Fetal MRI: what's new? A short review.
Fetal MRI: what's new? A short review.
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DOI：
10.1186/s41747-023-00358-5
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发表时间：
2023-08-10
影响因子：
3.8
通讯作者：
中科院分区：
文献类型：
--
作者：
胎儿磁共振成像通常是在常规超声检查之后进行的第二级检查，通常利用形态和弥散成像序列。本文主要从新序列及其应用、从1.5-T磁场到3-T磁场的过渡以及人工智能软件的新应用三个方面对胎儿MRI的新颖性和新的应用作一综述。这项审查是通过查阅MEDLINE参考文献(PubMed)进行的，只包括用英语撰写的同行评议文章。在胎儿MRI中最重要的创新之一，我们发现了体素内的非相干运动模型，该模型允许区分胎儿和胎盘组织中的扩散和灌注成分。从1.5T磁场到3T磁场的过渡允许获得更高质量的图像，这要归功于更高的信噪比，同时也权衡了更频繁的伪影。运动矫正软件的应用使得通过获得更高质量的图像来克服运动伪影以及生成对术前规划有用的三维图像成为可能。这篇综述展示了胎儿MRI提供的最新进展，重点是新的序列，从1.5-T到3-T磁场的过渡，以及人工智能软件正在为新的诊断策略铺平道路的新作用。关键点·胎儿磁共振成像(MRI)是继超声之后的二线成像。·扩散加权成像和体素内非相干运动序列提供了关于胎儿微结构和血流灌注的定量生物标志物。·3-T磁共振成像提高了对大脑畸形的检测能力。·3-T磁共振对于身体和神经系统的适应症都很有用。·自动MRI运动跟踪克服了胎儿运动伪影，并改善了胎儿成像。
Fetal magnetic resonance imaging (fetal MRI) is usually performed as a second-level examination following routine ultrasound examination, generally exploiting morphological and diffusion MRI sequences. The objective of this review is to describe the novelties and new applications of fetal MRI, focusing on three main aspects: the new sequences with their applications, the transition from 1.5-T to 3-T magnetic field, and the new applications of artificial intelligence software. This review was carried out by consulting the MEDLINE references (PubMed) and including only peer-reviewed articles written in English. Among the most important novelties in fetal MRI, we find the intravoxel incoherent motion model which allow to discriminate the diffusion from the perfusion component in fetal and placenta tissues. The transition from 1.5-T to 3-T magnetic field allowed for higher quality images, thanks to the higher signal-to-noise ratio with a trade-off of more frequent artifacts. The application of motion-correction software makes it possible to overcome movement artifacts by obtaining higher quality images and to generate three-dimensional images useful in preoperative planning. Relevance statement This review shows the latest developments offered by fetal MRI focusing on new sequences, transition from 1.5-T to 3-T magnetic field and the emerging role of AI software that are paving the way for new diagnostic strategies. Key points • Fetal magnetic resonance imaging (MRI) is a second-line imaging after ultrasound. • Diffusion-weighted imaging and intravoxel incoherent motion sequences provide quantitative biomarkers on fetal microstructure and perfusion. • 3-T MRI improves the detection of cerebral malformations. • 3-T MRI is useful for both body and nervous system indications. • Automatic MRI motion tracking overcomes fetal movement artifacts and improve fetal imaging.
影响因子：
5.9
作者：
Yadav BK;Buch S;Krishnamurthy U;Jella P;Hernandez-Andrade E;Trifan A;Yeo L;Hassan SS;Mark Haacke E;Romero R;Neelavalli J
通讯作者：
Neelavalli J