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X‐ray videodensitometric methods for blood flow and velocity measurement: A critical review of literature
Author(s) -
Shpilfoygel Simon D.,
Close Robert A.,
Valentino Daniel J.,
Duckwiler Gary R.
Publication year - 2000
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.1288669
Subject(s) - blood flow , digital subtraction angiography , roentgen , angiography , radiology , medicine , subtraction , nuclear medicine , medical physics , computer science , mathematics , arithmetic
Blood flow rate and velocity are important parameters for the study of vascular systems, and for the diagnosis, monitoring and evaluation of treatment of cerebro‐ and cardiovascular disease. For rapid imaging of cerebral and cardiac blood vessels, digital x‐ray subtraction angiography has numerous advantages over other modalities. Roentgen‐videodensitometric techniques measure blood flow and velocity from changes of contrast material density in x‐ray angiograms. Many roentgen‐videodensitometric flow measurement methods can also be applied to CT, MR and rotational angiography images. Hence, roentgen‐videodensitometric blood flow and velocity measurement from digital x‐ray angiograms represents an important research topic. This work contains a critical review and bibliography surveying current and old developments in the field. We present an extensive survey of English‐language publications on the subject and a classification of published algorithms. We also present descriptions and critical reviews of these algorithms. The algorithms are reviewed with requirements imposed by neuro‐ and cardiovascular clinical environments in mind.