Volume 30, Issue 1 pp. 94-103
Original Research

Cine cardiac imaging using black-blood steady-state free precession (BB-SSFP) at 3T

Tamer A. Basha MSE

Tamer A. Basha MSE

Department of Electrical and Computer Engineering, Johns Hopkins University, Baltimore, Maryland

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El-Sayed H. Ibrahim PhD

El-Sayed H. Ibrahim PhD

Department of Radiology, Division of Magnetic Resonance Research, Johns Hopkins University, Baltimore, Maryland

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Robert G. Weiss MD

Robert G. Weiss MD

Department of Radiology, University of Florida, Jacksonville, Florida

Department of Medicine, Cardiology Division, Johns Hopkins University, Baltimore, Maryland

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Nael F. Osman PhD

Corresponding Author

Nael F. Osman PhD

Department of Electrical and Computer Engineering, Johns Hopkins University, Baltimore, Maryland

Department of Radiology, University of Florida, Jacksonville, Florida

Department of Medicine, Cardiology Division, Johns Hopkins University, Baltimore, Maryland

Johns Hopkins University, 600 N. Wolfe St., Park Bldg., Room 322, Baltimore, MD 21287Search for more papers by this author
First published: 25 June 2009
Citations: 3

Abstract

Purpose

To propose a new black-blood (BB) pulse sequence that provides BB cine cardiac images with high blood-myocardium contrast. The proposed technique is based on the conventional steady-state free precession (SSFP) sequence.

Materials and Methods

Numerical simulations of the Bloch equation were conducted to compare the resulting signal-to-noise ratio (SNR) to that of conventional BB imaging, including the effects of changing the imaging flip angle and heart rates. Simulation results were verified using a gel phantom experiment and five normal volunteers were scanned using the proposed technique.

Results

The new sequence showed higher SNR and contrast-to-noise ratio (CNR) (≈100%) compared to the conventional BB imaging. Also, the borders of the left ventricle (LV) and right ventricle (RV) appear more distinguishable than the conventional SSFP. We were also able to cover about 80% of the cardiac cycle with short breath-hold time (≈10 cardiac cycles) and with reasonable SNR and CNR.

Conclusion

Based on an SSFP conventional sequence, the new sequence provides BB cines that cover most of the cardiac cycle and with higher SNR and CNR than the conventional BB sequences. J. Magn. Reson. Imaging 2009;30:94–103. © 2009 Wiley-Liss, Inc.

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