michael L Steinberg, Mitchell Kamrava
PURPOSE: To determine whether pretreatment 3T multiparametric MRI (mpMRI) staging impacts biochemical recurrence-free survival (BRFS) or distant metastasis-free survival (DMFS) for men with high-risk prostate cancer treated with combination high-dose-rate (HDR) brachytherapy and external beam radiation therapy (EBRT). MATERIALS AND METHODS: This institutional review board-approved retrospective study included a cohort of 37 men with high-risk prostate cancer treated with HDR brachytherapy and EBRT after 3T mpMRI...
August 11, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28802913/salvage-high-dose-rate-brachytherapy-and-external-beam-radiotherapy-for-isolated-vaginal-recurrences-of-endometrial-cancer-with-no-prior-adjuvant-therapy
#4
Christopher H Chapman, Kaveh Maghsoudi, Ramey D Littell, Lee-May Chen, I-Chow Hsu
PURPOSE: To evaluate clinical outcomes for isolated vaginal recurrence of endometrial cancer without adjuvant therapy treated with salvage external beam radiation therapy (EBRT) and high-dose-rate CT-based inverse-planned brachytherapy. METHODS AND MATERIALS: Thirty women were included in this retrospective study. Median time to first recurrence was 16.7 months, and median age at recurrence was 73 years. Initial grade was 1 or 2 in 19 patients (63%), and 2009 FIGO stage IA in 19 patients...
August 9, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28801116/comparative-results-of-three-short-brachytherapy-schedules-as-exclusive-treatment-in-postoperative-endometrial-carcinoma
#5
Ángeles Rovirosa, Antonio Herreros, Cristina Camacho, Carlos Ascaso, Joan Sánchez, Stepphania Cortés, Sebastià Sabater, Jordi Solà, Aureli Torné, Meritxell Arenas
PURPOSE: To compare vaginal control and treatment toxicity of three different high-dose-rate brachytherapy schedules as exclusive treatment in postoperative endometrial carcinoma. METHODS AND MATERIALS: From 2003 to 2015, three different schedules were used as postoperative treatment for 146 patients (p) with intermediate-risk endometrial carcinoma. Group 1 (41 p): six fractions of 4-6 Gy, 3-4 fractions per week; Group 2 (59 p): four fractions of 5-6 Gy administered daily; Group 3 (46 p): 6 Gy × 3 fractions in three consecutive days...
August 8, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28801115/incidence-and-prediction-of-seed-migration-to-the-chest-after-iodine-125-brachytherapy-for-hepatocellular-carcinoma
#6
Junqing Lin, Weizhu Yang, Na Jiang, Qubin Zheng, Jingyao Huang, Ning Huang, Ang Li, Han Jiang
PURPOSE: The aims were to determine the incidence of seed migration to the chest and to analyze the predictive factors after iodine-125 brachytherapy for hepatocellular carcinoma. METHODS AND MATERIALS: Three hundred ninety-nine patients with hepatocellular carcinoma underwent iodine-125 seed brachytherapy. After seed implantation, chest X-ray radiograph or computerized tomography were undertaken to assess the occurrence and location of seed migration at 3 months after brachytherapy...
August 8, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28778599/incorporating-patient-specific-ct-based-ophthalmic-anatomy-in-modeling-iodine-125-eye-plaque-brachytherapy-dose-distributions
#7
Christopher J Tien, Melvin A Astrahan, Jenna M Kim, Miguel Materin, Zhe Chen, Ravinder Nath, Wu Liu
PURPOSE: To quantify the dosimetric impact of incorporating patient-specific CT-based models rather than the conventional stylized-standard model for eye plaque brachytherapy planning. METHODS AND MATERIALS: Plaque Simulator was used to plan 16 patients using both CT-based patient-specific eye model and stylized-standard (SS) eye models. Plaque position was initially based on the SS model and compared against their patient-specific model without changing the plaque loading pattern and seed strength...
August 1, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28764882/accuracy-and-variability-of-high-dose-rate-prostate-brachytherapy-needle-tip-localization-using-live-two-dimensional-and-sagittally-reconstructed-three-dimensional-ultrasound
#8
William Thomas Hrinivich, Douglas A Hoover, Kathleen Surry, Chandima Edirisinghe, Vikram Velker, Glenn Bauman, David D'Souza, Aaron Fenster, Eugene Wong
PURPOSE: To measure the accuracy and variability of manual high-dose-rate (HDR) prostate brachytherapy (BT) needle tip localization using sagittally reconstructed three-dimensional (3D) transrectal ultrasound (TRUS) augmented with live two-dimensional (2D) sagittal TRUS. METHODS AND MATERIALS: Ten prostate cancer patients underwent HDR-BT during which the sagittally assisted sagittally reconstructed (SASR) segmentation technique was completed in parallel with commercially available sagittally assisted axially reconstructed (SAAR) TRUS for comparison...
July 29, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28764881/dosimetric-impact-of-intrafraction-changes-in-mr-guided-high-dose-rate-hdr-brachytherapy-for-prostate-cancer
#9
Alexandra Rink, Jette Borg, Anna Simeonov, Gerald O'Leary, Joelle Helou, Cynthia Ménard, Peter Chung, David A Jaffray, Alejandro Berlin
PURPOSE: To assess changes in implant and treatment volumes through the course of a prostate high-dose-rate brachytherapy procedure and their impact on plan quality metrics. METHODS AND MATERIALS: Sixteen MRI-guided high-dose-rate procedures included a post-treatment MR (ptMR) immediately after treatment delivery (135 min between MR scans). Target and organs at risk (OARs) were contoured, and catheters were reconstructed. The delivered treatment plan was applied to the ptMR image set...
July 29, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28757404/intermediate-dose-volume-parameters-and-the-development-of-late-rectal-toxicity-after-mri-guided-brachytherapy-for-locally-advanced-cervix-cancer
#10
Reem Ujaimi, Michael Milosevic, Anthony Fyles, Akbar Beiki-Ardakani, Marco Carlone, Haiyan Jiang, Patricia Lindsay, Jason Xie, Rachel Gerber, Jennifer Croke, Julia Skliarenko, Wilfred Levin, Kathy Han
PURPOSE: The dose delivered to the most exposed 2 cm(3) [Formula: see text] of the rectum and bladder is predictive of late rectal and bladder toxicity in cervix cancer patients. We investigated the predictive value of intermediate doses to the rectum and bladder for late rectal/bladder toxicity after MRI-guided brachytherapy for patients with locally advanced cervix cancer. METHODS AND MATERIALS: Toxicity was prospectively graded using Common Toxicity Criteria for Adverse Events v4...
July 27, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28757403/performance-of-a-palladium-103-line-source-for-prostate-brachytherapy-implants-a-phase-i-trial
#11
Richard Stock, David Beyer, Jed Kaminetsky, William Ge
PURPOSE: To evaluate the use of a polymer-encapsulated palladium-103 ((103) Pd) source with a unique linear radioactive distribution in prostate brachytherapy. This feasibility study assessed dosimetry, ease and efficiency of use, and side effects. The number of needles required for adequate coverage was the primary end point. METHODS AND MATERIALS: CivaString (103) Pd Model CS10 implants were preplanned for 25 patients. CivaStrings were custom manufactured according to plan...
July 27, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28757402/brachytherapy-patient-safety-events-in-an-academic-radiation-medicine%C3%A2-program
#12
Shira Felder, Lyndon Morley, Elizabeth Ng, Kitty Chan, Heather Ballantyne, Anne Di Tomasso, Jette Borg, Jean-Pierre Bissonnette, Stephen Breen, John Waldron, Alexandra Rink, Michael Milosevic
PURPOSE: To describe the incidence and type of brachytherapy patient safety events over 10 years in an academic brachytherapy program. METHODS AND MATERIALS: Brachytherapy patient safety events reported between January 2007 and August 2016 were retrieved from the incident reporting system and reclassified using the recently developed National System for Incident Reporting in Radiation Treatment taxonomy. A multi-incident analysis was conducted to identify common themes and key learning points...
July 27, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28757401/impact-of-adjuvant-systemic-chemotherapy-on-wound-healing-and-cosmetic-outcome-in-224-women-treated-with-accelerated-partial-breast-irradiation-using-interstitial-brachytherapy
#13
Ashwini Budrukkar, Prakash Pandit, Tabassum Wadasadawala, Ritu Raj Upreti, Rakesh Jalali, Sudeep Gupta, Tanuja Shet, Vani Parmar, Rajendra Badwe, Rajiv Sarin
PURPOSE: To evaluate the impact of timing of adjuvant chemotherapy on wound healing and cosmetic outcome in women treated with accelerated partial breast irradiation (APBI). METHODS AND MATERIALS: Between August 2000 to December 2011, 224 women were treated with APBI using multicatheter interstitial high-dose-rate brachytherapy. Patients were treated to a dose of 34 Gy/10#/5-7 days with bid regimen. Systemic chemotherapy was administered as per the standard guidelines...
July 27, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28754301/high-dose-rate-brachytherapy-boost-for-prostate-cancer-comparison-of-three-different-fractionation-schemes
#14
Alexander T Falk, Sylvain Demontoy, Emmanuel Chamorey, Marie-Eve Chand, Mathieu Gautier, David Azria, Sara Zaki, Daniel Chevallier, Daniel Lam Cham Kee, Jean-Michel Hannoun-Lévi
PURPOSE: Dose escalation for prostate cancer can be achieved with a combination of external beam radiotherapy (EBRT) and brachytherapy (BT) boost to increase local control. For high-dose-rate (HDR)-BT, optimal fractionation remains under debate. The objective was to assess the clinical outcome of three schemes of HDR-BT boost. METHODS AND MATERIALS: Retrospective single institution data collection was performed. Patients received 46 Gy EBRT then an HDR-BT boost: 3 × 6 Gy, 2 × 9 Gy, or 1 × 14 Gy...
July 25, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28743612/clinical-outcomes-after-interstitial-brachytherapy-for-early-stage-nasal-squamous-cell-carcinoma
#15
Warren Bacorro, Alexandre Escande, Stéphane Temam, Isabelle Dumas, Emilie Routier, Marie-Catherine Gensse, Pierre Blanchard, François Janot, Christine Mateus, Yungan Tao, Caroline Robert, Eric Deutsch, Christine Haie-Meder, Cyrus Chargari
PURPOSE: Radiotherapy of nasal carcinomas results in cure rates comparable to surgery, with anatomic preservation and good cosmesis. Brachytherapy (BT) overcomes difficulties with dosimetric coverage and affords a localized and highly conformal irradiation. We report our experience of BT for early-stage nasal squamous cell carcinomas (SCCs). METHODS AND MATERIALS: Clinical data, BT parameters, and outcome of consecutive patients treated by interstitial BT in our institute between December 1982 and April 2015 for a localized nasal SCC were examined...
July 22, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28735877/dose-comparison-between-tg-43-based-calculations-and-radiochromic-film-measurements-of-the-freiburg-flap-applicator-used-for-high-dose-rate-brachytherapy-treatments-of-skin-lesions
#16
Saad Aldelaijan, Hamed Bekerat, Ivan Buzurovic, Phillip Devlin, Francois DeBlois, Jan Seuntjens, Slobodan Devic
PURPOSE: Current high-dose-rate brachytherapy skin treatments with the Freiburg flap (FF) applicator are planned with treatment planning systems based on the American Association of Physicists in Medicine TG-43 data sets, which assume full backscatter conditions in dose calculations. The aim of this work is to describe an experimental method based on radiochromic film dosimetry to evaluate dose calculation accuracy during surface treatments with the FF applicator at different depths and bolus thicknesses...
July 20, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28697858/accelerated-partial-breast-irradiation-for-elderly-women-with-early-breast-cancer-a-compromise-between-whole-breast-irradiation-and-omission-of-radiotherapy
#17
Shakeel Sumodhee, Johan Levy, Emmanuel Chamorey, Daniel Lam Cham Kee, Marie-Eve Chand, Mathieu Gautier, Isabelle Peyrottes, Emmanuel Barranger, Jean-Michel Hannoun-Levi
PURPOSE: Regarding adjuvant radiation therapy making decision for elderly women, Albert (2013) published a nomogram predicting the mastectomy-free survival (MFS) rate with or without adjuvant irradiation. Based on this approach, we proposed to investigate the use of accelerated partial breast irradiation (APBI) vs. whole breast irradiation (WBI) or endocrine therapy alone in elderly low-risk breast cancer patients. METHODS AND MATERIALS: For each elderly woman treated by conserving surgery and APBI (multicatheter interstitial high-dose-rate brachytherapy), 5- and 10-year MFS rates were calculated...
July 8, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28694117/brachytherapy-boost-for-prostate-cancer-a-potential-conflict-of-disinterest
#18
LETTER
Jean-Michel Hannoun-Levi, Arthur Hannoun
No abstract text is available yet for this article.
July 7, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28694116/effect-of-bladder-distension-on-doses-to-organs-at-risk-in-pulsed-dose-rate-3d-image-guided-adaptive-brachytherapy-for-locally-advanced-cervical-cancer
#19
Jean Philippe Nesseler, Claire Charra-Brunaud, Julia Salleron, Jean François Py, Andres Huertas, Emilie Meknaci, Florent Courrech, Didier Peiffert, Sophie Renard-Oldrini
PURPOSE: To evaluate the impact of bladder distension on doses to organs at risk in patients treated with 3D image-guided adaptive pulsed-dose-rate (PDR) brachytherapy (BT) for locally advanced cervical cancer. METHODS AND MATERIALS: Twenty-two patients who had previously been treated by external beam radiation therapy (EBRT), underwent BT treatment planning to a pelvic MRI (or a CT scan in case of contraindication) after their bladder was filled with 100 cc of physiological saline (full bladder)...
July 7, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28694115/differences-in-urethral-dosimetry-between-ct-and-mr-imaging-in-multichannel-vaginal-cylinder-brachytherapy
#20
Katherine S Chen, Scott M Glaser, Hayeon Kim, Sushil Beriwal
PURPOSE: In image-based brachytherapy (IBBT), the dosimetry of small structures may be particularly sensitive to changes in contouring between imaging modalities. We therefore sought to characterize differences in urethral dosimetry in vaginal brachytherapy based on contouring on MRI vs. CT. METHODS AND MATERIALS: We retrospectively identified our most recent 15 patients treated with intracavitary brachytherapy for distal vaginal malignancies. On T2-weighted MRI, both the lumen and urethral wall were contoured...
July 7, 2017: Brachytherapy
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