Susceptibility-weighted imaging: current status and future directions

被引：142

作者：

Liu, Saifeng ^{[1
]}

Buch, Sagar ^{[1
]}

Chen, Yongsheng ^{[2
]}

Choi, Hyun-Seok ^{[3
]}

Dai, Yongming ^{[4
]}

Habib, Charbel ^{[2
]}

Hub, Jiani ^{[2
]}

Jung, Joon-Yong ^{[3
]}

Luo, Yu ^{[5
]}

Utriainen, David ^{[4
]}

Wang, Meiyun ^{[6
]}

Wu, Dongmei ^{[7
]}

Xia, Shuang ^{[8
]}

Haacke, E. Mark ^{[1
,2
,4
,7
]}

机构：

[1] MRI Inst Biomed Res, Waterloo, ON, Canada

[2] Wayne State Univ, Dept Radiol, Detroit, MI USA

[3] Catholic Univ Korea, St Marys Hosp, Dept Radiol, Seoul, South Korea

[4] MRI Inst Biomed Res, Detroit, MI USA

[5] Branch Shanghai First Hosp, Dept Radiol, Shanghai, Peoples R China

[6] Henan Prov Peoples Hosp, Dept Radiol, Zhengzhou, Henan, Peoples R China

[7] East China Normal Univ, Shanghai Key Lab Magnet Resonance, Shanghai, Peoples R China

[8] Tianjin First Cent Hosp, Dept Radiol, Tianjin, Peoples R China

来源：

NMR IN BIOMEDICINE | 2017年 / 30卷 / 04期

基金：

加拿大健康研究院;

关键词：

susceptibility-weighted imaging; quantitative susceptibility mapping; phase imaging; multi-channel phase data combination; stroke; cerebral microbleeds; TRAUMATIC BRAIN-INJURY; INTERVERTEBRAL DISC DEGENERATION; CAROTID ATHEROSCLEROTIC PLAQUE; PROMINENT CORTICAL VEINS; ACUTE ISCHEMIC-STROKE; SPINAL-CORD-INJURY; MAGNETIC-RESONANCE; CEREBRAL MICROBLEEDS; MR VENOGRAPHY; HIGH-RESOLUTION;

D O I：

10.1002/nbm.3552

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 ;

摘要：

Susceptibility-weighted imaging (SWI) is a method that uses the intrinsic nature of local magnetic fields to enhance image contrast in order to improve the visibility of various susceptibility sources and to facilitate diagnostic interpretation. It is also the precursor to the concept of the use of phase for quantitative susceptibility mapping (QSM). Nowadays, SWI has become a widely used clinical tool to image deoxyhemoglobin in veins, iron deposition in the brain, hemorrhages, microbleeds and calcification. In this article, we review the basics of SWI, including data acquisition, data reconstruction and post-processing. In particular, the source of cusp artifacts in phase images is investigated in detail and an improved multi-channel phase data combination algorithm is provided. In addition, we show a few clinical applications of SWI for the imaging of stroke, traumatic brain injury, carotid vessel wall, siderotic nodules in cirrhotic liver, prostate cancer, prostatic calcification, spinal cord injury and intervertebral disc degeneration. As the clinical applications of SWI continue to expand both in and outside the brain, the improvement of SWI in conjunction with QSM is an important future direction of this technology. Copyright (C) 2016 John Wiley & Sons, Ltd.

引用

页数：22

共 185 条

[1] Fast and robust three-dimensional best path phase unwrapping algorithm [J].