Comprehensive CT Guided Coronary Artery Bypass Graft Surgery
Comprehensive CT Guided Coronary Artery Bypass Graft Surgery
批准号:
10333312
负责人:
Koen Nieman
金额:
$72.5万
依托单位:
依托单位国家:
美国
项目类别:
财政年份:
2019
资助国家:
美国
项目状态:
已结题
起止时间:
2019-02-15 至 2024-01-31
关键词:
AlgorithmsAnatomyAngiographyAtherosclerosisBehaviorBlindedBlood VesselsBlood flowCardiacCaringCatheterizationCharacteristicsChest PainCicatrixClinicalCoronaryCoronary ArteriosclerosisCoronary Artery BypassCoronary OcclusionsCoronary VesselsCoronary heart diseaseDataDecision MakingDevelopmentDiagnosticDiffuseDiseaseDistalEffectivenessEvaluationFunctional ImagingFutureGoalsHealthImageImaging DeviceImaging TechniquesIndividualInfarctionIntuitionIschemiaKnowledgeLesionLifeLiquid substanceMachine LearningManualsMeasuresMissionModelingMorbidity - disease rateMyocardialMyocardial IschemiaMyocardial perfusionNatureOperative Surgical ProceduresOrganismOutcomePatientsPerformancePerfusionPhysiologyProceduresPublic HealthReportingReproducibilityResearchResidual stateResolutionSafetySeveritiesStenosisStressSurgical complicationSymptomsTechniquesTestingThromboplastinTimeTissuesUnited States National Institutes of HealthX-Ray Computed Tomographybaseblood flow measurementclinical applicationclinical decision-makingclinical implementationclinical practicecohortcostdisabilityfunctional outcomeshemodynamicsimage guidedimprovedimproved outcomeinnovationmortalitynovel therapeuticsperfusion imagingpredictive modelingprospectiverestorationsimulationstandard caresurgery outcometoolvirtual
中文摘要
项目总结:
--
冠状动脉旁路移植术(CABG)作为一个新的群体,它可以改善大多数冠心病(CAD)患者的生活质量。
但约20%的患者在术后一年内仍有症状。在临床实践中,CABG的决策在很大程度上是错误的。
在动脉狭窄和严重程度的推动下,有创血管造影术决定了患者的病情,尽管已知的患者功能障碍的相关性很高。
CAD参数。如果没有临床可用的高分辨率技术,这一实际的技术僵局将继续存在。
定量和功能成像,可以更好地了解与解剖学相关的临床治疗结果。
(血管造影术)包括功能障碍(缺血、瘢痕和组织)等因素。我们的长期目标是进一步改善患者的预后。
CABG通过个性化的、影像引导的医疗保健进行治疗。但这项建议的总体目标是无法确定的。
心肌血流恢复的决定因素(缺血减少),并将为心脏开发一种集成的磁共振成像工具。
个性化的、特定于病变的冠状动脉旁路移植术的决策、评估和模拟的计算数据流是基于模型的。
患者的心脏解剖结构和功能有助于预测患者的血流动力学和预后。这一点得到了使用有创手术的研究的支持。
在FFR指导下的CABG,提出这一研究计划的主要理由是,将解剖学研究(血管造影术)与其他技术相结合。
而功能性血管信息(缺血、疤痕和组织)将无法识别他们将不会从中受益的单个冠状动脉和血管。
通过流程模拟实现的外科手术的血运重建、治疗和个体化优化将不会最大限度地提高临床疗效。
冠状动脉旁路移植术对冠心病患者的益处。在有希望的初步临床数据的支持下,有三个具体的治疗目标。
建议:(1)前瞻性地确定心血管造影、功能障碍和临床基线对预后的决定因素。
冠状动脉搭桥术后,;将其定义为心肌缺血和心绞痛症状的改善率;CABG(2)。
开发并验证一种全面的医学影像诊断策略,以及一种可在临床上应用的医学工具,该工具将高度集成
对每个血管/病变的分辨率、血管造影术和定量的功能检测信息(缺血、生存能力)。
决策中的血运重建;;(3)开发并验证新的多参数计算流程和模拟,
随着功能成像技术数据的加入,它允许对个体血液动力学检查结果进行预测。
并最终实现基于虚拟血流动力学测试结果的手术方案优化。这种方法是非常创新的。
因为新的冠状动脉成像技术将进一步促进业界对冠状动脉搭桥术的生理学、临床和新技术的理解。
将继续开发临床适用的辅助工具,为全面的临床辅助决策和优化的辅助外科手术提供支持。
规划。由于获得的知识和开发的工具不适用于其他重要的血管安全环境,因此可以使用。
也将成为一项新的医疗技术创新的工具性工具。这项新提出的研究计划意义重大,因为……
识别冠状动脉旁路移植术的结果、决定因素、评估和提供新的评估解决方案,以便进行全面的评估和决策。
在程序性指导下,我们已经找到了通过完善和功能上的指导来进一步提高其有效性的潜在途径。
血运重建)提高和提高冠状动脉旁路移植术的效率(通过避免无用的心脏移植)。对于一大群冠状动脉旁路移植术患者来说,这些都是值得的。
创新将进一步改善患者重视的冠脉搭桥术(CABG)的临床受益率(并发症、症状),临床应用也将减少。
通过提高医疗保健的效率来降低成本。
英文摘要
Project Summary
Coronary bypass graft surgery (CABG) improves the lives of patients with coronary disease (CAD) as a group,
but 20% of patients remain symptomatic one year after surgery. In clinical practice CABG decisions are largely
driven by stenosis severity determined from invasive angiography despite the known relevance of functional
CAD parameters. This practical impasse will continue to exist without clinically available, high-resolution,
quantitative functional imaging, and a better understanding of the clinical outcomes in relation to anatomical
(angiography) and functional (ischemia, scar tissue) factors. The long-term goal is to improve outcome of
CABG through personalized imaging-guided care. The overall objective of this proposal is to identify
determinants of myocardial flow restoration (ischemia reduction), and develop integrated imaging tools for
individualized, lesion-specific CABG decision-making, and computational flow simulations based on the
patient’s anatomy and function to predict the hemodynamic outcome. Supported by studies using invasive
FFR-guided CABG, the rationale for the proposed research is that integration of anatomical (angiography)
and functional information (ischemia, scar tissue) will identify individual coronary vessels that will benefit from
revascularization, and individual optimization of surgical procedures by flow simulations will maximize clinical
benefit of CABG for patients with CAD. Supported by promising preliminary data, three specific aims are
proposed: 1) Prospectively identify angiographic, functional and clinical baseline determinants of outcome
after CABG, defined as improvement of myocardial perfusion (ischemia reduction) and angina symptoms;; 2)
Develop and validate a comprehensive imaging strategy and clinically applicable tool that integrate high-
resolution angiographic and quantitative functional information (ischemia, viability) for per-vessel/lesion
revascularization decisions;; 3) Develop and validate new multi-parametric computational flow simulations,
with incorporation of functional imaging data, which allows for prediction of individual hemodynamic outcome
and ultimately surgical optimization based on virtual hemodynamic results. This approach is innovative
because new imaging techniques will advance the field’s understanding of CABG physiology, and new
clinically applicable tools will be developed for comprehensive clinical decision-making and optimized surgical
planning. The acquired knowledge and developed tools are applicable to other vascular contexts, and may
also be instrumental for new therapeutic innovations. The proposed research is significant because
identification of CABG outcome determinants, and new solutions for comprehensive decision-making and
procedural guidance, have the potential to improve the effectiveness (by complete functional
revascularization) and efficiency of CABG (by avoiding futile grafts). For a large group of patients, these
innovations will improve the patient-valued benefit of CABG (complications, symptoms), and also decrease
cost by improved efficiency of care.
期刊论文(0)
专著(0)
科研奖励(0)
会议论文
International Consortium for Multimodality Phenotyping in Adults with Non-compaction
-
批准号:10452602
-
项目类别:
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资助金额:$72.35万
-
财政年份:2020
-
负责人:Koen Nieman
-
依托单位:
International Consortium for Multimodality Phenotyping in Adults with Non-compaction
-
批准号:10218265
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项目类别:
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资助金额:$73.33万
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财政年份:2020
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负责人:Koen Nieman
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依托单位:
International Consortium for Multimodality Phenotyping in Adults with Non-compaction
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批准号:9977674
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项目类别:
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资助金额:$80.58万
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财政年份:2020
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负责人:Koen Nieman
-
依托单位:
International Consortium for Multimodality Phenotyping in Adults with Non-compaction
-
批准号:10674511
-
项目类别:
-
资助金额:$71.26万
-
财政年份:2020
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负责人:Koen Nieman
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依托单位:
Comprehensive CT Guided Coronary Artery Bypass Graft Surgery
-
批准号:10599842
-
项目类别:
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资助金额:$56.73万
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财政年份:2019
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负责人:Koen Nieman
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依托单位:
Comprehensive CT Guided Coronary Artery Bypass Graft Surgery
-
批准号:10093121
-
项目类别:
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资助金额:$71.86万
-
财政年份:2019
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负责人:Koen Nieman
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依托单位:
Multi-Disciplinary Training Program in Cardiovascular Imaging at Stanford
-
批准号:10441519
-
项目类别:
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资助金额:$21.54万
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财政年份:2008
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负责人:Koen Nieman
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依托单位:
Multi-Disciplinary Training Program in Cardiovascular Imaging at Stanford
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批准号:10686299
-
项目类别:
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资助金额:$32.79万
-
财政年份:2008
-
负责人:Koen Nieman
-
依托单位:
Multi-Disciplinary Training Program in Cardiovascular Imaging at Stanford
-
批准号:10641349
-
项目类别:
-
资助金额:$16.21万
-
财政年份:2008
-
负责人:Koen Nieman
-
依托单位:
Multi-Disciplinary Training Program in Cardiovascular Imaging at Stanford
-
批准号:10244883
-
项目类别:
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资助金额:$30.55万
-
财政年份:2008
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负责人:Koen Nieman
-
依托单位:
海外基金