Self-Navigated Phase Contrast MR
Sussman M, Li J, Macgowan C, van Amerom J, Biswas L, Stainsby J, Merchant N
University of Toronto
Measurement of flow in pulmonary blood vessels requires some form of correction for respiratory motion. Self-navigated phase contrast MR is a modification of the conventional retrospectively cardiac-gated phase contrast MR sequence. This technique uses the image data itself to determine anatomic position. Data that is poorly correlated with an initial template is discarded and reacquired in real time. In vitro flow phantom tests show that the technique is an improvement over conventional multi-averaged phase contrast in terms of image quality and flow measurement.