서브메뉴
검색
Novel Magnetic Resonance Fingerprinting (MRF) Methods and Applications
Novel Magnetic Resonance Fingerprinting (MRF) Methods and Applications
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211151140
- ISBN
- 9798382767291
- DDC
- 610
- 저자명
- Qian, Enlin.
- 서명/저자
- Novel Magnetic Resonance Fingerprinting (MRF) Methods and Applications
- 발행사항
- [Sl] : Columbia University, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 147 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 85-11, Section: B.
- 주기사항
- Advisor: Vaughan, John T.;Geethanath, Sairam.
- 학위논문주기
- Thesis (Ph.D.)--Columbia University, 2024.
- 초록/해제
- 요약Magnetic resonance imaging (MRI) provides excellent soft tissue contrast and enables structural, functional, and metabolic imaging of the human body. One primary clinical application of MRI is the neuroimaging of tumors, which demands both multi-parametric qualitative and quantitative information from MR scans. Although the role of the quantitative MRI (qMRI) is well accepted, it suffers from long acquisition times leading to patient discomfort, especially in geriatric and pediatric patients. Quantitative imaging is also critical to estimating temperature during MR scans of patients with implants and leads. The radiofrequency stimulus pulses of an MRI exam can couple to conductive implants, resulting in eddy current propagation and consequential heating. The heating can lead to third-degree burn lesions along the surfaces of titanium joints, deep brain stimulation (DBS), and pacemaker leads. Such challenges raise safety concerns in MRI, requiring fast and accurate temperature estimations to ensure patients' safety.This thesis aims to tackle the abovementioned challenges in MRI, specifically focusing on developing novel quantitative imaging approaches using magnetic resonance fingerprinting (MRF) methods and applications. MRF is a framework that allows measuring multiple tissue properties in a single acquisition. In the first chapter, we extend the current implementation of MRF and introduce tailored MRF (TMRF), an imaging method offering qualitative and quantitative information simultaneously, with promising results in differentiating healthy and pathological tissues. This method increases scanner efficiency and decreases acquisition time for neuroimaging while simultaneously providing qualitative and quantitative imaging measures. We demonstrate these advances in in vitro phantoms healthy volunteers- and pediatric patient- populations. In the second chapter, we address the issue of MRI safety for patients with conductive implants like deep brain stimulation (DBS) leads by using MRF-based thermometry (MRFT) to accurately predict and monitor temperature near these implants during MRI scans, enhancing safety and efficacy for image-guided procedures and imaging patients with such implants. Successful approaches will be incorporated into an imaging protocol to increase safety and effectiveness for image-guided lead placement and imaging patients with implanted leads. To validate MRFT in vivo in patients, we conducted a patient study using MRFT to evaluate the accuracy of MRFT in vivo near DBS lead. In the third section, we implement an open-source MRF package (OMEGA) for a multi-site, multi-field strength MRF repeatability study, demonstrating its accuracy and repeatability of MRF across various conditions.
- 일반주제명
- Biomedical engineering
- 일반주제명
- Neurosciences
- 일반주제명
- Medical imaging
- 기타저자
- Columbia University Biomedical Engineering
- 기본자료저록
- Dissertations Abstracts International. 85-11B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
008250123s2024 us c eng d■001000017160947
■00520250211151140
■006m o d
■007cr#unu||||||||
■020 ▼a9798382767291
■035 ▼a(MiAaPQ)AAI31149292
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a610
■1001 ▼aQian, Enlin.
■24510▼aNovel Magnetic Resonance Fingerprinting (MRF) Methods and Applications
■260 ▼a[Sl]▼bColumbia University▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a147 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 85-11, Section: B.
■500 ▼aAdvisor: Vaughan, John T.;Geethanath, Sairam.
■5021 ▼aThesis (Ph.D.)--Columbia University, 2024.
■520 ▼aMagnetic resonance imaging (MRI) provides excellent soft tissue contrast and enables structural, functional, and metabolic imaging of the human body. One primary clinical application of MRI is the neuroimaging of tumors, which demands both multi-parametric qualitative and quantitative information from MR scans. Although the role of the quantitative MRI (qMRI) is well accepted, it suffers from long acquisition times leading to patient discomfort, especially in geriatric and pediatric patients. Quantitative imaging is also critical to estimating temperature during MR scans of patients with implants and leads. The radiofrequency stimulus pulses of an MRI exam can couple to conductive implants, resulting in eddy current propagation and consequential heating. The heating can lead to third-degree burn lesions along the surfaces of titanium joints, deep brain stimulation (DBS), and pacemaker leads. Such challenges raise safety concerns in MRI, requiring fast and accurate temperature estimations to ensure patients' safety.This thesis aims to tackle the abovementioned challenges in MRI, specifically focusing on developing novel quantitative imaging approaches using magnetic resonance fingerprinting (MRF) methods and applications. MRF is a framework that allows measuring multiple tissue properties in a single acquisition. In the first chapter, we extend the current implementation of MRF and introduce tailored MRF (TMRF), an imaging method offering qualitative and quantitative information simultaneously, with promising results in differentiating healthy and pathological tissues. This method increases scanner efficiency and decreases acquisition time for neuroimaging while simultaneously providing qualitative and quantitative imaging measures. We demonstrate these advances in in vitro phantoms healthy volunteers- and pediatric patient- populations. In the second chapter, we address the issue of MRI safety for patients with conductive implants like deep brain stimulation (DBS) leads by using MRF-based thermometry (MRFT) to accurately predict and monitor temperature near these implants during MRI scans, enhancing safety and efficacy for image-guided procedures and imaging patients with such implants. Successful approaches will be incorporated into an imaging protocol to increase safety and effectiveness for image-guided lead placement and imaging patients with implanted leads. To validate MRFT in vivo in patients, we conducted a patient study using MRFT to evaluate the accuracy of MRFT in vivo near DBS lead. In the third section, we implement an open-source MRF package (OMEGA) for a multi-site, multi-field strength MRF repeatability study, demonstrating its accuracy and repeatability of MRF across various conditions.
■590 ▼aSchool code: 0054.
■650 4▼aBiomedical engineering
■650 4▼aNeurosciences
■650 4▼aMedical imaging
■653 ▼aMagnetic resonance imaging
■653 ▼aDeep brain stimulation
■653 ▼aMagnetic resonance fingerprinting
■690 ▼a0541
■690 ▼a0574
■690 ▼a0317
■71020▼aColumbia University▼bBiomedical Engineering.
■7730 ▼tDissertations Abstracts International▼g85-11B.
■790 ▼a0054
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17160947▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
