简化腹部成像的快速磁共振成像技术：第 1 部分--了解一切

Pub Date : 2024-02-15 DOI:10.1097/01.CDR.0001006240.88780.59

Ranu Taneja, Winfred Xi Tai Goh

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引用次数: 0

摘要

运动是腹部磁共振成像的主要限制因素。扫描时间与磁共振信号采集和 K 空间填充有关。K 空间是存储数字化磁共振信号的原始数据矩阵，信号经过傅立叶变换后成为图像。因此，快速采集信号、减少 K 空间填充和部分傅里叶技术可缩短扫描时间。本文旨在简化解释快速腹部磁共振成像各种技术背后的物理学原理。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Fast MRI Techniques for Abdominal Imaging Simplified: Part 1—Making Sense of It All

Motion is a major limiting factor in abdominal MRI. Scan time is related to MR signal acquisition and k-space filling. K-space is the raw data matrix that stores digitized MR signal, which is Fourier transformed into an image. So rapid signal acquisition, reduced k-space filling, and partial Fourier techniques can reduce scan time. This article aims to provide a simplified explanation of the physics behind various techniques for fast abdominal MRI.

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