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?

被引:26
作者
Gruber, Leonhard [1 ]
Rainer, Vera [1 ]
Plaikner, Michaela [1 ]
Kremser, Christian [1 ]
Jaschke, Werner [1 ]
Henninger, Benjamin [1 ]
机构
[1] Med Univ Innsbruck, Dept Radiol, Anichstr 35, A-6020 Innsbruck, Austria
关键词
Diagnostic imaging; Contrast media; Artefacts; Magnetic resonance imaging; Liver; BREATH-HOLD EXAMINATION; WATER SEPARATION TECHNIQUE; GD-EOB-DTPA; ENHANCED LIVER; HEPATOCELLULAR-CARCINOMA; GADOBENATE DIMEGLUMINE; REDUCING ARTIFACTS; EXAMINATION VIBE; DATA SYSTEM; LI-RADS;
D O I
10.1007/s00330-017-5210-4
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
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. 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 chi(2) 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. aEuro cent CAIPIRINHA-Dixon-TWIST-VIBE-MRI (CDT) mitigates effects of acute transient dyspnoea caused by gadoxetate disodium. aEuro cent CDT improves late arterial imaging compared with VIBE and CAIPIRINHA-VIBE. aEuro cent The rate of ideal late arterial images is higher with CDT-VIBE vs. VIBE or CAIPI-VIBE. aEuro cent The impact of respiratory motion artefacts on arterial phase images can be reduced.
引用
收藏
页码:2013 / 2021
页数:9
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