Evaluation of a cinevideodensitometric method for measuring vessel dimensions from digitized angiograms.
A cinevideodensitometric method for measuring the dimensions of small vessels by computer analysis of digitized cineangiograms was developed and validated in radiographic phantom models. With this method, which is based on full-width-at-half-maximum analysis of videodensitometric profile curves, the diameters of contrast-filled plexiglass cylinders ranging from 1.78 mm to 4.14 mm in diameter were measured to within 2% mean error. The theoretical basis for this method of cinevideodensitometric analysis is provided.
Department of Radiology, College of Physicians and Surgeons, Columbia University, New York, New York.
E L
EL
Nickoloff
J
J
Han
P D
PD
Esser
A B
AB
Nichols
D000792:Angiography / Q000379:methods*; D002933:Cineradiography / Q000379:methods*; D003720:Densitometry / Q000379:methods*; D006801:Humans; D008961:Models, Structural; D011856:Radiographic Image Enhancement