文献检索文档翻译深度研究
Suppr Zotero 插件Zotero 插件
邀请有礼套餐&价格历史记录

新学期,新优惠

限时优惠:9月1日-9月22日

30天高级会员仅需29元

1天体验卡首发特惠仅需5.99元

了解详情
不再提醒
插件&应用
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
高级版
套餐订阅购买积分包
AI 工具
文献检索文档翻译深度研究
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 @ 2025

用于动脉瘤血流动力学高时间分辨率评估的磁粒子成像

Magnetic Particle Imaging for High Temporal Resolution Assessment of Aneurysm Hemodynamics.

作者信息

Sedlacik Jan, Frölich Andreas, Spallek Johanna, Forkert Nils D, Faizy Tobias D, Werner Franziska, Knopp Tobias, Krause Dieter, Fiehler Jens, Buhk Jan-Hendrik

机构信息

Department of Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.

Department of Product Development and Mechanical Engineering Design, Hamburg University of Technology, Hamburg, Germany.

出版信息

PLoS One. 2016 Aug 5;11(8):e0160097. doi: 10.1371/journal.pone.0160097. eCollection 2016.


DOI:10.1371/journal.pone.0160097
PMID:27494610
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4975468/
Abstract

PURPOSE: The purpose of this work was to demonstrate the capability of magnetic particle imaging (MPI) to assess the hemodynamics in a realistic 3D aneurysm model obtained by additive manufacturing. MPI was compared with magnetic resonance imaging (MRI) and dynamic digital subtraction angiography (DSA). MATERIALS AND METHODS: The aneurysm model was of saccular morphology (7 mm dome height, 5 mm cross-section, 3-4 mm neck, 3.5 mm parent artery diameter) and connected to a peristaltic pump delivering a physiological flow (250 mL/min) and pulsation rate (70/min). High-resolution (4 h long) 4D phase contrast flow quantification (4D pc-fq) MRI was used to directly assess the hemodynamics of the model. Dynamic MPI, MRI, and DSA were performed with contrast agent injections (3 mL volume in 3 s) through a proximally placed catheter. RESULTS AND DISCUSSION: 4D pc-fq measurements showed distinct pulsatile flow velocities (20-80 cm/s) as well as lower flow velocities and a vortex inside the aneurysm. All three dynamic methods (MPI, MRI, and DSA) also showed a clear pulsation pattern as well as delayed contrast agent dynamics within the aneurysm, which is most likely caused by the vortex within the aneurysm. Due to the high temporal resolution of MPI and DSA, it was possible to track the contrast agent bolus through the model and to estimate the average flow velocity (about 60 cm/s), which is in accordance with the 4D pc-fq measurements. CONCLUSIONS: The ionizing radiation free, 4D high resolution MPI method is a very promising tool for imaging and characterization of hemodynamics in human. It carries the possibility of overcoming certain disadvantages of other modalities like considerably lower temporal resolution of dynamic MRI and limited 2D characteristics of DSA. Furthermore, additive manufacturing is the key for translating powerful pre-clinical techniques into the clinic.

摘要

目的:本研究旨在展示磁粒子成像(MPI)评估通过增材制造获得的真实三维动脉瘤模型中血流动力学的能力。将MPI与磁共振成像(MRI)和动态数字减影血管造影(DSA)进行比较。 材料与方法:动脉瘤模型为囊状形态(穹顶高度7mm,横截面5mm,颈部3 - 4mm,母动脉直径3.5mm),连接到蠕动泵以输送生理流量(250mL/min)和搏动频率(70次/分钟)。使用高分辨率(4小时长)的四维相位对比血流定量(4D pc-fq)MRI直接评估模型的血流动力学。通过近端放置的导管注射造影剂(3秒内注射3mL)进行动态MPI、MRI和DSA检查。 结果与讨论:4D pc-fq测量显示出明显的搏动血流速度(20 - 80cm/s)以及较低的血流速度和动脉瘤内的涡流。所有三种动态方法(MPI、MRI和DSA)还显示出清晰的搏动模式以及动脉瘤内造影剂动力学延迟,这很可能是由动脉瘤内的涡流引起的。由于MPI和DSA的高时间分辨率,可以追踪造影剂团块通过模型并估计平均血流速度(约60cm/s),这与4D pc-fq测量结果一致。 结论:无电离辐射的四维高分辨率MPI方法是用于人体血流动力学成像和特征描述的非常有前景的工具。它有可能克服其他模态的某些缺点,如动态MRI的时间分辨率低得多以及DSA的二维特征有限。此外,增材制造是将强大的临床前技术转化为临床应用的关键。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c6e3/4975468/28476d92d4a8/pone.0160097.g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c6e3/4975468/87e86c053d3f/pone.0160097.g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c6e3/4975468/d5497c45a397/pone.0160097.g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c6e3/4975468/834c845bd483/pone.0160097.g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c6e3/4975468/28476d92d4a8/pone.0160097.g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c6e3/4975468/87e86c053d3f/pone.0160097.g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c6e3/4975468/d5497c45a397/pone.0160097.g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c6e3/4975468/834c845bd483/pone.0160097.g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c6e3/4975468/28476d92d4a8/pone.0160097.g004.jpg

相似文献

[1]
Magnetic Particle Imaging for High Temporal Resolution Assessment of Aneurysm Hemodynamics.

PLoS One. 2016-8-5

[2]
Estimating Pulsatile Flow Velocity using Four-Dimensional Digital Subtraction Angiography.

Annu Int Conf IEEE Eng Med Biol Soc. 2023-7

[3]
Magnetic particle imaging for in vivo blood flow velocity measurements in mice.

Phys Med Biol. 2018-3-16

[4]
Dual-energy CT angiography in the evaluation of intracranial aneurysms: image quality, radiation dose, and comparison with 3D rotational digital subtraction angiography.

AJR Am J Roentgenol. 2010-1

[5]
Noninvasive assessment of pulmonary hemodynamics in patients with chronic thromboembolic pulmonary hypertension by high temporal resolution phase-contrast MRI: correlation with simultaneous invasive pressure recordings.

Circ Cardiovasc Imaging. 2013-7-17

[6]
Quantification of Blood Velocity with 4D Digital Subtraction Angiography Using the Shifted Least-Squares Method.

AJNR Am J Neuroradiol. 2018-9-13

[7]
Optimizing the Quality of 4D-DSA Temporal Information.

AJNR Am J Neuroradiol. 2019-10-31

[8]
Advanced vascular imaging techniques.

Handb Clin Neurol. 2021

[9]
Quantitative Analysis of Vortical Blood Flow in the Thoracic Aorta Using 4D Phase Contrast MRI.

PLoS One. 2015-9-29

[10]
In Vitro Assessment of Flow Variability in an Intracranial Aneurysm Model Using 4D Flow MRI and Tomographic PIV.

Ann Biomed Eng. 2020-10

引用本文的文献

[1]
Advances in Vascular Diagnostics using Magnetic Particle Imaging (MPI) for Blood Circulation Assessment.

Adv Healthc Mater. 2024-9

[2]
iMPI: portable human-sized magnetic particle imaging scanner for real-time endovascular interventions.

Sci Rep. 2023-6-28

[3]
Development of Phantoms for Multimodal Magnetic Resonance Imaging and Magnetic Particle Imaging.

Polymers (Basel). 2022-9-20

[4]
[Magnetic particle imaging : From research to the prospect of clinical use].

Radiologie (Heidelb). 2022-6

[5]
Recent Advances in Multimodal Molecular Imaging of Cancer Mediated by Hybrid Magnetic Nanoparticles.

Polymers (Basel). 2021-9-3

[6]
Navigation of a magnetic micro-robot through a cerebral aneurysm phantom with magnetic particle imaging.

Sci Rep. 2021-7-7

[7]
Concept for using magnetic particle imaging for intraoperative margin analysis in breast-conserving surgery.

Sci Rep. 2021-6-29

[8]
Image-derived mean velocity measurement for prediction of coronary flow reserve in a canonical stenosis phantom using magnetic particle imaging.

PLoS One. 2021

[9]
In vivo magnetic particle imaging: angiography of inferior vena cava and aorta in rats using newly developed multicore particles.

Sci Rep. 2020-10-14

[10]
Visualization of spatial and temporal temperature distributions with magnetic particle imaging for liver tumor ablation therapy.

Sci Rep. 2020-5-4

本文引用的文献

[1]
Artifact free reconstruction with the system matrix approach by overscanning the field-free-point trajectory in magnetic particle imaging.

Phys Med Biol. 2016-1-21

[2]
Risk Factors for Growth of Intracranial Aneurysms: A Systematic Review and Meta-Analysis.

AJNR Am J Neuroradiol. 2016-4

[3]
Magnetic Particle Imaging tracks the long-term fate of in vivo neural cell implants with high image contrast.

Sci Rep. 2015-9-11

[4]
3D Printing of Intracranial Aneurysms Using Fused Deposition Modeling Offers Highly Accurate Replications.

AJNR Am J Neuroradiol. 2016-1

[5]
Combined Preclinical Magnetic Particle Imaging and Magnetic Resonance Imaging: Initial Results in Mice.

Rofo. 2015-5

[6]
Three-dimensional printing of anatomically accurate, patient specific intracranial aneurysm models.

J Neurointerv Surg. 2016-5

[7]
Magnetic particle imaging with tailored iron oxide nanoparticle tracers.

IEEE Trans Med Imaging. 2015-5

[8]
Aneurysm Recurrence Volumetry Is More Sensitive than Visual Evaluation of Aneurysm Recurrences.

Clin Neuroradiol. 2016-3

[9]
Preoperative simulations of endovascular treatment for a cerebral aneurysm using a patient-specific vascular silicone model.

Neurol Med Chir (Tokyo). 2013

[10]
A DSA-based method using contrast-motion estimation for the assessment of the intra-aneurysmal flow changes induced by flow-diverter stents.

AJNR Am J Neuroradiol. 2012-11-1

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

推荐工具

医学文档翻译智能文献检索