Improvement of image quality using BLADE sequences in
brain MR imaging

dc.contributor.author	Λαβδάς, Ελευθέριος	el
dc.contributor.author	Μαυροειδής, Παναγιώτης	el
dc.contributor.author	Κωστόπουλος, Σπυρίδων	el
dc.contributor.author	Γκλώτσος, Δημήτριος	el
dc.contributor.author	Ροκά, Βιολέτα	el
dc.date.accessioned	2015-01-19T09:14:31Z
dc.date.available	2015-01-19T09:14:31Z
dc.date.issued	2015-01-19
dc.identifier.uri	http://hdl.handle.net/11400/4227
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	Brain--Magnetic resonance imaging
dc.subject	Παράσιτα κίνησης
dc.subject	Εξέταση του εγκεφάλου
dc.subject	Μαγνητική τομογραφία εγκεφάλου
dc.subject	Motion artifacts
dc.subject	Brain examination
dc.title	Improvement of image quality using BLADE sequences in brain 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.keywordURI	http://id.loc.gov/authorities/subjects/sh2009117515
heal.contributorName	Τοπαλτζίκης, Θεόφιλος	el
heal.contributorName	Μπάκας, Αθανάσιος	el
heal.contributorName	Οικονόμου, Γεωργία	el
heal.contributorName	Παπανικολάου, Νικόλαος	el
heal.contributorName	Μπάτσικας, Γεώργιος Ε.	el
heal.contributorName	Καφφές, Ιωάννης	el
heal.contributorName	Κεχαγιάς, Δημήτριος	el
heal.identifier.secondary	DOI:10.1016/j.mri.2012.08.001
heal.language	en
heal.access	campus
heal.recordProvider	Τεχνολογικό Εκπαιδευτικό Ίδρυμα Αθήνας.Σχολή Επαγγελμάτων Υγείας και Πρόνοιας.Τμήμα Ραδιολογίας και Ακτινολογίας.	el
heal.publicationDate	2013-02
heal.bibliographicCitation	Lavdas, E., Mavroidis, P., Kostopoulos, S., Glotsos, D., Roka, V., et al. (2013). Improvement of image quality using BLADE sequences in brain MR imaging "Magnetic Resonance Imaging". 31 (2), p.189-200.	en
heal.abstract	The purpose of this study is to compare two types of sequences in brain magnetic resonance (MR) examinations of uncooperative and cooperative patients. For each group of patients, the pairs of sequences that were compared were two T2-weighted (T2-W) fluid attenuated inversion recovery sequences with different k-space trajectories (conventional Cartesian and BLADE) and two T2-TSE weighted with different k-space trajectories (conventional Cartesian and BLADE). Twenty-three consecutive uncooperative patients and 44 cooperative patients, who routinely underwent brain MR imaging examination, participated in the study. Both qualitative and quantitative analyses were performed based on the signal-to-noise ratio, 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 motion, other (e.g., Gibbs, susceptibility artifacts, phase encoding from vessels) artifacts and pulsatile flow artifacts was evaluated. In the uncooperative group of patients, BLADE sequences were superior to the corresponding conventional sequences in all the cases. Furthermore, the differences were found to be statistically significant in almost all the cases. In the cooperative group of patients, BLADE sequences were superior to the conventional sequences with the differences of the CNR and ReCon values in nine cases being statistically significant. Furthermore, BLADE sequences eliminated motion and other artifacts and T2 FLAIR BLADE sequences eliminated pulsatile flow artifacts. BLADE sequences (T2-TSE and T2 FLAIR) should be used in brain MR examinations of uncooperative patients. In cooperative patients, T2-TSE BLADE sequences may be used as part of the routine protocol and orbital examinations. T2 FLAIR BLADE sequences may be used optionally in examinations of AVM, orbits, haemorrhages, ventricular lesions, lesions in the frontal lobe, periventricular lesions, lesions in regions close to artifacts and lesions in posterior fossa	en
heal.publisher	Elsevier Science Ltd	en
heal.journalName	Magnetic Resonance Imaging	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true