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From: HubMed - mesothelioma cancer <rssfwd@rssfwd.com>
Date: Thu, Jun 5, 2008 at 1:34 AM
Subject: Underestimation of Low-Dose Radiation in Treatment Planning of Intensity-Modulated Radiotherapy.
To: mesothelioma77@gmail.com
[1]Int J Radiat Oncol Biol Phys. 2008 May 29;
Jang SY, Liu HH, Mohan R
PURPOSE: To investigate potential dose calculation errors in the low-dose regions and identify causes of such errors for intensity-modulated radiotherapy (IMRT). METHODS AND MATERIALS: The IMRT treatment plans of 23 patients with lung cancer and mesothelioma were reviewed. Of these patients, 15 had severe pulmonary complications after radiotherapy. Two commercial treatment-planning systems (TPSs) and a Monte Carlo system were used to calculate and compare dose distributions and dose-volume parameters of the target volumes and critical structures. The effect of tissue heterogeneity, multileaf collimator (MLC) modeling, beam modeling, and other factors that could contribute to the differences in IMRT dose calculations were analyzed. RESULTS: In the commercial TPS-generated IMRT plans, dose calculation errors primarily occurred in the low-dose regions of IMRT plans (
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Source: http://www.hubmed.org/display.cgi?uids=18513883
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From: HubMed - mesothelioma cancer <rssfwd@rssfwd.com>
Date: Thu, Jun 5, 2008 at 1:34 AM
Subject: Underestimation of Low-Dose Radiation in Treatment Planning of Intensity-Modulated Radiotherapy.
To: mesothelioma77@gmail.com
[1]Int J Radiat Oncol Biol Phys. 2008 May 29;
Jang SY, Liu HH, Mohan R
PURPOSE: To investigate potential dose calculation errors in the low-dose regions and identify causes of such errors for intensity-modulated radiotherapy (IMRT). METHODS AND MATERIALS: The IMRT treatment plans of 23 patients with lung cancer and mesothelioma were reviewed. Of these patients, 15 had severe pulmonary complications after radiotherapy. Two commercial treatment-planning systems (TPSs) and a Monte Carlo system were used to calculate and compare dose distributions and dose-volume parameters of the target volumes and critical structures. The effect of tissue heterogeneity, multileaf collimator (MLC) modeling, beam modeling, and other factors that could contribute to the differences in IMRT dose calculations were analyzed. RESULTS: In the commercial TPS-generated IMRT plans, dose calculation errors primarily occurred in the low-dose regions of IMRT plans (
___
Source: http://www.hubmed.org/display.cgi?uids=18513883
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Powered by [5]RssFwd, a service of [6]Blue Sky Factory, Inc