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PubMed · 6342037

Dynamic tomographic digital subtraction angiography using temporal filtration.

R A Kruger·J A Nelson·D Ghosh-Roy·F J Miller·R E Anderson·P Y Liu
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Abstract

A variation of temporal recursive filtering for intravenous and intra-arterial digital subtraction angiography (DSA) is described. It results in a dynamic tomographic DSA display that may improve intravenous DSA performance by removing the confusion introduced by vessel overlap and reducing the severity of motion artifacts. A conventional circular tomographic apparatus was modified by the addition of a 23-cm image intensifier-television chain and made to run continuously at one revolution each 1.5 seconds. The video output was processed by the recursive filter in a two-step process resulting in a dynamic tomographic display of arterial opacification. Theory and results of initial animal studies are presented.

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AngiographyAnimalsDogsDrug CombinationsFiltrationIothalamate MeglumineIothalamic AcidSubtraction TechniqueTomography, X-RayComparative StudyJournal ArticleResearch Support, Non-U.S. Gov'tResearch Support, U.S. Gov't, P.H.S.

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R A Kruger, J A Nelson, D Ghosh-Roy, F J Miller, R E Anderson, P Y Liu. 1983. Dynamic tomographic digital subtraction angiography using temporal filtration.. https://doi.org/10.1148/radiology.147.3.6342037

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