Introduction Intensity modulated radiation therapy (IMRT) provides the means for improved treatment for a wide variety of cancers. Piggybacked onto 3DCRT and MLC technologies, IMRT has developed quickly, but will undoubtedly see improvements in core hardware and software as well as in peripheral applications such as record and verify, gating, etc. At the core, individual treatment centers shoul...

Aim: The aim was to evaluate the treatment outcomes and prognostic characteristics of patients with early-stage glottic laryngeal carcinoma who underwent radical radiotherapy (RT) different techniques.Materials Methods: Radiotherapy applied using 2D conventional technique, 3DCRT (three dimensional conformal IMRT (intensity modulated radiation therapy). Clinical T stages were 12 (48%) for T1a, 5...

BACKGROUND Prostate cancer (PC) is the most common cancer in men in the UK. Radiotherapy (RT) is a recognised treatment for PC and high-dose conformal radiotherapy (CRT) is the recommended standard of care for localised or locally advanced tumours. Intensity-modulated radiotherapy (IMRT) allows better dose distributions in RT. OBJECTIVE This report evaluates the clinical effectiveness and cos...

PURPOSE To compare target dose distribution, comformality, normal tissue avoidance, and irradiated body volume (IBV) in 3DCRT using classic anatomical landmarks (c3DCRT), 3DCRT fitting the PTV (f3DCRT), and intensity-modulated radiation therapy (IMRT) in patients with locally advanced rectal cancer (LARC). MATERIALS AND METHODS Fifteen patients with LARC underwent c3DCRT, f3DCRT, and IMRT pla...

The purpose of this study was to compare three computed tomography (CT) images under different conditions-average intensity projection (AIP), free breathing (FB), mid-ventilation (MidV)-used for radiotherapy contouring and planning in lung cancer patients. Two image sets derived from four-dimensional CT (4DCT) acquisition (AIP and MidV) and three-dimensional CT with FB were generated and used t...

BACKGROUND Our research compared whole pelvic (WP) and prostate-only (PO) 3-dimensional conformal radiotherapy (3DCRT) techniques in terms of the incidence and evolution of acute and late toxicity of the rectum and urinary bladder, and identified the PTV-parameters influencing these damages and changes in antitumor immune response. METHODS We analyzed 197 prostate cancer patients undergoing 3...

Few studies were conducted to explore the prognostic factors for nonendemic nasopharyngeal carcinoma (NPC) in the era of 3-dimensional conformal radiation therapy (3DCRT)/intensity-modulated radiation therapy (IMRT). The aim of this study was to evaluate the potential prognostic factors for nonendemic NPC.Between January 2004 and December 2011, a total of 393 nonendemic NPC patients receiving 3...

AIM To evaluate acute toxicity and symptoms palliation of a weekly hypofractionated 3DCRT schedule as radical treatment in elderly patients with organ confined bladder cancer cT1-2N0. MATERIALS AND METHODS Between February 2005 and June 2011, 58 prospectively selected patients diagnosed with organ confined bladder cancer were treated with external 3DCRT (4-field arrangement). All candidates w...