Bugby_2021_Phys._Med._Biol._66_045031.pdf (1.11 MB)

Stereoscopic portable hybrid gamma imaging for source depth estimation

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journal contribution
posted on 16.03.2021, 09:04 by Sarah Bugby, John Lees, William McKnight, Numan Dawood
Advances in gamma imaging technology mean that is now technologically feasible to conduct stereoscopic gamma imaging in a hand-held unit. This paper derives an analytical model for stereoscopic pinhole imaging which can be used to predict performance for a wide range of camera configurations. Investigation of this concept through Monte Carlo and benchtop studies, for an example configuration, shows camera-source distance measurements with a mean deviation between calculated and actual distances of <5 mm for imaging distances of 50 mm to 250 mm. By combining this technique with stereoscopic optical imaging, we are then able to calculate the depth of a radioisotope source beneath a surface without any external positional tracking. This new hybrid technique has the potential to improve surgical localisation in procedures such as sentinel lymph node biopsy.

Funding

Science and Technologies Facilities Council (STFC) grants – CLASP ST/M007820/1 and FoF ST/S000135/1 – and fellowship – ST/R00501X/1

Scholarship programme from Baghdad University, Ministry of Higher Education and Scientific Research, Iraq (2015- 2019)

Leicester Royal Infirmary, University Hospitals of Leicester NHS Trust

History

School

  • Science

Department

  • Physics

Published in

Physics in Medicine and Biology

Volume

66

Issue

4

Publisher

IOP Publishing

Version

VoR (Version of Record)

Rights holder

© 2021 Institute of Physics and Engineering in Medicine

Publisher statement

This is an Open Access Article. It is published by IOP under the Creative Commons Attribution 4.0 Unported Licence (CC BY). Full details of this licence are available at: http://creativecommons.org/licenses/by/4.0/

Acceptance date

05/01/2021

Publication date

2021-02-11

Copyright date

2021

ISSN

0031-9155

eISSN

1361-6560

Language

en

Depositor

Dr Sarah Bugby. Deposit date: 5 January 2021

Article number

045031

Licence

Exports

Loughborough Publications

Categories

Licence

Exports