Projects / Programmes source: ARIS

Verification of radioactive sources positioning during brachytherapy

Research activity

Code Science Field Subfield
2.06.09  Engineering sciences and technologies  Systems and cybernetics  Medical physics 

Code Science Field
B140  Biomedical sciences  Clinical physics, radiology, tomography, medical instrumentation 
brachytherapy, tumor, silicon detectors, quality assurance
Evaluation (rules)
source: COBISS
Researchers (6)
no. Code Name and surname Research area Role Period No. of publicationsNo. of publications
1.  13976  MSc Janez Burger  Oncology  Researcher  2007 - 2009  28 
2.  09081  PhD Vladimir Cindro  Physics  Researcher  2007 - 2009  1,569 
3.  02687  PhD Albert Peter Fras  Oncology  Researcher  2007 - 2009  271 
4.  15642  PhD Gregor Kramberger  Physics  Head  2007 - 2009  1,470 
5.  12313  PhD Igor Mandić  Physics  Researcher  2007 - 2009  1,464 
6.  21727  MSc Primož Petrič  Oncology  Researcher  2007 - 2009  122 
Organisations (2)
no. Code Research organisation City Registration number No. of publicationsNo. of publications
1.  0106  Jožef Stefan Institute  Ljubljana  5051606000  90,038 
2.  0302  Institute of Oncology Ljubljana  Ljubljana  5055733000  15,390 
A developement and construction of an apparatus for determination of the radioactive source position in brachytherapy is proposed. It is based on the pin-hole imaging of the radioactive source on the position sensitive silicon detectors. The position of the radio-active source would be determined with a resolution of around 1 mm within seconds. An immediate action in case of large discrepancies between foreseen and actual position of the source would be allowed. In addition, a more accurate comparison between actual and planned dose distribution in the tumor will be possible.
Significance for science
Although the work on the project requires scientific methods and approach, especially for simulation techniques, reconstruction of events and for parts of read-out electronics, the project is nevertheless of applicative nature. Its importance for fundamental science is therefore not so high, but on the other hand its applicative value is significant. It is important to emphasize that apart from quality assurance in brachytherapy treatment, the device offers potential improvements in therapy procedures. In that way it can have an impact on progress in medical science.
Significance for the country
The device is meant for quality assurance in brachytherapy. At the moment a single therapy applicator is used in Slovenia, however a second one is planned at Maribor hospital. Although quality assurance during therapy is the main purpose, the usage of device can be extended. One such possibility is quick check for catheter position after long term therapy. For prostate cancer therapies several CT scans are required to establish the relative moment of catheters and correct their position. The movement of patient and taking of CT scans is a painful and costly procedure. Determination of source position by quick movements of source would therefore greatly simplify the therapy. The development of aparatus in cooperation with ELGO line represents a development of high-tech product. In opens a possibility for production of larger number of devices and certainly improves the technological development of Slovenia. An important part of the project is development of flexible printed board circuits with fine pitch, which can found place in many applications.
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