{"title":"简化腹部成像的快速磁共振成像技术：第 1 部分--了解一切","authors":"Ranu Taneja, Winfred Xi Tai Goh","doi":"10.1097/01.CDR.0001006240.88780.59","DOIUrl":null,"url":null,"abstract":"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.","PeriodicalId":29694,"journal":{"name":"Contemporary Diagnostic Radiology","volume":null,"pages":null},"PeriodicalIF":0.1000,"publicationDate":"2024-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Fast MRI Techniques for Abdominal Imaging Simplified: Part 1—Making Sense of It All\",\"authors\":\"Ranu Taneja, Winfred Xi Tai Goh\",\"doi\":\"10.1097/01.CDR.0001006240.88780.59\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"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.\",\"PeriodicalId\":29694,\"journal\":{\"name\":\"Contemporary Diagnostic Radiology\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.1000,\"publicationDate\":\"2024-02-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Contemporary Diagnostic Radiology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1097/01.CDR.0001006240.88780.59\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Contemporary Diagnostic Radiology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1097/01.CDR.0001006240.88780.59","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING","Score":null,"Total":0}
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。
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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