4D流磁共振成像技术背景。

IF 2.5 3区医学 Q2 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING

Magnetic Resonance in Medical Sciences Pub Date : 2022-03-01 Epub Date: 2022-02-11 DOI:10.2463/mrms.rev.2021-0104

Masaki Terada, Yasuo Takehara, Haruo Isoda, Tetsuya Wakayama, Atsushi Nozaki

{"title":"4D流磁共振成像技术背景。","authors":"Masaki Terada, Yasuo Takehara, Haruo Isoda, Tetsuya Wakayama, Atsushi Nozaki","doi":"10.2463/mrms.rev.2021-0104","DOIUrl":null,"url":null,"abstract":"Recently, the hemodynamic assessments with 3D cine phase-contrast (PC) MRI (4D flow MRI) have attracted considerable attention from clinicians. Unlike 2D cine PC MRI, the technique allows for cardiac phase-resolved data acquisitions of flow velocity vectors within the entire FOV during a clinically viable period. Thus, the method has enabled retrospective flowmetry in the spatial and temporal axes, which are essential to derive hemodynamic parameters related to vascular homeostasis and those to the progression of the pathologies. Accelerations in imaging are critical for this technology to be clinically viable; however, a high SNR or velocity-to-noise ratio (VNR) is also vital for accurate flow measurements. In this chapter, the technologies enabling this difficult balance are discussed.","PeriodicalId":18119,"journal":{"name":"Magnetic Resonance in Medical Sciences","volume":"21 2","pages":"267-277"},"PeriodicalIF":2.5000,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/b9/90/mrms-21-267.PMC9680548.pdf","citationCount":"6","resultStr":"{\"title\":\"Technical Background for 4D Flow MR Imaging.\",\"authors\":\"Masaki Terada, Yasuo Takehara, Haruo Isoda, Tetsuya Wakayama, Atsushi Nozaki\",\"doi\":\"10.2463/mrms.rev.2021-0104\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Recently, the hemodynamic assessments with 3D cine phase-contrast (PC) MRI (4D flow MRI) have attracted considerable attention from clinicians. Unlike 2D cine PC MRI, the technique allows for cardiac phase-resolved data acquisitions of flow velocity vectors within the entire FOV during a clinically viable period. Thus, the method has enabled retrospective flowmetry in the spatial and temporal axes, which are essential to derive hemodynamic parameters related to vascular homeostasis and those to the progression of the pathologies. Accelerations in imaging are critical for this technology to be clinically viable; however, a high SNR or velocity-to-noise ratio (VNR) is also vital for accurate flow measurements. In this chapter, the technologies enabling this difficult balance are discussed.\",\"PeriodicalId\":18119,\"journal\":{\"name\":\"Magnetic Resonance in Medical Sciences\",\"volume\":\"21 2\",\"pages\":\"267-277\"},\"PeriodicalIF\":2.5000,\"publicationDate\":\"2022-03-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/b9/90/mrms-21-267.PMC9680548.pdf\",\"citationCount\":\"6\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Magnetic Resonance in Medical Sciences\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://doi.org/10.2463/mrms.rev.2021-0104\",\"RegionNum\":3,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2022/2/11 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"Q2\",\"JCRName\":\"RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Magnetic Resonance in Medical Sciences","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.2463/mrms.rev.2021-0104","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2022/2/11 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING","Score":null,"Total":0}

引用次数: 6

摘要

近年来，利用3D电影相衬(PC) MRI (4D血流MRI)进行血流动力学评估引起了临床医生的广泛关注。与2D电影PC MRI不同，该技术允许在临床可行的时间段内获得整个视场内血流速度矢量的心脏相位分辨数据。因此，该方法能够在空间和时间轴上进行回顾性血流测量，这对于获得与血管稳态和病理进展相关的血流动力学参数至关重要。加速成像对于这项技术的临床可行性至关重要;然而，高信噪比或速度噪声比(VNR)对于精确的流量测量也至关重要。在本章中，将讨论实现这一困难平衡的技术。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Technical Background for 4D Flow MR Imaging.

查看原文本刊更多论文

Technical Background for 4D Flow MR Imaging.

Recently, the hemodynamic assessments with 3D cine phase-contrast (PC) MRI (4D flow MRI) have attracted considerable attention from clinicians. Unlike 2D cine PC MRI, the technique allows for cardiac phase-resolved data acquisitions of flow velocity vectors within the entire FOV during a clinically viable period. Thus, the method has enabled retrospective flowmetry in the spatial and temporal axes, which are essential to derive hemodynamic parameters related to vascular homeostasis and those to the progression of the pathologies. Accelerations in imaging are critical for this technology to be clinically viable; however, a high SNR or velocity-to-noise ratio (VNR) is also vital for accurate flow measurements. In this chapter, the technologies enabling this difficult balance are discussed.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Magnetic Resonance in Medical Sciences RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING-

CiteScore

5.80

自引率

20.00%

发文量

审稿时长

>12 weeks

期刊介绍： Magnetic Resonance in Medical Sciences (MRMS or Magn Reson Med Sci) is an international journal pursuing the publication of original articles contributing to the progress of magnetic resonance in the field of biomedical sciences including technical developments and clinical applications. MRMS is an official journal of the Japanese Society for Magnetic Resonance in Medicine (JSMRM).