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article · Radiology · 2004

User-defined Vascular Input Function Curves: Influence on Mean Perfusion Parameter Values and Signal-to-Noise Ratio

Susan Kealey, Vilert A. Loving, David M. DeLong, James D. Eastwood

Cited by 56Abstract and details only

Abstract

The authors reviewed 40 computed tomographic (CT) perfusion studies to determine the effect of arterial and venous input function properties on perfusion parameter values and tissue signal-to-noise ratio (SNR). A 10-subject subset was analyzed to evaluate the effect of varying venous region of interest (ROI) locations. Venous peak enhancement correlated significantly with mean tissue cerebral blood flow (CBF) and cerebral blood volume (CBV); venous and arterial peak enhancement correlated significantly with SNR of perfusion maps. Different ROI locations within the same vein resulted in significantly different CBV and CBF values. Perfusion map parameters are related to peak enhancement within user-selected ROIs. Optimal ROI selection should limit variability and increase quality of CT perfusion images.

Cite this paper

APA 7

Kealey, S., Loving, V. A., DeLong, D. M., & Eastwood, J. D. (2004). User-defined Vascular Input Function Curves: Influence on Mean Perfusion Parameter Values and Signal-to-Noise Ratio. Radiology, 231(2), 587–593. https://doi.org/10.1148/radiol.2312030489

MLA 9

Kealey, Susan, et al. “User-defined Vascular Input Function Curves: Influence on Mean Perfusion Parameter Values and Signal-to-Noise Ratio.” Radiology, vol. 231, no. 2, 2004, pp. 587–93, https://doi.org/10.1148/radiol.2312030489.

Chicago

Kealey, Susan, Vilert A. Loving, David M. DeLong, and James D. Eastwood. 2004. “User-defined Vascular Input Function Curves: Influence on Mean Perfusion Parameter Values and Signal-to-Noise Ratio.” Radiology 231 (2): 587–93. https://doi.org/10.1148/radiol.2312030489.

Harvard

Kealey, S. et al. (2004) ‘User-defined Vascular Input Function Curves: Influence on Mean Perfusion Parameter Values and Signal-to-Noise Ratio’, Radiology, 231(2), pp. 587–593. Available at: https://doi.org/10.1148/radiol.2312030489.

BibTeX
@article{kealey2004user,
  title = {{User-defined Vascular Input Function Curves: Influence on Mean Perfusion Parameter Values and Signal-to-Noise Ratio}},
  author = {Kealey, Susan and Loving, Vilert A. and DeLong, David M. and Eastwood, James D.},
  journal = {Radiology},
  volume = {231},
  number = {2},
  pages = {587--593},
  year = {2004},
  doi = {10.1148/radiol.2312030489}
}

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