Assessment of Left Ventricular Function and Mass on Free-Breathing Compressed Sensing Real-Time Cine Imaging

Circulation Journal : Official Journal of the Japanese Circulation Society
Tomoyuki KidoTeruhito Mochizuki

Abstract

Compressed sensing (CS) cine magnetic resonance imaging (MRI) has the advantage of being inherently insensitive to respiratory motion. This study compared the accuracy of free-breathing (FB) CS and breath-hold (BH) standard cine MRI for left ventricular (LV) volume assessment.Methods and Results:Sixty-three patients underwent cine MRI with both techniques. Both types of images were acquired in stacks of 8 short-axis slices (temporal/spatial resolution, 41 ms/1.7×1.7×6 mm3) and compared for ejection fraction, end-diastolic and systolic volumes, stroke volume, and LV mass. Both BH standard and FB CS cine MRI provided acceptable image quality for LV volumetric analysis (score ≥3) in all patients (4.7±0.5 and 3.7±0.5, respectively; P<0.0001) and had good agreement on LV functional assessment. LV mass, however, was slightly underestimated on FB CS cine MRI (median, IQR: BH standard, 83.8 mL, 64.7-102.7 mL; FB CS, 79.0 mL, 66.0-101.0 mL; P=0.0006). The total acquisition times for BH standard and FB CS cine MRI were 113±7 s and 24±4 s, respectively (P<0.0001). Despite underestimation of LV mass, FB CS cine MRI is a clinically useful alternative to BH standard cine MRI in patients with impaired BH capacity.

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Citations

Sep 9, 2018·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Andreas HauptmannJennifer A Steeden
Mar 9, 2020·The International Journal of Cardiovascular Imaging·Jiajia WangYinghui Ge
Dec 7, 2018·Journal of Cardiovascular Magnetic Resonance : Official Journal of the Society for Cardiovascular Magnetic Resonance·Jennifer A SteedenVivek Muthurangu
Jul 28, 2020·Journal of Cardiovascular Magnetic Resonance : Official Journal of the Society for Cardiovascular Magnetic Resonance·Murat KocaogluMantosh S Rattan
Dec 15, 2020·Diagnostic and Interventional Imaging·Benjamin LongèreFrançois Pontana
Jun 3, 2021·Journal of Clinical Medicine·Benjamin LongèreFrançois Pontana
May 24, 2021·European Journal of Radiology·Clemens ReiterGert Reiter

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