System and method for determining orientation of planes of imagi

Details System and method for determining orientation of planes of imagi System and method for determining orientation of planes of imagi

1988-04-15

1989-12-05

Thaler, Michael H.

Surgery

Truss

Pad

128898, 378205, A61B 1900

Patent

active

048845663

ABSTRACT:
An apparatus for use in determining the orientation and location of an image plane, particularly when imaging the head of a human being, has an elongated flexible channel provided for containing an imaging-opaque fluid which is visible in the image. First and second carriers are each provided for supporting three respective portions of the elongated flexible channel at respective orientations transverse to the image plane and in predetermined space relation with respect to one another. Preferably, the portions of the said elongated flexible channel are arranged substantially as legs of a triangle. A support arrangement maintains the first and second carriers in fixed spatial relation to one another and to the head of the human being. The present invention can be used in any of several known imaging modalities by using appropriate contrast agents. After imaging, the portions of the said elongated flexible channel appear as points in the image, the location of the plane of imaging, and its orientation, being determined by analysis of the distance between such points, and the ratios of the distances between them. Such analysis can be performed by computer. Additionally, with the use of the present invention, computer analysis can be used to reconstruct a given set of consecutive image planes, such as from MRI, to match another given set of image planes, such as from PET.

REFERENCES:
patent: 3614950 (1971-10-01), Rabey
patent: 4618978 (1986-10-01), Cosman

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