A feasibility study of multislice x-ray CT imaging of gel dosimeters using the “zero scan” method

Kakakhel, Muhammad, Kairn, Tanya, Charles, Paul, & Trapp, Jamie (2014) A feasibility study of multislice x-ray CT imaging of gel dosimeters using the “zero scan” method. Journal of Applied Clinical Medical Physics, 15(4), pp. 367-371.

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This study extends the ‘zero scan’ method for CT imaging of polymer gel dosimeters to include multi-slice acquisitions. Multi slice CT images consisting of 24 slices of 1.2 mm thickness were acquired of an irradiated polymer gel dosimeter, and processed with the zero scan technique. The results demonstrate that zero scan based gel readout can be successfully applied to generate a three dimensional image of the irradiated gel field. Compared to the raw CT images the processed figures and cross gel profiles demonstrated reduced noise and clear visibility of the penumbral region. Moreover these improved results further highlight the suitability of this method in volumetric reconstruction with reduced CT data acquisition per slice. This work shows that 3D volumes of irradiated polymer gel dosimeters can be acquired and processed with x-ray CT.

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ID Code: 67492
Item Type: Journal Article
Refereed: Yes
Additional URLs:
Keywords: volumetric reconstruction, gel dosimeter, radiation therapy, x-ray computed tomography, ct
DOI: 10.1120/jacmp.v15i4.4360
ISSN: 1526-9914
Subjects: Australian and New Zealand Standard Research Classification > PHYSICAL SCIENCES (020000) > OTHER PHYSICAL SCIENCES (029900) > Medical Physics (029903)
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2014 The Author(s)
Deposited On: 18 Feb 2014 22:43
Last Modified: 17 Oct 2016 08:47

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