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2024•Proceedings on CD-ROM - International Society for Magnetic Resonance in Medicine. Scientific Meeting and Exhibition/Proceedings of the International Society for Magnetic Resonance in Medicine, Scientific Meeting and ExhibitionRequires access

A Multi-Sequence SSFP-SPGR One-Breath-Hold Cine-Tag MR – Extent of Hybrid Artifact Interference

Jacob Goes, Vivian S. Nguyen, Donovan Gorre, Timothy J. Carroll, Jihye Jang, Marcella K. Vaicik, Jouke Smink, Amit R. Patel, Jeremy Silvnick, Keigo Kawaji

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Abstract

A single-breath-held (BH) cine and tag MRI offers a hybrid SSFP-SPGR contrast approach with potential to provide quantitative measures of regional myocardial wall motion. Such approaches overcome the need for inter-BH misregistration during conventional, multi-sequence acquisition. In this study, we examine the extent of artifact interferences that manifest by means of the bypassed pre-scan calibration steps for the less sensitive SPGR-tag scan. A consecutive cohort of 25 subjects that yielded ~400 cine- and tag-volumes were retrospectively analyzed to examine the prevalence of artifact, interference with motion assessment, and the rate of yielding assessable wall motion via the hybrid one-breath-hold approach.

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What this paper is about

A single-breath-held (BH) cine and tag MRI offers a hybrid SSFP-SPGR contrast approach with potential to provide quantitative measures of regional myocardial wall motion. Such approaches overcome the need for inter-BH misregistration during conventional, multi-sequence acquisition. In this study, we examine the extent of artifact interferences that manifest by means of the bypassed pre-scan calibration steps for the less sensitive SPGR-tag scan. A consecutive cohort of 25 subjects that yielded ~400 cine- and tag-volumes were retrospectively analyzed to examine the prevalence of artifact, interference with motion assessment, and the rate of yielding assessable wall motion via the hybrid one-breath-hold approach.

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Available abstract

A single-breath-held (BH) cine and tag MRI offers a hybrid SSFP-SPGR contrast approach with potential to provide quantitative measures of regional myocardial wall motion. Such approaches overcome the need for inter-BH misregistration during conventional, multi-sequence acquisition. In this study, we examine the extent of artifact interferences that manifest by means of the bypassed pre-scan calibration steps for the less sensitive SPGR-tag scan. A consecutive cohort of 25 subjects that yielded ~400 cine- and tag-volumes were retrospectively analyzed to examine the prevalence of artifact, interference with motion assessment, and the rate of yielding assessable wall motion via the hybrid one-breath-hold approach.

Key concepts: Artifact (error), Steady-state free precession imaging, Calibration, Sequence (biology), Interference (communication), Computer science, Nuclear medicine, Motion (physics)

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A Multi-Sequence SSFP-SPGR One-Breath-Hold Cine-Tag MR – Extent of Hybrid Artifact Interference — Research Paper | ScholarLens