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Radiation Oncology Journal

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https://read.qxmd.com/read/30518169/sinonasal-teratocarcinosarcoma-treated-with-surgery-followed-by-volumetric-modulated-radiotherapy-a-case-report-with-review-of-literature
#1
Sarthak Tandon, Munish Gairola, Parveen Ahlawat, Kanika Sharma, Soumitra Barik, Nishtha Sachdeva, Sunil Pasricha, Apeksha Shenoy
Surgical excision along with use of postoperative radiotherapy forms an integral management of sinonasal teratocarcinosarcoma (SNTCS). However, given the rarity of the tumor, no standardised guidelines, dose, technique and target delineation exist especially in the era of modern radiation delivery techniques. This is a case of 55-year-old male diagnosed as SNTCS treated with radical ethmoidectomy followed by volumetric modulated radiotherapy, showing good local control and acceptable toxicity profile.
December 7, 2018: Radiation Oncology Journal
https://read.qxmd.com/read/30630272/benefit-of-volumetric-modulated-arc-therapy-over-three-dimensional-conformal-radiotherapy-for-stage-i-ii-extranodal-marginal-zone-b-cell-lymphoma-of-mucosa-associated-lymphoid-tissue-in-the-stomach-a-dosimetric-comparison
#2
Joo-Hyun Chung, Kyoungsu Na, Il Han Kim
PURPOSE: To retrospectively analyze dosimetric parameters of volumetric-modulated arc therapy (VMAT) and three-dimensional conformal radiotherapy (3D-CRT) delivered to extranodal marginal zone B-cell lymphomas of mucosa-associated lymphoid tissue in the stomach (gastric MALT lymphoma) to find out advantages of VMAT and conditions for definite benefits of VMAT. MATERIALS AND METHODS: Fifty patients with stage I-II gastric MALT lymphoma received VMAT (n = 14) or 3D-CRT (n = 36) between December 2005 and April 2018...
December 2018: Radiation Oncology Journal
https://read.qxmd.com/read/30630271/efficacy-of-adjuvant-radiotherapy-in-non-extremity-soft-tissue-sarcoma-with-moderate-chemosensitivity
#3
Eun Mi Lee, Dong Hyun Kim, Do Young Kim, Young Mi Seol, Young Jin Choi, Hyojeong Kim
PURPOSE: Soft tissue sarcoma (STS) is a rare and heterogeneous cancer with over 50 known subtypes. It is difficult to understand the role of adjuvant treatment in STS. We aimed to determine the benefits of adjuvant treatment for a rare STS subset: non- extremity STS with moderate chemosensitivity. MATERIALS AND METHODS: We reviewed medical records from Pusan National University Hospital and Kosin University Gospel Hospital, which had detailed pathological reports on patients diagnosed between 2006 and 2016...
December 2018: Radiation Oncology Journal
https://read.qxmd.com/read/30630270/postoperative-radiotherapy-for-mucoepidermoid-carcinoma-of-the-major-salivary-glands-long-term-results-of-a-single-institution-experience
#4
Geumju Park, Sang-Wook Lee
PURPOSE: This study aimed to evaluate the long-term survival outcomes and prognostic factors that affect the clinical outcomes of patients who underwent surgery and postoperative radiotherapy for major salivary gland mucoepidermoid carcinoma (MEC). MATERIALS AND METHODS: We retrospectively reviewed the clinical data of 44 patients who underwent surgery followed by radiotherapy for primary MEC of the major salivary glands between 1991 and 2014. The median follow-up period was 9...
December 2018: Radiation Oncology Journal
https://read.qxmd.com/read/30630269/elective-neck-treatment-in-clinically-node-negative-paranasal-sinus-carcinomas-impact-on-treatment-outcome
#5
Won Hee Lee, Seo Hee Choi, Se-Heon Kim, Eun Chang Choi, Chang Geol Lee, Ki Chang Keum
PURPOSE: The indication of elective neck treatment (ENT) for clinically N0 (cN0) paranasal sinus (PNS) carcinoma remains unclear. We aimed to investigate different treatment outcomes regarding ENT and propose optimal recommendations for ENT. MATERIALS AND METHODS: We identified patients with cN0 PNS carcinoma who underwent curative-intent treatment between 1992 and 2015. Survival outcomes and pattern of failure were compared between patients who received ENT and those who did not...
December 2018: Radiation Oncology Journal
https://read.qxmd.com/read/30630268/tumor-volume-metabolic-information-can-improve-the-prognostication-of-anatomy-based-staging-system-for-nasopharyngeal-cancer-evaluation-of-the-8th-edition-of-the-ajcc-uicc-staging-system-for-nasopharyngeal-cancer
#6
Yuri Jeong, Sang-Wook Lee
PURPOSE: We evaluated prognostic value of the 8th edition of the American Joint Committee on Cancer/International Union for Cancer Control (AJCC/UICC) staging system for nasopharyngeal cancer and investigated whether tumor volume/metabolic information refined prognostication of anatomy based staging system. MATERIALS AND METHODS: One hundred thirty-three patients with nasopharyngeal cancer who were staged with magnetic resonance imaging (MRI) and treated with intensity-modulated radiotherapy (IMRT) between 2004 and 2013 were reviewed...
December 2018: Radiation Oncology Journal
https://read.qxmd.com/read/30630267/local-and-regional-recurrence-following-mastectomy-in-breast-cancer-patients-with-1-3-positive-nodes-implications-for-postmastectomy-radiotherapy-volume
#7
Shin-Hyung Park, Jeeyeon Lee, Jeong Eun Lee, Min Kyu Kang, Mi Young Kim, Ho Yong Park, Jin Hyang Jung, Yee Soo Chae, Soo Jung Lee, Jae-Chul Kim
PURPOSE: To determine the necessity of postmastectomy radiotherapy (PMRT) and which regions would be at risk for recurrence, we evaluated local and regional recurrence in breast cancer patients with 1-3 positive nodes and a tumor size of <5 cm. MATERIALS AND METHODS: We retrospectively analyzed data of 133 female breast cancer patients with 1-3 positive nodes, and a tumor size of <5 cm who were treated with mastectomy followed by adjuvant systemic therapy between 2007 and 2016...
December 2018: Radiation Oncology Journal
https://read.qxmd.com/read/30630266/trends-in-intensity-modulated-radiation-therapy-use-for-rectal-cancer-in-the-neoadjuvant-setting-a-national-cancer-database-analysis
#8
Rodney E Wegner, Stephen Abel, Richard J White, Zachary D Horne, Shaakir Hasan, Alexander V Kirichenko
PURPOSE: Traditionally, three-dimensional conformal radiation therapy (3D-CRT) is used for neoadjuvant chemoradiation in locally advanced rectal cancer. Intensity-modulated radiation therapy (IMRT) was later developed for more conformal dose distribution, with the potential for reduced toxicity across many disease sites. We sought to use the National Cancer Database (NCDB) to examine trends and predictors for IMRT use in rectal cancer. MATERIALS AND METHODS: We queried the NCDB from 2004 to 2015 for patients with rectal adenocarcinoma treated with neoadjuvant concurrent chemoradiation to standard doses followed by surgical resection...
December 2018: Radiation Oncology Journal
https://read.qxmd.com/read/30630265/natural-radioprotectors-and-their-impact-on-cancer-drug-discovery
#9
Vinutha Kuruba, Pavan Gollapalli
Cancer is a complex multifaceted illness that affects different patients in discrete ways. For a number of cancers the use of chemotherapy has become standard practice. Chemotherapy is a use of cytostatic drugs to cure cancer. Cytostatic agents not only affect cancer cells but also affect the growth of normal cells; leading to side effects. Because of this, radiotherapy gained importance in treating cancer. Slaughtering of cancerous cells by radiotherapy depends on the radiosensitivity of the tumor cells. Efforts to improve the therapeutic ratio have resulted in the development of compounds that increase the radiosensitivity of tumor cells or protect the normal cells from the effects of radiation...
December 2018: Radiation Oncology Journal
https://read.qxmd.com/read/30630264/management-for-locally-advanced-cervical-cancer-new-trends-and-controversial-issues
#10
Oyeon Cho, Mison Chun
This article reviewed new trends and controversial issues, including the intensification of chemotherapy and recent brachytherapy (BT) advances, and also reviewed recent consensuses from different societies on the management of locally advanced cervical cancer (LACC). Intensive chemotherapy during and after radiation therapy (RT) was not recommended as a standard treatment due to severe toxicities reported by several studies. The use of positron emission tomography-computed tomography (PET-CT) and magnetic resonance imaging (MRI) for pelvic RT planning has increased the clinical utilization of intensity-modulated radiation therapy (IMRT) for the evaluation of pelvic lymph node metastasis and pelvic bone marrow...
December 2018: Radiation Oncology Journal
https://read.qxmd.com/read/30309217/impact-of-testicular-shielding-in-liposarcoma-to-scrotum-by-using-radio-photoluminescence-glass-dosimeter-rplgd-a-case-report
#11
Puntiwa Oonsiri, Kitwadee Saksornchai, Sivalee Suriyapee
Radiation protection in the scrotum to reduce the risk of genetic effect in the future is very important. This study aimed to measure the scrotal dose outside the treatment fields by using the radio-photoluminescence glass dosimeter (RPLGD). The characteristics of RPLGD model GD-302M were studied. Scattered dose to scrotum was measured in one liposarcoma case with the prescribed dose of 60 Gy. RPLGDs were placed in three different locations: one RPLGD was positioned at the posterior area which closer to the scrotum, and the other two RPLGDs were placed between the penis and the scrotum...
September 2018: Radiation Oncology Journal
https://read.qxmd.com/read/30309216/evaluation-of-the-hybrid-dynamic-conformal-arc-therapy-technique-for-radiotherapy-of-lung-cancer
#12
Sung Joon Kim, Jeong Won Lee, Min Kyu Kang, Jae-Chul Kim, Jeong Eun Lee, Shin-Hyung Park, Mi Young Kim, Seoung-Jun Lee, Soo-Ho Moon, Byoung-Soo Ko
PURPOSE: A hybrid-dynamic conformal arc therapy (HDCAT) technique consisting of a single half-rotated dynamic conformal arc beam and static field-in-field beams in two directions was designed and evaluated in terms of dosimetric benefits for radiotherapy of lung cancer. Materials and METHODS: This planning study was performed in 20 lung cancer cases treated with the VERO system (BrainLAB AG, Feldkirchen, Germany). Dosimetric parameters of HDCAT plans were compared with those of three-dimensional conformal radiotherapy (3D-CRT) plans in terms of target volume coverage, dose conformity, and sparing of organs at risk...
September 2018: Radiation Oncology Journal
https://read.qxmd.com/read/30309215/assessment-of-inter-and-intra-fractional-volume-of-bladder-and-body-contour-by-mega-voltage-computed-tomography-in-helical-tomotherapy-for-pelvic-malignancy
#13
Sunghyun Kim, Sei Hwan You, Young Ju Eum
PURPOSE: We describe the daily bladder volume change observed by mega-voltage computed tomography (MVCT) during pelvic radiotherapy with potential predictors of increased bladder volume variations. Materials and METHODS: For 41 patients who received pelvic area irradiation, the volumes of bladder and pelvic body contour were measured twice a day with pre- and post-irradiation MVCT from the 1st to the 10th fraction. The median prescription dose was 20 Gy (range, 18 to 30 Gy) up to a 10th fraction...
September 2018: Radiation Oncology Journal
https://read.qxmd.com/read/30309214/dose-comparison-between-prescription-methods-according-to-anatomical-variations-in-intracavitary-brachytherapy-for-cervical-cancer
#14
Euncheol Choi, Jae Ho Kim, Ok Bae Kim, Sang Jun Byun, Jin Hee Kim, Young Kee Oh
PURPOSE: We compared how doses delivered via two-dimensional (2D) intracavitary brachytherapy (ICBT) and three-dimensional (3D) ICBT varied anatomically. Materials and METHODS: A total of 50 patients who received 30 Gy of 3D ICBT after external radiotherapy (RT) were enrolled. We compared the doses of the actual 3D and 2D ICBT plans among patients grouped according to six anatomical variations: differences in a small-bowel V2Gy, small bowel circumference, the direction of bladder distension, bladder volume, sigmoid V3...
September 2018: Radiation Oncology Journal
https://read.qxmd.com/read/30309213/single-nucleotide-polymorphism-of-italic-gstp1-italic-and-pathological-complete-response-in-locally-advanced-rectal-cancer-patients-treated-with-neoadjuvant-concomitant-radiochemotherapy
#15
Luca Nicosia, Giovanna Gentile, Chiara Reverberi, Giuseppe Minniti, Maurizio Valeriani, Vitaliana de Sanctis, Luca Marinelli, Fabiola Cipolla, Ottavia de Luca, Maurizio Simmaco, Mattia F Osti
PURPOSE: Standard treatment for locally advanced rectal cancer consists of neoadjuvant radiochemotherapy with concomitant fluoropyrimidine or oxaliplatin and surgery with curative intent. Pathological complete response has shown to be predictive for better outcome and survival; nevertheless there are no biological or genetic factors predictive for response to treatment. We explored the correlation between the single nucleotide polymorphisms (SNPs) GSTP1 (A313G) and XRCC1 (G28152A), and the pathological complete response and survival after neoadjuvant radiochemotherapy in locally advanced rectal cancer patients...
September 2018: Radiation Oncology Journal
https://read.qxmd.com/read/30309212/use-of-radiotherapy-in-patients-with-palliative-double-bypass-for-locally-advanced-pancreatic-adenocarcinoma
#16
Juan Glinka, Federico Diaz, Augusto Alva, Oscar Mazza, Rodrigo Sanchez Claria, Victoria Ardiles, Eduardo de Santibañes, Juan Pekolj, Martín de Santibañes
PURPOSE: Pancreatic cancer (PC) has not changed overall survival in recent years despite therapeutic efforts. Surgery with curative intent has shown the best long-term oncological results. However, 80%-85% of patients with these tumors are unresectable at the time of diagnosis. In those patients, first therapeutic attempts are minimally invasive or surgical procedures to alleviate symptoms. The addition of radiotherapy (RT) to standard chemotherapy, ergo chemoradiation, in patients with locally advanced pancreatic cancer (LAPC) is still controversial...
September 2018: Radiation Oncology Journal
https://read.qxmd.com/read/30309211/effectiveness-and-feasibility-of-concurrent-chemoradiotherapy-using-simultaneous-integrated-boost-intensity-modulated-radiotherapy-with-and-without-induction-chemotherapy-for-locally-advanced-pancreatic-cancer
#17
Eun Sang Oh, Tae Hyun Kim, Sang Myung Woo, Woo Jin Lee, Ju Hee Lee, Sang Hee Youn, Sung Sik Han, Sang Jae Park, Dae Yong Kim
PURPOSE: To evaluate the effectiveness and feasibility of chemoradiotherapy (CRT) using simultaneous integrated boost-intensity modulated radiotherapy (SIB-IMRT) in locally advanced pancreatic cancer (LAPC) patients. Materials and METHODS: Between January 2011 and May 2015, 47 LAPC patients received CRT using SIB-IMRT. Prior to SIBIMRT, 37 patients (78.7%) received induction chemotherapy (IC-CRT group) and remaining 10 patients (21.3%) did not received induction chemotherapy (CRT group)...
September 2018: Radiation Oncology Journal
https://read.qxmd.com/read/30309210/optimal-timing-for-salvage-surgery-after-definitive-radiotherapy-in-hypopharyngeal-cancer
#18
Seok-Joo Chun, Bhumsuk Keam, Dae Seog Heo, Kwang Hyun Kim, Myung-Whun Sung, Eun-Jae Chung, Ji-Hoon Kim, Kyeong Cheon Jung, Jin Ho Kim, Hong-Gyun Wu
PURPOSE: Use of radiotherapy combined with chemotherapy is increasing in hypopharyngeal cancer. However, many show residual tumor after radiotherapy. Timing for treatment evaluation and salvage therapy is essential. However, optimal timing for salvage surgery has not been suggested. In this study, we tried to evaluate optimal timing for salvage surgery. Methods and Materials: Patients who were diagnosed with hypopharyngeal squamous cell carcinoma between 2006 and 2015 were retrospectively analyzed...
September 2018: Radiation Oncology Journal
https://read.qxmd.com/read/30309209/clinical-outcome-of-proton-therapy-for-patients-with-chordomas
#19
Sang Hee Youn, Kwan Ho Cho, Joo-Young Kim, Boram Ha, Young Kyung Lim, Jong Hwi Jeong, Sang Hyun Lee, Heon Yoo, Ho-Shin Gwak, Sang Hoon Shin, Eun Kyung Hong, Han Kyu Kim, Je Beom Hong
PURPOSE: To investigate the clinical outcome of proton therapy (PT) in patients with chordoma. Materials and METHODS: Fifty-eight patients with chordoma treated with PT between June 2007 and December 2015 at the National Cancer Center, Korea, were retrospectively analyzed. The median total dose was 69.6 cobalt gray equivalent (CGE; range, 64.8 to 79.2 CGE). Local progression-free survival (LPFS), distant metastasis-free survival (DMFS), overall survival (OS), and diseasespecific survival (DSS) rates were calculated by the Kaplan-Meier method...
September 2018: Radiation Oncology Journal
https://read.qxmd.com/read/30309208/novel-biological-strategies-to-enhance-the-radiation-therapeutic-ratio
#20
Jae Ho Kim, Kenneth A Jenrow, Stephen L Brown
Successful anticancer strategies require a differential response between tumor and normal tissue (i.e., a therapeutic ratio). In fact, improving the effectiveness of a cancer therapeutic is of no clinical value in the absence of a significant increase in the differential response between tumor and normal tissue. Although radiation dose escalation with the use of intensity modulated radiation therapy has permitted the maximum tolerable dose for most locally advanced cancers, improvements in tumor control without damaging normal adjacent tissues are needed...
September 2018: Radiation Oncology Journal
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