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Related Experiment Video

Updated: Feb 27, 2026

Phase Contrast Magnetic Resonance Imaging in the Rat Common Carotid Artery
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Three-dimensional black-blood multi-contrast carotid imaging using compressed sensing: a repeatability study.

Jianmin Yuan1, Ammara Usman2, Scott A Reid3

  • 1Department of Radiology, School of Clinical Medicine, University of Cambridge, Level 5, Box 218, Addenbrooke's Hospital, Hills Rd, Cambridge, CB2 0QQ, UK. jy338@cam.ac.uk.

Magma (New York, N.Y.)
|June 28, 2017
PubMed
Summary
This summary is machine-generated.

This study demonstrates that compressed sensing (CS) accelerated multi-contrast carotid MRI is a repeatable and robust imaging method. The protocol shows high consistency for measuring carotid lumen and wall dimensions, suggesting potential for reduced scan times.

Keywords:
Carotid MRICompressed sensingMulti-contrast

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Area of Science:

  • Radiology and Imaging Science
  • Cardiovascular Imaging
  • Medical Physics

Background:

  • Multi-contrast 3D black-blood MRI protocols are crucial for detailed carotid artery imaging.
  • Accelerated imaging techniques are needed to improve efficiency and patient comfort.
  • Compressed sensing (CS) offers potential for significant acceleration in MRI acquisition.

Purpose of the Study:

  • To evaluate the repeatability of a compressed sensing (CS) accelerated multi-contrast carotid MRI protocol at 3 Tesla.
  • To assess the reproducibility of quantitative measurements (lumen/wall area, wall thickness) using this accelerated protocol.

Main Methods:

  • A 3D black-blood multi-contrast protocol (T1w, T2w, PDw) was implemented on a 3T MRI scanner.
  • Compressed sensing (CS) factors of 1.5 and 2.0 were applied.
  • Twelve healthy volunteers underwent repeat scans to assess repeatability; eight patients with carotid disease were scanned for inter/intra-observer reproducibility.

Main Results:

  • High interclass correlation coefficients (ICCs) were observed for wall area (0.81-0.97) and lumen area (0.92-0.96) with CS factor 1.5.
  • Inter/intra-observer reproducibility for lumen/wall area and wall thickness in patients exceeded ICC > 0.81 across all sequences.
  • The protocol demonstrated robust performance even with accelerated acquisition.

Conclusions:

  • The CS-accelerated 3D black-blood multi-contrast carotid protocol is a robust and reproducible method for carotid imaging.
  • This technique holds promise for reducing scan times in clinical practice.
  • Further optimization of CS parameters could enhance protocol efficiency.