• 文献检索
  • 文档翻译
  • 深度研究
  • 学术资讯
  • Suppr Zotero 插件Zotero 插件
  • 邀请有礼
  • 套餐&价格
  • 历史记录
应用&插件
Suppr Zotero 插件Zotero 插件浏览器插件Mac 客户端Windows 客户端微信小程序
定价
高级版会员购买积分包购买API积分包
服务
文献检索文档翻译深度研究API 文档MCP 服务
关于我们
关于 Suppr公司介绍联系我们用户协议隐私条款
关注我们

Suppr 超能文献

核心技术专利：CN118964589B侵权必究
粤ICP备2023148730 号-1Suppr @ 2026

文献检索

告别复杂PubMed语法，用中文像聊天一样搜索，搜遍4000万医学文献。AI智能推荐，让科研检索更轻松。

立即免费搜索

文件翻译

保留排版，准确专业，支持PDF/Word/PPT等文件格式，支持 12+语言互译。

免费翻译文档

深度研究

AI帮你快速写综述，25分钟生成高质量综述，智能提取关键信息，辅助科研写作。

立即免费体验

用于基于位移编码磁共振成像的心肌组织追踪的自适应后处理技术

Adaptive postprocessing techniques for myocardial tissue tracking with displacement-encoded MR imaging.

作者信息

Wen Han, Marsolo Keith A, Bennett Eric E, Kutten Kwame S, Lewis Ryan P, Lipps David B, Epstein Neal D, Plehn Jonathan F, Croisille Pierre

机构信息

National Heart, Lung and Blood Institute, National Institutes of Health, Bldg 10, B1D416, 10 Center Dr, Bethesda, MD 20892, USA.

出版信息

Radiology. 2008 Jan;246(1):229-40. doi: 10.1148/radiol.2461070053.

DOI:10.1148/radiol.2461070053
PMID:18096537
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2881596/
Abstract

UNLABELLED

The purpose of this study was to prospectively assess the effects of two adaptive postprocessing techniques on the evaluation of myocardial function with displacement-encoded magnetic resonance (MR) imaging, including sensitivity for abnormal wall motion, with two-dimensional echocardiography as the reference standard. Sixteen patients (11 men, five women; age range, 26-74 years) and 12 volunteers (six men, six women; age range, 29-53 years) underwent breath-hold MR imaging. Institutional review board approval and informed consent were obtained. Adaptive phase-unwrapping and spatial filtering techniques were compared with conventional phase-unwrapping and spatial filtering techniques. Use of the adaptive techniques led to a reduced rate of failure with the phase-unwrapping technique from 18.9% to 0.6% (P < .001), resulted in lower variability of segmental strain measurements among healthy volunteers (P < .001 to P = .02), and increased the sensitivity of quantitative detection of abnormal segments in patients from 82.5% to 87.7% (P = .034). The adaptive techniques improved the semiautomated postprocessing of displacement-encoded cardiac images and increased the sensitivity of detection of abnormal wall motion in patients.

SUPPLEMENTAL MATERIAL

http://radiology.rsnajnls.org/cgi/content/full/246/1/229/DC1.

摘要

未标注

本研究旨在以前瞻性方式评估两种自适应后处理技术对采用位移编码磁共振（MR）成像评估心肌功能的影响，包括对异常室壁运动的敏感性，并以二维超声心动图作为参考标准。16例患者（11例男性，5例女性；年龄范围26 - 74岁）和12名志愿者（6例男性，6例女性；年龄范围29 - 53岁）接受了屏气MR成像检查。获得了机构审查委员会的批准并取得了知情同意。将自适应相位解缠和空间滤波技术与传统相位解缠和空间滤波技术进行了比较。使用自适应技术使相位解缠技术的失败率从18.9%降至0.6%（P <.001），降低了健康志愿者节段应变测量的变异性（P <.001至P =.02），并将患者异常节段定量检测的敏感性从82.5%提高到87.7%（P =.034）。自适应技术改善了位移编码心脏图像的半自动后处理，并提高了患者异常室壁运动检测的敏感性。

补充材料

http://radiology.rsnajnls.org/cgi/content/full/246/1/229/DC1

相似文献

1
Adaptive postprocessing techniques for myocardial tissue tracking with displacement-encoded MR imaging.用于基于位移编码磁共振成像的心肌组织追踪的自适应后处理技术
Radiology. 2008 Jan;246(1):229-40. doi: 10.1148/radiol.2461070053.
2
Locally advanced rectal cancer: MR imaging in prediction of response after preoperative chemotherapy and radiation therapy.局部进展期直肠癌：术前化疗和放疗后反应预测中的磁共振成像
Radiology. 2009 Mar;250(3):730-9. doi: 10.1148/radiol.2503080310.
3
Patients with plasma cell disorders examined at whole-body dynamic contrast-enhanced MR imaging: initial experience.全身动态对比增强磁共振成像检查的浆细胞疾病患者：初步经验
Radiology. 2009 Mar;250(3):905-15. doi: 10.1148/radiol.2503081017.
4
MR defecography in patients with fecal incontinence: imaging findings and their effect on surgical management.大便失禁患者的磁共振排粪造影：影像学表现及其对手术治疗的影响
Radiology. 2006 Aug;240(2):449-57. doi: 10.1148/radiol.2401050648. Epub 2006 Jun 26.
5
Accuracy of quantitative MR vessel wall imaging applying a semi-automated gradient detection algorithm--a validation study.应用半自动梯度检测算法的定量磁共振血管壁成像准确性——一项验证研究。
J Cardiovasc Magn Reson. 2004;6(4):895-907. doi: 10.1081/jcmr-200036198.
6
Minimally invasive autopsy: an alternative to conventional autopsy?微创尸检：传统尸检的替代方法？
Radiology. 2009 Mar;250(3):897-904. doi: 10.1148/radiol.2503080421.
7
Tumor burden in patients with neurofibromatosis types 1 and 2 and schwannomatosis: determination on whole-body MR images.1型和2型神经纤维瘤病及神经鞘瘤病患者的肿瘤负荷：基于全身磁共振成像的测定
Radiology. 2009 Mar;250(3):665-73. doi: 10.1148/radiol.2503080700.
8
Spatially resolved imaging of myocardial function with strain-encoded MR: comparison with delayed contrast-enhanced MR imaging after myocardial infarction.基于应变编码磁共振成像的心肌功能空间分辨成像：与心肌梗死后延迟对比增强磁共振成像的比较
Radiology. 2004 Nov;233(2):596-602. doi: 10.1148/radiol.2332031676.
9
MR myocardial perfusion imaging with k-space and time broad-use linear acquisition speed-up technique: feasibility study.采用k空间和时间广义线性采集加速技术的磁共振心肌灌注成像：可行性研究
Radiology. 2007 Dec;245(3):863-71. doi: 10.1148/radiol.2453061701.
10
Colorectal liver metastases: contrast agent diffusion coefficient for quantification of contrast enhancement heterogeneity at MR imaging.结直肠癌肝转移：磁共振成像中用于量化对比增强异质性的对比剂扩散系数
Radiology. 2008 Sep;248(3):901-9. doi: 10.1148/radiol.2491071936.

引用本文的文献

1
Systolic myocardial dysfunction in patients with type 2 diabetes mellitus: identification at MR imaging with cine displacement encoding with stimulated echoes.2 型糖尿病患者的收缩性心肌功能障碍：电影位移编码的刺激回波磁共振成像的识别。
Radiology. 2012 Nov;265(2):402-9. doi: 10.1148/radiol.12112571. Epub 2012 Aug 28.
2
Mapping right ventricular myocardial mechanics using 3D cine DENSE cardiovascular magnetic resonance.使用三维电影 DENSE 心血管磁共振成像技术对右心室心肌力学进行成像。
J Cardiovasc Magn Reson. 2012 Jan 11;14(1):4. doi: 10.1186/1532-429X-14-4.
3
Phase II trials in heart failure: the role of cardiovascular imaging.

本文引用的文献

1
Phase unwrapping of MR phase images using Poisson equation.利用泊松方程对磁共振相位图像进行相位解缠。
IEEE Trans Image Process. 1995;4(5):667-76. doi: 10.1109/83.382500.
2
Tag and contour detection in tagged MR images of the left ventricle.左心室标记磁共振图像中的标记和轮廓检测。
IEEE Trans Med Imaging. 1994;13(1):74-88. doi: 10.1109/42.276146.
3
Tracking myocardial deformation using phase contrast MR velocity fields: a stochastic approach.使用相位对比磁共振速度场追踪心肌变形：一种随机方法。
心力衰竭的 II 期临床试验：心血管成像的作用。
Am Heart J. 2011 Jul;162(1):3-15.e3. doi: 10.1016/j.ahj.2011.03.031.
4
Nonechocardiographic imaging in evaluation for cardiac resynchronization therapy.心脏再同步治疗评估中的非超声心动图成像
Circ Cardiovasc Imaging. 2011 May;4(3):334-43. doi: 10.1161/CIRCIMAGING.111.963504.
5
A practical approach to imaging dyssynchrony for cardiac resynchronization therapy.一种用于心脏再同步治疗的失同步成像的实用方法。
Heart Fail Rev. 2011 Jul;16(4):397-410. doi: 10.1007/s10741-010-9220-4.
6
Simultaneous myocardial strain and dark-blood perfusion imaging using a displacement-encoded MRI pulse sequence.利用位移编码 MRI 脉冲序列进行心肌应变成像和黑血灌注成像。
Magn Reson Med. 2010 Sep;64(3):787-98. doi: 10.1002/mrm.22461.
7
Analytical method to measure three-dimensional strain patterns in the left ventricle from single slice displacement data.从单一切片位移数据测量左心室三维应变模式的分析方法。
J Cardiovasc Magn Reson. 2010 Jun 1;12(1):33. doi: 10.1186/1532-429X-12-33.
8
3D left ventricular strain from unwrapped harmonic phase measurements.基于未包裹的谐相位测量的左心室三维应变。
J Magn Reson Imaging. 2010 Apr;31(4):854-62. doi: 10.1002/jmri.22099.
9
Improved arterial spin labeling after myocardial infarction in mice using cardiac and respiratory gated look-locker imaging with fuzzy C-means clustering.应用心脏和呼吸门控 Look-Locker 成像与模糊 C-均值聚类技术改善心肌梗死后小鼠的动脉自旋标记。
Magn Reson Med. 2010 Mar;63(3):648-57. doi: 10.1002/mrm.22280.
10
Role of cardiac MRI and nuclear imaging in cardiac resynchronization therapy.心脏磁共振成像和核医学成像在心脏再同步治疗中的作用。
Nat Rev Cardiol. 2009 Dec;6(12):759-70. doi: 10.1038/nrcardio.2009.189. Epub 2009 Nov 3.
IEEE Trans Med Imaging. 1996;15(4):453-65. doi: 10.1109/42.511749.
4
[Cardiac MR tagging: optimization of sequence parameters and comparison at 1.5 T and 3.0 T in a volunteer study].[心脏磁共振标记：序列参数优化及在1.5T和3.0T下的志愿者研究比较]
Rofo. 2006 May;178(5):515-24. doi: 10.1055/s-2006-926473. Epub 2006 Feb 10.
5
Multi-detector row cardiac computed tomography accurately quantifies right and left ventricular size and function compared with cardiac magnetic resonance.与心脏磁共振成像相比，多排探测器心脏计算机断层扫描能准确量化右心室和左心室的大小及功能。
Am Heart J. 2006 Mar;151(3):736-44. doi: 10.1016/j.ahj.2005.04.029.
6
Navigator gated high temporal resolution tissue phase mapping of myocardial motion.导航门控心肌运动的高时间分辨率组织相位映射
Magn Reson Med. 2006 Apr;55(4):937-42. doi: 10.1002/mrm.20808.
7
Unwrapping of MR phase images using a Markov random field model.使用马尔可夫随机场模型对磁共振相位图像进行解缠。
IEEE Trans Med Imaging. 2006 Jan;25(1):128-36. doi: 10.1109/TMI.2005.861021.
8
Acute myocardial infarction: assessment of left ventricular function with 16-detector row spiral CT versus MR imaging--study in pigs.急性心肌梗死：16排螺旋CT与磁共振成像对左心室功能的评估——猪的研究
Radiology. 2005 Jul;236(1):112-7. doi: 10.1148/radiol.2361040923. Epub 2005 Jun 13.
9
Cardiovascular magnetic resonance: structure, function, perfusion, and viability.心血管磁共振：结构、功能、灌注及存活心肌评估
J Nucl Cardiol. 2005 May-Jun;12(3):324-36. doi: 10.1016/j.nuclcard.2005.02.001.
10
Assessment of left ventricular torsional deformation by Doppler tissue imaging: validation study with tagged magnetic resonance imaging.通过多普勒组织成像评估左心室扭转变形：与标记磁共振成像的验证研究。
Circulation. 2005 Mar 8;111(9):1141-7. doi: 10.1161/01.CIR.0000157151.10971.98. Epub 2005 Feb 28.