Topic
Metrizamide
About: Metrizamide is a research topic. Over the lifetime, 1317 publications have been published within this topic receiving 18782 citations. The topic is also known as: Amipaque & 3-acetamido-5-[acetyl(methyl)amino]-2,4,6-triiodo-N-[(3R,4R,5S,6R)-2,4,5-trihydroxy-6-(hydroxymethyl)-3-oxanyl]benzamide.
Papers published on a yearly basis
Papers
Journal Article•
TL;DR: Centrifugation of human white blood cells over either Ficoll-Hypaque or slightly hypertonic Metrizamide discontinuous gradients reliably produces separate fractions that are enriched for either neutrophilic or eosinophilic granulocytes.
Abstract: Centrifugation of human white blood cells over either Ficoll-Hypaque or slightly hypertonic Metrizamide discontinuous gradients reliably produces separate fractions that are enriched for either neutrophilic or eosinophilic granulocytes. This single step purification routinely yields 90 to 100% pure neutrophils and 85 to 100% pure eosinophils. Metrizamide gradients, in particular, reproducibly provide high yields of 90 to 100% pure eosinophils from normal subjects with 2 to 3% eosinophils in their peripheral blood. The method does not damage cells as judged by morphologic or functional criteria. The purified cell populations were tested for their ability to damage antibody-coated schistosomula either by the measurement of 51 Cr release from labeled organisms, or by direct morphologic assessment. Neutrophils were superior in their ability to release 51 Cr from labeled organisms, but eosinophils adhered to the organisms to a greater extent and induced microscopically detectable damage.
377 citations
TL;DR: The different findings from these two examinations are analyzed and a classification of arachnoid cysts of the middle cranial fossa into three basic types is proposed.
317 citations
TL;DR: The most important complications of intravascular administration of contrast agents include idiosyncratic (anaphylactoid) reactions, shock, congestive heart failure, cardiac arrhythmias, acute renal failure, and neurotoxic effects.
Abstract: The most important complications of intravascular administration of contrast agents include idiosyncratic (anaphylactoid) reactions, shock, congestive heart failure, cardiac arrhythmias, acute renal failure, and neurotoxic effects. The incidence of serious neurotoxic effects is low. Entry of contrast agents into the central nervous system normally is limited but may be increased by osmotic opening of the blood-brain barrier with cerebral arteriography or arch aortography. Most neurotoxic effects are thought to represent direct effects of the contrast agent on brain or spinal cord. Adverse effects with arteriography include seizures, transient cortical blindness, brain edema, and spinal cord injury. Most cases of focal brain deficit (other than cortical blindness) are attributed to embolism secondary to the catheter. Seizures may occur with intravenous administration, especially in patients with brain tumors or other processes disrupting the blood-brain barrier. The most important adverse effects observed with myelographic agents include acute and chronic meningeal reactions with iophendylate, and seizures and transient encephalopathy with metrizamide.
230 citations
TL;DR: The stabler, more inert nature of Nycodenz endows it with a number of favorable properties as a gradient medium.
152 citations
TL;DR: SCMR imaging is a viable alternative to MM and, together with computed tomography, if needed, provides a thorough examination of the cervical region and was as sensitive as CTM for identification of disease level, but not as specific for type of disease.
Abstract: A prospective study was undertaken to compare the accuracy of surface coil magnetic resonance (SCMR) imaging, metrizamide myelography (MM), and computed tomography with metrizamide (CTM) in the determination of cervical radiculopathy. Surgical findings were the objective measure of accuracy. Fifty-two patients underwent all imaging studies. Studies were evaluated for disease location and type (bone vs. soft tissue). Twenty-eight patients underwent subsequent cervical surgery at 39 levels form an anterior interbody approach. Predictions made with SCMR imaging were surgically confirmed in 74% of patients, with CTM in 85%, and with MM in 67%. There was 90% agreement with surgical findings when SCMR imaging and CTM were used jointly, and 92% agreement when CTM and MM were used jointly, In general, SCMR imaging was as sensitive as CTM for identification of disease level, but not as specific for type of disease. MM was the modality least specific for disease type. The major advantage of CTM was its ability to distinguish bone from soft tissue, for which contrast material is unnecessary. SCMR imaging is a viable alternative to MM and, together with computed tomography, if needed, provides a thorough examination of the cervical region.
147 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2016 | 1 |
| 2011 | 1 |
| 2010 | 1 |
| 2009 | 11 |
| 2007 | 1 |
| 2006 | 1 |