Treatment of medulloblastoma using a computer-controlled tracking cobalt unit.

Abstract:

:Radiation therapy of the length of the spinal column presents various clinical and physical problems. The completed plan may be complicated to set up, be time-consuming and require daily variation to achieve reasonable dose homogeneity. A case of medulloblastoma is used to illustrate the steps in producing a plan for dynamic treatment using a computer-controlled tracking cobalt unit. After definition by computed tomography, the target is considered in segments in order to develop a plan which keeps the spinal cord constantly positioned at the beam isocentre. The main computer is used to develop the patient treatment file and information is transferred to a second computer which controls and monitors the safe functioning of the cobalt unit. The cranial fields are treated separately in a conventional way. Good and consistent control of the dose distribution is achieved along the entire target volume. This technique is a marked improvement over all existing methods of treating the spinal axis.

journal_name

Clin Radiol

journal_title

Clinical radiology

authors

Tate T,Brace JA,Davy TJ,Morgan HM,Skeggs DB,Tookman AJ

doi

10.1016/s0009-9260(85)80126-4

subject

Has Abstract

pub_date

1985-03-01 00:00:00

pages

209-12

issue

2

eissn

0009-9260

issn

1365-229X

journal_volume

36

pub_type

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