The integration of PET-CT scans from different hospitals into radiotherapy treatment planning

Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology
Michel ÖllersDirk De Ruysscher

Abstract

To integrate PET-CT scans from different hospitals into radiotherapy treatment planning. A cylindrical phantom with spheres of different diameters was scanned on three different Siemens Biograph PET-CT scanners in three hospitals. The spheres and cylinder were filled with 18F-FDG such that different sphere-to-background (S/B) ratios were obtained. Scans were analyzed using dedicated software for automated delineation based on standardized uptake value (SUV) and using different reconstruction parameters. SUV thresholding curves for different S/B ratios were obtained for the different scanners. Differences in SUV auto-contouring thresholds were found to be significant for PET-CT simulators from different radiotherapy and nuclear medicine departments. A change in PET reconstruction parameters showed a significant effect on the results. Synchronization of PET-CT imaging protocols between cooperating hospitals is important for reliable determination of SUV auto-contouring thresholds. Whenever this goal has been achieved automated SUV delineation based on a S/B ratio using PET-CT images from different institutions can reliably be performed using individually determined threshold curves.

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Citations

Apr 7, 2010·European Journal of Nuclear Medicine and Molecular Imaging·Judith van LoonPhilippe Lambin
Jan 12, 2011·European Journal of Nuclear Medicine and Molecular Imaging·Wouter van ElmptMichel Ollers
Jan 13, 2011·European Journal of Nuclear Medicine and Molecular Imaging·Mathieu HattDimitris Visvikis
Jun 6, 2012·Oxidative Medicine and Cellular Longevity·Hongying PanYajun Chen
Aug 29, 2012·Oxidative Medicine and Cellular Longevity·Edite Teixeira de LemosFlávio Reis
Sep 12, 2012·Oxidative Medicine and Cellular Longevity·Richard J BloomerTyler M Farney
Nov 11, 2011·Journal of Thoracic Oncology : Official Publication of the International Association for the Study of Lung Cancer·Erik RoelofsUNKNOWN ROCOCO Consortium
Aug 18, 2012·Magnetic Resonance Imaging·Virendra KumarRobert J Gillies
Nov 2, 2011·Cancer radiothérapie : journal de la Société française de radiothérapie oncologique·M HattO Pradier
May 17, 2011·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Jørgen van den BogaardMichel C Ollers
Dec 24, 2010·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Ruud G P M van StiphoutPhilippe Lambin
Jan 22, 2011·Zeitschrift für medizinische Physik·Barbara KnäuslDietmar Georg
Sep 25, 2010·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Erik RoelofsPhilippe Lambin
Aug 17, 2010·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·John A Lee
Aug 24, 2010·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Arturo ChitiVincent Grégoire
Aug 17, 2010·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Vincent Gregoire, Arturo Chiti
Jul 27, 2010·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Dirk De Ruysscher, Carl-Martin Kirsch
Feb 24, 2010·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Marco H M JanssenGuido Lammering
Feb 2, 2010·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Marco H M JanssenGuido Lammering
Jan 19, 2010·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Marco H M JanssenGuido Lammering
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Dec 7, 2013·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Erik RoelofsPhilippe Lambin
Dec 4, 2014·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Ruud G P M van StiphoutPhilippe Lambin
Mar 8, 2011·International Journal of Radiation Oncology, Biology, Physics·Marco H M JanssenGuido Lammering
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