I have found that the technique of administering superficial x-ray therapy in benign conditions of the face such as acne vulgaris is considerably simplified by the use of the illustrated special shield.
This shield eliminates the possibility of slipping and completely protects the ears and hair-bearing areas from the possible harmful action of the x-rays. It is cut from a single sheet of lead foil in the pattern indicated in the accompanying diagram. Shields may be made slightly larger or smaller than this to accommodate unusually large or small heads, but this size shield will suffice for at least 85% of the patients treated. It is quickly placed, the chin strap fastened, and the free edges molded about the anterior scalp line. Several seconds are all that are necessary for the correct placement of this shield.
The accompanying photograph shows the shield in place and the patient
BERNHARDT HJ. A Convenient Shield for X-Ray Therapy About the Head. AMA Arch Derm. 1957;75(2):265. doi:10.1001/archderm.1957.01550140109019
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