Quantitative MRI for characterizing heart failure with preserved ejection fraction
Quantitative MRI for characterizing heart failure with preserved ejection fraction
批准号:
9311349
负责人:
EDWARD VR DIBELLA
金额:
$53.86万
依托单位:
依托单位国家:
美国
项目类别:
财政年份:
2017
资助国家:
美国
项目状态:
已结题
起止时间:
2017-05-15 至 2021-04-30
关键词:
AddressAdvanced DevelopmentAnimal ModelAnimalsAreaBiological MarkersBloodBreathingCardiacCardiovascular systemCessation of lifeCollaborationsComplementConflict (Psychology)DataDevelopmentDiagnosisDiagnosticDiastoleDiseaseDyspneaEFRACEconomic BurdenEpidemicEventEvolutionFailureFamily suidaeFibrosisFunctional disorderFutureHeartHeart DiseasesHeart failureHumanKnowledgeMagnetic Resonance ImagingMeasurementMeasuresMethodsMicrospheresMicrovascular DysfunctionModelingMonitorMotionMyocardial perfusionMyocardial tissuePatientsPerformancePerfusionPharmacotherapyPhenotypePhysiologic pulsePlayPopulationPositron-Emission TomographyPrognostic MarkerPublic HealthRadialRoleScanningSliceSymptomsSyndromeSystoleTechniquesTechnologyTestingTimeUtahValidationbasecoronary fibrosisdesigndisabilityeffective therapyhemodynamicsimaging approachimprovedinsightinstrumentmortalityperfusion imagingprogramsreconstructionresearch clinical testingserial imagingsuccesstemporal measurementtooltreatment response
中文摘要
心力衰竭与保留的射血分数(HFpEF)有关,目前正在进行深入的研究,包括几个。
这些药物和疗法的大规模临床试验都未能让患者受益。更好地描述这些患者的特征是不可能的。
重要的是,还有许多关于微血管疾病和血管重塑的问题有待解决。
HFpEF是一种新的磁共振成像方法,是一种理想的方法,可以更好地表征和理解HFpEF。
并对新的治疗方法做出更好的回应。这个新的项目旨在帮助我们开发、评估和应用新的磁共振成像技术方法。
对于高端血流灌注成像,这些方法将无法估计整个心脏循环的Endo/Epio比率。
在自由呼吸医学研究中,这些研究将与其他新的磁共振成像技术、测量方法和血液一起使用。
生物标记物有助于提供有关微血管疾病的新的临床信息。这项研究具有特殊的临床价值。
正在评估HFpEF。
本项目研究的目的和方法是:(1)开发技术,比较新的2D和径向技术。
多切片(SMS)技术和3D星形堆叠(SOS)技术用于收购和数据重建方法。
定量脑血流灌注测量.*(2)需要免费验证其新的2D/RADIUS短消息服务和3D/SOS服务
在HFpEF的动物模型中加入呼吸和方法,人类的呼吸和呼吸方法将进一步描述这一新的动物模型。
方法:通过比较,提出一套更加规范的磁共振成像方法,并对其进行动态增强。(3)有助于临床应用。
方法与肝纤维化、定量检查及其他磁共振成像检查相结合,以更好地表征血流灌注区和血流动力学。
HFpEF患者的纤维化随着时间的推移而发生变化。这项研究将使他们对这种非侵入性的磁共振成像有更多的深入了解--
基于血流灌注和纤维化的生物标记物,以及它们如何与其他生物标记物互补,并提供更多的洞察力。
分成不同的HFpEF亚型。
与公共卫生问题的最大相关性是,HFpEF是导致残疾和死亡的主要原因之一,而且没有。
目前尚不清楚有效的治疗方法。在这项研究的开发过程中,我们使用了准确的测试方法和可重复的测试方法。
灌注技术及其与肝纤维化和定量检测的良好结合将有助于加快对其临床应用的评估。
治疗。该项目还将为更好地管理患者提供新的治疗工具和治疗知识。
有了HFpEF,我们提出的新方法将得到进一步扩展,以更好地了解一系列心脏手术。
疾病。
英文摘要
Heart failure with preserved ejection fraction (HFpEF) is currently being studied intensely as several
large trials of drug therapies have failed to benefit patients. Better characterization of these patients is
important, and there are open questions regarding microvascular disease and remodeling in the
HFpEF population. New MRI methods could be ideal to better characterize and understand HFpEF
and its response to treatments. This project seeks to develop, evaluate and apply new MRI methods
for high-end perfusion imaging. These methods will estimate endo/epi ratios across the cardiac cycle
in free-breathing studies, which will be used along with other new MRI measurements and blood
biomarkers to provide new information about microvascular disease. This is of particular value for
assessing HFpEF.
The aims and methods of this project are to (1) develop and compare new 2D radial simultaneous
multi-slice (SMS) and 3D stack-of-stars (SoS) acquisitions and reconstruction methods for
quantitative perfusion measurements. (2) To validate the new 2D radial SMS and 3D SoS free-
breathing methods in an animal model of HFpEF, and in humans to further characterize the new
methods by comparison to a more standard MRI method and to dynamic PET. (3) To use the
methods along with fibrosis quantitation and other MRI measures to characterize perfusion and
fibrosis changes over time in patients with HFpEF. This will give more insight into non-invasive MRI-
based perfusion and fibrosis biomarkers and how they complement other biomarkers and give insight
into different subtypes of HFpEF.
The relevance to public health is that HFpEF is a leading cause of disability and death and no
effective treatment is known. The development and use of accurate and repeatable measurements of
perfusion and their combination with fibrosis quantitation will lead to accelerated evaluation of clinical
therapies. The project will also provide new tools and knowledge for better management of patients
with HFpEF. The proposed approach will be extended to better understand a range of cardiac
diseases.
期刊论文(0)
专著(0)
科研奖励(0)
会议论文
Improved Imaging of Fibrosis in Atrial Fibrillation
-
批准号:10576920
-
项目类别:
-
资助金额:$74.78万
-
财政年份:2022
-
负责人:EDWARD VR DIBELLA
-
依托单位:
Improved Imaging of Fibrosis in Atrial Fibrillation
-
批准号:10392232
-
项目类别:
-
资助金额:$74.78万
-
财政年份:2022
-
负责人:EDWARD VR DIBELLA
-
依托单位:
Rapid high order diffusion imaging for stroke
-
批准号:8563352
-
项目类别:
-
资助金额:$33.91万
-
财政年份:2013
-
负责人:EDWARD VR DIBELLA
-
依托单位:
Rapid high order diffusion imaging for stroke
-
批准号:8705063
-
项目类别:
-
资助金额:$35.83万
-
财政年份:2013
-
负责人:EDWARD VR DIBELLA
-
依托单位:
Rapid high order diffusion imaging for stroke
-
批准号:8892278
-
项目类别:
-
资助金额:$34.89万
-
财政年份:2013
-
负责人:EDWARD VR DIBELLA
-
依托单位:
Quantitative cardiac MRI perfusion for longitudinal studies
-
批准号:8705575
-
项目类别:
-
资助金额:$49.5万
-
财政年份:2012
-
负责人:EDWARD VR DIBELLA
-
依托单位:
Quantitative cardiac MRI perfusion for longitudinal studies
-
批准号:8373623
-
项目类别:
-
资助金额:$49.8万
-
财政年份:2012
-
负责人:EDWARD VR DIBELLA
-
依托单位:
Quantitative cardiac MRI perfusion for longitudinal studies
-
批准号:8525433
-
项目类别:
-
资助金额:$53.3万
-
财政年份:2012
-
负责人:EDWARD VR DIBELLA
-
依托单位:
Compressed Sensing with Motion Models for MRI of Late Gadolinium Enhancement
-
批准号:8319301
-
项目类别:
-
资助金额:$22.43万
-
财政年份:2011
-
负责人:EDWARD VR DIBELLA
-
依托单位:
Compressed Sensing with Motion Models for MRI of Late Gadolinium Enhancement
-
批准号:8179726
-
项目类别:
-
资助金额:$18.69万
-
财政年份:2011
-
负责人:EDWARD VR DIBELLA
-
依托单位:
Model-Based Reconstruction for Dynamic MRI
-
批准号:7290741
-
项目类别:
-
资助金额:$37.67万
-
财政年份:2007
-
负责人:EDWARD VR DIBELLA
-
依托单位:
Model-Based Reconstruction for Dynamic MRI
-
批准号:7477221
-
项目类别:
-
资助金额:$37.76万
-
财政年份:2007
-
负责人:EDWARD VR DIBELLA
-
依托单位:
Model-Based Reconstruction for Dynamic MRI
-
批准号:7622601
-
项目类别:
-
资助金额:$41.2万
-
财政年份:2007
-
负责人:EDWARD VR DIBELLA
-
依托单位:
Model-Based Reconstruction for Dynamic MRI
-
批准号:7843630
-
项目类别:
-
资助金额:$41.07万
-
财政年份:2007
-
负责人:EDWARD VR DIBELLA
-
依托单位:
Dynamic MRI for Myrocardial Perfusion and Viability
-
批准号:7008199
-
项目类别:
-
资助金额:$21.9万
-
财政年份:2003
-
负责人:EDWARD VR DIBELLA
-
依托单位:
Dynamic MRI for Myocardial Perfusion and Viability
-
批准号:7871340
-
项目类别:
-
资助金额:$32.85万
-
财政年份:2003
-
负责人:EDWARD VR DIBELLA
-
依托单位:
Dynamic MRI for Myrocardial Perfusion and Viability
-
批准号:6732631
-
项目类别:
-
资助金额:$22.43万
-
财政年份:2003
-
负责人:EDWARD VR DIBELLA
-
依托单位:
Dynamic MRI for Myocardial Perfusion and Viability
-
批准号:7644578
-
项目类别:
-
资助金额:$33.19万
-
财政年份:2003
-
负责人:EDWARD VR DIBELLA
-
依托单位:
Dynamic MRI for Myocardial Perfusion and Viability
-
批准号:6610284
-
项目类别:
-
资助金额:$27.44万
-
财政年份:2003
-
负责人:EDWARD VR DIBELLA
-
依托单位:
The DyRoSH Scanner: SPECT with 2 Second Time Resolution
-
批准号:6802016
-
项目类别:
-
资助金额:$22.43万
-
财政年份:2003
-
负责人:EDWARD VR DIBELLA
-
依托单位:
海外基金