Abstract
Current MRA techniques do not always accurately depict vascular anatomy, particularly in areas of disturbed flow. Various reasons cause a wrong delineation of vessel boundaries. A phase contrast (PC) based post-processing operation, the phase gradient (PG), is introduced to detect phase fluctuations indicating flow. By means of numerical, phantom and in vivo experiments, it is shown that PG angiograms give better impressions of (stenotic) vessels and of their diameters for both laminar and disturbed flow.
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References
Evans AJ, Richardson DB, Tien R, MacFall JR, Hedlund LW, Heinz ER, Boyko O, Sostman HD. Poststenotic signal loss in MR angiography: effects of echo time, flow compensation and fractional echo. American Journal of Neuroradiology 1993; 14:721–729.
Oshinski JN, Du DN, Pettigrew RI. Turbulent fluctuation velocity: The most significant determinant of signal loss in stenotic vessels. Magnetic Resonance in Medicine 1995; 33:193–199.
Urchuk SN, Plewes DB. Mechanisms of flow-induced signal loss in MR angiography. Journal of Magnetic Resonance Imaging 1992; 2:453–462.
Anderson CM, Saloner D, Tsuruda JS, Shapeero LG, Lee RE. Artifacts in maximum-intensity-projection display of MR angiograms. American Journal of Radiology 1990; 154:623–629.
Bowen BC, Quencer RM, Margosian P, Pattany PM. MR angiography of occlusive disease of the arteries in the head and neck: current concepts. American Journal of Röntgen Ray Society 1994; 162:9–18.
Patel MR, Klufas RA, Kim D, Edelman RR, Kent KC. MR Angiography of the carotid bifurcation: artifacts and limitations. American Journal of Röntgen Ray Society 1994; 162:1431–1437.
Hoogeveen RM, Bakker CJG, Viergever MA. Improved visualisation of vessel lumina using phase gradient images. volume 1, page 578. Proc. SMR/ESMRMB, 3rd and 12th annual meeting, 1995.
Lee AT, Pike GB, Pelc NJ. Three-point phase-contrast velocity measurements with increased velocity-to-noise ratio. Magnetic Resonance in Medicine 1995; 33:122–126.
Polzin JA, Alley MT, Korosec FR, Grist TM, Wang Y, Mistretta CA. A complex-difference phase-contrast technique for measurements of volume flow rates. Journal of Magnetic Resonance Imaging 1995; 5:129–137.
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© 1996 Springer-Verlag Berlin Heidelberg
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Hoogeveen, R., Bakker, C., Viergever, M. (1996). Accurate vessel depiction with phase gradient algorithm in MR angiography. In: Höhne, K.H., Kikinis, R. (eds) Visualization in Biomedical Computing. VBC 1996. Lecture Notes in Computer Science, vol 1131. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0046937
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DOI: https://doi.org/10.1007/BFb0046937
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