Aortic annular dimensions by non-contrast MRI using k–t accelerated 3D cine b-SSFP in pre-procedural assessment for transcatheter aortic valve implantation: ... View Full Text


Ontology type: schema:ScholarlyArticle      Open Access: True


Article Info

DATE

2020-09-23

AUTHORS

Pascale Aouad, Kelly Brooke Jarvis, Marcos Ferreira Botelho, Ali Serhal, Julie Blaisdell, Louise Collins, Shivraman Giri, Daniel Kim, Michael Markl, Mark J. Ricciardi, Charles J. Davidson, Jeremy Collins, James Carr

ABSTRACT

To evaluate k–t accelerated 3D cine b-SSFP (balanced steady state free precession) as magnetic resonance imaging (MRI) technique for aortic annular area measurement in transcatheter aortic valve replacement (TAVR) planning compared to computed tomography angiography (CTA) and other non-contrast MRI sequences with reduced imaging time and without contrast administration. 6 volunteers and 7 TAVR candidates were prospectively enrolled. The volunteers underwent an MRI while TAVR candidates underwent an MRI and CTA. The following non-contrast MRI sequences were obtained at the level of the aortic root: 2D cine b-SSFP [GRAPPA (GeneRalized Autocalibrating Partially Parallel Acquisitions), R = 2], 3D cine b-SSFP [GRAPPA R = 2], navigator triggered 3D b-SSFP MRA [GRAPPA, R = 2] and k–t accelerated 3D cine b-SSFP [PEAK GRAPPA, R = 5]. Qualitative analysis and aortic annular area measurements in systole and diastole were obtained. k–t accelerated 3D cine b-SSFP provided image quality that is acceptable for confident diagnosis with very good interrater agreement. There was no statistically significant difference in aortic annular measurements between k–t accelerated 3D cine b-SSFP and CTA or other MRI sequences (p > 0.05). Bland–Altman analysis showed no systemic difference of annular area measurements between k–t accelerated 3D cine b-SSFP and each of the other techniques. There was excellent inter-rater agreement on aortic annular area measurements during systolic (ICC = 0.976, p < 0.001) and diastolic (ICC = 0.971, p < 0.001) phases using k–t accelerated 3D cine b-SSFP. K–t accelerated 3D cine b-SSFP is a promising alternative for the assessment of annular sizing in pre-TAVR evaluation while offering a reasonable combination of imaging parameters during one breath-hold. More... »

PAGES

651-661

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s10554-020-02038-6

DOI

http://dx.doi.org/10.1007/s10554-020-02038-6

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1131133309

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/32968888


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30 schema:description To evaluate k–t accelerated 3D cine b-SSFP (balanced steady state free precession) as magnetic resonance imaging (MRI) technique for aortic annular area measurement in transcatheter aortic valve replacement (TAVR) planning compared to computed tomography angiography (CTA) and other non-contrast MRI sequences with reduced imaging time and without contrast administration. 6 volunteers and 7 TAVR candidates were prospectively enrolled. The volunteers underwent an MRI while TAVR candidates underwent an MRI and CTA. The following non-contrast MRI sequences were obtained at the level of the aortic root: 2D cine b-SSFP [GRAPPA (GeneRalized Autocalibrating Partially Parallel Acquisitions), R = 2], 3D cine b-SSFP [GRAPPA R = 2], navigator triggered 3D b-SSFP MRA [GRAPPA, R = 2] and k–t accelerated 3D cine b-SSFP [PEAK GRAPPA, R = 5]. Qualitative analysis and aortic annular area measurements in systole and diastole were obtained. k–t accelerated 3D cine b-SSFP provided image quality that is acceptable for confident diagnosis with very good interrater agreement. There was no statistically significant difference in aortic annular measurements between k–t accelerated 3D cine b-SSFP and CTA or other MRI sequences (p > 0.05). Bland–Altman analysis showed no systemic difference of annular area measurements between k–t accelerated 3D cine b-SSFP and each of the other techniques. There was excellent inter-rater agreement on aortic annular area measurements during systolic (ICC = 0.976, p < 0.001) and diastolic (ICC = 0.971, p < 0.001) phases using k–t accelerated 3D cine b-SSFP. K–t accelerated 3D cine b-SSFP is a promising alternative for the assessment of annular sizing in pre-TAVR evaluation while offering a reasonable combination of imaging parameters during one breath-hold.
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37 schema:keywords Bland-Altman analysis
38 MRA
39 MRI
40 MRI sequences
41 TAVR candidates
42 administration
43 agreement
44 alternative
45 analysis
46 angiography
47 annular dimensions
48 annular measurements
49 annular sizing
50 aortic annular dimensions
51 aortic annular measurements
52 aortic root
53 aortic valve implantation
54 area measurements
55 assessment
56 b-SSFP
57 candidates
58 combination
59 computed tomography angiography
60 confident diagnosis
61 contrast administration
62 diagnosis
63 diastole
64 differences
65 dimensions
66 evaluation
67 excellent inter-rater agreement
68 feasibility study
69 good interrater agreement
70 image quality
71 imaging techniques
72 imaging time
73 implantation
74 inter-rater agreement
75 interrater agreement
76 levels
77 magnetic resonance imaging techniques
78 measurements
79 navigator
80 non-contrast MRI
81 non-contrast MRI sequences
82 parameters
83 phase
84 planning
85 pre-TAVR evaluation
86 pre-procedural assessment
87 promising alternative
88 qualitative analysis
89 quality
90 reasonable combination
91 reduced imaging time
92 replacement planning
93 roots
94 sequence
95 significant differences
96 sizing
97 study
98 systemic differences
99 systole
100 systolic
101 technical feasibility study
102 technique
103 time
104 tomography angiography
105 transcatheter aortic valve implantation
106 transcatheter aortic valve replacement (TAVR) planning
107 valve implantation
108 volunteers
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