가야대학교 분성도서관

상단 글로벌/추가 메뉴

회원 로그인

주메뉴

: • 전체검색; • 단행본; • 정기간행물; • 학위논문; • 비도서; • 특정번호 검색; • 기사색인; • 학습연구지원; • 지정도서

: • 전자자원통합검색; • 해외 WEB DB; • E-Book; • E-Learning; • 국내 WEB DB; • 인터넷검색

: • 대출현황조회/연장; • 예약현황조회/취소; • 희망도서; • 내서재; • 나의서평; • 나의태그; • 나의위젯; • RSS; • SDI; • 개인정보관리

: • 공지사항; • FAQ; • Q&A 일반·학술; • 신착/인기 도서; • 학위논문온라인제출; • 외부인 이용안내; • 설문조사

: • 도서관 소개; • 연혁; • 현황; • 이용안내; • 찾아오시는 길

자료검색

Home
상세정보

상세정보

검색결과 돌아가기

부가기능

MARC보기

Advancing Quantitative Perfusion Abdominal Imaging

상세 프로파일

상세정보
자료유형	E-Book
개인저자	Martin, Thomas Boyd.
단체저자명	University of California, Los Angeles. Biomedical Physics 0119.
서명/저자사항	Advancing Quantitative Perfusion Abdominal Imaging.
발행사항	[S.l.] : University of California, Los Angeles., 2018
발행사항	Ann Arbor : ProQuest Dissertations & Theses, 2018
형태사항	111 p.
소장본 주기	School code: 0031.
ISBN	9780438021662
일반주기	Source: Dissertation Abstracts International, Volume: 79-10(E), Section: B. Includes supplementary digital materials. Adviser: Kyunghyun Sung.
요약	Purpose.
요약	To develop and investigate a self-gated MR imaging technique to improve motion compensation robustness for dynamic contrast enhanced MRI, to develop and evaluate a low-dose CT perfusion reconstruction technique, and to develop motion tracking fo
요약	Methods.
요약	A 3D dual-echo golden angle stack-of-radial gradient echo sequence was developed such that a fat-only self-gated signal (SGSF) could be extracted using a two-point Dixon method. The SGSF was validated by i) numerical simulations of SGSF in the p
요약	A previously developed MRI reconstruction technique called k-space weighted image contrast (KWIC) was used to reduce the number of x-ray projections per gantry rotation, therefore reducing the radiation dose for CT perfusion (CTP) imaging. KWIC
요약	The 3D golden angle stack-of-radial gradient echo sequence and KWIC reconstruction were then used to scan sixty-one pregnant women. Forty-eight subjects were scanned between 14-18 weeks and 19-24 weeks gestational age (GA). Thirteen additional p
요약	Results.
요약	Numerical simulation showed that the fat extraction for SGS has less than 15% error at Deltaf = +/-0-50 Hz. There is strong correlation between SGS and SGSF (mean correlation = 0.91), and video motion curve and SGSF (mean correlation coefficient
요약	For the CT perfusion the numerical simulations showed that KWIC were unaffected by the undersampling/dose reduction (down to 12.5% dose) with KWIC reconstruction compared to the fully sampled FBP reconstruction. The normalized root-mean-square-e
요약	In uterine motion we observed the mean duration of the contractions was significantly longer by 26.5 seconds during GA 14-18 weeks compared to GA 19-24 weeks (p=0.034) and significantly longer for male fetuses versus female fetuses (p=0.044
요약	Conclusions.
요약	Respiratory motion correction in the liver can be achieved using fat-only SGS with minimal error in the fat-water separation. The proposed technique has potential implications for more robust motion correction for liver dynamic contrast enhanced
요약	The low dose CTP study demonstrates that KWIC preserves perfusion metrics for CTP with substantially reduced dose. Clinical implementation will require further investigation into methods of rapid switching of a CT X-ray source.
요약	There is a significant difference in the duration of uterine contractions between the two gestational ages examined and the fetal sex. No association in maternal motion during early gestation was seen between GA, fetus sex and placental position
일반주제명	Medical imaging.
언어	영어
기본자료 저록	Dissertation Abstracts International79-10B(E). Dissertation Abstract International
대출바로가기	http://www.riss.kr/pdu/ddodLink.do?id=T14998953