. Radiography and radio-therapeutics . mmencing with a2 mm. filter, a pastille doseat the half distance may begiven weekly. The pastille isused on the distal side of thefilter, and the patient, there-fore, receives a full dose at each sitting. After three or four doses withthis thickness of filter it will be found necessary to increase the thicknessto 3 mm. and later to 4 mm. or more. The skin must be carefully watched for reaction. Should this beexcessive the treatment must be suspended for a time by that route, andthe suprapubic route may then be utilised. A compressor should beemployed and
. Radiography and radio-therapeutics . mmencing with a2 mm. filter, a pastille doseat the half distance may begiven weekly. The pastille isused on the distal side of thefilter, and the patient, there-fore, receives a full dose at each sitting. After three or four doses withthis thickness of filter it will be found necessary to increase the thicknessto 3 mm. and later to 4 mm. or more. The skin must be carefully watched for reaction. Should this beexcessive the treatment must be suspended for a time by that route, andthe suprapubic route may then be utilised. A compressor should beemployed and the tube brought well down towards the pubis, a cylindercompressor being a good one to use. The gland can thus be irradiatedfrom above for several doses, and then the perineal route can be tried. Inthis way it is possible to keep on with treatment for a considerable lengthof time. Improvements generally begin to show after three or four doses,and as a result of the increase of comfort the general health of the patientimproves Fig. 360.—Showing the projection of rays into a deep part by means of the rotating , B, C. Three circles upon the skin surface, onewithin the other, showing the rays focused upon thepoint X. EXOPHTHALMIC GOITRE 467 An alternative method of treatment, and one likely to take its place,is the following : a large amount of current, 4 to 5 milliamperes, is passedthrough a hard tube, 10 Bauer, a 3 mm. aluminium filter being employed,and the dose measured by Kienbock paper. At least 10 X on the skin surfaceis given, the perineal and suprapubic routes being employed with as manyports of entry as possible, so as to get in the maximum dose to the gland. The rotating tube (p. 419) suggests itself as the best method for thetreatment of the prostate gland. The focus point of the rays may, byits use, be centred on the gland. THE TREATMENT OF EXOPHTHALMIC GOITRE See also page 576. The routine medical treatment by drugs has proved to be merelypalliative,
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