. The American journal of roentgenology, radium therapy and nuclear medicine . tthey will not be balanced in voltage, thetube with the heavier current receivingthe lower voltage. The meter board de-tached from the machine is shown in Fig. 8. Pseudoscopic Image.—If the shutter isthrown into synchronism in the wrongposition the image on the screen whichshould be presented to the right eye will be presented to the left and vice versa. Theresultant image in space will now appearabove the screen instead of below it, andwill be pseudoscopic instead of image will undergo a transposit
. The American journal of roentgenology, radium therapy and nuclear medicine . tthey will not be balanced in voltage, thetube with the heavier current receivingthe lower voltage. The meter board de-tached from the machine is shown in Fig. 8. Pseudoscopic Image.—If the shutter isthrown into synchronism in the wrongposition the image on the screen whichshould be presented to the right eye will be presented to the left and vice versa. Theresultant image in space will now appearabove the screen instead of below it, andwill be pseudoscopic instead of image will undergo a transpositionsymmetrically with respect to the then becomes possible to insert a pointerto the interior of the image and to measurethe actual distances between differentlandmarks. Or, if the pointer be connectedto a pantographic apparatus, it becomespossible to trace the image and produce across sectional drawing of the part beingexamined. The change between the pseudo-scopic and stereoscopic images is readilymade by means of a reversing switch in themain primary Fig. 8. Meter Panel Detached from the primary voltmeter, secondary , and secondary d-c. (load balanc-ing) milliammeter. The Rationale of Radiotherapy in Uterine Hemorrhage 553 Usefuhiess of the Stereofluoroscope. —Nothing has been said herein concerningthe actual use of the machine and its appli-cation to problems of the .v-ray examina-tion, to diagnosis, or to the localization ofprojectiles. It is unwise at the presenttime to give much more than a descriptionof the apparatus since sufficient operatingexperience is not at hand upon which to base further study. Major Caldwell himselftook the attitude that only by long andcontinued use under actual working con-ditions coiild a rational opinion of itsusefulness be formed, and until this isdone judgment ma}^ best be withheld. Oneof the machines has recently been shipped,and will be put overseas to the test ofreal service. THE R
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