Diffusion-weighted imaging in the prostate: an apparent diffusion coefficient comparison of half-Fourier acquisition single-shot turbo spin-echo and echo planar imaging

被引:19
作者
Babourina-Brooks, Ben [1 ]
Cowin, Gary J. [1 ]
Wang, Deming [1 ]
机构
[1] Univ Queensland, Ctr Adv Imaging, Brisbane, Qld, Australia
关键词
Prostate; Diffusion; ADC; b value; DWI; EPI; HASTE; CANCER; MRI; VALUES; CARCINOMA; DIAGNOSIS; BIOPSY; TISSUE; TIME; MEN;
D O I
10.1016/j.mri.2011.09.024
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 ; 100207 ; 1009 ;
摘要
Prostate cancer detection using diffusion-weighted imaging is highly affected by the accuracy of the apparent diffusion coefficient (ADC) values in an image. Echo planar imaging (EPI) is a fast sequence commonly used for diffusion imaging but has inherent magnetic susceptibility and chemical shift artefacts associated. A diffusion sequence that is less affected by these artefacts is therefore advantageous. The half-Fourier acquisition single-shot turbo spin-echo (HASTE) sequence was chosen. The diffusion sequences were compared in image quality, repeatability of the ADC value and the effect on the ADC value with varied h values. Eight volunteers underwent three scans of each sequence, on a 1.5-T Siemens system, using b values of 0, 150, 300, 450, 600, 750, 900 and 1000 s/mm(2). ADC maps were created to address the reproducibility of the ADC value when using two b values compared to eight b values. The ADC value using all h values with the HASTE sequence gave the best performance in all tested categories. Both sequences gave significantly different ADC mean values for two b values compared to when using eight b values (P<.05) suggesting larger error is present when using two h values. HASTE was shown to be an improvement over EPI in terms of repeatability, signal variation within a region of interest and standard deviation over the volunteer set. The improved accuracy of the ADC value in the HASTE sequence makes it potentially a more sensitive tumor detection technique. (C) 2012 Elsevier Inc. All rights reserved.
引用
收藏
页码:189 / 194
页数:6
相关论文
共 33 条
[1]  
Bland JM, 1996, BRIT MED J, V313, P774
[2]   Looking for the optimal DTI acquisition scheme given a maximum scan time: are more b-values a waste of time? [J].
Correia, Marta Morgado ;
Carpenter, Thomas A. ;
Williams, Guy B. .
MAGNETIC RESONANCE IMAGING, 2009, 27 (02) :163-175
[3]   Magnetic resonance imaging in prostate cancer: the value of apparent diffusion coefficients for identifying malignant nodules [J].
DeSouza, N. M. ;
Reinsberg, S. A. ;
Scurr, E. D. ;
Brewster, J. M. ;
Payne, G. S. .
BRITISH JOURNAL OF RADIOLOGY, 2007, 80 (950) :90-95
[4]   Diffusion imaging of the prostate at 3.0 tesla [J].
Gibbs, P ;
Pickles, MD ;
Turnbull, LW .
INVESTIGATIVE RADIOLOGY, 2006, 41 (02) :185-188
[5]   Comparison of quantitative T2 mapping and diflusion-weighted imaging in the normal and pathologic prostate [J].
Gibbs, P ;
Tozer, DJ ;
Liney, GP ;
Turnbull, LW .
MAGNETIC RESONANCE IN MEDICINE, 2001, 46 (06) :1054-1058
[6]   Repeatability of echo-planar-based diffusion measurements of the human prostate at 3 T [J].
Gibbs, Peter ;
Pickles, Martin D. ;
Turnbull, Lindsay W. .
MAGNETIC RESONANCE IMAGING, 2007, 25 (10) :1423-1429
[7]   Diffusion tensor imaging of the normal prostate at 3 Tesla [J].
Gurses, Bengi ;
Kabakci, Neslihan ;
Kovanlikaya, Arzu ;
Firat, Zeynep ;
Bayram, Ali ;
Ulug, Aziz Muefit ;
Kovanlikaya, Ilhami .
EUROPEAN RADIOLOGY, 2008, 18 (04) :716-721
[8]   Combined T2-weighted and diffusion-weighted MRI for localization of prostate cancer [J].
Haider, Masoom A. ;
van der Kwast, Theodorus H. ;
Tanguay, Jeff ;
Evans, Andrew J. ;
Hashmi, Ali-Tahir ;
Lockwood, Gina ;
Trachtenberg, John .
AMERICAN JOURNAL OF ROENTGENOLOGY, 2007, 189 (02) :323-328
[9]   Endorectal diffusion-weighted imaging in prostate cancer to differentiate malignant and benign peripheral zone tissue [J].
Hosseinzadeh, K ;
Schwarz, SD .
JOURNAL OF MAGNETIC RESONANCE IMAGING, 2004, 20 (04) :654-661
[10]   In vivo measurement of the apparent diffusion coefficient in normal and malignant prostatic tissues using echo-planar imaging [J].
Issa, B .
JOURNAL OF MAGNETIC RESONANCE IMAGING, 2002, 16 (02) :196-200