1. Investigation of an SFOV hybrid gamma camera for thyroid imaging
- Author
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S.L. Bugby, Alan C. Perkins, A.H. Ng, Mohammed S. Alqahtani, and John E. Lees
- Subjects
Diagnostic Imaging ,Image quality ,media_common.quotation_subject ,Thyroid Gland ,Biophysics ,Contrast Media ,General Physics and Astronomy ,Physics and Astronomy(all) ,Imaging phantom ,030218 nuclear medicine & medical imaging ,law.invention ,Iodine Radioisotopes ,03 medical and health sciences ,0302 clinical medicine ,law ,Image Processing, Computer-Assisted ,medicine ,Humans ,Image acquisition ,Contrast (vision) ,Gamma Cameras ,Radiology, Nuclear Medicine and imaging ,Thyroid scintigraphy ,Radionuclide Imaging ,media_common ,Gamma camera ,SFOV gamma camera ,Large field of view ,Phantoms, Imaging ,business.industry ,Thyroid ,Reproducibility of Results ,Technetium ,Equipment Design ,General Medicine ,Imaging thyroid ,medicine.anatomical_structure ,Radiology Nuclear Medicine and imaging ,030220 oncology & carcinogenesis ,Image contrast ,Nuclear medicine ,business ,Biomedical engineering - Abstract
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 123 I 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.
- Published
- 2016