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Investigation of an SFOV hybrid gamma camera for thyroid imaging

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journal contribution
posted on 13.09.2016, 14:40 by S. L. Bugby, John E. W. Lees, A. H. Ng, M. S. Alqahtani, A. C. Perkins
The Hybrid Compact Gamma Camera (HCGC) is a small field of view (SFOV) portable hybrid gamma-optical camera intended for small organ imaging at the patient bedside. In this study, a thyroid phantom was used to determine the suitability of the HCGC for clinical thyroid imaging through comparison with large field of view (LFOV) system performance. A direct comparison with LFOV contrast performance showed that the lower sensitivity of the HCGC had a detrimental effect on image quality. Despite this, the contrast of HCGC images exceeded those of the LFOV cameras for some image features particularly when a high-resolution pinhole collimator was used. A clinical simulation showed that thyroid morphology was visible in a 5 min integrated image acquisition with an expected dependency on the activity within the thyroid. The first clinical use of the HCGC for imaging thyroid uptake of ¹²³I is also presented. Measurements indicate that the HCGC has promising utility in thyroid imaging, particularly as its small size allows it to be brought into closer proximity with a patient. Future development of the energy response of the HCGC is expected to further improve image detectability.

History

Citation

Physica Medica, 2016, 32 (1), pp. 290-296

Author affiliation

/Organisation/COLLEGE OF SCIENCE AND ENGINEERING/Department of Physics and Astronomy

Version

VoR (Version of Record)

Published in

Physica Medica

Publisher

Elsevier

issn

1120-1797

eissn

1724-191X

Acceptance date

03/12/2015

Copyright date

2016

Available date

13/09/2016

Publisher version

http://www.sciencedirect.com/science/article/pii/S1120179715010443

Language

en

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