• Title/Summary/Keyword: SUVm

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Study of SUVm Cut-off Value for the Distinction of Pancreatic Cancer In PET/CT Exam (PET/CT 검사에서 췌장암 판별을 위한 SUVm 경계값 연구)

  • Chang, Boseok;Kim, Jae Ho;Liu, Guoxu;Jang, Eun Sung
    • The Journal of the Korea Contents Association
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    • v.17 no.10
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    • pp.567-575
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    • 2017
  • In this study, when diagnosis pancreatic cancer by dual time point PET/CT, we propose SUVm 2.52 as the threshold value for performing the dual time point PET/CT exam. The hypothesis of normal distribution was adopted through data conversion of 60 pancreatic diseases. The proposed SUVm2.52 boundary value showed a significance level that could be applied to both 120 and 180 minutes of delay time scan for pancreatic cancer determination (p<0.05). C-value variation shows that delay time 2 hour test is more useful than delay time 3 hour test. When the SUVm 2.52 is set to the boundary value and the double-time point PET/CT exam is performed, the probability of distinguishing cancer from inflammation in the delayed image is 95%. When the delayed test is performed with the proposed boundary value SUVm 2.52, Compared with general PET / CT scans, it is thought that it may be helpful to distinguish pancreatic cancer.

Optimal Scan time Analysis for Pancreatic Cancer Distinction in Dual time PET-CT Exam (이중시간 PET/CT 검사에서 췌장암 판별을 위한 최적의 Scan time 분석)

  • Chang, Boseok
    • Journal of the Korean Society of Radiology
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    • v.13 no.2
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    • pp.305-311
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    • 2019
  • In this study, present the most useful delay scan time by statistical analysis of SUVm data for 30 suspected pancreatic cancer patients. Two statistical analysis and a mathematical model was applied to the theoretical formula by glucose and insulin mechanics, and a mathematical model was created. Statistical analysis was performed via Metlab p/g. Optimal delay scan time was suggested by Metlab p/g for the change of SUV value over time.In this study, for diagnosis pancreatic cancer by dual time point PET/CT, propose optimal delay scan time 131.5 minuts. The proposed delay scan time showed statistical reliability applicable to the diagnosis of pancreatic cancer (p<0.05). Delayed scanning with the suggested delay scan time of 131.5 minutes is considered to be useful for the diagnosis of pancreatic cancer compared to general PET / CT scan.hen the delayed test is performed with the proposed delay scan time 131.5 minuts, Compared with general PET/CT scans.