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http://dx.doi.org/10.7742/jksr.2020.14.7.965

Quantitative Analysis of Fluid Velocity and Signal Loss of the TOF-MRA in a 3.0T MR System: Using the Flow Rate Control Phantom  

Back, Sang-Hoon (Department of Radiological Science, Eulji University)
Jeong, Jin-Heon (Department of Radiological Science, Eulji University)
Lee, Ye-Eun (Department of Radiological Science, Eulji University)
Gwak, Min-Young (Department of Radiological Science, Eulji University)
Yoon, Jun (Department of Radiological Science, Eulji University)
Jung, Dabin (Department of Radiological Science, Graduate school Eulji University)
Oh, Hyun-Sik (Department of Radiological Science, Graduate school Eulji University)
Heo, Yeong-Cheol (Department of Radiological Science, Eulji University)
Publication Information
Journal of the Korean Society of Radiology / v.14, no.7, 2020 , pp. 965-973 More about this Journal
Abstract
The purpose of this study was to quantitatively correlate the change of flow velocity and signal voiding in TOF-MRA. We made our phantom to control the flow velocity, and changed the flow velocity in 16 steps from 8.0 to 127.3 mc/s. The TOF-MRA test was performed using a 3.0T MRI system and the signal intensity was measured by classifying the signal voiding length and image into the In flow, Mid flow, and Out flow. The length of signal voiding was the longest when the flow velocity was 127.3 cm/s and the signal intensity decreased with increasing flow velocity(p<0.05). In flow(-.547) and Mid flow(-.643) were negatively correlated with flow velocitys(p<0.05). In conclusion, it was confirmed that the increase in flow velocity was a major factor causing signal voiding in TOF-MRA. In the future, this study will provide basic data when studying sequences and parameters to reduce signal voiding in models with a high flow velocity.
Keywords
TOF-MRA; Flow rate control phantom; Flow phantom; Signal void; perfusion phantom;
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