Dr. Ilias Sachpazidis
Medical software engineering
Centroidal Voronoi Tessellation (CVT) space partitioning
A CVT is a special type of Voronoi tessellation when each generator, of each Voronoi cell, is located in the center of the mass of the cell. CVT is an optimal partition corresponding to an optimal distribution of generators. A set is tessellated by k generators (is the position of the generator) into k Voronoi cells (denoting…
Catheter overloading for patient specific QA in brachytherapy
Patient specific QA is the gold standard for external beam radiotherapy (IMRT/VMAT). Brachytherapy treatment planning (BTP) has become more complex due to advanced imaging (MR, PET, US), advanced dose calculation algorithms and new applicators.
NextGen Connect Integration Engine (formely Mirth Connect)
NextGen Connect (formerly Mirth Connect) is designed for seamless healthcare message integration. It is easily configurable, easily deployed, and scalable. In one word, it is an health information and data integration engine. It solves the problem of sharing and exchanging data between healthcare applications. Data interchange is a significant problem in healthcare. There are numerous…
MIRTH Connect installation
Download an installation setup that matches your operating system from: https://www.nextgen.com/products-and-services/nextgen-connect-integration-engine-downloads Before the installation, please make sure that the latest version of Java engine runs on your system. Minumum Java version is 1.8. (Any earlier version is not going to end up with a functional system). Java engine can be downloaded from here: http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html Checking…
RDBMS to MongoDB Migration
Recently, MongoDB issued a white paper on “RDBMS to MongoDB Migration”. They discuss matters, to be considered, on migration planning process and best practices. The paper can be download from here.
H2020: Seal of Excellence
The European Commission has launched a new certificate to give a special recognition to outstanding project proposals that pass the quality threshold but could not be funded due to the limited budget. Consortia and projects stamped with the “seal of excellence” certificate are able to approach alternative funding sources, e.g national or regional, private or public ones.…
C-MOVE from ARIA database to ORTHANC
Let’s say that you have an installation of VARIAN ARIA database at your premises and you would like to push, over DICOM network protocol, patient’s DICOM data (e.g. imaging modalities, structures, plans, doses file) to PACS or any other DICOM network-enabled application. DICOM service configuration (on ARIA server): Before we are able to send…
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…
DICOM resources
Standards: DICOM Standard browser Tools: – DVTk – dicompyler – Orthanc – DICOM Server