BACKGROUND Controversy exists as to whether low-osmolality radiographic contrast agents, which have less detrimental pharmacological effects but are considerably more expensive than high-osmolality agents, should be used universally or only for selected high-risk patients. METHODS AND RESULTS A randomized, double-blind study was used to compare the frequency and severity of adverse events in ...

ABSTRACT Background Inter-individual variations of non-glomerular filtration rate (GFR) determinants serum creatinine, such as muscle mass, account for the imperfect performance estimated GFR (eGFR) equations. We aimed to develop an equation based on creatinine and total lumbar cross-sectional area measured by unenhanced computed tomography scan at third vertebra. Methods The mass–based eGFR (M...

Multiple cerebral hydatid cysts are rare and usually occur as a result of spontaneous, traumatic, or surgical rupture of a primary hydatid cyst (1]. Surgical treatment of multiple cysts involves a greater ri sk than treatment of a single cyst because of the increased risk of cyst rupture. We report the use of nonionic CT ventriculography for the preoperative examination of a patient with multip...

Dear Editor, Phacoemulsification in eyes with scarred corneas is challenging and due to the poor surgical view, carries an increased risk of complications. 1 In healthy eyes, the cornea is transparent due to the small diameter, and relatively regular size and spacing of stromal collagen fibrils, in addition to similarity of the refractive indices of collagen fibrils (1.411) and the extrafibrill...

Contrast media (CM) in cardiology is used in vessel visualisation, stenosis identification, localisation and identification of vessel ramifications and cardiovascular malformations. The identification of a CM that has the optimum visual properties and a safe profile was investigated in this study, along with other significant parameters. Quantitative assessment in choosing appropriate CM was in...

A randomized double-blind crossover study using Omnipaque 350 mg l/ml (iohexol) and Hexabrix 320 mg l/ml (ioxaglate) in 53 patients undergoing intravenous digital subtraction angiography of the carotid arteries revealed no significant differences in image quality. Some differences were found in subjective side effects that favored Omnipaque. Nausea was reported in four patients after injection ...

Intracranial subarachnoid hemorrhage (SAH) is a rare complication of myelography that can have serious consequences and presents a potentially life threatening complication in humans. In both humans and dogs [1-6], it may lead to raised intracranial pressure, the development of prolonged cerebral arterial spasm and cerebral ischemia [6-8]. The condition has been previously reported in two dogs ...