A.Wambersie(1), P.M.DeLuca Jr(2), R.S.Caswell(3) and H.G.Menzel(4) (1) Université Catholique de Louvain, 1200 Brussels, Belgium (2) University of Wisconsin, Madison, WI, 53706, USA (3) National Institute of Standards and Technology, Gaithersburg, MD, 20899, USA (4) CERN, Geneva, CH International Commission on Radiation Units and Measurements (ICRU), 7910 Woodmont Avenue, Suite 800 Bethesda, Mar...

There is no consensus on the use of computed tomography in vaginal cuff brachytherapy (VCB) planning. The purpose of this study was to prospectively determine the reproducibility of point bladder dose parameters (DICRU and maximum dose), compared with volumetric-based parameters. Twenty-two patients who were treated with high-dose-rate (HDR) VCB underwent simulation by computed tomography (CT-s...

PURPOSE In high-dose-rate (HDR) brachytherapy (BT), the source dwell times and dwell positions are essential treatment planning parameters. An optimal choice of these factors is fundamental to obtain the desired target coverage with the lowest achievable dose to the organs at risk (OARs). This study evaluates relevant dose parameters in cervix brachytherapy in order to assess existing tandem-ri...

PURPOSE The aim of this study is to evaluate the decrease of biological equivalent dose and its correlation with local/loco-regional control of tumour in the treatment of cervical cancer when the strength of the Ir-192 high dose rate (HDR) brachytherapy (BT) source is reduced to single, double and triple half life in relation to original strength of 10 Ci (∼ 4.081 cGy x m(2) x h(-1)). MATERIA...

Telah dilakukan perencanaan radioterapi pada pasien kanker nasofaring (KNF) stadium III menggunakan teknik Intensity Modulated Radiotherapy (IMRT). Penelitian ini bertujuan untuk menganalisis nilai Conformity Index (CI), Homogeneity (HI), dan dosis radiasi Organ at Risk (OAR). Perencanaan IMRT Software Treatment Planning System (TPS) Eclipse 5 laki-laki KNF yang berusia 8-65 tahun dengan 2 Gy, ...

The objective of calibrating TLD badges and radiation survey meters demand that accurate dose gets to the TLDs and radiation survey meters. A lead block mould and an ICRU slab phantom had been designed and constructed to collimate the panoramic Cs-137 source at the secondary standards dosimetry laboratory (SSDL) by experts at the National Nuclear Research Institute (NNRI) workshop of the Ghana ...

Dose distributions in different models of inhomogeneous phantoms irradiated with 3 19 MeV electron beams have been calculated using DOSXYZnrc/EGSnrc Monte Carlo code. The rectilinear 3D voxel phantoms, relevant for radiotherapy and clinical dosimetry, were built from ICRU soft tissue equivalent material in which was inserted a single layer of bone, lung, air or Titanium. Significant interface e...