High Precision Quantitative Angiography

Statistical considerations on the precision in the determination of blood vessel dimensions from digitized cine angiographic images are described. The resolution requirements related to "point measurements" and segmental diameter curve evaluations are discussed. The error associated with i...

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Veröffentlicht in:	IEEE transactions on medical imaging 1987-09, Vol.6 (3), p.258-265
Hauptverfasser:	Sandor, Tamas, D'Adamo, Arthur, Hanlon, William B., Spears, J. Richard
Format:	Artikel
Sprache:	eng
Schlagworte:	Angiography Atherosclerosis Automation Biological and medical sciences Biomedical imaging Blood vessels Image analysis Image segmentation Imaging phantoms Investigative techniques, diagnostic techniques (general aspects) Medical sciences Miscellaneous. Technology Radiodiagnosis. Nmr imagery. Nmr spectrometry Visualization
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Zusammenfassung:	Statistical considerations on the precision in the determination of blood vessel dimensions from digitized cine angiographic images are described. The resolution requirements related to "point measurements" and segmental diameter curve evaluations are discussed. The error associated with inaccurate determination of the vessel's centerline is analyzed. The concepts have been implemented on a high-speed image analyzing system, which measures blood vessel diameters with advanced automation. The performance of the system was evaluated with blood vessel phantoms, ranging in diameter from 0.88 to 6.26 mm. For these phantoms the minimum measurable change in vessel dimension over 20-pixel (-1.1 mm) long segments ranged from 3.4 to 0.2 percent, respectively.
ISSN:	0278-0062 1558-254X
DOI:	10.1109/TMI.1987.4307835