We conducted a preliminary evaluation of a digital fluoroscopy sys
tern for general applications, including gastrointestinal imaging, ye
nography, rnyelography, and genitourinary fluoroscopy.The installation is designed primarily for digital fluoroscopy and radiogra
phy of the gastrointestinal tract but is also being eva!uated for a variety of fluoro
scopic procedures, including venography, mye!ography, arthrography, and genito
urinary procedures.U INTRODUCTION
 The development of digital equivalents of conventional radiography and fluoros
copy is critical if digital image acquisition and management are to be extended be
yond the current digital imaging modalities (computed tomography, magnetic res
onance imaging, nuclear medicine, ultrasound, and digital angiography) (1-4).The image intensifier selected for our installation has a
33-cm (13-inch) nominal field size with an electronic zoom feature that provides additional field sizes of 23 cm (9 inches) and 17 cm (7 inches).In this article, we describe the system, its operation, and its parameters and dis
play conventional images paired with digital images obtained in various clinical
 app!ications.?????