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MRI of the neck at 3 Tesla using the periodically rotated overlapping parallel lines with enhanced reconstruction

Yoshimitsu Ohgiya1, Jumpei Suyama, Noritaka Seino

  • 1Department of Radiology, Showa University School of Medicine, Tokyo, Japan. yoshimitsu_ohgiya@yahoo.co.jp

Journal of Magnetic Resonance Imaging : JMRI
|October 30, 2010
PubMed
Abstract

Insights

The T2-weighted BLADE (T2W-BLADE) MRI technique reduces motion artifacts in the neck compared to T2-weighted fast spin-echo (T2W-FSE). T2W-BLADE provides comparable tissue contrast and lesion detectability to T2W-FSE.

Area of Science:

  • Radiology
  • Medical Imaging
  • Magnetic Resonance Imaging

Background:

  • Motion artifacts are a common challenge in neck MRI, potentially affecting diagnostic accuracy.
  • The periodically rotated overlapping parallel lines with enhanced reconstruction (PROPELLER), also known as BLADE, technique is designed to mitigate motion artifacts.

Purpose of the Study:

  • To compare the effectiveness of the T2-weighted BLADE (T2W-BLADE) sequence against the T2-weighted fast spin-echo (T2W-FSE) sequence for neck MRI.
  • To evaluate differences in motion artifacts, tissue contrast, and lesion detectability between the two sequences.

Main Methods:

  • A comparative study involving 46 patients undergoing 3T MRI of the neck.
  • T2W-BLADE and T2W-FSE sequences were acquired using identical parameters.
  • Two independent observers assessed image quality, motion artifacts, and lesion detectability. Quantitative measurements evaluated tissue contrast.

Main Results:

  • T2W-BLADE demonstrated significantly fewer ghosting and pulsation artifacts compared to T2W-FSE (P < 0.01).
  • Image quality was rated as equal or better for T2W-BLADE in 93.5% of cases (kappa = 0.64).
  • No significant differences were found in tissue contrast or lesion detectability between the two sequences.

Conclusions:

  • T2W-BLADE is effective in reducing motion artifacts in neck MRI.
  • The T2W-BLADE technique offers comparable tissue contrast and lesion detectability to T2W-FSE.
  • T2W-BLADE represents a valuable alternative for neck imaging, especially in patients prone to motion.

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