Digital subtraction angiography with an Isocon camera system: clinical applications

Journal Article · Sun Jan 01 00:00:00 EST 1984 · AJR, Am. J. Roentgenol.; (United States)

DOI:https://doi.org/10.2214/ajr.142.1.143· OSTI ID:5242195

Barbaric, Z L; Gomes, A S; Deckard, M E; Nelson, R S; Moler, C L

A new imaging system for digital subtraction angiography (DSA) was evaluated in 30 clinical studies. The image receptor is a 25 X 25 cm, 12 par gadolinium oxysulfate rare-earth screen whose light output is focused to a low-light-level Isocon camera. The video signal is digitized and processed by an image-array processor containing 31 512 X 512 memories 8 bits deep. In most patients, intraarterial DSA studies were done in conjunction with conventional arteriography. In these arterial studies, images adequate to make a specific diagnosis were obtained using half the radiation dose and half the amount of contrast material needed for conventional angiography. In eight intravenous studies performed either to identify renal artery stenosis or for evaluation of congenital heart anomalies, the images were diagnostic but objectionably noisy.

• Research Organization: Univ. of California, Los Angeles, CA (United States)
• OSTI ID: 5242195
• Journal Information: AJR, Am. J. Roentgenol.; (United States), Vol. 142:1
• Country of Publication: United States
• Language: English

Related Subjects

62 RADIOLOGY AND NUCLEAR MEDICINE
BIOMEDICAL RADIOGRAPHY
IMAGE PROCESSING
CAMERAS
PERFORMANCE
SIGNAL-TO-NOISE RATIO
ARTERIES
CONGENITAL MALFORMATIONS
DIGITAL FILTERS
GADOLINIUM SULFATES
HEART
KIDNEYS
PATIENTS
BLOOD VESSELS
BODY
CARDIOVASCULAR SYSTEM
DIAGNOSTIC TECHNIQUES
GADOLINIUM COMPOUNDS
MALFORMATIONS
MEDICINE
NUCLEAR MEDICINE
ORGANS
OXYGEN COMPOUNDS
PATHOLOGICAL CHANGES
PROCESSING
RADIOLOGY
RARE EARTH COMPOUNDS
SULFATES
SULFUR COMPOUNDS
550602* - Medicine- External Radiation in Diagnostics- (1980-)