Comparison of dose volume histogram parameters and dynamic electrocardiogram changes between intensity modulated radiation therapy and conventional radiotherapy for the thoracic tumor
Abstract：Objective To compare the dose volume histogram ( DVH) parameters and dynamic electrocardio-gram( DCG) changes between intensity modulated radiotherapy ( IMRT) and conventional radiotherapy ( CRT) for the thoracic tumor.Methods The patients with thoracic tumors were divided into IMRT group and CRT group ,with 36 cases in every group , two groups were tested with 24-hour DCG before , during and after treatment to compare DVH parameters and DCG changed .Results Heart V30-V50 in IMRT group were significantly lower than that in the CRT group, with statistical significance ( P<0.01 ) , the abnormity incidence rates of DCG was statistically significant be-tween IMRT group and CRT group(before, during and after treatment)(P<0.01), the abnormity incidence rates of DCG were lower in IMRT group than that of CRT group during and after treatment , with statistical significance ( P<0.05 ) .Conclusion Both treatments can cause DCG change , but at the same dose IMRT group has smaller heart ir-radiation volume and lighter change of DCG .
Keywords：Thoracic tumorIntensity modulated radiation therapyConventional radiotherapyDose volume histogramDynamic electrocardiogram
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 188-190 )