摘要
MRI具有无辐射、软组织分辨率高、多参数、多序列成像的优势,广泛应用于全身各系统。以往由于肺内氢质子含量低、呼吸运动伪影以及磁化率伪影等原因,MRI被认为不能用于肺部扫描。随着MRI技术的飞速发展,如并行采集技术、呼吸门控技术、新序列的研发以及人工智能的发展,肺部MRI成像逐渐完善。随着人们对辐射剂量和肺结节关注度的增加,肺部MRI的临床需求也逐渐曾加。本文将从MRI新技术在结节检出和良恶性鉴别两方面展开综述,包括放射状容积内插式屏气序列、超短回波时间、零回波时间、压缩感知容积内插式屏气序列、纵向弛豫时间定量成像和化学交换饱和转移等MRI新技术。
MRI has the advantages of radiation-free,high soft tissue resolution,multi-parameter and multi-sequence imaging,and is widely used in all systems of the whole body.In the past,due to the low content of hydrogen protons in the lung,respiratory motion artifacts and magnetic susceptibility artifacts,MRI was considered not to be used in lung scanning.With the rapid development of MRI technology,such as parallel acquisition technology,respiratory gating technology,and development of new sequences and artificial intelligence,lung MRI technology is gradually improved.With the increase of people's attention to radiation dose and pulmonary nodules,the clinical demand of pulmonary MRI is also increasing.This article will review the new technology of MRI from two aspects:nodule detection and benign and malignant differentiation,including star volume interpolated breath-hold examination sequence,ultrashort echo time,zero echo time,compression sensing volume interpolated breath-hold examination sequence,longitudinal relaxation time quantitative imaging,chemical exchange saturation transfer and other new MRI techniques.
作者
江叶海
蒲豆豆
于楠
JIANG Yehai;PU Doudou;YU Nan(School of Medical Technology,Shaanxi University of Chinese Medicine,Xianyang 712046,China;Department of Medical Imaging,Affiliated Hospital of Shaanxi University of Chinese Medicine,Xianyang 712000,China)
出处
《分子影像学杂志》
2023年第4期774-778,共5页
Journal of Molecular Imaging
基金
陕西省科技厅重点产业创新链(2021ZDLSF04-10)
陕西科技厅基础研究项目(2022JM-453)
国家级大学生创新创业训练计划(202210716013)。
