نتایج جستجو برای: rectal toxicity imrt

تعداد نتایج: 151115  

2017
Andrew Ling Eli Furhang Shannon N. Ryemon Ronald D. Ennis

Purpose We retrospectively analyzed late small bowel toxicity in patients who received abdominal or pelvic intensity modulated radiation therapy (IMRT) to the small bowel with a maximum dose greater than the generally accepted maximal tolerable dose of 45 Gy. Methods and materials All patients (N = 94) who received IMRT with a point dose of at least 45 Gy to tightly contoured small bowel betw...

Journal: :Journal of Medical and Scientific Research 2022

Though adjuvant radiotherapy has an established role in the treatment of carcinoma breast, there is concern regarding irradiation to heart and lung, more on left sided disease. Intensity Modulated Radiation Therapy (IMRT) modulates intensity radiation beams with better accuracy, sparing surrounding normal organs. But it increases integral dose healthy tissues compared 3-Dimensional Conformal (3...

Journal: :Journal of Experimental & Clinical Cancer Research : CR 2009
Simona Marzi Biancamaria Saracino Maria G Petrongari Stefano Arcangeli Sara Gomellini Giorgio Arcangeli Marcello Benassi Valeria Landoni

BACKGROUND Recently, the use of hypo-fractionated treatment schemes for the prostate cancer has been encouraged due to the fact that alpha/beta ratio for prostate cancer should be low. However a major concern on the use of hypofractionation is the late rectal toxicity, it is important to be able to predict the risk of toxicity for alternative treatment schemes, with the best accuracy. The main ...

2013
Thomas Mulliez Bruno Speleers Indira Madani Werner De Gersem Liv Veldeman Wilfried De Neve

BACKGROUND Early stage breast cancer patients are long-term survivors and finding techniques that may lower acute and late radiotherapy-induced toxicity is crucial. We compared dosimetry of wedged tangential fields (W-TF), tangential field intensity-modulated radiotherapy (TF-IMRT) and multi-beam IMRT (MB-IMRT) in prone and supine positions for whole-breast irradiation (WBI). METHODS MB-IMRT,...

2016
Gareth C. Livingston Andrew J. Last Thomas P. Shakespeare Patrick M. Dwyer Justin Westhuyzen Michael J. McKay Lisa Connors Stephanie Leader Stuart Greenham

INTRODUCTION For patients receiving radiotherapy for locally advance non-small cell lung cancer (NSCLC), the probability of experiencing severe radiation pneumonitis (RP) appears to rise with an increase in radiation received by the lungs. Intensity modulated radiotherapy (IMRT) provides the ability to reduce planned doses to healthy organs at risk (OAR) and can potentially reduce treatment-rel...

Journal: :Tumori 2013
Mehee Choi John P Hayes Minesh P Mehta Andrew Swisher William Small Bharat B Mittal Gary R MacVicar John A Kalapurakal Samir V Sejpal

AIMS AND BACKGROUND Radiotherapy-related kidney injury is multifactorial and influenced by radiation dose-volume distributions, patient-related factors, and chemotherapy. Traditional radiation parameters for the kidney are based on pre-intensity-modulated radiotherapy (IMRT) data and focus on limiting the volume receiving high dose. We report a case of testicular seminoma with paraaortic adenop...

2012
Su-Ping Liu Xiao Huang Gui-Hao Ke Xiao-Wei Huang

We evaluate the outcomes of irradiation by using three-dimensional radiation therapy (3D-RT) or intensity-modulated radiotherapy (IMRT) for recurrent and metastatic cervical cancer. Between 2007 and 2010, 50 patients with recurrent and metastatic cervical cancer were treated using 3D-RT or IMRT. The median time interval between the initial treatment and the start of irradiation was 12 (6-51) mo...

Journal: :Genetics and molecular research : GMR 2015
L Yan M Wu N Ba L J Wang H Q Zhang G Y Shi Z S Zhang X J Wang

We investigated the clinical efficacy of adoptive cytokine-induced killer (CIK) cell and dendritic cell (DC) therapy plus intensity-modulated radiation therapy (IMRT) for treating elderly patients with esophageal carcinoma (EC). In total, 68 elderly patients with EC were randomized to receive IMRT plus DC-CIK immunotherapy (study group, N = 34) or IMRT only (control group, N = 34). Clinical eff...

Journal: :Annals of palliative medicine 2021

BACKGROUND To evaluate the efficacy and toxicity of docetaxel, cisplatin, fluorouracil (TPF) regimen followed by intensity modulated radiotherapy (IMRT) on locally advanced nasopharyngeal carcinoma (NPC). METHODS A total 150 patients with NPC [American Joint Committee Cancer (AJCC) 2009 stage IIIa-IVb] received 2 or 3 cycles a TPF as induction chemotherapy. group 67 participants (TPF group) con...

Journal: :International journal of radiation oncology, biology, physics 2014
Sonja Katayama Thorbjoern Striecker Kerstin Kessel Florian Sterzing Gregor Habl Lutz Edler Juergen Debus Klaus Herfarth

PURPOSE Hypofractionated radiation therapy as primary treatment for prostate cancer is currently being investigated in large phase 3 trials. However, there are few data on postoperative hypofractionation. The Radiation therapy for the Prostate Bed With or Without the Pelvic Lymph Nodes (PRIAMOS 1) trial was initiated as a prospective phase 2 trial to assess treatment safety and toxicity of a hy...

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