Comparison of T1-weighted spin-echo and 3D T1-weighted multi-shot Echo Planar pulse sequences in imaging the brain at it

dc.contributor.author	Καραντάνας, Απόστολος	el
dc.contributor.author	Παπανικολάου, Νικόλαος	el
dc.contributor.author	Βάσιου, Αικατερίνη	el
dc.contributor.author	Λαβδάς, Ελευθέριος	el
dc.date.accessioned	2015-01-19T11:33:16Z
dc.date.available	2015-01-19T11:33:16Z
dc.date.issued	2015-01-19
dc.identifier.uri	http://hdl.handle.net/11400/4249
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	Comparative studies
dc.subject	Brain--Magnetic resonance imaging
dc.subject	Συγκριτική μελέτη
dc.subject	Μαγνητική τομογραφία εγκεφάλου
dc.title	Comparison of T1-weighted spin-echo and 3D T1-weighted multi-shot Echo Planar pulse sequences in imaging the brain at it	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-Ακτινοβολία, Ιατρική
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh99001486
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh2009117515
heal.identifier.secondary	DOI:10.1016/S0730-725X(99)00009-0
heal.language	en
heal.access	campus
heal.recordProvider	Τεχνολογικό Εκπαιδευτικό Ίδρυμα Αθήνας.Σχολή Επαγγελμάτων Υγείας και Πρόνοιας.Τμήμα Ραδιολογίας και Ακτινολογίας.	el
heal.publicationDate	1999-06
heal.bibliographicCitation	Karantanas, A.H., Papanikolaou, N., Vasiou, K., and Lavdas, E. (1999). Comparison of T1-weighted spin-echo and 3D T1-weighted multi-shot Echo Planar pulse sequences in imaging the brain at it. "Magnetic Resonance Imaging". 17 (5), p.663-668.	en
heal.abstract	The purpose of this study was to evaluate the ability of three dimensional T1-weighted multi-shot Echo Planar Imaging (3D T1w EPI) MR pulse sequence to provide comparable to T1w Spin Echo (SE) results in various diseases of the brain, during shorter acquisition times. Thirty-six patients (aged 30-74 years) with various indications were included in the study. All examinations were performed with a 1T MR scanner with a maximum gradient strength of 15 mT/m. The SE sequence lasted 3 min 50s and the 3D T1w EPI 59s. The quantitative analysis included number of enhancing lesions, signal-to-noise ratio of the enhancing lesions and contrast-to-noise ratio (CNR) between enhancing lesions and white matter in both sequences before and after i.v. administration of 0.1 mmol/kg gadopentetate dimeglumine. In addition, the percentage increase of enhancement was measured in each lesion of each sequence. The qualitative analysis included a) conspicuity of the lesions and b) presence of artifacts. The T1w SE sequence was significantly better compared to 3D T1w EPI in all quantitative measurements with the exception of CNR of enhancing lesions before contrast administration and the percentage enhancement. The conspicuity of the lesions did not differ between the two sequences. The EPI sequence presented with significantly more artifacts. We conclude that the 3D T1w EPI sequence could not be used instead of the conventional T1w SE, in routine imaging of the brain. Its overall diagnostic capability, could be useful only in uncooperative patients	en
heal.publisher	Elsevier Science Ltd	en
heal.journalName	Magnetic Resonance Imaging	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true