Abstract
Objectives
Qualitative and quantitative comparison of the application value of diffusion-weighted
imaging (DWI) magnetic resonance imaging based on field-of-view (FOV) optimized and
constrained undistorted single shot (FOCUS) with the standard single-shot echo-planar
imaging (ss-EPI) in patients with prostate cancer.
Methods
A total of 28 patients with 33 prostate cancers underwent ss-EPI and FOCUS DWI. Two
independent readers assessed image studies.
Results
Image qualities of FOCUS were rated superior to ss-EPI (P<.001). The mean apparent diffusion coefficient value of 33 cancers was 974.030×10−6 mm2/s and 941.727×10−6 mm2/s, respectively, and the difference was statistically significant (t=2.579, P=.015).
Conclusions
FOCUS as a high-resolution DWI technique has potential clinical utility.
Keywords
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 accessOne-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 ImagingAlready a print subscriber? Claim online access
Already an online subscriber? Sign in
Register: Create an account
Institutional Access: Sign in to ScienceDirect
References
- Multiparametric magnetic resonance imaging for the detection and localization of prostate cancer: combination of T2-weighted, dynamic contrast-enhanced and diffusion-weighted imaging.BJU Int. 2011; 107: 1411-1418
- Prostate cancer: multiparametric MR imaging for detection, localization, and staging.Radiology. 2011; 261: 46-66
- MR-sequences for prostate cancer diagnostics: validation based on the PI-RADS scoring system and targeted MR-guided in-bore biopsy.Eur Radiol. 2014; 24: 2582-2589
- Prebiopsy multiparametric 3T prostate MRI in patients with elevated PSA, normal digital rectal examination, and no previous biopsy.J Magn Reson Imaging. 2014; https://doi.org/10.1002/jmri.24682
- Diagnostic accuracy of ultra-high-b-value 3.0-T diffusion-weighted MR imaging for detection of prostate cancer.Clin Imaging. 2012; 36: 526-531
- Assessment of apparent diffusion coefficient values as predictor of aggressiveness in peripheral zone prostate cancer: comparison with Gleason score.ISRN Radiol. 2014; 2014: 263417
- Image artifacts on prostate diffusion-weighted magnetic resonance imaging: trade-offs at 1.5 Tesla and 3.0 Tesla.Acad Radiol. 2013; 20: 1041-1047
- Ultrafast imaging: principles, pitfalls, solutions, and applications.J Magn Reson Imaging. 2010; 32: 252-266
- Readout-segmented echo-planar imaging for diffusion-weighted imaging in the pelvis at 3T-A feasibility study.Acad Radiol. 2014; 21: 531-537
- DWI of the spinal cord with reduced FOV single-shot EPI.Magn Reson Med. 2008; 60: 468-473
- Clinical evaluation of reduced field-of-view diffusion-weighted imaging of the cervical and thoracic spine and spinal cord.AJNR Am J Neuroradiol. 2012; 33: 1860-1866
- Study of the reduced field-of-view diffusion-weighted imaging of the breast.Clin Breast Cancer. 2014; 14: 265-271
- Reduced-FOV excitation decreases susceptibility artifact in diffusion-weighted MRI with endorectal coil for prostate cancer detection.Magn Reson Imaging. 2015; 33: 56-62
- T(2)-weighted combined with diffusion-weighted images for evaluating prostatic transition zone tumors at 3Tesla.Future Oncol. 2013; 9: 585-593
- Comparison of 3.0- and 1.5-tesla diffusion-weighted imaging in the visibility of breast cancer.Radiat Med. 2008; 26: 15-20
- High resolution diffusion weighted magnetic resonance imaging of the pancreas using reduced field of view single-shot echo-planar imaging at 3T.Magn Reson Imaging. 2014; 32: 125-131
- Assessment of reduced field of view in diffusion tensor imaging of the lumbar nerve roots at 3 T.Eur Radiol. 2013; 23: 1361-1366
- High-resolution diffusion-weighted magnetic resonance imaging in patients with locally advanced breast cancer.Acad Radiol. 2012; 19: 526-534
- Reduced field-of-view diffusion imaging of the human spinal cord: comparison with conventional single-shot echo-planar imaging.AJNR Am J Neuroradiol. 2011; 32: 813-820
- Can reduced phase field of view diffusion weighted imaging increase diagnostic confidence when imaging the female pelvis [C].ISMRM, Milano, Italy2014
- Multi-parametric MR imaging of transition zone prostate cancer: imaging features, detection and staging.World J Radiol. 2010; 2: 180-187
- SNR dependence of optimal parameters for apparent diffusion coefficient measurements.IEEE Trans Med Imaging. 2011; 30: 424-437
- Applications of diffusion-weighted magnetic resonance imaging in renal cell carcinoma.Expert Rev Anticancer Ther. 2011; 11: 1017-1022
- Multi-parametric MRI findings of transitional zone prostate cancers: correlation with 3-dimensional transperineal mapping biopsy.Abdom Imaging. 2015; 40: 143-150
Article info
Publication history
Published online: March 25, 2015
Accepted:
March 10,
2015
Received in revised form:
February 28,
2015
Received:
September 25,
2014
Footnotes
☆This study was supported by the National Natural Science Foundation of China (grant number 81171307).
Identification
Copyright
© 2015 Elsevier Inc. Published by Elsevier Inc. All rights reserved.
