Quantitative Assessment of Left Ventricular Function: Steady-State Free Precession MR Imaging with or without Sensitivity Encoding

Q: What is the clinical evidence from this study?

Study design: Observational. Population: Left ventricular function assessment (n=20). Intervention: SENSE-accelerated cine SSFP imaging vs. Standard multisection multiphase SSFP imaging. Primary outcome: Estimates of LV ejection fraction, LV mass, and blood-to-muscle contrast.

Q: What does this research mean for the field?

Combining sensitivity encoding (SENSE) with cine steady-state free precession (SSFP) MR imaging reduces acquisition time by 50% without compromising spatial or temporal resolution compared to standard SSFP for quantitative left ventricular function assessment. Novelty: ClaimNovelty.METHODOLOGICAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

Key Result

SENSE-accelerated cine SSFP imaging reduced acquisition time by 50% without compromising spatial or temporal resolution compared to standard SSFP for quantitative left ventricular function assessment.

Study Design

Type

Observational (n=20)

Structured PICO

Does SENSE-accelerated cine SSFP imaging provide similar quantitative left ventricular function assessment compared to standard SSFP imaging while reducing acquisition time in patients?

Population

20 patients undergoing magnetic resonance imaging for left ventricular function assessment

Intervention

Sensitivity encoding (SENSE)-accelerated cine steady-state free precession (SSFP) imaging

Comparator

Standard multisection multiphase steady-state free precession (SSFP) imaging

Outcome

Estimates of LV ejection fraction, LV mass, and blood-to-muscle contrastsurrogate

SENSE-accelerated cine SSFP imaging can reduce MRI acquisition time by 50% without compromising the accuracy of quantitative left ventricular function assessment.

Abstract

Quantitative left ventricular (LV) function was assessed with magnetic resonance imaging in 20 patients by using standard multisection multiphase steady-state free precession (SSFP) imaging and sensitivity encoding (SENSE)-accelerated cine SSFP imaging with identical spatial, contrast, and temporal resolution. The local institutional review board approved the protocol, and all patients gave signed informed consent prior to imaging. The study complied with the Health Insurance Portability and Accountability Act. Results of Bland-Altman analysis showed that both techniques produced similar estimates of LV ejection fraction, LV mass, and blood-to-muscle contrast and demonstrated minimal interobserver variability. The authors showed that it is possible, by combining SENSE with cine SSFP imaging, to reduce acquisition time by 50% without compromising spatial resolution, temporal resolution, or blood-to-muscle contrast-to-noise ratio compared with those achieved by using SSFP imaging without SENSE for quantitative LV function assessment.

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Cite This Study

Kacere et al. (Wed,) conducted a observational in Left ventricular function assessment (n=20). SENSE-accelerated cine SSFP imaging vs. Standard multisection multiphase SSFP imaging was evaluated on Estimates of LV ejection fraction, LV mass, and blood-to-muscle contrast. SENSE-accelerated cine SSFP imaging reduced acquisition time by 50% without compromising spatial or temporal resolution compared to standard SSFP for quantitative left ventricular function assessment.

synapsesocial.com/papers/6a154060cb0379474a820e93 https://doi.org/https://doi.org/10.1148/radiol.2353030995

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