Digital subtraction angiography systems: assessing performance with phantoms

Conference · Sun Sep 01 04:00:00 EDT 1985 · Radiology; (United States)

OSTI ID:5212039

Goodsitt, M M; Abbate, L; Hesselink, J R

A solid, acrylic phantom was developed to assess the iodine perceptibility of three digital subtraction angiography (DSA) systems, including one using a recursive filter technique. Three phantoms, designed to mimic flow of iodinated boluses through blood vessels, were used. Each contained four triangular boluses of different widths and of a specific iodine concentration. Motion, required to test recursively filtered DSA systems, was simulated by placing the phantoms on a motorized cart. The phantoms were also used to test flow curve generation in applicable systems. Intersystem differences in perceptibility were attributed to differences in system noise, system resolution, and dynamic range. Flow curves produced with the phantoms were similar to those obtained in patient studies.

• Research Organization: Massachusetts General Hospital, Boston
• OSTI ID: 5212039
• Report Number(s): CONF-851152-
• Conference Information: Journal Name: Radiology; (United States) Journal Volume: 156:3
• Country of Publication: United States
• Language: English

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BIOMEDICAL RADIOGRAPHY
BLOOD FLOW
BLOOD VESSELS
BODY
CARDIOVASCULAR SYSTEM
DESIGN
DIAGNOSTIC TECHNIQUES
ELECTROMAGNETIC RADIATION
HALOGEN COMPOUNDS
IMAGE PROCESSING
IODINE COMPOUNDS
IONIZING RADIATIONS
MEDICINE
MOCKUP
NUCLEAR MEDICINE
ORGANS
PERFORMANCE TESTING
PHANTOMS
PROCESSING
RADIATIONS
RADIOLOGY
STRUCTURAL MODELS
TESTING
X RADIATION