The study compared the use of periodically rotated overlapping parallel lines with enhanced reconstruction (PROPELLER) technique fast spin echo (FSE) T2 W and the sequence of three-dimensional fast imaging employing steady-state acquisition (3D–FIESTA) technique in the MRI of the internal auditory canal for overall image quality improvement.
Materials and methods
One hundred thirty-two patients undergoing FSE T2 W PROPELLER and 3D–FIESTA examinations of the internal auditory canal were included. All examinations were performed at 3.0 T with comparison of a sagittal oblique FSE T2 W sequence with the PROPELLER technique to 3D–FIESTA in the same reconstructed orientation with PROPELLER. Image quality was evaluated by two radiologists using a 4-point scale. The Wilcoxon signed rank test was used to compare the data of the two techniques.
The image quality of FSE T2 W PROPELLER was significantly improved compared to the reconstructed images of 3D–FIESTA. Observer 1: median FSE T2 W with PROPELLER, 4 [mean, 3.455] versus median reconstructed 3D–FIESTA, 3 [mean, 3.15], (P<.001); Observer 2: median FSE T2 W with PROPELLER, 4 [mean, 3.47] versus median reconstructed 3D–FIESTA, 3 [mean, 3.25], (P<.001). Interobserver agreement was good (k value, 0.73) for the rating of the overall image quality.
The FSE T2 W PROPELLER technique for MRI of internal auditory canal reduced uncertainty caused by motion artifact and improved the quality of the image compared to the reconstructed 3D–FIESTA. It was affected by different parameters including the blade width, echo train length (ETL). This is explained by data oversampling at the center region of k-space, which requires additional imaging time over conventional MRI techniques. Increasing blade was expected to improve motion correction effects but also the signal-to-noise ratio. ETL increases the image sharpness and the overall image quality.
To read this article in full you will need to make a payment
Purchase one-time access:Academic & Personal: 24 hour online accessCorporate R&D Professionals: 24 hour online access
One-time access price info
- For academic or personal research use, select 'Academic and Personal'
- For corporate R&D use, select 'Corporate R&D Professionals'
Subscribe:Subscribe to Clinical Imaging
Already a print subscriber? Claim online access
Already an online subscriber? Sign in
Register: Create an account
Institutional Access: Sign in to ScienceDirect
- Contrast-enhanced T1-weighted fluid-attenuated inversion-recovery BLADE magnetic resonance imaging of the brain: an alternative to spin-echo technique for detection of brain lesions in the unsedated pediatric patient?.Acad Radiol. 2008; 15: 986-995
- MRI artifact reduction and quality improvement in the upper abdomen with PROPELLER and prospective acquisition correction (PACE) technique.AJR. 2008; 191: 1154-1158
- Brain imaging in the unsedated pediatric patient: comparison of periodically rotated overlapping parallel lines with enhanced reconstruction and single-shot fast spin-echo sequences.AJNR. 2003; 24: 794-798
- Motion correction in periodically-rotated overlapping parallel lines with enhanced reconstruction (PROPELLER) and turboprop MRI.Magn Reson Med. 2009; 62: 174-182
- 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: 957-962
- BLADE in sagittal T2-weighted MR imaging of the cervical spine.AJNR. 2010; 31: 674-681
- T1-weighted brain imaging with a 32-channel coil at 3 T using turbo FLASH BLADE compared with standard cartesian k-space sampling.Invest Radiol. 2009; 44: 177-183
- Improved image quality and detection of acute cerebral infarction with PROPELLER diffusion-weighted MR imaging.Radiology. 2002; 225: 551-555
- New algorithm for extracting motion information from PROPELLER data and head motion correction in T1-weighted MRI.Conf Proc IEEE Eng Med Biol Soc. 2005; 2: 1378-1381
- Depiction of the cranial nerves within the brain stem with use of PROPELLER multishot diffusion-weighted imaging.AJNR. 2008; 29: 911-912
- PROPELLER EPI: an MRI technique suitable for diffusion tensor imaging at high field strength with reduced geometric distortions.Magn Reson Med. 2005; 54: 1232-1240
- PROPELLER-EPI with parallel imaging using a circularly symmetric phased-array RF coil at 3.0 T: application to high-resolution diffusion tensor imaging.Magn Reson Med. 2006; 56: 1352-1358
- 3T MR imaging of postoperative recurrent middle ear cholesteatomas: value of periodically rotated overlapping parallel lines with enhanced reconstruction diffusion-weighted MR imaging.AJNR. 2009; 30: 423-427
- Multishot diffusion-weighted PROPELLER magnetic resonance imaging of the abdomen.Invest Radiol. 2006; 41: 769-775
- Renal T2-weighted turbo-spin-echo imaging with BLADE at 3.0 tesla: initial experience.J Magn Reson Imaging. 2008; 27: 148-153
- Decreased CSF-flow artefacts in T2 imaging of the cervical spine with periodically rotated overlapping parallel lines with enhanced reconstruction (PROPELLER/BLADE).Neuroradiology. 2011; 53: 13-18
- Comparison of contrast-enhanced T1-weighted FLAIR with BLADE, and spin-echo T1-weighted sequences in intracranial MRI.Diagn Interv Radiol. 2009; 15: 75-80
- Comparison of FSE T2WI and 3D FIESTA sequences in the evaluation of posterior fossa cranial nerves with MR cisternography.Diagn Interv Radiol. 2007; 13: 56-60
Published online: October 04, 2016
Accepted: September 8, 2016
Received in revised form: July 12, 2016
Received: December 15, 2015
© 2016 Published by Elsevier Inc.