A method is proposed to synchronize positron emission tomography (PET) list-mode data with an externally recorded respiratory signal in the absence of a master clock. When the respiratory signal reaches a user-defined threshold, a trigger mark is stored in the list-mode file. After the acquisition, synchronization is achieved when the stored trigger marks are superimposed on the respiratory curve to form a horizontal line over time at the user-defined threshold. Synchronization was possible and unequivocal for ten out of ten clinical studies. The list-mode acquisition actually started approximately 40 and 4 s after acquisition initiation at the user interface of the Philips Gemini and the GE DLS PET-CT systems, respectively.

Medical Physics, aBelvoir Park Hospital bRoyal Victoria Hospital, Belfast, UK Abstracts of the 34th Annual Meeting of the British Nuclear Medicine Society Manchester International Conference Centre, UK, 27–29 March 2006

Hatt, M.a; Boussion, N.a; Carson, K.b; Jarritt, P.b; Lamare, F.a; Bizais, Y.a; Cheze le Rest, C.a; Visvikis, D.a Author Information

Visvikis, D.a; Turzo, A.a; Barret, O.b; Fryer, T.D.b; Carson, K.c; Bizais, Y.a; Jarritt, P.; Cheze Le Rest, C.a Author Information

CommentaryPET technology: current trends and future developmentsD Visvikis, C Cheze-Le Rest and P JarrittD Visvikis1INSERM U650, Laboratoire de Traitement de l'Information Medicale (LATIM), CHU Morvan, 5 avenue Foch, 29609 Brest, France, 2Department of Nuclear Medicine, University Hospital Brest, Brest, France and 3Northern Ireland Regional Medical Physics Agency, Royal Victoria Hospital, Belfast, UKSearch for more papers by this author, C Cheze-Le Rest1INSERM U650, Laboratoire de Traitement de l'Information Medicale (LATIM), CHU Morvan, 5 avenue Foch, 29609 Brest, France, 2Department of Nuclear Medicine, University Hospital Brest, Brest, France and 3Northern Ireland Regional Medical Physics Agency, Royal Victoria Hospital, Belfast, UKSearch for more papers by this author and P Jarritt1INSERM U650, Laboratoire de Traitement de l'Information Medicale (LATIM), CHU Morvan, 5 avenue Foch, 29609 Brest, France, 2Department of Nuclear Medicine, University Hospital Brest, Brest, France and 3Northern Ireland Regional Medical Physics Agency, Royal Victoria Hospital, Belfast, UKSearch for more papers by this authorPublished Online:13 Feb 2014https://doi.org/10.1259/bjr/32045866SectionsPDF/EPUBFull Text ToolsAdd to favoritesDownload CitationsTrack Citations ShareShare onFacebookTwitterLinked InEmail About References 1 Bomanji JB, Costa DC, Ell PJ. 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