Quantitative digital subtraction arteriography with a calibration catheter

Quantitative intraarterial digital subtraction arteriography (DSA) was performed using a calibration catheter with three distal metallic ring markers. The two outer markers were 50 mm apart, and the third marker was in the middle. Measurements of 54 vessel diameters of the abdominal aorta, renal, lu...

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Bibliographic Details
Published in:Cardiovascular and interventional radiology 1989-09, Vol.12 (5), p.281-285
Main Authors: BARTH, K. H, KERMERS, P. W, LINDISCH, D, WANG, P, MERTENS, M. A
Format: Article
Language:English
Subjects:
Angiography, Digital Subtraction - instrumentation
Aorta, Abdominal - anatomy & histology
Biological and medical sciences
Calibration
Cardiovascular system
Catheterization - instrumentation
Humans
Iliac Artery - anatomy & histology
Investigative techniques, diagnostic techniques (general aspects)
Medical sciences
Radiodiagnosis. Nmr imagery. Nmr spectrometry
Renal Artery - anatomy & histology
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Summary:Quantitative intraarterial digital subtraction arteriography (DSA) was performed using a calibration catheter with three distal metallic ring markers. The two outer markers were 50 mm apart, and the third marker was in the middle. Measurements of 54 vessel diameters of the abdominal aorta, renal, lumbar, and iliac arteries were performed in a comparison study with direct film arteriograms in 10 aortofemoral runoff studies. Diameter measurements were made by both the observer on hard copy DSA images and by a computer using modified semiquantitative software. Against measurements on film, which were used as the standard, deviation in measurement on digital images varied from 8 to 13% for arterial diameters less than 5 mm and from 2 to 6% for diameters greater than or equal to 5 mm. Projectional artifacts caused 3% or less error. Knowing these variations in measurement is important in order to determine error tolerances for clinical applications. The calibration catheter serves as a convenient internal marker for DSA.
ISSN:0174-1551
1432-086X
DOI:10.1007/BF02575417