نتایج جستجو برای: barium

تعداد نتایج: 8343  

Journal: :گوارش 0
ghodratollah montazeri negin nouri arezou estakhri javad mikaeeli shapour shirani shifteh abedian

background: subjective assessment of primary achalasia is not accurate. we aimed to evaluate surface of barium retention in the objective assessment of these patients. materials and methods: subjective and objective esophageal functions of 99 patients with primary achalasia were evaluated initially and 43 of them were reevaluated one month after balloon dilation. results: predilation: â  9cases...

Journal: :The Medical journal of Malaysia 2003
N C Liew Tikfu Gee K Sandra Y A Gul

Perforation with extravasation of barium is a rare complication of contrast enema examination of the large bowel with a high associated mortality rate. The experience of performing a re-laparotomy in a patient previously exposed to barium peritonitis is even less common. We describe an elderly male patient with a Hartmann's procedure performed a year previously, presenting with peritonitis foll...

Journal: :British medical journal 1985
P I MacFarlane V Miller

Fifty one infants and older children with suspected gastro-oesophageal reflux entered a study comparing the diagnostic accuracy of a standard barium swallow examination with that of ultrasound scanning. All children were examined by both techniques. In 40 cases there was unequivocal agreement between the examinations. Of the remaining patients, four had definite reflux by ultrasonic criteria bu...

Journal: :Investigative ophthalmology & visual science 1982
A E Walter D A Bolnick L W Haynes A J Sillman

With use of sodium aspartate, the late receptor potential of the excised, perfused bullfrog retina was isolated. By means of a two-flash technique, rapid dark adaptation of rods was monitored. As in cones, barium ions were found to delay the onset of rapid dark adaptation of rods, but the rate of recovery, once begun, was virtually unaffected. The effect of barium on the amplitude-intensity rel...

2001
Michel BERNAT Thomas CHURCH

The determination of barium and strontium directly from sea water by isotope dilution mass spectrometry proves to be an efficient, precise, and virtual blank free procedure. Results for an eastern Pacific profile confirm a regularly increasing barium concentration from 5 to 23 ,clg/kg at 2500 m, but strontium concentrations appear to be nearly homogeneous below 50 m at 7.6 f 0.1 I;lg/kg with a ...

Journal: :Journal of colloid and interface science 2007
Franca Jones Phillip Jones Mark I Ogden William R Richmond Andrew L Rohl Martin Saunders

Ethylenediaminetetraacetic acid (EDTA) is a known complexing agent that interacts with a host of cations. In this paper, various techniques are used to elucidate the mechanism of interaction between EDTA and barium sulfate surfaces. It is shown that complexation with metal ions is not sufficient to explain the inhibition of barite crystallization but that other processes such as chemisorption m...

Journal: :international journal of pediatrics 0
ghamartaaj khanbabaee associate prof. of pediatric pulmonology, department of pediatric pulmonology, mofid children hospital, shahid beheshti university of medical sciences, tehran, iran farid imanzadeh associate prof. of pediatric gastroenterology, department of pediatric gastroenterology, mofid children hospital, shahid beheshti university of medical sciences, tehran, iran masood kiani fellow of pediatric pulmonology, department of pediatric pulmonology, mofid children hospital, shahid beheshti university of medical sciences, tehran, iran amirhossein hosseini fellow of pediatric gastroentrology, mofid children hospital, shahid beheshti university of medical sciences, tehran, iran neda ghiam mshsc candidate, dalla lana school of public health, university of toronto, toronto, canada

introduction: proximal displacement of stomach and gastro-esophageal junction into the thoracic cavity results in a condition known as hiatal hernia (hh). sometimes this entity is neglected in practice and the patient is handled as gastroesophageal reflux disease, asthma or other non-surgical diagnosis.case: here we present a 6 months-old female infant who present with bloody emesis since two m...

Journal: :The Medical journal of Malaysia 1986
Goon Hong Kooi

Barium enema hydrostatic reduction was carried out for eight patients with Intussusception over a six-month period There were five successes (62%) and three failures. There were no mortality or complications arising out of this procedure. The technique is discussed This procedure offers many advantagesover surgicalreduction. However, it is not a substitute for surgery which is still indicated i...

Synthesis of BaFe12O19 magnetic nano particles via precipitation in different pH conditions have been reported. The certain molar ratio of Fe/Ba = 12 selected and sodium hydroxide was used as a precipitant agent. X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and vibrating sample magnetometer (VSM) were used to consider the structural, morphological and magnetic properties of bariu...

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