BrachyView: Tomographic reconstruction using Timepix detectors in post-implant dosimetry checks for permanent prostate brachytherapy implants

Author

Loo, Kevin J. ; Petasecca, Marco ; Safavi-Naeni, Mitra ; Han, Zhu ; Lerch, Martin ; Bucci, Joseph ; Jakubek, Jan ; Zemlicka, Jan ; Meikle, Steven ; Zaider, Marco ; Rosenfeld, Avi

Author_Institution

Inst. of Exp. & Appl. Phys., Czech Tech. Univ. in Prague, Prague, Czech Republic

fYear

2013

fDate

Oct. 27 2013-Nov. 2 2013

Firstpage

1

Lastpage

3

Abstract

Computed tomography imaging is a mandatory part of the permanent prostate brachytherapy procedure. It is used as a post-implant dosimetric check to evaluate the quality of the implant. It is proposed that by using a novel assembly of multiple high-resolution pixelated detectors Timepix, an in-body probe can be used as a multi-modality imaging device. Preliminary phantom studies of a PMMA prostate phantom with implanted dummy I-125 seeds (Oncura Model 6711) have shown a qualitative confirmation of three-dimensional tomographic reconstruction from limited angles and limited field of view based on iterative reconstruction algorithms.

Keywords

brachytherapy; computerised tomography; dosimetry; image reconstruction; iterative methods; medical image processing; phantoms; BrachyView; Oncura Model 6711; PMMA prostate phantom; Timepix detectors; computed tomography imaging; implant quality; implanted dummy I-125 seeds; in-body probe; iterative reconstruction algorithms; limited angles; limited field of view; multimodality imaging device; multiple high-resolution pixelated detector; permanent prostate brachytherapy implants; permanent prostate brachytherapy procedure; post-implant dosimetric check; preliminary phantom studies; qualitative confirmation; three-dimensional tomographic reconstruction; Brachytherapy; Computed tomography; Image reconstruction; Implants; Phantoms;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2013 IEEE

Conference_Location

Seoul

Print_ISBN

978-1-4799-0533-1

Type

conf

DOI

10.1109/NSSMIC.2013.6829455

Filename

6829455