A novel flood source used for the MTF determination in SPECT systems

dc.contributor.author	Φούντος, Γεώργιος Π.	el
dc.contributor.author	Ζαγκλής, Α.	el
dc.contributor.author	Μιχαήλ, Χρήστος Μ.	el
dc.contributor.author	Καλατζής, Ιωάννης	el
dc.contributor.author	Σαμαρτζής, Α.	el
dc.date.accessioned	2015-01-30T16:17:21Z
dc.date.available	2015-01-30T16:17:21Z
dc.date.issued	2015-01-30
dc.identifier.uri	http://hdl.handle.net/11400/5154
dc.rights	Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/us/	*
dc.source	http://e-jst.teiath.gr/	en
dc.subject	Film
dc.subject	Ταινία
dc.subject	SPECT
dc.subject	99mTc(III)-DMSA
dc.subject	MTF
dc.subject	LSF
dc.subject	Flood source
dc.title	A novel flood source used for the MTF determination in SPECT systems	en
heal.type	journalArticle
heal.generalDescription	Special issue: Scientific papers presented on the 3nd International Conference on Experiments/Process/System Modeling/Simulation & Optimization in Athens, 8-11 July, 2009. Mini symposium on Medical Imaging, organized by G. Panayiotakis, I. Kandarakis, G. Fountos and I. Valais	en
heal.classification	Science
heal.classification	Physics
heal.classification	Επιστήμες
heal.classification	Φυσική
heal.classificationURI	http://zbw.eu/stw/descriptor/15685-2
heal.classificationURI	http://zbw.eu/stw/descriptor/15669-0
heal.classificationURI	N/A-Επιστήμες
heal.classificationURI	N/A-Φυσική
heal.contributorName	Κάβουρας, Διονύσης Α.	el
heal.contributorName	Κουνάδη, Ε.	el
heal.contributorName	Βαλσαμάκη, Π.	el
heal.contributorName	Κανδαράκης, Ιωάννης Σ.	el
heal.contributorName	Γεραλή, Σ.	el
heal.contributorName	Νικηφορίδης, Γεώργιος Χ.	el
heal.language	en
heal.access	free
heal.recordProvider	Τεχνολογικό Εκπαιδευτικό Ίδρυμα Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Tμήμα Μηχανικών Βιοϊατρικής Τεχνολογίας	el
heal.publicationDate	2010
heal.bibliographicCitation	Fountos, G.P., Zanglis, A., Michail, C.M., Kalatzis, I., Samartzis, A., et al. (2010). A novel flood source used for the MTF determination in SPECT systems. "e-Journal of Science & Technology". [Online] 5(2): 1-6. Available from: http://e-jst.teiath.gr/	en
heal.abstract	The Modulation Transfer Function (MTF) is an important parameter for the characterization of the signal transfer properties and image quality of a single photon emission computed tomography (SPECT) system. MTF can be derived by determining the line spread function (LSF) from images of a flood source. The method presented here is novel and easy to implement, requires materials commonly found in clinical practice, is robust to aliasing. Furthermore, since this technique is based on the LSF method, reduces measurement noise levels due to greater data averaging than conventional Point Spread Function (PSF)-integration techniques. In an effort to prepare easily, cheaply and reproducibly a Tc-99m-based flood source (Eγ=140 keV), various combinations of films and radiopharmaceuticals were tried. Excellent results were obtained by immersing an Agfa MammoRay HDR Medical X-ray film in a solution of dithiothreitol (DTT, 10-3 M)/Tc-99m(III)-DMSA (DMSA:Trivalent Technetium-99m-dimercapto-succinic acid, 40 mCi/40 mL) for 30-45 min in the dark. These films exhibited high integral uniformity (CV <1.9%). All imaging experiments were performed in a Siemens e-Cam γ-camera.	en
heal.publisher	Νερατζής, Ηλίας	el
heal.publisher	Σιανούδης, Ιωάννης	el
heal.publisher	Βαλαής, Ιωάννης Γ.	el
heal.publisher	Φούντος, Γεώργιος Π.	el
heal.journalName	e-Journal of Science & Technology	en
heal.journalName	e-Περιοδικό Επιστήμης & Τεχνολογίας	el
heal.journalType	peer-reviewed
heal.fullTextAvailability	true