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Submitted: 14 February 2009 Modified: 03 May 2017
HERDIN Record #: PCHRD021309070218

Clinical utility of SPECT-CT co-registration imaging.

1Vincent Peter C. Magboo,
2Gerard F. Goco
Department of Nuclear Medicine - St. Luke's Medical Center,
University of the Philippines-Manila

Abstract

The interpretation of nuclear medicine studies is largely based on function. However, this interpretation becomes more accurate and reliable when there is a corresponding precise anatomical localization. Hybrid systems are opening up a new era in SPECT imaging. A tertiary hospital in the Philippines has acquired the country's first hybrid imaging device combining a dual-detector, variable angle gamma camera with a low dose X-ray tube attached to the same gantry. This study evaluates the clinical utility of a hybrid imaging system, SPECT/CT for functional mapping with selected radiotracers. SPECT data were first interpreted alone and then re-assessed with the addition of SPECT/CT co-registered images. Patients referred for various nuclear medicine procedures with SPECT components in the first six months of operation studied for various clinical situations were evaluated in the study. Our study included sixty-four (64) patients in the first year of operation of SPECT/CT co-registered imaging systems. This included 23 with I-131, six with sulfur colloid, four with Gallium 67, five with Tc99m Sestamibi and 26 with Tc99m HOP. The pathologic sites in 28 out of 64 (44 percent) patients were noted in both SPECT and SPECT/CT co-registered images. Additionally, SPECT/CT co-registered images provided the precise anatomical localization in 12 (19 percent) patients not clearly evident in SPECT images alone and enabled the exclusion of disease in sites of physiologic tracer deposition in 16 (25 percent) patients found suspicious in SPECT alone leading to a change in the therapeutic approach. SPECT/CT allows a more precise interpretation of scintigraphic studies using selected radiotracers for various clinical situations. It provides additional information that improves diagnostic accuracy of SPECT and impacts on patient management indicating that SPECT/CT co-registered systems are suited for routine use in clinical practice.

1.
Publication Type:
Journal
Publication Sub Type:
Clinical trials/Clinical investigations (RCT
Title:
The Philippine Journal of Nuclear Medicine
Frequency:
Annual
Publication Date:
January-December 2008
Volume:
3
Issue:
1
Page(s):
19-24
Publisher:
Philippine Society of Nuclear Medicine

LocationCall NumberAvailable FormatAvailability
Philippine Council for Health Research and Development Library Box No. 21 Fulltext pdf (Request Document)
1. Pelc, N J, von Schulthess, G K. "Integrated-modality imaging: the best of both worlds" Academic Radiology 9, 1241-1244, 2002 - [External Link]
2. Krausz, Y , Balan, A , Bocher, M . "Gamma camera-mounted anatomical X-ray tomography: technology, system characteristics and first images" European Journal of Nuclear Medicine 27, 619-627, 2000 - [External Link]