Magnetic resonance cholangiopancreatography (MRCP) is an emerging non-invasive technique for direct visualization and evaluation of the biliary and pancreatic duct [l-3]. Signals from the regional gastrointestinal tract may obscure the bile ducts and degrade the diagnostic efficacy of MRCP. A mixture of barium sulfate and gastric antacid has been proved as a low cost, well tolerated, and effect...

BACKGROUND Usually the suitable consistence identified and indicated as safe by videofluoroscopic method has been empirically obtained by association of barium sulfate solution with meals. However, it has been evidenced to be very difficult to reproduce this consistence in nutritional rehabilitation therapy from subjective information. AIM To build two reproductive similar crescent viscositie...

The membrane potential and membrane input resistance of cortical astrocytes from newborn mice were recorded with and without exposure to 1 mM barium. Barium treatment drastically decreased the membrane response to 0 and 35 mM K+. It also revealed an electrogenic component of the Na+,K(+)-ATPase as evident by a biphasic depolarization as a response to ouabain, which was monophasic without barium...

PbMg1/3Nb2/3O3 (PMN) powder was prepared by citrate organic solution, and barium titanate (BT) seed particles were added to encourage the perovskite phase formation. Sintering was followed using the constant heating rate mode of a dilatometer, and it was observed that the seed concentration affected the PMN shrinkage rate and crystal structure. The study of the lattice parameters of the samples...

introduction The radiology departments at Southmead and Ham Green Hospitals, Bristol, have provided a general practitioner service for general work and barium meals for some years. Unfortunately, the pressure of hospital inpatient and out-patient work led to a waiting period of from three to six months for non-urgent general practitioner barium meal requests. The appointment of one ?f us (C.J.)...

BACKGROUND/AIMS The purpose of this study was to determine important manometric metrics for the analysis of pharyngeal and upper esophageal sphincter (UES) function and to investigate the effect of viscosity and other confounding factors on manometric results. METHODS Manometric studies were performed on 26 asymptomatic volunteers (12 men and 14 women; age, 19-81 years). The manometric protoc...

Barium granuloma of the colon and rectum is a rare complication of X-ray examination of the digestive tract using barium. The authors report 5 new cases occurring in the last 3 years. Histological examination revealed a granulomatous reaction with greyish finely granular refractile PAS-negative material located in the cytoplasm of histiocytes and in the interstitial space. The radiographic stud...

This paper describes a tracking method that we have developed in order to track a barium bolus in radiological images sequences. Our method combines both region tracking by the means of a deformable region model, and contour tracking by the means of active contours. It allows the tracking of a barium bolus during its descent along the oesophagus and the lower oesophageal sphincter. Thus, we are...