PET | Evaluation of Database Comparison Methods for 18F-FDG Brain
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작성자 : 서울대 핵의학과 작성일2017-02-02 조회2,836회관련링크
본문
PET/CT
Department of Nuclear Medicine, Seoul National University Hospital, Seoul, Korea
Yong Ho Do . Hong Jae Lee . Jin Eui Kim
[Purpose] Various database comparison methods(DCM) are used for analyzing functional neuro-imaging. It is possible to statistically evaluate decreased or increased metabolism of abnormal patient's brain by comparing with normal database in DCM. And results of DCM are additionally used for easily explaining defect region. The aim of this study was to evaluate usefulness of Statistical Parametic Mapping(SPM) and Scenium.
[Material and Method] Data of 15 patients(63.02±15.03 year) underwent 18F-FDG brain PET/CT were collected and analyzed. Biograph TruePoint 40 with TrueV, (Siemens) was used as a PET/CT scanner. Scenium(version 4.0) in Syngo.via(version VA30A) and SPM99 were applied for statistical evaluation. Preference test and coherency between report from image reading and result of DCM were evaluated by 5 nuclear medicine physicians through a questionnaire survey. And average required time for generating result of SPM99 and Scenium was compared by 3 medical technologists.
[Results] Coherency from the result of SPM99 and Scenoum showed 84% and 88% compare to report of image reading. Scenoum acquired higher score than SPM99 in preference test. Average required
time of SPM99 and Scenium took 282 seconds and 116 seconds to generate result. And run-time of
Scenium took 58.8% shorter than SPM99.
[Conclusion] Results of SPM99 and Scenium showed coherency compare to report of image reading.. Various parameters can be controled by user when using SPM. However, normal database needs to be acquired. And it takes significant amount of time and effort for the first set up. On the other hand, Scenium provides normal database even though modifiable parameters are limited. Therefore, more informations could be provided for brain PET/CT if properly understanding and selecting each DCM.
[Key Words] Brain PET/CT, Neuro-imaging, SPM, Scenium