스캔 인자에 따른 4D 위상 대조 자기공명영상을 이용한 스캔 시간 분석: 팬텀 연구
Scan Time Analysis Using 4D Phase-Contrast MRI According to Scan Parameter: A Phantom Study
2
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
The purpose of this study was to evaluate the effect according to the NEX, VENC, targeted cardiac phases on the velocity measurement of 4D phase-contrast MRI. Materials and Methods: The abdominal aortic phantom was made to experiment. The working fluid was mixed with water and glycerin to mimic the density and viscosity of human blood. The inlet velocity was Reynolds number 2000. The experimental conditions were NEX 1 and 4, VENC 102 cm/s and 200 cm/s, and 10 and 15 targeted cardiac phases, respectively. The average flow rate, average velocity, maximum velocity, and cross-section area were measured. Results: As a result of the case-by-case comparison, the error rate was less than 5%. There was no significant difference (p > 0.05). Conclusion: It is expected that this result will be useful for acquiring blood flow information in clinical practice.
Abstract
The purpose of this study was to evaluate the effect according to the NEX, VENC, targeted cardiac phases on the velocity measurement of 4D phase-contrast MRI. Materials and Methods: The abdominal aortic phantom was made to experiment. The working fluid was mixed with water and glycerin to mimic the density and viscosity of human blood. The inlet velocity was Reynolds number 2000. The experimental conditions were NEX 1 and 4, VENC 102 cm/s and 200 cm/s, and 10 and 15 targeted cardiac phases, respectively. The average flow rate, average velocity, maximum velocity, and cross-section area were measured. Results: As a result of the case-by-case comparison, the error rate was less than 5%. There was no significant difference (p > 0.05). Conclusion: It is expected that this result will be useful for acquiring blood flow information in clinical practice.
참고문헌 (19)
- 하호진, "4D Flow MRI를 활용한 혈류역학적 인자의 측정법", 대한영상의학회지, 80(2), pp.239~258 (2019), 대한영상의학회[DOI]
- Bock J, "Optimized preprocessing of timeresolved 2D and 3D phase contrast MRI data", Conf Proc 15th Annual Meeting of ISMRM, pp.3138~ (2007)
- Stalder AF, "Quantitative 2D and 3D Phase contrast MRI : Optimized Analysis of Blood Flow and Vessel Wall Parameters", Mag Reson Med, 60(5), pp.1218~1231 (2008)
- Pereira VM, "Wall shear stress distribution of small aneurysms prone to rupture : a case-control study", Stroke, 45(1), pp.261~264 (2014)
- Morbiducci U, "In vivo quantification of helical blood flow in human aorta by time-resolved three-dimensional cine phase contrast magnetic resonance imaging", Ann Biomed Eng, 37(3), pp.516~531 (2009)
- 최관우, "악성종양의 감별진단을 위한 근골격의 확산강조영상 검사 시 최적의 여기횟수", 한국콘텐츠학회 논문지, 18(8), pp.338~344 (2018), 한국콘텐츠학회[DOI]
- 김문선, "위상대조도 MRI에서 숙임각에 따른 상행대동맥의 혈류 측정", 한국자기학회지, 26(4), pp.142~148 (2016), 한국자기학회
- Hashemi RH, "MRI: the basics", pp.310~326 (2012), Lippincott Williams & Wilkins
- Lotz J, "Cardiovascular flow measurement with phase-contrast MR imaging : basic facts and implementation", Radiographics, 22(3), pp.651~671 (2002)
- 김성호, "위상대조도 자기공명영상을 이용한 심장 혈류평가에 있어서 호흡정지기법과 비 호흡정지 기법의 비교평가", 방사선기술과학, 39(2), pp.149~156 (2016), 대한방사선과학회[DOI]
- Chung TG, "High Signal Intensity on T1-Weighted MR Image Related to Vacuum Cleft in the Intervertebral Disk : Clinical and Phantom Study", Korean J Radiol Soc, 43(6), pp.651~656 (2000)
- Aaron Fenster, "Ultrasound Imaging and Therapy", pp.67~ (2015), Taylor & Francis
- Shcherbina A, "Accuracy in wrist-worn, sensor-based measurements of heart rate and energy expenditure in a diverse cohort", J pers Med, 7(2), pp.3~ (2017)
- Jelena B, "4D Phase contrast MRI at 3T : Effect of Standard and Blood-Pool Contrast Agents on SNR, PC-MRA and Blood Flow Visualization", Magn Reson Med, 63(2), pp.330~338 (2010)
- Susanne S, "Four-dimensional MRI flow Examinations in cerebral and Extracerebal vessels-ready for clinical routine?", Curr Opin Neurol, 29(4), pp.419~428 (2016)
- Michael M, "Time-Resolved 3D MR Velocity Mapping at 3T : Improved Navigator-Gated Assessment of Vascular Anatomy and Blood Flow", J Magn Reson imaging, 25(4), pp.824~831 (2007)
- Susanne S, "k-t GRAPPA Accelerated Four-Dimensional Flow MRI in the Aorta : Effect on Scan time, image Quality, and Quantification of Flow and Wall Shear Stress", Magn Reson Med, 72(2), pp.522~533 (2014)
- Algin O, "Phase-contrast MRI and 3D-CISS versus contrast-enhanced MR cisternography for the detection of spontaneous third ventriculostomy", Journal of Neuroradiology, 38(2), pp.98~104 (2011)
- Peng SL, "Optimized analysis of blood flow and wall shear stress in the common carotid artery of rat model by phase-contrast MRI", Scientific reports, 7(1), pp.5253~ (2017)