CAIPIRINHA-Dixon-TWIST (CDT)-VIBE MR imaging of the liver at 3.0T with gadoxetate disodium: a solution for transient arterial-phase respiratory motion-related artifacts?
To determine whether CAIPIRINHA-Dixon-TWIST (CDT) volume-interpolated breath-hold examination (VIBE) improves image quality by reducing gadoxetate-disodium-associated transient arterial-phase motion artefacts in magnetic resonance imaging (MRI) of the liver.
Materials and methods
MRI studies of the liver from 270 patients who had received gadoxetate disodium were retrospectively evaluated in regard to arterial timing accuracy and arterial phase motion artefact severity (VIBE: 90/270, CAIPIRINHA-VIBE: 90/270 and CDT-VIBE: 90/270 cases). Three independent and blinded readers assessed arterial phase timing and motion artefact severity (5-point scale). Interrater agreement was calculated by weighted kappa. Continuous variables were compared via a two-sided ANOVA, categorical variables via a χ2 test. An ordinal regression analysis was performed to identify other predictors of motion artefacts.
CDT-VIBE improved correct late arterial timing rates and reduced motion-related image deterioration rates. Successful late arterial liver visualisation was achieved in 56.7% (VIBE) compared with 66.7% (CAIPIRINHA-VIBE) and 84.4% (CDT-VIBE) (P < 0.0001). Good/excellent image quality was achieved in 56.7% vs. 66.7% and 73.3%, respectively (P = 0.03). Male sex negatively influenced image quality (P = 0.03).
CDT-VIBE increases the diagnostic utility of gadoxetate disodium-based liver MRI by reducing respiratory motion artefacts and optimising late arterial visualisation compared with VIBE and CAIPIRINHA-VIBE.
• CAIPIRINHA-Dixon-TWIST-VIBE-MRI (CDT) mitigates effects of acute transient dyspnoea caused by gadoxetate disodium.
• CDT improves late arterial imaging compared with VIBE and CAIPIRINHA-VIBE.
• The rate of ideal late arterial images is higher with CDT-VIBE vs. VIBE or CAIPI-VIBE.
• The impact of respiratory motion artefacts on arterial phase images can be reduced.
KeywordsDiagnostic imaging Contrast media Artefacts Magnetic resonance imaging Liver
Controlled Aliasing In Parallel Imaging Results In Higher Acceleration Factor
Time-resolved Angiography With Interleaved Stochastic Trajectories
Volume-interpolated Breath-hold Examination
Half Fourier Acquisition Single-shot Turbo Spin Echo
Magnetic Resonance Imaging
Transient Severe Motion
Picture Archiving And Communication System
The authors state that this work has not received any funding.
Compliance with ethical standards
The scientific guarantor of this publication is Benjamin Henninger.
Conflict of interest
The authors of this manuscript declare no relationships with any companies, whose products or services may be related to the subject matter of the article.
Statistics and biometry
Two of the authors have significant statistical expertise.
Written informed consent was not required for this study because of its retrospective nature
Institutional Review Board approval was obtained.
• performed at one institution
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