Development of a small field of view gamma camera for medical imaging

Conference Paper

Jambi, L.K. . 2016

• نوع عمل المنشور: Electronic poster
• رابط المنشور على الويب: http://dx.doi.org/10.1594/ecr2016/C-2206
• اسم المؤتمر: ECR European Congress of Radiology 2016
• عنوان المؤتمر: Vienna
• تاريخ المؤتمر: الأربعاء, آذار (مارس) 2, 2016
• المنظمة الراعية: European Society of Radiology

مستخلص المنشور

Purpose: The development of small field of view (SFOV) gamma cameras for intraoperative imaging is an expanding area of research. Combining gamma and optical imaging in a co-aligned configuration is a new concept that could provide high spatial resolution imaging and enhance localisation during critical surgical procedures such as in head and neck biopsies.
 
Methods and materials: The Hybrid Compact Gamma Camera (HCGC) is a new technology, developed in Space Research Centre, University of Leicester in collaboration with Queens Medical Centre, University of Nottingham, for hybrid gamma-optical imaging.
 
A performance characterisation of the HCGC has been completed using a columnar CsI(TI) and a pixelated gadolinium oxysulfide (GOS) ceramic scintillator. Characteristics investigated include spatial resolution, uniformity, sensitivity and count rate capability.
 
Results: The performance characterisation allowed for quantitative comparisons of HCGC with different scintillators installed.  System spatial resolution, for example, was ~1.8mm for the CsI(TI) and ~2.0mm for the GOS scintillator. The anatomical context provided by the optical camera aids the physical localisation of radiopharmaceutical uptake.
 
Conclusion: The performance characteristics of the HCGC illustrate its capability to be used in a range of healthcare applications; diagnosis, surgical investigation and the visualisation of drug delivery. Fused gamma and optical images should be ideally suited for intraoperative imaging. These studies encourage us to carry out further evaluation in preparation for its use in a surgical theatre setting.