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http://dx.doi.org/10.5573/ieie.2016.53.3.151

Optimization of Flip Angle at Head & Neck MR Angiography using Gadoteridol  

Jeong, Hyunkeun (Medical Imaging of Engineering, Korea University)
Kim, Mingi (Electronics&Information Engineering, Korea University)
Song, Jaejun (Otolaryngology, Korea University Guro Hospital)
Nam, Kichang (Medical Engineering, Dongguk University College of Medicine)
Choi, Hyunsung (Biology science, University of Texas at Dallas)
Jeong, Hyundo (Department of Psychology, Templeton University)
Kim, Hochul (Department of Radiological Science, Eulji University)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.53, no.3, 2016 , pp. 151-159 More about this Journal
Abstract
In this research, we tried to suggest moderate FA(Flip Angle) for CE(Contrast Enhnaced)-Head&Neck MR Angiography with Gadoteridol. For this study, we did test MR phantom and clinical study according to FA change. After that, quantitative analysis was progressed. The results of MR phantom study were as follow: RSP(Reaction Starting Point)was recorded within 300~400 mmol. MPSI(Max Peak Signal Intensity) was 2,086, 3,705, 5,109, 6,194, 7.096, 7,192 [a.u]. MPP(Max Peak Point) was shown at 30, 50, 50, 40, 50, 40 mmol. IRMPSI(Increase Rate of MPSI) was 77.6%, 37.9%, 21.2%, 14.6%, 1.4% as increasing of FA. The results of clinical study were as follow SICB(Signal Intensity of Carotid artery Bifurcation) was recorded respectively 392.5, 4165.2, 4270, 3502.2, 3263.7, 3119.6 [a.u]. ORA(Occurence Rate of Artifact) was increased as 0, 0, 20, 40, 50, 70%. According to this research, we are not only able to assure that increase of FA can be effect on H1 spin's SI(Signal Intensity) which was combined with gadolinium agent, but also be effect on artifact rate in blood vessel. In clinical field, we expect that CE-Head&Neck MR Angiography can be performed in a practical way with this research.
Keywords
Gadoteridol; Flip Angle; Head & Neck MRA; Carotid Artery; Gadolinium;
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Times Cited By KSCI : 3  (Citation Analysis)
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