Zoomed echo-planar imaging using parallel transmission: impact on image quality of diffusion-weighted imaging of the prostate at 3T
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| 008 | 210128e20150101xx s 000 0 eng | ||
| 024 | 7 | 0 | |a 10.1007/s00261-014-0181-2 |2 doi |
| 035 | |a (NATIONALLICENCE)springer-10.1007/s00261-014-0181-2 | ||
| 245 | 0 | 0 | |a Zoomed echo-planar imaging using parallel transmission: impact on image quality of diffusion-weighted imaging of the prostate at 3T |h [Elektronische Daten] |c [Andrew Rosenkrantz, Hersh Chandarana, Josef Pfeuffer, Michael Triolo, Mohammed Shaikh, David Mossa, Christian Geppert] |
| 520 | 3 | |a Purpose: To assess impact of two-channel parallel transmission (pTx) with focused excitation [zoomed echo-planar imaging (EPI)] on image quality of prostate diffusion-weighted imaging (DWI) at 3T. Methods: 27 male volunteers (27±8years) underwent 3T prostate MRI using 2-channel radiofrequency-transmit system and 18-channel torso receive coil. Scans included EPI-DWI sequence (b values 50, 500, 1000s/mm2) acquired both with standard sinc pulse and 2-channel pTX with focused excitation, each acquired at large-field-of-view (FOV) (20×20cm) and small-FOV (14×14cm). An abdominal radiologist scored b-1000 images and ADC maps for image quality measures. Sequences were compared using paired Wilcoxon tests. Results: pTx with focused excitation showed significant improvements compared with standard DWI on b-1000 images at large-FOV for the absence of wrap and overall image quality (p≤0.049); on b-1000 images at small-FOV for reduced distortion of prostate, absence of ghosting, absence of wrap, clarity of prostate capsule, clarity of peripheral/transition zone boundary, clarity of peri-urethral region, and overall image quality (p≤0.004); and on ADC maps at small-FOV for reduced distortion of prostate, sharpness of prostate, clarity of prostatic capsule, clarity of peri-urethral region, and overall image quality (p=0.002-0.036). When compared with standard large-FOV images, small-FOV images obtained using pTx with focused excitation showed no significant difference on the b-1000 images for any feature (p≥0.175), while showing significant improvements on the ADC maps in terms of reduced distortion, absence of ghosting, and absence of wrap (p=0.010-0.030). Conclusion: Zoomed DWI using 2-channel pTx reduced artifacts and improved image quality for 3T prostate DWI; benefit was most apparent for small-FOV images. | |
| 540 | |a Springer Science+Business Media New York, 2014 | ||
| 690 | 7 | |a Prostate cancer |2 nationallicence | |
| 690 | 7 | |a MRI |2 nationallicence | |
| 690 | 7 | |a Diffusion-weighted imaging |2 nationallicence | |
| 690 | 7 | |a 3T |2 nationallicence | |
| 690 | 7 | |a Parallel transmission |2 nationallicence | |
| 700 | 1 | |a Rosenkrantz |D Andrew |u Department of Radiology, NYU Langone Medical Center, 550 First Avenue, 10016, New York, NY, USA |4 aut | |
| 700 | 1 | |a Chandarana |D Hersh |u Department of Radiology, NYU Langone Medical Center, 550 First Avenue, 10016, New York, NY, USA |4 aut | |
| 700 | 1 | |a Pfeuffer |D Josef |u Siemens Healthcare, Allee am Röthelheimpark 2, 91052, Erlangen, Germany |4 aut | |
| 700 | 1 | |a Triolo |D Michael |u Department of Radiology, NYU Langone Medical Center, 550 First Avenue, 10016, New York, NY, USA |4 aut | |
| 700 | 1 | |a Shaikh |D Mohammed |u Department of Radiology, NYU Langone Medical Center, 550 First Avenue, 10016, New York, NY, USA |4 aut | |
| 700 | 1 | |a Mossa |D David |u Department of Radiology, NYU Langone Medical Center, 550 First Avenue, 10016, New York, NY, USA |4 aut | |
| 700 | 1 | |a Geppert |D Christian |u Siemens Medical Solutions MR R&D, 660 First Avenue, 10016, New York, NY, USA |4 aut | |
| 773 | 0 | |t Abdominal Imaging |d Springer US; http://www.springer-ny.com |g 40/1(2015-01-01), 120-126 |x 0942-8925 |q 40:1<120 |1 2015 |2 40 |o 261 | |
| 856 | 4 | 0 | |u https://doi.org/10.1007/s00261-014-0181-2 |q text/html |z Onlinezugriff via DOI |
| 898 | |a BK010053 |b XK010053 |c XK010000 | ||
| 900 | 7 | |a Metadata rights reserved |b Springer special CC-BY-NC licence |2 nationallicence | |
| 908 | |D 1 |a research-article |2 jats | ||
| 949 | |B NATIONALLICENCE |F NATIONALLICENCE |b NL-springer | ||
| 950 | |B NATIONALLICENCE |P 856 |E 40 |u https://doi.org/10.1007/s00261-014-0181-2 |q text/html |z Onlinezugriff via DOI | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Rosenkrantz |D Andrew |u Department of Radiology, NYU Langone Medical Center, 550 First Avenue, 10016, New York, NY, USA |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Chandarana |D Hersh |u Department of Radiology, NYU Langone Medical Center, 550 First Avenue, 10016, New York, NY, USA |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Pfeuffer |D Josef |u Siemens Healthcare, Allee am Röthelheimpark 2, 91052, Erlangen, Germany |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Triolo |D Michael |u Department of Radiology, NYU Langone Medical Center, 550 First Avenue, 10016, New York, NY, USA |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Shaikh |D Mohammed |u Department of Radiology, NYU Langone Medical Center, 550 First Avenue, 10016, New York, NY, USA |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Mossa |D David |u Department of Radiology, NYU Langone Medical Center, 550 First Avenue, 10016, New York, NY, USA |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Geppert |D Christian |u Siemens Medical Solutions MR R&D, 660 First Avenue, 10016, New York, NY, USA |4 aut | ||
| 950 | |B NATIONALLICENCE |P 773 |E 0- |t Abdominal Imaging |d Springer US; http://www.springer-ny.com |g 40/1(2015-01-01), 120-126 |x 0942-8925 |q 40:1<120 |1 2015 |2 40 |o 261 | ||