Intravoxel incoherent motion MR imaging for breast lesions: comparison and correlation with pharmacokinetic evaluation from dynamic contrast-enhanced MR imaging

2016 ◽  
Vol 26 (11) ◽  
pp. 3888-3898 ◽  
Author(s):  
Chunling Liu ◽  
Kun Wang ◽  
Queenie Chan ◽  
Zaiyi Liu ◽  
Jine Zhang ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Intravoxel Incoherent Motion ◽  
Breast Lesions ◽  
Dynamic Contrast Enhanced ◽  
Contrast Enhanced ◽  
Pharmacokinetic Evaluation

Breast Lesions: Evaluation with Dynamic Contrast-enhanced T1-weighted MR Imaging and with T2*-weighted First-Pass Perfusion MR Imaging

Radiology ◽  
2000 ◽  
Vol 216 (2) ◽  
pp. 545-553 ◽  
Author(s):  
Kjell A. Kvistad ◽  
Jana Rydland ◽  
Jari Vainio ◽  
Hanne B. Smethurst ◽  
Steinar Lundgren ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Breast Lesions ◽  
Dynamic Contrast Enhanced ◽  
Pass Perfusion ◽  
Contrast Enhanced ◽  
First Pass ◽  
Perfusion Mr ◽  
Perfusion Mr Imaging ◽  
First Pass Perfusion

scholarly journals Assessment of Correlation between Intravoxel Incoherent Motion Diffusion Weighted MR Imaging and Dynamic Contrast-Enhanced MR Imaging of Sacroiliitis with Ankylosing Spondylitis

2017 ◽  
Vol 2017 ◽  
pp. 1-9
Author(s):  
Yinghua Zhao ◽  
Qun Zhang ◽  
Wei Li ◽  
Yanqiu Feng ◽  
Yihao Guo ◽  
...  
Keyword(s):  
Ankylosing Spondylitis ◽  
Mr Imaging ◽  
Molecular Diffusion ◽  
Critical Role ◽  
Intravoxel Incoherent Motion ◽  
Maximum Enhancement ◽  
Dce Mri ◽  
Dynamic Contrast Enhanced ◽  
Diffusion Weighted ◽  
Contrast Enhanced

The relationships between IVIM and DCE-MRI parameters in AS are not clear. We explore the correlation between intravoxel incoherent motion (IVIM) diffusion weighted imaging (DWI) and dynamic contrast-enhanced (DCE) parameters obtained on MR images in patients with ankylosing spondylitis (AS). Forty-four patients with AS were prospectively examined using a 1.5-T MR system. IVIM DWI was performed with 11 b values (range, 0–800 s/mm2) for all patients. The correlation coefficients between IVIM and DCE-MRI parameters were analyzed using Spearman’s method. Our results showed that intra- and interobserver reproducibility were excellent to relatively good (ICC = 0.804–0.981; narrow width of 95% limits of agreement). Moderate positive correlations were observed between pure molecular diffusion (Ds) and maximum enhancement (ME) and relative enhancement (RE) (r = 0.700, P<0.001; r=0.607, P < 0.001, resp.). Perfusion-related diffusion (Df) showed negative moderate correlation with ME (r = -0.608, P < 0.001). However, no correlation was observed between perfusion fraction (f) and any parameters of ME, RE, TTP, and BE (r = −0.093–0.213; P > 0.165). In conclusion, the IVIM parameters, especially f, might play a critical role in detecting the progression of AS, because it can provide more perfusion information compared with DCE-MRI; besides the IVIM MRI is a noninvasive method.

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