Elimination of motion and pulsation artifacts using BLADE sequences in knee MR imaging

dc.contributor.author	Λαβδάς, Ελευθέριος	el
dc.contributor.author	Μαυροειδής, Παναγιώτης	el
dc.contributor.author	Χατζηγεωργίου, Βασιλική	el
dc.contributor.author	Ροκά, Βιολέτα	el
dc.contributor.author	Αρικίδης, Νικόλαος Σ.	el
dc.date.accessioned	2015-01-16T21:09:33Z
dc.date.available	2015-01-16T21:09:33Z
dc.date.issued	2015-01-16
dc.identifier.uri	http://hdl.handle.net/11400/4144
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://www.elsevier.com/	en
dc.subject	Τα παράσιτα κίνησης
dc.subject	Αντικείμενα παλμών
dc.subject	Εξέταση του γόνατος
dc.subject	Motion artifacts
dc.subject	Pulsation artifacts
dc.subject	Knee examination
dc.title	Elimination of motion and pulsation artifacts using BLADE sequences in knee MR imaging	en
heal.type	journalArticle
heal.classification	Medicine
heal.classification	Radiology, Medical
heal.classification	Ιατρική
heal.classification	Ακτινολογία, Ιατρική
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh00006614
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh85110777
heal.classificationURI	N/A-Ιατρική
heal.classificationURI	N/A-Ακτινολογία, Ιατρική
heal.contributorName	Οικονόμου, Γεωργία	el
heal.contributorName	Ανδριανόπουλος, Κωνσταντίνος	el
heal.contributorName	Νοταράς, Ιωάννης	el
heal.identifier.secondary	DOI:10.1016/j.mri.2012.04.001
heal.language	en
heal.access	campus
heal.recordProvider	Τεχνολογικό Εκπαιδευτικό Ίδρυμα Αθήνας.Σχολή Επαγγελμάτων Υγείας και Πρόνοιας.Τμήμα Ραδιολογίας και Ακτινολογίας.	el
heal.publicationDate	2012-10
heal.bibliographicCitation	Lavdas, E., Mavroidis, P., Hatzigeorgiou, V., Roka, V., Arikidis, N., et al. (2012). Elimination of motion and pulsation artifacts using BLADE sequences in knee MR imaging. "Magnetic Reasonance Imaging". 30 (8), p. 1099-1110.	en
heal.abstract	The purpose of this study is to evaluate the ability of proton density (PD)-BLADE sequences in reducing or even eliminating motion and pulsatile flow artifacts in knee magnetic resonance imaging examinations. Eighty consecutive patients, who had been routinely scanned for knee examination, participated in the study. The following pairs of sequences with and without BLADE were compared: (a) PD turbo spin echo (TSE) sagittal (SAG) fat saturation (FS) in 35 patients, (b) PD TSE coronal (COR) FS in 19 patients, (c) T2 TSE axial in 13 patients and (d) PD TSE SAG in 13 patients. Both qualitative and quantitative analyses were performed based on the signal-to-noise ratio (SNR), contrast-to-noise ratio (CNR) and relative contrast (ReCon) measures of normal anatomic structures. The qualitative analysis was performed by experienced radiologists. Also, the presence of image motion and pulsation artifacts was evaluated. Based on the results of the SNR, CRN and ReCon for the different sequences and anatomical structures, the BLADE sequences were significantly superior in 19 cases, whereas the corresponding conventional sequences were significantly superior in only 6 cases. BLADE sequences eliminated motion artifacts in all the cases. However, motion artifacts were shown in (a) six PD TSE SAG FS, (b) three PD TSE COR FS, (c) three PD TSE SAG and (d) two T2 TSE axial conventional sequences. In our results, it was found that, in PD FS sequences (sagittal and coronal), the differences between the BLADE and conventional sequences regarding the elimination of motion and pulsatile flow artifacts were statistically significant. In all the comparisons, the PD FS BLADE sequences (coronal and sagittal) were significantly superior to the corresponding conventional sequences regarding the classification of their image quality. In conclusion, this technique appears to be capable to potentially eliminate motion and pulsatile flow artifacts in MR images.	en
heal.publisher	Elsevier Science Ltd	en
heal.journalName	Magnetic Resonance Imaging	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true