초청 세미나가 아래와 같이 8월 17일(수)에 진행되오니 관심 있는 분들의 많은 참석 부탁 드립니다.
- 아 래 -
연사: Wanyong Shin, PhD (Imaging Institute, Cleveland Clinic, Cleveland, OH, U.S.A)
제목: The non-neuronal signal in functional MRI data and its correction
일시: 2022년 08월 17일 (수) 오전 11시
장소: 고려대학교 과학도서관 611호 & 줌 (Meeting ID: 899 5142 0563, Passcode: EYZC4YC1Pc)
초록:
Neuronal activation can be measured using magnetic resonance
imaging (MRI)-based blood oxygenation level dependent (BOLD) contrast.
However, BOLD contrast is known to be impacted by non-neuronal signal
sources. The physiologic respiratory and cardiac signals have been
identified as a primary non-neuronal source of variance. The head motion
during fMRI data acquisition is known to be not only non-neuronal signal
but also the bias source to produce the signal fluctuation to deflect the
statistical result.
The seminar has two parts. 1) The physiologic signals reflected on fMRI
data is discussed, and the method to remove the physiologic components
without the external physio-measures is presented. 2) The head motion is
injected on ex-vivo brain phantom in volume-and slice-wisely using a
home built sequence, and the slicewise-motion correction method is
presented to be compared to a conventional volume motion correction
method.
주최: 고려대학교 뇌공학과 뇌신호처리 연구실 (http://bspl.korea.ac.kr)
후원: 한국연구재단 중견과제/미래뇌융합과제 (NRF-2017R1E1A1A01077288, NRF-2021M3E5D2A01022515)
문의: Tel. 02-3290-3667, bsplku605@gmail.com