http://www.cnr.it/ontology/cnr/individuo/prodotto/ID10241

A simplified method to integrate metabolic images in stereotactic procedures using a PET-CT scanner (Articolo in rivista)

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A simplified method to integrate metabolic images in stereotactic procedures using a PET-CT scanner (Articolo in rivista) (literal)

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Picozzi P. 1, Rizzo G. 3, Landoni C. 2,4, Attuati L. 1, Franzin A. 1, Messa C. 2,3,4, Ferrari da Passano C. 1, Bettinardi V. 2, Fazio F. 2,3,4, (2005)
A simplified method to integrate metabolic images in stereotactic procedures using a PET-CT scanner
in Stereotactic and functional neurosurgery
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

Picozzi P. 1, Rizzo G. 3, Landoni C. 2,4, Attuati L. 1, Franzin A. 1, Messa C. 2,3,4, Ferrari da Passano C. 1, Bettinardi V. 2, Fazio F. 2,3,4, (literal)

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E stato sviluppato un metodo per la coregistrazione di immagini PET a immagini CT con caschetto stereotassico. Il metodo è sviluppato su tomografo integrato PET/CT e richiede il solo uso di marcatori CT. In tal modo la procedura risulta semplificata, poiché non è necessario riempire di soluzione radioattiva i marker stereotassici. (literal)

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1. Departments of Neurosurgery, IRCCS, Ospedale San Raffaele, Milan, Italy 2. Nuclear Medicine, IRCCS, Ospedale San Raffaele, Vita Salute University, Milan, Italy 3. Institute of Molecular Bioimaging and PhysiologyCNR, Segrate (MI), Italy 4. University of Milano-Bicocca, Milan, Italy (literal)

Titolo

A simplified method to integrate metabolic images in stereotactic procedures using a PET-CT scanner (literal)

Abstract

We have developed a method that needs only the computed tomography (CT) indicator box to coregister positron emission tomography (PET) images and integrates this information with magnetic resonance imaging. The study was performed using a PET/CT scanner. A standard CT bed adapter was attached to the scanner couch. Then, the patient, with the Leksell G frame fixed, was positioned into the scanner with the CT indicator box. PET images were acquired using either [18F]fluorodeoxyglucose or [11C]choline as radioisotopes. After acquisition, CT and PET images were exported in DICOM 3 standard and transferred to a dedicated workstation via data link. Homemade software was implemented for multimodal image fusion. PET images were overwritten to their corresponding CT point values using a threshold algorithm, maintaining the stereotactic CT markers. The use of a CT indicator simplifies the procedure, because there is no need for a radioactive solution filling the indicator box. This method was tested first using a phantom and then in patients. The localization accuracy of the PET images is limited only by the slice thickness. (literal)

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