Assessing radiation plan quality in quantitative way – Part I

The conformity index (CI) was first proposed in 1993 by the Radiation Therapy Oncology Group (RTOG) and described in Report 62 of the International Commission on Radiation Units and Measurements (ICRU). The conformity index, together with other evaluation indices, is a tool for analysis of a treatment plan during radiation therapy. These indices should be…

ESAPI: Retrieving DICOM files from ARIA DB

(comming soon)

DICOM resources

Standards: DICOM Standard browser Tools: – DVTk – dicompyler – Orthanc – DICOM Server

DICOM tags modification

A DICOM file is composed of a basic file structure which can be seen below: The header consists of a 128 byte File Preamble, followed by a 4 byte DICOM prefix. The header sometimes may not be included in the file. It depends on the application and the vendor. So, if you wish to check…

How to calculate a dose-volume-histogram

Dose-volume histogram (DVH)

A dose-volume histogram (DVH) is a histogram relating radiation dose to tissue volume in radiation therapy planning. DVHs are most commonly used as a plan evaluation tool and to compare doses from different plans or to structures. DVH summarizes 3D dose distributions in a graphical 2D format. In modern radiation therapy, 3D dose distributions are…

RT-DICOM Tag viewer

RT-DICOM Tag viewer is an WPF application for viewing radiation treatment dicom tags. It supports RT-Images, RT-Plans, RT-Sructures, RT-Dosis files. You can download it from here…

High performance looping

using System; using System.Collections.Concurrent; using System.Collections.Generic; using System.Diagnostics; using System.Threading; using System.Threading.Tasks; namespace FastLoopingConsole { class Program { static void Main(string[] args) { Stopwatch sw = new Stopwatch(); long MaxNumber = 2500000000; ///////////////////////////////////////////////////////////// long sum = 0; sw.Restart(); sum = 0; Parallel.For(0, MaxNumber, (i) => { Interlocked.Add(ref sum, (long) Math.Sqrt(i)); }); sw.Stop(); Trace.WriteLine($”Method_1 (Parallel.For): Sum…

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