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Stereoscopic portable hybrid gamma imaging for source depth estimation

journal contribution
posted on 07.01.2021, 12:17 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

Publisher

IOP Publishing

Version

AM (Accepted Manuscript)

Publisher statement

This is an author-created, un-copyedited version of an article accepted for publication in Physics in Medicine and Biology. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at [insert DOI]

Acceptance date

05/01/2021

ISSN

0031-9155

eISSN

1361-6560

Language

en

Depositor

Dr Sarah Bugby. Deposit date: 5 January 2021

Exports

Loughborough Publications

Categories

Exports