Gadolinium-free MR in coarctation—can contrast-enhanced MR angiography be replaced?

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• 作者：Peter I. Kalmar^a ; ^b ; ^{peter.kalmar@medunigraz.at" class="auth_mail" title="E-mail the corresponding author} ; Martin Koestenberger^c ; Robert Marterer^a ; Sebastian Tschauner^a ; Erich Sorantin^a
• 关键词：Coarctation of the aorta ; Pediatric ; MR angiography ; Gadolinium
• 刊名：Clinical Imaging
• 出版年：2016
• 出版时间：May-June 2016
• 年：2016
• 卷：40
• 期：3
• 页码：414-418
• 全文大小：781 K

文摘

To determine the difference in vessel measurements, signal-to-noise ratio (SNR), and voxel size between contrast-enhanced and noncontrast magnetic resonance techniques in patients with coarctation of the aorta (CoA).

Materials and methods

In 39 patients, vessel size, SNR, and voxel size were compared in cine magnetic resonance imaging (MRI), gadolinium-free magnetic resonance angiography (Gd-free MRA), and contrast-enhanced MRA (ce-MRA).

Results

There was no significant difference in measurement and SNR, but there was a significant difference in voxel size (P < .001).

Conclusions

Our results show that, in CoA patients, monitoring of vessel size using cine MRI and Gd-free MRA is equivalent to ce-MRA while being less invasive.