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Year : 2017  |  Volume : 24  |  Issue : 2  |  Page : 121-127

Hybrid single-photon emission computed tomography-computed tomography: A review of literature

1 Department of Radiology, Nuclear Medicine Unit, Usmanu Danfodiyo University Teaching Hospital, Sokoto, Nigeria
2 Department of Radiology, Nuclear Medicine Unit, University of Maiduguri Teaching Hospital, Maiduguri, Nigeria
3 Department of Radiology, Nuclear Medicine Unit, Ahmadu Bello University Teaching Hospital, Zaria, Nigeria
4 Department of Nuclear Medicine, National Hospital, Abuja, Nigeria

Correspondence Address:
Garba Haruna Yunusa
Department of Radiology, Nuclear Medicine Unit, Usmanu Danfodiyo University Teaching Hospital, Sokoto
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DOI: 10.4103/wajr.wajr_5_17

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The use of hybrid imaging consisting of single-photon emission computed tomography (SPECT) and X-ray transmission computed tomography (CT) scan has the advantage of providing functional and morphologic information for a given lesion or pathology in a single session. Internet search of PubMed and Google Scholar databases was undertaken. Key phrases searched were SPECT-CT and lesion categorization or characterization. Studies considered for review include a comparison of SPECT-CT versus SPECT scintigraphy, SPECT-CT versus SPECT versus planar scintigraphy, and SPECT-CT in patients with indeterminate lesions on conventional scintigraphy either for benign or malignant conditions. Fusion of functional information obtained from radionuclide imaging with morphologic information obtained from X-ray CT has improved lesion localization, characterization, and observer confidence. It has been shown to change patient management.

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