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Fast spin echo imaging of carotid artery dynamics
Author(s) -
Boesen Mari E.,
Maior Neto Luis A. Souto,
Pulwicki Alexandra,
Yerly Jerome,
Lebel R. Marc,
Frayne Richard
Publication year - 2015
Publication title -
magnetic resonance in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.696
H-Index - 225
eISSN - 1522-2594
pISSN - 0740-3194
DOI - 10.1002/mrm.25494
Subject(s) - intraclass correlation , fast spin echo , carotid arteries , medicine , common carotid artery , nuclear medicine , diastole , radiology , magnetic resonance imaging , cardiology , blood pressure , clinical psychology , psychometrics
Purpose We propose the use of a retrospectively gated cine fast spin echo (FSE) sequence for characterization of carotid artery dynamics. The aim of this study was to compare cine FSE measures of carotid dynamics with measures obtained on prospectively gated FSE images. Methods The common carotid arteries in 10 volunteers were imaged using two temporally resolved sequences: (i) cine FSE and (ii) prospectively gated FSE. Three raters manually traced a common carotid artery area for all cardiac phases on both sequences. Measured areas and systolic–diastolic area changes were calculated and compared. Inter‐ and intra‐rater reliability were assessed for both sequences. Results No significant difference between cine FSE and prospectively gated FSE areas were observed ( P = 0.36). Both sequences produced repeatable cross‐sectional area measurements: inter‐rater intraclass correlation coefficient (ICC) = 0.88 on cine FSE images and 0.87 on prospectively gated FSE images. Minimum detectable difference (MDD) in systolic–diastolic area was 4.9 mm 2 with cine FSE and 6.4 mm 2 with prospectively gated FSE. Conclusion This cine FSE method produced repeatable dynamic carotid artery measurements with less artifact and greater temporal efficiency compared with prospectively gated FSE. Magn Reson Med 74:1103–1109, 2015. © 2014 Wiley Periodicals, Inc.