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ISSN : 1229-6783(Print)
ISSN : 2288-1484(Online)
Journal of the Korea Safety Management & Science Vol.15 No.4 pp.427-433
DOI : https://doi.org/10.12812/ksms.2013.15.4.427

NEMA IEC Body Phantom을 이용한 18F-FDG PET/CT 영상의 왜곡 평가

박 준 철*, 양 한 준**
*안산대학교 방사선과
**한림국제대학원대학교 국제방사선학과

Evaluation of 18F-FDG PET/CT Image Distortion by NEMA IEC Body Phantom

Yang hanjoon**, Park jooncheol*
**Dept. of International Radiological Sciences.
*Dept. of Radiological Technology
Received September 6, 2013; Revision Received December 10, 2013; Accepted December 10, 2013.

Abstract

Recently, 18F-FDG PET based CT scan was a critical examination that the after, before plan diagnosis andtreatment of tumors. But, due to the distortion of SUV that should be proportional to the metabolic rate ofglucose in the tumor, the other measurement methods are being on study. In this study, compared the degreeof distortion of SUV that according to the volume of the tumor analysis ROI and VOI using the NEMA IECPhantom. The results, the SUVmax, mean value are rapidly decreased with threshold value 500 mm2 interval ofthe ROI analysis, 1500 mm3 interval of the VOI analysis. When compared SUVmax value SUVmean, ROI andVOI analysis VOI measurements was 1.077 times higher SUVmax was 0.981 times highe compared to thevalue of the ROI measurement. Compare MTV, SUV 2.0 as measured by the volume of the VOI to Volumeshowed a slightly higher results(Volume / MTV = 93.4 % ±14.8 %). Considering the above results, Tumorevaluation by 18F-FDG PET / CT scan Consider each threshold value should be analyzed due to larger SUV'sDistortion depending on the size of the tumor. VOI analysis is recommended. because it showed the VOI analysisis higher than the ROI analysis SUVmax and lower SUVmean due to VOI analysis than once as a measure ofthe wider area as measured ROI analysis. MTV (R2 = 0.999), a result close to the actual size of the tumor. but,more research is needed in this regard, because SUV according to the standards of value are affected.Keywords :18F-FDG PET/CT, NEMA IEC Phantom, SUVmax, SUVmean, MTV
18F-FDG PET/CT,NEMA IEC Phantom,SUVmax,SUVmean,MTV
0060-01-0015-0004-49.pdf487.3KB

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