Transient arterial phase respiratory motion-related artifact in MR imaging of the liver: an analysis of four different gadolinium-based contrast agents

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• 作者：Mansi R. Shah¹ ; Milana Flusberg ; ¹ ; ^{mflusberg@gmail.com} ; Viktoriya Paroder¹ ; Alla M. Rozenblit¹ ; Victoria Chernyak¹
• 关键词：Respiratory motion artifact ; Gadoxetate ; Hepatic arterial phase ; Transient respiratory motion
• 刊名：Clinical Imaging
• 出版年：2017
• 出版时间：January-February 2017
• 年：2017
• 卷：41
• 期：Complete
• 页码：23-27
• 全文大小：381 K
• 卷排序：41

文摘

The purpose was to compare hepatic arterial phase (HAP) respiratory motion artifact (RMA) between gadoxetate, gadobutrol, gadopentetate, and gadobenate.Materials/methodsTwo hundred cases of each gadolinium agent were included. RMA was assigned using 5-point Likert scale (1=no motion, 5=extreme motion) on precontrast and HAP. RMA increase (increase ≥1 on HAP from precontrast) was the outcome in logistic regression.ResultsOdds of RMA increase for gadoxetate were 5.5 (P<.001), 3.6 (P=.034), and 9.5 (P<.001) times higher than gadobutrol, gadopentetate, and gadobenate, respectively. Gadolinium volume and dose were not independent predictors of RMA increase.ConclusionGadoxetate has increased odds of RMA compared with other gadolinium agents; tight contrast bolus is not a contributor.