Volume 72, Issue 2 pp. 369-380
Full Paper

Application of the compressed sensing technique to self-gated cardiac cine sequences in small animals

Paula Montesinos

Corresponding Author

Paula Montesinos

Departamento de Bioingeniería e Ingeniería Aeroespacial, Universidad Carlos III de Madrid, Spain

Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain

Correspondence to: Paula Montesinos, M.S.E., Departamento de Bioingeniería e Ingeniería Aeroespacial, Universidad Carlos III de Madrid, Avda. de la Universidad, 30, 28911 Leganés (Madrid), Spain. E-mail:[email protected]Search for more papers by this author
Juan Felipe P.J. Abascal

Juan Felipe P.J. Abascal

Departamento de Bioingeniería e Ingeniería Aeroespacial, Universidad Carlos III de Madrid, Spain

Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain

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Lorena Cussó

Lorena Cussó

Departamento de Bioingeniería e Ingeniería Aeroespacial, Universidad Carlos III de Madrid, Spain

Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain

Centro de Investigación Biomédica En Red de Salud Mental, CIBERSAM, Madrid, Spain

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Juan José Vaquero

Juan José Vaquero

Departamento de Bioingeniería e Ingeniería Aeroespacial, Universidad Carlos III de Madrid, Spain

Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain

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Manuel Desco

Manuel Desco

Departamento de Bioingeniería e Ingeniería Aeroespacial, Universidad Carlos III de Madrid, Spain

Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain

Centro de Investigación Biomédica En Red de Salud Mental, CIBERSAM, Madrid, Spain

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First published: 16 September 2013
Citations: 26

Abstract

Purpose

Self-gated cine sequences are a common choice for cardiac MRI in preclinical applications. The aims of our work were to apply the compressed sensing technique to IntraGateFLASH cardiac MRI studies on rats and to find the maximum acceleration factor achievable with this technique.

Theory and Methods

Our reconstruction method extended the Split Bregman formulation to minimize the total variation in both space and time. In addition, we analyzed the influence of the undersampling pattern on the acceleration factor achievable.

Results

Our results show that acceleration factors of up to 15 are achievable with our technique when appropriate undersampling patterns are used. The introduction of a time-varying random sampling clearly improved the efficiency of the undersampling schemes. In terms of computational efficiency, the proposed reconstruction method has been shown to be competitive as compared with the fastest methods found in the literature.

Conclusion

We successfully applied our compressed sensing technique to self-gated cardiac cine acquisition in small animals, obtaining an acceleration factor of up to 15 with almost unnoticeable image degradation. Magn Reson Med 72:369–380, 2014. © 2013 Wiley Periodicals, Inc.

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