Digital subtraction cerebral angiography by intraarterial injection: comparison with conventional angiography

Journal Article · Tue Feb 01 04:00:00 EST 1983 · AJR, Am. J. Roentgenol.; (United States)

DOI:https://doi.org/10.2214/ajr.140.2.347· OSTI ID:5578838

Brant-Zawadzki, M ^[1]; Gould, R; Norman, D; Newton, T H; Lane, B

---

1. San Francisco General Hospital, CA

For 4 months, a prototype digital subtraction system was used to obtain images of the cerebral vasculature after intraarterial contrast injections. In 12 instances, the intraarterial injections were recorded with both a digital subtraction unit and conventional direct magnification film-screen system. The digital subtraction and conventional film subtraction images were compared and graded for quality and information content by three skilled observers. In addition, quantitative measurements of contrast-detail performance and spatial resolution were obtained on both the digital system and the screen-film imaging chain. In a clinical setting, both the digital subtraction and conventional film-screen systems provided similar quality images and angiographic information. Contrast-detail curves demonstrated that digital subtraction angiography outperformed conventional film technique for low-contrast objects. Digital subtraction angiography also reduced the time required to obtain the angiogram, markedly reduced film cost, and lowered the contrast agent burden.

• OSTI ID: 5578838
• Journal Information: AJR, Am. J. Roentgenol.; (United States), Journal Name: AJR, Am. J. Roentgenol.; (United States) Vol. 140:2; ISSN AAJRD
• Country of Publication: United States
• Language: English

Related Subjects

550602* -- Medicine-- External Radiation in Diagnostics-- (1980-)
62 RADIOLOGY AND NUCLEAR MEDICINE
ARTERIES
BIOMEDICAL RADIOGRAPHY
BLOOD FLOW
BLOOD VESSELS
BODY
BRAIN
CARDIOVASCULAR DISEASES
CARDIOVASCULAR SYSTEM
CENTRAL NERVOUS SYSTEM
CEREBRUM
CONTRAST MEDIA
DIAGNOSIS
DIAGNOSTIC TECHNIQUES
DISEASES
MEDICINE
NERVOUS SYSTEM
NUCLEAR MEDICINE
ORGANS
RADIOLOGY