Cardiovascular phantom
AssigneeVari-X
InventorWilliam B. Ridge
Life of this patent
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Abstract
This specification sets forth a cardiovascular phantom. The phantom is adapted for placement on a table between an X-Ray tube and a film camera. The phantom is formed from absorptive material comprising at least one layer of metallic material on a plastic board. The metallic material is formed in the shape of arterial vessels from a radiopaque material. The radiopaque material and phantom absorb the X-Rays in an analogous manner to a person's heart. The phantom provides an analog to allow adjustments for the X-Ray process used for cardiovascular analysis.
Claims22
A cardiovascular cine adjustment system having an X-Ray tube beneath a support table and an image intensifier with a film camera connected thereto and a TV camera for respectively viewing and recording cardiovascular activity wherein the improvement comprises:
- a cardiovacular phantom on said table between said X-Ray tube and said film camera said phantom formed from absorptive material comprising at least one layer of metallic material on a board formed in the aborescent shape of radiopaque material within the system of coronary arteries;
- and wherein,
- said board and absorbing material are encapsulated within a plastic material.
A cardiovascular phantom for providing the proper indexing of a cine camera for X-Ray cineangiography comprising:
- a plastic boardlike substrate;
- a metallic X-Ray absorptive material configured with the arborescent outline of a system of coronary arteries on said plastic boardlike substrate for absorbing X-Rays;
- and,
- a covering material for said board.
A method for adjusting cineangiographic cameras comprising:
- providing a phantom having at least one board with a metallic arborescent outline of a system of coronary arteries formed of lead;
- placing said phantom on a patient support table;
- adjusting an X-Ray tube, said table, an image intensifier and a cine camera with respect to each other;
- setting the cine program as routinely used for filming a patient;
- making a cine run of the phantom;
- processing the film produced during the cine run of the phantom;
- and,
- measuring the density of at least one of the images on the film produced during the cine run.
Dependencies are inferred from the claim text.