Mari E Boesen1,2,3, Luis A Souto Maior Neto3, Alexandra Pulwicki3, Jerome Yerly2,3,4,5,6, R Marc Lebel3,7,8, Richard Frayne1,2,3,4,7,9. 1. Physics and Astronomy, University of Calgary, Calgary, Canada. 2. Hotchkiss Brain Institute, University of Calgary, Calgary, Canada. 3. Seaman Family Centre, Foothills Medical Centre, AB Health Services, Calgary, Canada. 4. Electrical and Computer Engineering, University of Calgary, Calgary, Canada. 5. Radiology, University Hospital and University of Lausanne, Lausanne, Switzerland. 6. Centre for Biomedical Imaging, Lausanne, Switzerland. 7. Radiology, University of Calgary, Calgary, Canada. 8. General Electric Healthcare, Calgary, Calgary, Canada. 9. Clinical Neurosciences, University of Calgary, Calgary, Canada.
Abstract
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.
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.
Authors: Mari E Boesen; Prasanna Venkatesan Eswaradass; Dilip Singh; Alim P Mitha; Mayank Goyal; Richard Frayne; Bijoy K Menon Journal: Neuroradiology Date: 2017-03-06 Impact factor: 2.804
Authors: Jonathan I Tamir; Martin Uecker; Weitian Chen; Peng Lai; Marcus T Alley; Shreyas S Vasanawala; Michael Lustig Journal: Magn Reson Med Date: 2016-01-20 Impact factor: 4.668