X-ray or gamma ray systems or devices – Specific application – Absorption
Patent
1987-01-15
1989-05-02
Church, Craig E.
X-ray or gamma ray systems or devices
Specific application
Absorption
378 64, 378119, 378147, 378149, A61N 510
Patent
active
048274917
ABSTRACT:
Apparatus for treatment by radiation of an intracranial portion disposed at a predetermined region, comprises a linear accelerator for supplying a source of energetic electrons, and a collimator disposed adjacent the predetermined region for supplying an X-ray source of radiation to the predetermined region. The collimator includes a plurality of channels oriented toward the predetermined region. Each channel has a target which produces the X-ray radiation when the respective target is selectively exposed to the energetic electrons. The collimator also has a cover layer of radiation attentuation material having a low atomic or Z number and that extends over the outer surface of the collimator but leaves unexposed the plurality of channels. Preferably, the cover layer has a thickness at least equal to the range of the energetic electrons.
A method of treating an intracranial portion with the apparatus of the present invention is also disclosed.
REFERENCES:
patent: 2139966 (1983-12-01), Loebell
patent: 2638554 (1953-05-01), Bartow et al.
patent: 3777124 (1973-12-01), Pavkovich
patent: 4045672 (1977-08-01), Waianube
patent: 4157475 (1979-06-01), Stock et al.
patent: 4250425 (1981-02-01), Gabbay et al.
patent: 4292563 (1981-09-01), Gabbay et al.
patent: 4321473 (1982-03-01), Albert
patent: 4327293 (1982-04-01), Taumann
patent: 4504964 (1985-03-01), Cartz et al.
patent: 4608977 (1986-09-01), Brown
patent: 4670894 (1987-06-01), Birnbach et al.
E. O. Backlund et al., "Studies on Grainophryngiomas", Acta Chir Scand, vol. 138, pp. 749-759 (1972).
J. Bradshaw, "Special Report. The Stereotactic Clinical Radiology, Radiosurgery Unit in Sheffield", vol. 37, pp. 277-279 (1986).
F. Columbo, et al., "External Stereotactic Irradiation by Linear Accelerator", Neurosurgery, vol. 16, No. 2, pp. 154-160 (1965).
S. T. Hecht et al., "Stereotactic Heavy-Ion Bragg Peak Radiosurgery for Treatment of Deep Arteriovenous Malformations".
M. D. Heifetz et al., "Single-Beam Radiotherapy Knife", J. Neurosurg., vol. 60, pp. 814-818 (1984).
A. A. Patil et al., "Single Beam Radiosurgery Using the Linear Accelerator and CT Stereotaxic", No. 57.
L. Leksell, "Stereotactic Radiosurgery, Journal of Neurology, Neurosurgery, and Psychiatry", vol. 46, pp. 797-803 (1983).
Leksell Stereotactic Gamma Unit, "Technical Description and Equipment Specifications for Cobalt-60 Gamma Unit for Stereotactic Radiosurgery", (1985).
Philips, "Complete and Integrated Programme for Radiation Therapy" (1982).
F. Pozza et al., "CNS External Stereotaxic Irradiation: A New Role for Radiotherapy", Varian Centerline, pp. 3-4 (1986).
Scanditronix, "Medical Microtrons for Precision Radiotherapy (NM 10, 14 and 22)" (1981).
Church Craig E.
Freeman John C.
New York University
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