Blood flow determination using recursive processing: a digital radiographic method
Temporal filtration of fluoroscopic video sequences is being used as an alternative to pulsed digital subtraction angiography. Using the same image processing architecture and a slight modification in processing logic a parametric image can be synthesized from such a temporally filtered image sequen...
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Published in | Radiology Vol. 149; no. 1; p. 293 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
United States
01.10.1983
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Subjects | |
Online Access | Get more information |
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Summary: | Temporal filtration of fluoroscopic video sequences is being used as an alternative to pulsed digital subtraction angiography. Using the same image processing architecture and a slight modification in processing logic a parametric image can be synthesized from such a temporally filtered image sequence in virtual real time, i.e., an image sequence that spans T seconds takes exactly T seconds to process. Off-line computer processing is not required. Initial phantom studies imply that the time to maximum opacification (tmax) can be used to determine absolute and relative blood flow with a high confidence level (r greater than .989). Phantom and animal examples are presented. |
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ISSN: | 0033-8419 |
DOI: | 10.1148/radiology.149.1.6351164 |