Digital angiography: matched filtration versus mask-mode subtraction

Journal Article · Tue Jan 01 04:00:00 EST 1985 · Radiology; (United States)

DOI:https://doi.org/10.1148/radiology.154.1.3880608· OSTI ID:5615747

Liu, P; Kruger, R A; Nelson, J A; Miller, F J; Osborn, A G; Wojtowycz, M

Matched filtration was compared to mask-mode subtraction in patients undergoing routine intravenous digital subtraction angiography. Images were analyzed for noise and edge sharpness, and the two techniques were compared subjectively by three radiologists. The quantitative results indicated that matched filtration increased the signal-to-noise ratio by an average of 2.23 but did not significantly increase vessel blurring. Subjectively, the observers favored matched filtration over mask-mode subtraction for overall image quality in 26 out of 30 cases in terms of both sharpness and freedom from motion artifacts.

• Research Organization: Univ. of Utah Medical Center, Salt Lake City
• OSTI ID: 5615747
• Journal Information: Radiology; (United States), Journal Name: Radiology; (United States) Vol. 154:1; ISSN RADLA
• 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 VESSELS
BODY
CARDIOVASCULAR SYSTEM
DIAGNOSTIC TECHNIQUES
DIGITAL SYSTEMS
IMAGE PROCESSING
IMAGES
MEDICINE
NUCLEAR MEDICINE
ORGANS
PROCESSING
RADIOLOGY
SIGNAL-TO-NOISE RATIO