CONTRAST MEDIA IN ORBITAL RADIOGRAPHY

Preliminary report on the use of contrast media in orbital radiography.

THE use of contrast media in the orbit dates from 1927, when Staunig and Herrenschwand injected air into the episcleral space, and since that time various media have been used. The ideal medium should provide good contrast in small quantities, be non-irritant, and have suitable qualities of permeation and absorption. The following media will be considered: (1) Air or other gas, (2) Oily media, ...

Contrast radiography of the nasopharynx.

A technique of contrast radiography of the nasopharynx is described and indications for the procedure are reviewed. The main advantage of using this method is the simple and effective way it outlines the tumour mass and shows its response to therapy and any localized recurrences. Characteristic features of tumours at different sites are illustrated. The potential usefulness of this technique in...

Organ dose in kidney imaging with contrast media

Introduction:Intravenous urography (IVU) test includes high number of images and extended imaging size. These make IVU as a diagnostic method with high absorbed doses by sensitive organs such as intestine and gonads in pelvic-abdominal area. In this study absorbed doses of pelvic-abdomen sensitive organs such as Adrenal, Bladder, Colon and Gonads in IVU test. <stron...

Radiographic Contrast-Enhancement Masks in Digital Radiography

Contrast Media: Are There Differences in Nephrotoxicity among Contrast Media?

Iodinated contrast agents are usually classified based upon their osmolality--high, low, and isosmolar. Iodinated contrast agents are also nephrotoxic in some but not all patients resulting in loss of glomerular filtration rate. Over the past 30 years, nephrotoxicity has been linked to osmolality although the precise mechanism underlying such a link has been elusive. Improvements in our underst...