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Brachytherapy

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https://www.readbyqxmd.com/read/27908679/skin-surface-brachytherapy-a-survey-of-contemporary-practice-patterns
#1
Anna O Likhacheva, Phillip M Devlin, Shervin M Shirvani, Christopher A Barker, Phillip Beron, Ajay Bhatnagar, Stephen W Doggett, Lawrence Hochman, Charles Hsu, Michael Kasper, Martin Keisch, Subhakar Mutyala, Bradley Prestidge, Silvia Rodriguez Villalba, Vershalee Shukla, Srinath Sundararaman, Mitchell Kamrava
PURPOSE: The aim of this study was to define current patterns of care among radiation oncologists who use skin surface brachytherapy for the treatment of cutaneous squamous cell carcinoma (cSCC) and basal cell carcinoma (BCC) in academic and community settings. METHODS AND MATERIALS: A 30-question electronic survey was administered to clinician members of the American Brachytherapy Society. The respondents were asked to provide details regarding their clinical practice and their approach to skin surface brachytherapy...
November 28, 2016: Brachytherapy
https://www.readbyqxmd.com/read/27908678/avoidance-of-late-rectal-toxicity-after-high-dose-rate-brachytherapy-boost-treatment-for-prostate-cancer
#2
Borut Kragelj, Jernej Zlatic, Lijana Zaletel-Kragelj
PURPOSE: To elucidate potential risk factors important for the appearance of late rectal toxicity (LRT) after high-dose-rate boost treatment (HDRBT) of prostate cancer and to validate the predictive value of the minimal dose to the most exposed 2 cc of rectum received with HDRBT (D2ccrect). METHODS AND MATERIALS: The study of LRT, defined as relative deterioration of defecation problems (RDDP) (stool frequency, pain, rectal bleeding, fecal urgency, and incontinence) during follow-up period, was carried out on 88 patients, consecutively treated from October 2006 through April 2011 with HDRBT of 3 × 6-7 Gy to 50-50...
November 28, 2016: Brachytherapy
https://www.readbyqxmd.com/read/27876410/clinical-outcome-of-high-dose-rate-interstitial-brachytherapy-in-vulvar-cancer-a-single-institutional-experience
#3
Umesh Mahantshetty, Pushpa Naga, Reena Engineer, Supriya Sastri, Yogesh Ghadi, Udita Upreti, Vijaya Somesan, Sudarshan Kadam, Satish Kohle, Deepak Deshpande, Shyam Kishore Shrivastava
PURPOSE: With an aim to evaluate and report high dose date interstitial brachytherapy (HDR-ISBT) in vulvar cancers, we undertook this retrospective analysis. METHODS AND MATERIALS: Histologically proven vulvar cancers treated with HDR-ISBT between 2001 and 2016 were analyzed. Radiotherapy details, clinical outcome in terms of local control rates, survivals, and toxicities were evaluated. RESULTS: A total of 38 patients received HDR-ISBT, with definitive radiation in 29 (76...
November 19, 2016: Brachytherapy
https://www.readbyqxmd.com/read/27876378/toxicities-and-dose-volume-histogram-parameters-of-mri-based-brachytherapy-for-cervical-cancer
#4
Youngkyong Kim, Yeon-Joo Kim, Joo-Young Kim, Young Kyung Lim, Chiyoung Jeong, Jonghwi Jeong, Meyoung Kim, Myong Cheol Lim, Sang-Soo Seo, Sang-Yoon Park
PURPOSE: To analyze the toxicities and dose-volume histogram parameters of external-beam and magnetic resonance imaging-based intracavitary brachytherapy in cervical cancer patients. METHODS AND MATERIALS: Acute and late toxicities were assessed in 135 patients divided into four groups: group 1, grade 0; group 2, grades 1-4; group 3, grades 0-1; and group 4, grades 2-4. The doses at the International Commission on Radiation Units and Measurements (DICRU) and minimum doses to the most exposed 0...
November 18, 2016: Brachytherapy
https://www.readbyqxmd.com/read/27866953/triple-tandem-high-dose-rate-brachytherapy-for-early-stage-medically-inoperable-endometrial-cancer-initial-report-on-acute-toxicity-and-dosimetric-comparison-to-stereotactic-body-radiation-therapy
#5
Greg Kauffmann, Tianming Wu, Hania Al-Hallaq, Yasmin Hasan
PURPOSE: Stereotactic body radiotherapy (SBRT) may be appealing in medically inoperable endometrial cancer to avoid procedural risks. We performed a dosimetric comparison to triple-tandem, high-dose-rate (HDR) brachytherapy. METHODS AND MATERIALS: Six consecutive clinical stage I, grade 1-2, medically inoperable endometrial cancer patients were treated with triple-tandem HDR brachytherapy. We report patient factors and acute toxicity. Also, we performed dosimetric comparison to SBRT using both 3D conformal arc (3DArc) and volumetric-modulated arc therapy...
November 17, 2016: Brachytherapy
https://www.readbyqxmd.com/read/27836496/differences-in-outcome-for-cervical-cancer-patients-treated-with-or-without-brachytherapy
#6
Johannes Karlsson, Ann-Charlotte Dreifaldt, Louise Bohr Mordhorst, Bengt Sorbe
PURPOSE: To compare the clinical outcome of cervical cancer patients treated with primary radiotherapy with and without the addition of brachytherapy. METHODS AND MATERIALS: In all, 220 patients with cervical cancer stage I-IV treated between 1993 and 2009 were included. Three or five 6.0 Gy fractions of brachytherapy were given in addition to the external beam radiotherapy to 134 patients, whereas 86 patients received external beam radiotherapy alone (EBRTA). In the EBRTA group, the patients received external boost instead of brachytherapy with a total dose to the tumor of 64-72 Gy...
November 8, 2016: Brachytherapy
https://www.readbyqxmd.com/read/27816540/frequency-of-whole-breast-radiation-therapy-after-intraoperative-radiation-therapy-due-to-criteria-identified-by-lumpectomy
#7
Eric A Mellon, Amber Orman, Luis E Joya, Michael E Montejo, Christine Laronga, Susan J Hoover, M Catherine Lee, Nazanin Khakpour, Pamela F Kubal, Roberto Diaz
PURPOSE: For selected early breast cancers, intraoperative radiation therapy (IORT) at the time of lumpectomy can be an efficient alternative to fractionated whole breast radiation therapy (WBRT). However, some patients are later recommended WBRT after IORT due to surgical pathologic findings. To understand risk factor identification rates triggering WBRT recommendation, we analyzed adverse prognostic features based on multiple international criteria for suitability for accelerated partial breast irradiation...
November 2, 2016: Brachytherapy
https://www.readbyqxmd.com/read/27816539/feasibility-study-of-toxicity-outcomes-using-gec-estro-contouring-guidelines-on-ct-based-instead-of-mri-based-planning-in-locally-advanced-cervical-cancer-patients
#8
Vicky Koh, Bok Ai Choo, Khai Mun Lee, Teng Hwee Tan, Jen Hui Jeffrey Low, Soon Yau Joseph Ng, Arunachalam Ilancheran, Liang Shen, Johann Tang
PURPOSE: To report late rectal and bladder toxicity outcomes of a CT-based image-guided brachytherapy (IGBT) technique for treatment of cervical cancer. METHODS AND MATERIALS: Between 2008 and 2014, 95 women with International Federation of Gynecology and Obstetrics stage IB to IVA cervical carcinoma treated with definitive concurrent cisplatin-based chemotherapy and external beam radiation therapy 50.4 Gy in 28 fractions followed by planned prescription dose of 7 Gy × 4 fractions of high-dose-rate IGBT was retrospectively reviewed...
November 2, 2016: Brachytherapy
https://www.readbyqxmd.com/read/27780688/patterns-of-care-in-women-with-high-intermediate-risk-endometrioid-adenocarcinoma-in-the-portec-2-era-a-seer-database-analysis
#9
Peter J Zavitsanos, Kara L Leonard
PURPOSE: We examined the radiotherapy patterns of care over an 8-year period during which the PORTEC-2 trial and other series were published. METHODS AND MATERIALS: Patients diagnosed with Stage I endometrioid adenocarcinoma (EA) between 2004 and 2011 were identified in the National Cancer Institute's Surveillance, Epidemiology, and End Results database. Adjuvant radiation treatments were analyzed by year. Patterns of care from 2004 to 2008 were compared to those from 2009 to 2011 using the χ(2) test...
October 22, 2016: Brachytherapy
https://www.readbyqxmd.com/read/27771243/the-american-brachytherapy-society-task-group-report-combination-of-brachytherapy-and-external-beam-radiation-for-high-risk-prostate-cancer
#10
Daniel E Spratt, Payal D Soni, Patrick W McLaughlin, Gregory S Merrick, Richard G Stock, John C Blasko, Michael J Zelefsky
PURPOSE: To review outcomes for high-risk prostate cancer treated with combined modality radiation therapy (CMRT) utilizing external beam radiation therapy (EBRT) with a brachytherapy boost. METHODS AND MATERIALS: The available literature for high-risk prostate cancer treated with combined modality radiation therapy was reviewed and summarized. RESULTS: At this time, the literature suggests that the majority of high-risk cancers are curable with multimodal treatment...
October 19, 2016: Brachytherapy
https://www.readbyqxmd.com/read/27771242/incorporating-three-dimensional-ultrasound-into-permanent-breast-seed-implant-brachytherapy-treatment-planning
#11
Daniel Morton, Deidre Batchelar, Michelle Hilts, Tanya Berrang, Juanita Crook
PURPOSE: Planning permanent breast seed implant (PBSI) brachytherapy using CT alone may reduce treatment accuracy because of differences in seroma visualization compared with ultrasound (US). This study evaluates dosimetric effects of seroma delineation in PBSI and the potential impact of incorporating three-dimensional (3D) US into PBSI treatment planning. METHODS AND MATERIALS: Spatially coregistered CT and 3D US images from 10 patients were retrospectively analyzed to simulate the PBSI procedure...
October 19, 2016: Brachytherapy
https://www.readbyqxmd.com/read/27743957/locoregional-recurrence-by-molecular-subtype-after-multicatheter-interstitial-accelerated-partial-breast-irradiation-results-from-the-pooled-registry-of-multicatheter-interstitial-sites-research-group
#12
Bethany M Anderson, Mitchell Kamrava, Pin-Chieh Wang, Peter Chen, D Jeffrey Demanes, John K Hayes, Robert R Kuske
PURPOSE: To determine in breast tumor recurrence (IBTR) and regional nodal recurrence (RNR) rates for women treated with multicatheter interstitial accelerated partial breast irradiation. METHODS AND MATERIALS: Data from five institutions were collected for patients treated from 1992 to 2013. We report outcomes of 582 breast cancers with ≥1 year of followup. Molecular subtype approximation was performed using estrogen receptor, progesterone receptor, Her2, and grade...
October 12, 2016: Brachytherapy
https://www.readbyqxmd.com/read/27743956/the-impact-of-timing-of-salvage-hormonal-therapy-on-survival-after-brachytherapy-for-prostate-cancer
#13
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
https://www.readbyqxmd.com/read/27743955/image-guided-high-dose-rate-brachytherapy-boost-to-the-dominant-intraprostatic-lesion-using-multiparametric-magnetic-resonance-imaging-including-spectroscopy-results-of-a-prospective-study
#14
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
https://www.readbyqxmd.com/read/27720585/updated-feasibility-and-reproducibility-results-of-multi-institutional-study-of-noninvasive-breast-tumor-bed-boost
#15
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
https://www.readbyqxmd.com/read/27720311/predictive-factors-of-rectal-toxicity-after-permanent-iodine-125-seed-implantation-prospective-cohort-study-in-2339-patients
#16
Norihisa Katayama, Atsunori Yorozu, Shinichiro Maruo, Shinsuke Kojima, Toshio Ohashi, Nobumichi Tanaka, Takashi Kikuchi, Satoshi Higashide, Shiro Saito, Takushi Dokiya, Masanori Fukushima, Hidetoshi Yamanaka
PURPOSE: To evaluate the incidence and the associated factors of rectal toxicity in patients with prostate cancer undergoing permanent seed implantation (PI) with or without external beam radiation therapy (EBRT) in a nationwide prospective cohort study in Japan (J-POPS) during the first 2 years. METHODS AND MATERIALS: A total of 2,339 subjects were available for the analyses. Rectal toxicity was evaluated using the National Cancer Institute Common Terminology Criteria for Adverse Events version 3...
October 5, 2016: Brachytherapy
https://www.readbyqxmd.com/read/27720310/sensitivity-of-clinically-relevant-dosimetric-parameters-to-contouring-uncertainty-in-postimplant-dosimetry-of-low-dose-rate-prostate-permanent-seed-brachytherapy
#17
Shahram Mashouf, Habib Safigholi, Tomas Merino, Abraam Soliman, Ananth Ravi, Gerard Morton, William Y Song
PURPOSE: There is strong evidence relating postimplant dosimetry for low-dose-rate prostate seed brachytherapy to local control rates. The delineation of the prostate on CT images, however, represents a challenge due to the lack of soft-tissue contrast to identify the prostate borders. This study aims at quantifying the sensitivity of prostate V100 and D90 to contouring uncertainty as clinically relevant parameters for evaluation of target coverage in postimplant dosimetry. METHODS AND MATERIALS: CT images, postoperative plans, and contours of a cohort of patients (n = 43; low risk = 55...
October 5, 2016: Brachytherapy
https://www.readbyqxmd.com/read/27720205/a-novel-conformal-superficial-high-dose-rate-brachytherapy-device-for-the-treatment-of-nonmelanoma-skin-cancer-and-keloids
#18
Clara Ferreira, Daniel Johnson, Karl Rasmussen, Clinton Leinweber, Salahuddin Ahmad, Jae Won Jung
PURPOSE: To develop a novel conformal superficial brachytherapy (CSBT) device as a treatment option for the patient-specific radiation therapy of conditions including superficial lesions, postsurgical positive margins, Dupuytren's contractures, keloid scars, and complex anatomic sites (eyelids, nose, ears, etc.). METHODS AND MATERIALS: A preliminary CSBT device prototype was designed, built, and tested using readily available radioactive seeds. Iodine-125 ((125)I) seeds were independently guided to the treatment surface to conform to the target...
October 3, 2016: Brachytherapy
https://www.readbyqxmd.com/read/27720204/brachytherapy-should-not-be-omitted-when-treating-locally-advanced-neuroendocrine-cervical-cancer-with-definitive-chemoradiation-therapy
#19
Tyler P Robin, Arya Amini, Tracey E Schefter, Kian Behbakht, Christine M Fisher
PURPOSE: Neuroendocrine cervical cancer is a rare malignancy with a poor prognosis, yet there is a paucity of data to guide treatment decisions when managing patients with this diagnosis. Specifically, there are little data to aid practitioners in deciding if there is added value to brachytherapy given the additional time, cost, discomfort, and toxicity to patients. METHODS AND MATERIALS: We used the National Cancer Data Base to identify women with locally advanced neuroendocrine cervical cancer treated with definitive chemoradiotherapy to determine if the addition of brachytherapy improves outcomes in this disease...
October 3, 2016: Brachytherapy
https://www.readbyqxmd.com/read/27720203/interstitial-brachytherapy-as-a-boost-to-patients-with-anal-carcinoma-and-poor-response-to-chemoradiation-single-institution-long-term-results
#20
Thomas Gryc, Oliver Ott, Florian Putz, Stefan Knippen, Dimitrios Raptis, Rainer Fietkau, Vratislav Strnad
PURPOSE: To analyze the efficacy of a protocol-based brachytherapy (BT) boost after external beam radiation therapy (EBRT) with simultaneous chemotherapy in patients with anal carcinoma. METHODS AND MATERIALS: About 190 patients have been analyzed. Around 143 patients were identified with a good clinical response at the end of EBRT. Another 47 patients received an additional BT boost to the residual tumor at 6 weeks after end of chemoradiation. RESULTS: The 5-year incidence of local recurrence was 24% in patients with BT boost and 19% in patients without BT boost (p = 0...
October 3, 2016: Brachytherapy
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