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Comparison of CAIPIRINHA-VIBE, Radial-VIBE, and conventional VIBE sequences for dynamic contrast-enhanced (DCE) MRI: A validation study using a DCE-MRI phantom

Authors
 Bohyun Kim  ;  Chang Kyung Lee  ;  Nieun Seo  ;  Seung Soo Lee  ;  Jeong Kon Kim  ;  Yoonseok Choi  ;  Dong-Cheol Woo  ;  In Seong Kim  ;  Dominik Nickel  ;  Kyung Won Kim 
Citation
 Magnetic Resonance Imaging, Vol.34(5) : 638-644, 2016 
Journal Title
 Magnetic Resonance Imaging 
ISSN
 0730-725X 
Issue Date
2016
Abstract
OBJECTIVE: To validate radial acquisition of volumetric interpolated breath hold examination (Radial-VIBE) and the controlled aliasing in parallel imaging results in higher acceleration (CAIPIRINHA-VIBE) sequences for dynamic contrast-enhanced MRI (DCE-MRI) by comparing them to conventional VIBE sequence using a phantom. METHODS: On a DCE-MRI phantom containing various concentrations of NiCl2 solutions, six minutes of dynamic series and T1 mapping with variable flip angle methods were acquired using conventional VIBE, Radial-VIBE, and CAIPIRINHA-VIBE sequences on 3.0-T scanners. Signal stability and signal linearity were tested for dynamic series and the precision of R1 values were tested for T1 mapping series. The scans were repeatedly performed at two weeks and three months to test repeatability/reproducibility, assessed by within-subject coefficient of variation (WSCV). RESULTS: Signal stability over six minutes was excellent in all three sequences. Regarding the signal linearity, CAIPIRINHA-VIBE demonstrated the highest linear correlation (r=0.963), followed by conventional VIBE (r=0.959) and Radial-VIBE (r=0.953). Regarding the R1 precision, CAIPIRINHA-VIBE (r=0.985) was the most accurate, followed by conventional VIBE (r=0.861) and Radial-VIBE (r=0.442). CAIPIRINHA-VIBE showed excellent repeatability/reproducibility (WSCV, 1.79-6.71%) compared with Radial-VIBE (WSCV, 2.04-67.2%) and conventional VIBE (WSCV, 3.4-31.9%). CONCLUSION: In terms of signal stability, signal linearity, R1 precision, and repeatability/reproducibility, CAIPIRINHA-VIBE demonstrated outstanding performance for DCE-MRI compared with Radial-VIBE and conventional VIBE.
Full Text
http://www.sciencedirect.com/science/article/pii/S0730725X15003434?via%3Dihub
DOI
10.1016/j.mri.2015.11.011
Appears in Collections:
1. Journal Papers (연구논문) > 1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실)
Yonsei Authors
서니은(Seo, Nieun) ORCID logo https://orcid.org/0000-0001-8745-6454
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URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/152965
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