Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Accelerating cardiac cine 3D imaging using k-t BLAST.

Sebastian Kozerke1, Jeffrey Tsao, Reza Razavi

  • 1Department of Imaging Sciences, Guy's Hospital, King's College, London, UK. kozerke@biomed.ee.ethz.ch

Magnetic Resonance in Medicine
|July 6, 2004
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Comparative analysis of optical properties in amniotic membrane products.

International ophthalmology·2025
Same author

Clinical benefit of AI-assisted lung ultrasound in a resource-limited intensive care unit.

Critical care (London, England)·2023
Same author

Differentiation state and culture conditions impact neural stem/progenitor cell-derived extracellular vesicle bioactivity.

Biomaterials science·2023
Same author

Uncertainty aware training to improve deep learning model calibration for classification of cardiac MR images.

Medical image analysis·2023
Same author

Retrospective motion correction through multi-average k-space data elimination (REMAKE) for free-breathing cardiac cine imaging.

Magnetic resonance in medicine·2023
Same author

AI-AIF: artificial intelligence-based arterial input function for quantitative stress perfusion cardiac magnetic resonance.

European heart journal. Digital health·2023
Same journal

Feasibility and SNR Performance of Hyperpolarized <sup>129</sup>Xe Gas Exchange Imaging Using a Balanced SSFP Sequence.

Magnetic resonance in medicine·2026
Same journal

Multi-Contrast Human Brain CEST MRI at 11.7 T: First In Vivo Demonstration.

Magnetic resonance in medicine·2026
Same journal

Suppression of Oscillation and Ghosting in RF-Spoiled Gradient-Echo-Based Dynamic Imaging.

Magnetic resonance in medicine·2026
Same journal

A Simple, Dynamic Geometric Phantom for MRI and CT Reconstruction Pipelines: Beyond Shepp-Logan.

Magnetic resonance in medicine·2026
Same journal

7T 3D-EPI PCASL With High SNR Efficiency and Robustness to Through-Plane B<sub>0</sub> Field Gradients.

Magnetic resonance in medicine·2026
Same journal

A Comparison of Tissue Property Values Estimated Using Conventional Cardiac MRF and MT-Cardiac MRF.

Magnetic resonance in medicine·2026
See all related articles

Accelerated cardiac MRI using k-t BLAST enables rapid 3D imaging within a single breathhold. This technique significantly reduces scan times, improving patient comfort and facilitating comprehensive heart assessments.

Area of Science:

  • Cardiovascular Magnetic Resonance Imaging
  • Medical Imaging Physics
  • Cardiac Functional Analysis

Background:

  • Traditional 3D cardiac MRI is time-consuming, often requiring multiple breathholds.
  • Accelerated imaging techniques are crucial for improving patient tolerance and diagnostic efficiency.
  • k-t BLAST offers a method to reconstruct undersampled spatiotemporal data.

Purpose of the Study:

  • To implement and evaluate k-t BLAST for accelerated 3D cine cardiac MRI.
  • To achieve single breathhold volumetric cardiac imaging.
  • To assess the feasibility and accuracy of the accelerated method in healthy volunteers and patients.

Main Methods:

  • Implemented k-t BLAST with sparse sampling on a sheared grid in a 3D SSFP sequence.

Related Experiment Videos

  • Acquired low-resolution training data interleaved or as a prescan for aliasing correction.
  • Acquired volumetric datasets (20 slices, 2x2x5 mm^3, 20 cardiac phases) within 18-27 seconds breathhold.

    • Main Results:

    • Achieved a net acceleration factor of 4.3, enabling single breathhold 3D cine MRI.
    • Demonstrated feasibility in healthy subjects and cardiac patients.
    • No significant differences in endocardial area compared to conventional single-slice acquisitions.

    Conclusions:

    • k-t BLAST significantly shortens volumetric cardiac MRI acquisition time.
    • Facilitates comprehensive evaluation of regional wall motion, ventricular volume, and ejection fraction.
    • Potential to improve clinical workflow and patient experience in cardiac imaging.