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Multi-Dimensional Neuroimage Analysis
Multi-Dimensional Neuroimage Analysis
Detailed Information
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211152745
- ISBN
- 9798342107495
- DDC
- 616.8905
- 저자명
- Ouyang, Jiahong.
- 서명/저자
- Multi-Dimensional Neuroimage Analysis
- 발행사항
- [Sl] : Stanford University, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 195 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-04, Section: B.
- 주기사항
- Advisor: Pohl, Kilian;Zaharchuk, Greg.
- 학위논문주기
- Thesis (Ph.D.)--Stanford University, 2024.
- 초록/해제
- 요약Multi-modal and longitudinal neuroimages (a.k.a. multi-dimensional neuroimages) are critical for the understanding, diagnosis, and monitoring of neurological disorders. The complex disease patterns captured by these images are in many cases difficult to identify by visual inspection from human experts or existing technology. Deep learning techniques have recently shown immense potential in neuroimage analysis. However, they often result in uninterpretable findings, which is of particular concern where understanding a model's behavior fosters trust and assurance among clinicians. Besides, to make their findings generalizable, they usually require large labeled neuroimaging datasets that are unavailable or acquired at a high cost. Thus, in this dissertation, we aim to address these two challenges of deep learning approaches: interpretability and accuracy under limited data. Specifically, we propose to enhance interpretability by visualization and estimation of patterns characteristic for a disease. To accurately identify disease-specific patterns, we propose to integrate prior knowledge in the model design and to develop novel deep learning strategies centered around self- or weakly supervision.Adapting these key ideas, we first develop deep learning methods for multi-modal neuroimages with the task of synthesizing 18F-fluorodeoxyglucose (FDG) Positron Emission Tomography (PET) from multi-contrast Magnetic Resonance Imaging (MRI). We introduce brain symmetry into the model design to achieve accurate characterization of abnormality. Then, we develop a self-supervised method to enable accurate synthesis even when an input modality is missing. We are able to synthesize diagnostic-quality FDG PET images from MRIs for the brain neoplasm cohort, potentially leading to safer and more equitable diagnostic neuroimaging. Secondly, we design a series of interpretable deep learning methods ranging from supervised to self- or weakly supervised to analyze brain aging and Alzheimer's Disease (AD) from longitudinal MRIs. These models explicitly account for the irreversibility of these processes enabling us to accurately estimate brain age and disease progression, including AD diagnoses and identifying subjects that will convert to AD. Lastly, we introduce a work that further extends to the interpretable analysis of multi-dimensional neuroimages, that jointly learns from longitudinal MRI and amyloid PET. By regularizing the temporal ordering of showing disease abnormality across modalities, it further results in the accurate cross-modal prediction task of estimating amyloid status from MRI. These efforts in AD analysis enable early-stage diagnosis of AD, which has the potential of facilitating timely intervention and enhancing AD clinical trials.
- 일반주제명
- Neuroimaging
- 일반주제명
- Alzheimer's disease
- 일반주제명
- Deep learning
- 일반주제명
- Neurological disorders
- 일반주제명
- Aging
- 일반주제명
- Medical research
- 일반주제명
- Brain
- 일반주제명
- Medical imaging
- 일반주제명
- Visualization
- 일반주제명
- Medicine
- 일반주제명
- Neurosciences
- 기타저자
- Stanford University.
- 기본자료저록
- Dissertations Abstracts International. 86-04B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■007cr#unu||||||||
■020 ▼a9798342107495
■035 ▼a(MiAaPQ)AAI31520273
■035 ▼a(MiAaPQ)Stanfordgg874sq1652
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a616.8905
■1001 ▼aOuyang, Jiahong.
■24510▼aMulti-Dimensional Neuroimage Analysis
■260 ▼a[Sl]▼bStanford University▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a195 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-04, Section: B.
■500 ▼aAdvisor: Pohl, Kilian;Zaharchuk, Greg.
■5021 ▼aThesis (Ph.D.)--Stanford University, 2024.
■520 ▼aMulti-modal and longitudinal neuroimages (a.k.a. multi-dimensional neuroimages) are critical for the understanding, diagnosis, and monitoring of neurological disorders. The complex disease patterns captured by these images are in many cases difficult to identify by visual inspection from human experts or existing technology. Deep learning techniques have recently shown immense potential in neuroimage analysis. However, they often result in uninterpretable findings, which is of particular concern where understanding a model's behavior fosters trust and assurance among clinicians. Besides, to make their findings generalizable, they usually require large labeled neuroimaging datasets that are unavailable or acquired at a high cost. Thus, in this dissertation, we aim to address these two challenges of deep learning approaches: interpretability and accuracy under limited data. Specifically, we propose to enhance interpretability by visualization and estimation of patterns characteristic for a disease. To accurately identify disease-specific patterns, we propose to integrate prior knowledge in the model design and to develop novel deep learning strategies centered around self- or weakly supervision.Adapting these key ideas, we first develop deep learning methods for multi-modal neuroimages with the task of synthesizing 18F-fluorodeoxyglucose (FDG) Positron Emission Tomography (PET) from multi-contrast Magnetic Resonance Imaging (MRI). We introduce brain symmetry into the model design to achieve accurate characterization of abnormality. Then, we develop a self-supervised method to enable accurate synthesis even when an input modality is missing. We are able to synthesize diagnostic-quality FDG PET images from MRIs for the brain neoplasm cohort, potentially leading to safer and more equitable diagnostic neuroimaging. Secondly, we design a series of interpretable deep learning methods ranging from supervised to self- or weakly supervised to analyze brain aging and Alzheimer's Disease (AD) from longitudinal MRIs. These models explicitly account for the irreversibility of these processes enabling us to accurately estimate brain age and disease progression, including AD diagnoses and identifying subjects that will convert to AD. Lastly, we introduce a work that further extends to the interpretable analysis of multi-dimensional neuroimages, that jointly learns from longitudinal MRI and amyloid PET. By regularizing the temporal ordering of showing disease abnormality across modalities, it further results in the accurate cross-modal prediction task of estimating amyloid status from MRI. These efforts in AD analysis enable early-stage diagnosis of AD, which has the potential of facilitating timely intervention and enhancing AD clinical trials.
■590 ▼aSchool code: 0212.
■650 4▼aNeuroimaging
■650 4▼aAlzheimer's disease
■650 4▼aDeep learning
■650 4▼aNeurological disorders
■650 4▼aAging
■650 4▼aMedical research
■650 4▼aBrain
■650 4▼aMedical imaging
■650 4▼aVisualization
■650 4▼aMedicine
■650 4▼aNeurosciences
■690 ▼a0493
■690 ▼a0574
■690 ▼a0800
■690 ▼a0564
■690 ▼a0317
■71020▼aStanford University.
■7730 ▼tDissertations Abstracts International▼g86-04B.
■790 ▼a0212
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17163722▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
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