PURPOSE To determine whether acute hypertension (HT) is a risk factor for damage to the blood-brain barrier in carotid angiography with nonionic contrast media. METHODS Anesthetized rats received intravenous injections of technetium-99m-pertechnetate and horseradish peroxidase. Two groups of rats received metaraminol to raise their blood pressure to between 165 and 190 mmHg peak systolic and ...

INTRODUCTION Visualization of tumor angiogenesis using radionuclide targeting provides important diagnostic information. In previous study, we proved that an arginine-arginine-leucine (RRL) peptide should be a tumor endothelial cell specific binding sequence. The overall aim of this study was to evaluate whether (99m)Tc-radiolabeled RRL could be noninvasively used for imaging of malignant tumor...

A 23 day old infant patient underwent 99mTc-denatured RBC scanning for locating possible ectopic spleen in our department.  The scan showed no tracer activity in normal splenic bed in the left upper quadrant and an ectopic spleen was shown on the right side of abdomen inferior to the liver. 99mTc-denatured RBC scan is an easy and available method for splenic localization i...

  Introduction: Ubiquicidin (UBI) 29-41 is a synthetic antimicrobial peptide that binds with the microbial cell membrane at the location of infection. This study was conducted to evaluate its probable efficacy as an infection-imaging agent with potential to differentiate bacterial infection from sterile inflammation in humans. Methods: Fifteen diabetic foot patients ...

The paper presents results of studies on the possibility using ultrafiltration method supported by sorption low-cost, easily accessible aluminosilicates to purify water contaminated with radionuclides. An aqueous solution radionuclides in form cations at different oxidation states—Cs(I)-137, Co(II)-60 and Am(III)-241—as well as pertechnetate anions—TcO4?-99m—was treated proposed hybrid method. ...

UNLABELLED After the extravasation of a therapeutic dose of (131)I-metaiodobenzylguanidine that produced a radiation burn to a patient's forearm, we instituted a catheter placement verification protocol. METHODS Before therapy infusion, proper placement is verified by administering 37 MBq of (99m)Tc-pertechnetate through the catheter, and monitoring activity at the administration site and on ...

A Meckel's diverticulum was diagnosed by mesenteric angiography in a 34 year-old patient who presented with hematochezia and dropping hemoglobin. The case demonstrates the challenges often encountered in workup of occult gastrointestinal (GI) bleeding, and shows that angiographic diagnosis of Meckel's diverticulum is possible, even in the absence of angiographic evidence of active extravasation...