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September 25, 1954

Röntgen-Grobstrukturen des Thorax: Experimentelle und klinische Untersuchungen über Durchstrahlung besonders von ausgedehnten Verschattungen der Lungen, mit Diskussionsbeitrag zur Schichtaufnahme und Hartstrahltechnik

JAMA. 1954;156(4):458. doi:10.1001/jama.1954.02950040164030

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The author gives a highly technical and detailed consideration of the various factors entering into a decision as to the optimum technique for making a roentgenogram of the chest. The factors relating to the exposure must be a personalized matter with reference to each patient in order to obtain a roentgenogram with optimal penetration of light, proper exposure, and depiction of contrast-rich areas without overblackening. This cannot be a routine standardized technique with hard rays, nor can there be a standardized exposure with soft rays to suit every case. One must choose a ray that is as hard as necessary and at the same time as soft as will accomplish the objective. Tomography is decribed in detail. Tables have been constructed on the basis of measurements procured in a parafin phantom in order to select the proper milliampere-seconds of exposure for a given voltage and a given thickness of the

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