Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2024 Jun;17(2):518-526.
doi: 10.1007/s12194-024-00784-z. Epub 2024 Feb 17.

Improving image quality using the pause function combination to PROPELLER sequence in brain MRI: a phantom study

Kousaku Saotome  1   2 , Koji Matsumoto  3 , Yoshiaki Kato  4 , Yoshihiro Ozaki  5 , Motohiro Nagai  4 , Tomoyuki Hasegawa  6 , Hiroki Tsuchiya  7 , Tensho Yamao  8
Affiliations

Improving image quality using the pause function combination to PROPELLER sequence in brain MRI: a phantom study

Kousaku Saotome et al. Radiol Phys Technol. 2024 Jun.

Abstract

While some MRI systems offer a "pause" function, combining it with the PROPELLER method for image quality improvement remains underexplored. This study investigated whether repositioning the head after pausing during PROPELLER imaging enhances image quality. All brain phantom images in this study were obtained using a 3.0 T MRI and acquired using the fast spin-echo T2WI-based PROPELLER with motion correction. By combining the angle of rotational motion of the head phantom and the number of repositioning after a pause, two studies including seven trials were performed. Increasing the rotation angle decreased the image quality; however, pausing the image and repositioning the head phantom to the original angle improved the image quality. A similar result was obtained by repositioning the angle closer to its original angle. Experiments with multiple head movements showed that pausing the scan and repositioning the phantom with each movement improved image quality.

Keywords: Brain; Magnetic resonance imaging; PROPELLER; Pause; Phantom; Radial scan.

PubMed Disclaimer

Similar articles

See all similar articles

Cited by

References

    1. Pipe JG. Motion correction with PROPELLER MRI: application to head motion and free-breathing cardiac imaging. Magn Reson Med. 1999;42:963–9. - DOI - PubMed
    1. Forbes KP, Pipe JG, Bird CR, Heiserman JE. PROPELLER MRI: clinical testing of a novel technique for quantification and compensation of head motion. J Magn Reson Imaging. 2001;14:215–22. - DOI - PubMed
    1. Deng J, Miller FH, Salem R, Omary RA, Larson AC. Multishot diffusion-weighted PROPELLER magnetic resonance imaging of the abdomen. Invest Radiol. 2006;41:769–75. - DOI - PubMed
    1. Hirokawa Y, Isoda H, Maetani YS, Arizono S, Shimada K, Okada T, et al. Hepatic lesions: improved image quality and detection with the periodically rotated overlapping parallel lines with enhanced reconstruction technique–evaluation of SPIO-enhanced T2-weighted MR images. Radiology. 2009;251:388–97. - DOI - PubMed
    1. Hirokawa Y, Isoda H, Maetani YS, Arizono S, Shimada K, Togashi K. Evaluation of motion correction effect and image quality with the periodically rotated overlapping parallel lines with enhanced reconstruction (PROPELLER) (BLADE) and parallel imaging acquisition technique in the upper abdomen. J Magn Reson Imaging. 2008;28:957–62. - DOI - PubMed

MeSH terms

LinkOut - more resources