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Correlation of PET/CT Standardized Uptake Value Measurements Between Dedicated Workstations and a PACS-Integrated Workstation System

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Purpose

This study was conducted to evaluate the clinical utility of a Positron Emission Tomography/Computed Tomography (PET/CT) analysis module of a picture archiving communication system (PACS) workstation in comparison to a dedicated PET/CT interpretation workstation.

Materials and Methods

The study included 32 consecutive patients referred for an [18F] Fluro-2-Deoxy-D-Glucose (18F-FDG) PET/CT at our institution. Images were reviewed at dedicated PET/CT and at PACS-integrated workstations. Mean standardized uptake values (SUVs) were calculated for the liver and the lung. Maximum SUVs were recorded for the bladder and an index lesion with the highest FDG uptake. The time spent for SUV measurements was recorded. Correlation of the SUV measurements was calculated with the Pearson coefficient.

Results

Pearson coefficients between the workstations ranged from 0.96 to 0.99 for bladder and lesion maximum SUVs. For liver and lung average SUVs, the coefficients varied from 0.53 to 0.98. The mean time spent to perform the four SUV measurements was 122.6 s for the dedicated workstations and 134.6 s for the PACS-integrated system.

Conclusion

The correlation of SUV measurements between dedicated PET/CT and PACS-integrated workstations is very good, especially for maximum SUVs. For routine reading of PET/CT scans, a PACS workstation with a PET/CT analysis module offers an excellent alternative to the use of a dedicated PET/CT workstation.

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Authors and Affiliations

  1. Nuclear Medicine Service, Department of Radiology, Memorial Sloan-Kettering Cancer Center, 1275 York Avenue, New York, NY, 10021, USA

    Gustavo S. P. Meirelles & Timothy Akhurst M.D.

  2. Department of Medical Physics and Radiology, Memorial Sloan-Kettering Cancer Center, 1275 York Avenue, New York, NY, 10021, USA

    Peter Kijewski Ph.D.

Authors
  1. Gustavo S. P. Meirelles
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  2. Peter Kijewski Ph.D.
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  3. Timothy Akhurst M.D.
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Correspondence to Timothy Akhurst M.D..

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Meirelles, G.S.P., Kijewski, P. & Akhurst, T. Correlation of PET/CT Standardized Uptake Value Measurements Between Dedicated Workstations and a PACS-Integrated Workstation System. J Digit Imaging 20, 307–313 (2007). https://doi.org/10.1007/s10278-006-0861-8

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  • DOI: https://doi.org/10.1007/s10278-006-0861-8

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