Utilizing CBCT data for dose calculation in adaptive IMPT

Comparison of two different methods for CTDIw calculation in CBCT systems

Introduction: Dental Cone beam CT (CBCT) is an imaging modality which has emerged as a 3D imaging modality of choice for osseous structures in the maxillofacial region. With increased usage of CBCT imaging for diagnosis and treatment planning, it is imperative that stringent dose assessments must be performed for dose estimation to safeguard both the patients and operating staf...

Adaptive Dynamic Data Placement Algorithm for Hadoop in Heterogeneous Environments

Hadoop MapReduce framework is an important distributed processing model for large-scale data intensive applications. The current Hadoop and the existing Hadoop distributed file system’s rack-aware data placement strategy in MapReduce in the homogeneous Hadoop cluster assume that each node in a cluster has the same computing capacity and a same workload is assigned to each node. Default Hadoop d...

Universitet Benchmark dose calculation from epidemiological data

Simulation of beam record data for 4D dose calculation

Treatment of moving targets can result in local over and under dosage due to interference effects of the beam application and the motion of the target. First experimental studies [1] as well as theoretical works [2, 3] showed that multiple irradiations with an accordingly reduced dose per irradiation reduce these inhomogeneities due to averaging effects. If the multiple irradiations are perform...

New formula for Calculation of Cobalt-60 Percent Depth Dose

Introduction:  On  the  basis  of  percent  depth  dose  (PDD)  calculation,  the  application  of  dosimetry  in  radiotherapy  has  an  important  role  to  play  in  reducing  the  chance  of  tumor  recurrence. The aim of this study is to introduce a new formula for calculating the centeral axis  percent depth doses of Cobalt-60 beam.   Materials and Methods: In the present study, based on ...