Novel MR Image Processing as an Objective Diagnostic Test for Chiari Malformation
Novel MR Image Processing as an Objective Diagnostic Test for Chiari Malformation
批准号:
9813099
负责人:
PHILIP A. ALLEN
金额:
$46.88万
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:
2019-09-30 至 2023-06-30
关键词:
AdultAlzheimer&aposs DiseaseAnatomyAreaAttentionBiomechanicsBiomedical ResearchBirthBrainBrain InjuriesBrain StemCardiacCerebellar tonsilCerebellumCerebrospinal FluidChiari Malformation Type 1ChildClinicalCongressesCrowdingDementiaDiagnosisDiagnosticDiagnostic radiologic examinationDiagnostic testsDiffusion Magnetic Resonance ImagingDiseaseEarly DiagnosisEngineeringFinancial costFunctional disorderGoalsHigh School StudentHumanImage AnalysisIndividualLeadLiquid substanceMagnetic ResonanceMagnetic Resonance ImagingMeasurementMeasuresMethodsMorphologyMotionMultiple SclerosisNational Institute of Neurological Disorders and StrokeNerveOperative Surgical ProceduresOutcomePatientsPositioning AttributePosterior FossaPrevalencePrognostic MarkerQuality of lifeRadiology SpecialtyReportingResearchResistanceScheduleSeveritiesSeverity of illnessStatistical Data InterpretationSurgeonSurgical DecompressionSymptomsTechniquesTimeTonsilTranslatingTraumatic Brain InjuryUnited States National Institutes of HealthWorkbasebrain morphologybrain tissuecerebrospinal fluid flowchronic traumatic encephalopathyclinical diagnosticscognitive functionexperienceforamen magnumgraduate studenthealthy volunteerimage processingimprovedin vivomalformationnatural flownervous system disordernoveloutcome forecastpatient populationpressuresocietal costssymposiumsymptomatologyundergraduate student
中文摘要
摘要:Chiari氏畸形I型(CM)是一种非常严重的神经系统功能障碍,其特征是大脑小脑功能障碍。
扁桃体位置位于枕大孔下方(扁桃体异位)。这是发生在枕大孔附近的另一种“拥挤”现象。
枕大孔损伤会对大脑小脑和脑干造成压迫,并扰乱大脑的正常血流。
脑脊液。为了使问题进一步复杂化,有3%的儿童和1%的成年人被发现患有扁桃体。
异位症在美国东部的一份放射学报告中显示,但仅有30万人(0.08%)被确诊为患有异位症。因此,
有扁桃体异位的放射学证据的个人比其他人多10倍以上。
这实际上是一种慢性心肌炎的诊断方法。因此,许多外科医生和患者对目前的情况非常不满意。
放射医学测量是一项重要的诊断标准。每年约有20,000名CM患者接受评估。
对于手术来说,在美国,一半以上的人接受了后颅窝的手术和减压手术,这是他们的主要目标。
在小脑和扁桃体周围创造了更多的空间。虽然大多数CCM患者已经报告过。
手术后生活质量的改善并不是在不同的疾病症状之间也是一致的。
这一形势的重要性甚至引起了国会的高度重视,国会在2009年6月指示NINDS采取行动,以鼓励人们。
采取积极的措施,朝着先进的医学工程技术和医学成像技术分析方向发展,为人类提供一种更加客观的诊断和分析手段。
仅靠静态和解剖学测量是不足以诊断慢性心肌炎的。
在新的心脏周期中,脑部解剖学改变了脑脊液的运动状态,脑组织的动态状态发生了变化,这可能是可行的。
共同导致CM的症状。因此,我们需要了解生物力学特征与疾病之间的关系。
严重程度和措施将导致我们为慢性心肌炎建立一个更加客观的诊断和检测方法。但是,第一个拟议的研究方法的主要目标是。
在减压和手术前获得一种新颖的基于MR的动态和生物力学测试手段,并确定他们的能力。
与疾病和严重程度的措施的关系。我们假设这些生物力学的措施是正确的。
与疾病和严重程度的措施相关。此外,这些生物力学措施可能不能反映疾病的严重性。
潜在的病理生理学与心血管疾病相关,是一种比临床标准更好的预后疾病指标。
这些方法目前正被广泛应用于临床。我们的团队已经开发了几种全新的磁共振图像处理技术。
可以提供体内和特定于受试者的生物力学措施的技术:1)提供对脑脊液运动的抵抗力;2)
脑组织的应变,以及脑组织的形态计量学。在一组不同的CCM患者中,我们可能还没有检查过这种疾病。
严重程度的测量包括DTI、认知功能、运动和症状学。初步的测试结果已经证明。
这些生物力学指标和疾病严重程度指标在中医受试者中可能会有明显不同。
健康的健康控制。然而,这些措施需要在相同的患者和人群基础上更好地获得,以便更好地控制。
确定他们之间的精确关系。我们将在50名成年人中获得一项生物力学测试和一项疾病严重程度测试。
CM患者在手术前接受治疗。这项研究将使他们对生物力学的重要性有一个更好的理解。
《中医药临床病理生理学》中提出的措施表明,这可能有助于为中医药提供更好的临床诊断和检测手段。
英文摘要
Summary: Chiari malformation Type I (CM) is a serious neurological disorder characterized by the cerebellar
tonsillar position located below the foramen magnum (tonsillar ectopia). The “crowding” that occurs near the
foramen magnum causes compression on the cerebellum and brainstem and disrupts the natural flow of
cerebrospinal fluid. To further complicate matters, 3% of children and 1% of adults are shown to have tonsillar
ectopia on a radiology report, but just 300,000 individuals (0.08%) are diagnosed with CM in the US. Thus,
there are greater than 10 times more individuals with radiographic evidence of tonsillar ectopia than individuals
that actually have a diagnosis of CM. As such, surgeons and patients are dissatisfied with the current
radiological measurement as a diagnostic criterion. Approximately 20,000 CM patients are evaluated each year
for surgery in the US from which half receive surgical decompression of the posterior fossa with the goal of
creating more space around the cerebellar tonsils. While the majority of CM patients have reported
improvement in quality of life after surgery, this improvement is not consistent across different symptoms. The
significance of the situation even got the attention of Congress, which in 2009 directed NINDS to, “encourage
aggressive measures toward advanced engineering and imaging analysis to an objective diagnostic test for
CM.” Static anatomical measurements alone are NOT adequate to diagnose CM. The combination of altered
brain anatomy with altered CSF motion and dynamic brain tissue strain during the cardiac cycle likely work
together to cause CM symptoms. Thus, understanding the relationship between biomechanical and disease
severity measures would lead to an objective diagnostic test for CM. The goal of the proposed study is to
obtain novel MR-based dynamic biomechanical measures before decompression surgery and determine their
relationship with disease severity measures. We hypothesize that these biomechanical measures are
correlated with disease severity measures. Furthermore, these biomechanical measures may reflect the
underlying pathophysiology associated with CM, and serve as a better prognostic indicator than the standard
methods that are currently being used clinically. Our group has developed several novel MR image-processing
techniques that provide in-vivo subject-specific biomechanical measures of 1) resistance to CSF motion, 2)
brain tissue strain, and 3) brain morphometrics. In a different group of CM patients, we have examined disease
severity measures including DTI, cognitive function, and symptomology. Preliminary results have demonstrated
these biomechanical and disease severity measures to be significantly different in CM subjects compared to
healthy controls. However, these measures need to be acquired on the same patient population in order to
determine their precise relationship. We will obtain biomechanical and disease severity measures in 50 adult
CM patients before surgery. This study will provide an understanding of the importance of biomechanical
measures in the pathophysiology of CM that may lead to better clinical diagnostic testing for CM.
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SMALL INSTRUMENTATION GRANT
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批准号:3522708
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项目类别:
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资助金额:$0.5万
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财政年份:1993
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负责人:PHILIP A. ALLEN
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依托单位:
ADULT AGE DIFFERENCES IN COGNITIVE NOISE
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批准号:3453468
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项目类别:
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资助金额:$8.08万
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负责人:PHILIP A. ALLEN
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依托单位:
AGE DIFFERENCES IN EPISODIC AND SEMANTIC MEMORY
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批准号:2001335
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资助金额:$17.97万
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负责人:PHILIP A. ALLEN
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AGE DIFFERENCES IN EPISODIC AND SEMANTIC MEMORY
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负责人:PHILIP A. ALLEN
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AGE DIFFERENCES IN EPISODIC AND SEMANTIC MEMORY
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项目类别:
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资助金额:$10.0万
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负责人:PHILIP A. ALLEN
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依托单位:
AGE DIFFERENCES IN EPISODIC AND SEMANTIC MEMORY
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批准号:2882058
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负责人:PHILIP A. ALLEN
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负责人:PHILIP A. ALLEN
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ADULT AGE DIFFERENCES IN COGNITIVE NOISE
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负责人:PHILIP A. ALLEN
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依托单位:
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批准号:2050706
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负责人:PHILIP A. ALLEN
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负责人:PHILIP A. ALLEN
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