Key result
Retrospectively gated cine FSE produced repeatable dynamic carotid artery measurements with no significant difference in measured areas compared to prospectively gated FSE (P=0.36).
Why the study?
Does retrospectively gated cine fast spin echo (FSE) imaging improve the characterization of carotid artery dynamics compared to prospectively gated FSE in volunteers?
Cross-Sectional (n=10)
Does retrospectively gated cine fast spin echo (FSE) imaging improve the characterization of carotid artery dynamics compared to prospectively gated FSE in volunteers?
p-value: p=0.36
Retrospectively gated cine FSE provides repeatable dynamic carotid artery measurements with less artifact and greater temporal efficiency than prospectively gated FSE.
Supports retrospective gating for repeatable carotid cine FSE; leaves open clinical adoption pending patient validation.
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.
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Boesen et al. (2014) reported a cross-sectional. Retrospectively gated cine fast spin echo (FSE) sequence vs. Prospectively gated FSE sequence was evaluated on Common carotid artery area and systolic-diastolic area changes (p=0.36). Retrospectively gated cine FSE produced repeatable dynamic carotid artery measurements with no significant difference in measured areas compared to prospectively gated FSE (P=0.36).
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