Parametric Imaging Of Digital Subtraction Angiography Studies For Renal Transplant Evaluation
- 4 November 1981
- conference paper
- Published by SPIE-Intl Soc Optical Eng
- Vol. 314, 229-235
- https://doi.org/10.1117/12.933051
Abstract
A noninvasive method for diagnosing acute tubular necrosis and rejection would be an important tool for the management of renal transplant patients. From a sequence of digital subtraction angiographic images acquired after an intravenous injection of radiographic contrast material, the parametric images of the maximum contrast, the time when the maximum contrast is reached, and two times the time at which one half of the maximum contrast is reached are computed. The parametric images of the time when the maximum is reached clearly distinguish normal from abnormal renal function. However, it is the parametric image of two times the time when one half of the maximum is reached which provides some assistance in differentiating acute tubular necrosis from rejection.Keywords
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