The American journal of roentgenology, radium therapy and nuclear medicine (1906) (14570239818)

Identifier: americanjournroen06ameruoft (find matches)

Title: The American journal of roentgenology, radium therapy and nuclear medicine

Year: 1906 (1900s)

Authors: American Radium Society American Roentgen Ray Society

Subjects: Radiotherapy X-rays

Publisher: Springfield, Ill. C.C. Thomas

Contributing Library: Gerstein - University of Toronto

Digitizing Sponsor: University of Toronto

Text Appearing Before Image:

es by means of the roentgen ray haveappeared, and so many modifications ofthese, that it would appear there should beat least one among the many which wouldmeet the essential requirements of mathe-matical and practical accuracy, simplicityand speed, as well as the great desideratumof mapping several points from which thesurgeon may choose accurately his pomtof attack, instead of from the usual twopoints shown. However, a careful study of these instru-ments as described in the publications Ihave seen, reveal to the practical roent-genologist that they fail to measure up tothese essentials in full, particularly theone last mentioned. The device illustrated in Fig. i and fullydescribed below, is constructed on theparallax principle and under repeatedrigid tests has proven absolutely accurate,rapid, simple and easy of manipulation. DESCRIPTION OF APPAR.A.TUS Referring to the illustration, we see thatthe localizer consists of the following parts: Accurate Localization of Forciarn Bodies 37

Text Appearing After Image:

Fig. I. TECHNIC FOR USING THE LOCALIZER In order to locate a foreign body it isnecessar) to have the usual horizontalroentgenoscope with sliding tube box anddiaphragm. The patient is placed on thetable and the localizer base (a) is slid be-neath the patient and on top of the table,the bar (e) lying level in groove (f) whilebar (w w) rests on upper surface of patientimmediately beneath the fluorescing screen.The diaphragm being wide open and theroom darkened, the tube is energized andforeign body in a general way located; thediaphragm is then closed down, allowing only a small beam of ra\s to pass, when thebase of localizer and bars (c and e) aregently moved imtil the shadows of (y),(x) and foreign body are accurately super-imposed. The diaphragm is then openedwide and the tube shifted so that theshadow of foreign body moves into that of(w) or (w); bar (d) is then pushed in untilit touches the skin surface, and cross-bar(ww) likewise until shadow of (i) fallsin shadow^ of circle (z); t

the american journal of roentgenology 1919 book illustrations x ray roentgen rays medical devices medicine medical therapy images from internet archive canada

1906

University of Toronto

http://commons.wikimedia.org/

public domain