| 일 | 월 | 화 | 수 | 목 | 금 | 토 |
|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | ||
| 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| 13 | 14 | 15 | 16 | 17 | 18 | 19 |
| 20 | 21 | 22 | 23 | 24 | 25 | 26 |
| 27 | 28 | 29 | 30 |
- ECG gating
- chemical shift artifact
- T1강조영상
- 방사선사나라
- receive bandwidth
- T2 이완
- MR angiography
- 동위상 탈위상
- T2WI
- slice gap
- 사전포화펄스
- TR TE
- T1WI
- FSE
- wrap around artifact
- tof
- saturation pulse
- T2강조영상
- 자기공명혈관조영술
- fractional echo
- MRI image parameters
- K-space
- MRI gantry
- fast spin echo
- saturation band
- radiographer nara
- MRA
- no phase wrap
- MRI 영상변수
- aliasing artifact
- Today
- Total
목록ECG gating (2)
방사선사나라 Radiographer Nara
[MRI] (영/한) Phase mismapping artifact / 위상의 미스맵핑 인공물
(영어/영문/English) Phase mismapping artifact? (Motion & Flow artifact) It is created by an anatomical structure that moves along a gradient field while a pulse sequence is applied. This artifact appears in the form of a ghost, made by respiratory motion in chest wall, abdominal wall and made by heart motion, blood vessels with pulse, swallowing action, and eye movement during data acquisition. Prev..
[MRI] (영/한) Image parameter(6) - FC , Gating / 영상변수(6) - 유동보정, 게이팅
(영어/영문/English) 11. FC (Flow Compensation) Sending a 180º RF pulse to the tissue to be imaged and obtaining an echo signal is the same as the conventional method, and a rephasing gradient magnetic field is added to re-magnetize the phase-shifted proton. The fluid in the spinal cavity vibrates and moves at an amplitude of several centimeters per second, the fastest in the cervical region and slow..