Abstract
The fundamentals of cardiovascular magnetic resonance (CMR) rely on a knowledge of magnetic resonance imaging (MRI) physics. MRI physics describes how protons in a magnetic field behave in response to stimuli such as magnetic gradients and radiofrequency pulses, the basic building blocks of an MRI pulse sequence. MRI pulse sequences utilize the magnetic properties of tissues, specifically T 1, T 2, and T 2* relaxation, to form images and create tissue contrast. In MRI, images are acquired in k-space and must be converted to images. A basic understanding of k-space is crucial to learning how images are formed in MRI, since the parameters of k-space acquisition are directly related to the properties of the final image, e.g., image resolution and field of view. Furthermore, fast imaging techniques, such as parallel imaging and compressed sensing, are applied in k-space. For CMR in particular, accelerated imaging techniques are used to achieve the high temporal resolution necessary to capture the dynamic heart.
In this chapter, we will cover MRI physics, image formation, accelerated imaging techniques, and basic pulse sequences for CMR.
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References
Lauterbur PC. Image formation by induced local interactions. Examples employing nuclear magnetic resonance. Clin Orthop Relat Res. 1973;1989(244):3–6.
Sharma P, Socolow J, Patel S, Pettigrew RI, Oshinski JN. Effect of Gd-DTPA-BMA on blood and myocardial T1 at 1.5T and 3T in humans. J Magn Reson Imaging. 2006;23(3):323–30.
MacFall JR, Pelc NJ, Vavrek RM. Correction of spatially dependent phase shifts for partial Fourier imaging. Magn Reson Imaging. 1988;6(2):143–55.
Hunold P, Maderwald S, Ladd ME, Jellus V, Barkhausen J. Parallel acquisition techniques in cardiac cine magnetic resonance imaging using TrueFISP sequences: comparison of image quality and artifacts. J Magn Reson Imaging. 2004;20(3):506–11.
Tsao J, Boesiger P, Pruessmann KP. K-t BLAST and k-t SENSE: dynamic MRI with high frame rate exploiting spatiotemporal correlations. Magn Reson Med. 2003;50(5):1031–42.
Pruessmann KP, Weiger M, Scheidegger MB, Boesiger P. SENSE: sensitivity encoding for fast MRI. Magn Reson Med. 1999;42(5):952–62.
Bydder M, Larkman DJ, Hajnal JV. Generalized SMASH imaging. Magn Reson Med. 2002;47(1):160–70.
Hutchinson M, Raff U. Fast MRI data acquisition using multiple detectors. Magn Reson Med. 1988;6(1):87–91.
Sodickson DK, Manning WJ. Simultaneous acquisition of spatial harmonics (SMASH): fast imaging with radiofrequency coil arrays. Magn Reson Med. 1997;38(4):591–603.
Griswold MA, Jakob PM, Heidemann RM, et al. Generalized autocalibrating partially parallel acquisitions (GRAPPA). Magn Reson Med. 2002;47(6):1202–10.
Barger AV, Grist TM, Block WF, Mistretta CA. Single breath-hold 3D contrast-enhanced method for assessment of cardiac function. Magn Reson Med. 2000;44(6):821–4.
Peters DC, Ennis DB, McVeigh ER. High-resolution MRI of cardiac function with projection reconstruction and steady-state free precession. Magn Reson Med. 2002;48(1):82–8.
Larson AC, White RD, Laub G, McVeigh ER, Li D, Simonetti OP. Self-gated cardiac cine MRI. Magn Reson Med. 2004;51(1):93–102.
Bi X, Park J, Larson AC, Zhang Q, Simonetti O, Li D. Contrast-enhanced 4D radial coronary artery imaging at 3.0 T within a single breath-hold. Magn Reson Med. 2005;54(2):470–5.
Meyer CH, Pauly JM, Macovski A, Nishimura DG. Simultaneous spatial and spectral selective excitation. Magn Reson Med. 1990;15(2):287–304.
Meyer CH, Hu BS, Nishimura DG, Macovski A. Fast spiral coronary artery imaging. Magn Reson Med. 1992;28(2):202–13.
Bornert P, Stuber M, Botnar RM, et al. Direct comparison of 3D spiral vs. Cartesian gradient-echo coronary magnetic resonance angiography. Magn Reson Med. 2001;46(4):789–94.
Nayak KS, Pauly JM, Yang PC, Hu BS, Meyer CH, Nishimura DG. Real-time interactive coronary MRA. Magn Reson Med. 2001;46(3):430–5.
Hardy CJ, Zhao L, Zong X, Saranathan M, Yucel EK. Coronary MR angiography: respiratory motion correction with BACSPIN. J Magn Reson Imaging. 2003;17(2):170–6.
Yang PC, Meyer CH, Terashima M, et al. Spiral magnetic resonance coronary angiography with rapid real-time localization. J Am Coll Cardiol. 2003;41(7):1134–41.
Block KT, Uecker M, Frahm J. Undersampled radial MRI with multiple coils. Iterative image reconstruction using a total variation constraint. Magn Reson Med. 2007;57(6):1086–98.
Lustig M, Donoho DL, Pauly JM. Sparse MRI: The application of compressed sensing for rapid MR imaging. Magn Reson Med. 2007;58(6):1182–95.
Haase A, Matthaei D, Hanicke W, Frahm J. Dynamic digital subtraction imaging using fast low-angle shot MR movie sequence. Radiology. 1986;160(2):537–41.
Scheffler K, Lehnhardt S. Principles and applications of balanced SSFP techniques. Eur Radiol. 2003;13(11):2409–18.
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Akçakaya, M., Tang, M., Nezafat, R. (2019). Cardiac Magnetic Resonance Imaging Physics. In: Kwong, R., Jerosch-Herold, M., Heydari, B. (eds) Cardiovascular Magnetic Resonance Imaging. Contemporary Cardiology. Springer, New York, NY. https://doi.org/10.1007/978-1-4939-8841-9_1
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