Computed radiography angiography using storage phosphor imaging plates: eight year's experience.
We reviewed the indications, modalities, and quality of angiographic examinations performed in our department from 1987 to 1994 and compared the image characteristics and technical convenience of three modalities: conventional film-screen angiography, fluorographic digital subtraction angiography (F-DSA), and computed radiography angiography using biplane rapid changers of storage phosphor imaging plates (IP-CRA). IP-CRA has practically eclipsed conventional film-screen angiography in our radiology department. Sixty-percent of the total 700 examinations carried out in 1994 were performed using a combination of IP-CRA and fluorographic digital subtraction angiography (F-DSA). The remainder were performed with F-DSA alone. The post-processing functions of IP-CRA like subtraction and change of contrast or density were useful especially in such regions as pulmonary, bronchial, or external carotid arterial territories, where high natural contrast made image processing difficult with both F-DSA and film-screen angiography. The spatial resolution of IP-CRA was superior to that of F-DSA and comparable to the film-screen method. It was concluded that angiography using imaging plates was a useful part of the digital radiography system.
Kudo
S
S
Department of Radiology, Saga Medical School Hospital, Japan.
Kato
A
A
Uchino
A
A
Matsuo
Y
Y
Mizuguchi
M
M
Fukahori
T
T
Matsumoto
K
K
Shimizu
T
T
D015901:Angiography, Digital Subtraction / Q000295:instrumentation / Q000379:methods*; D006801:Humans; D009369:Neoplasms / Q000000981:diagnostic imaging; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed / Q000295:instrumentation / Q000379:methods*; D014652:Vascular Diseases / Q000000981:diagnostic imaging; D014963:X-Ray Intensifying Screens