• Advances in pediatric surgery
• /
• v.10 no.2
• /
• pp.136-141
• /
• 2004

Biliary atresia (BA) with extrahepatic biliary cysts (EHBC) is a rare disease. It has been generally recognized as type I (correctable with cystic dilatation), which means a good prognosis. From a total of 73 patients with BA who underwent operation from September 1988 to September 2003 at our institute, 7 (9.6 %) cases of type III BA with EHBC (uncorrectable with cystic dilatation) are reviewed. Clinical findings, laboratory data, radiologic findings, treatment methods and outcomes were reviewed. Female was more prevalent (male to female ratio; 2:5). All cases were type III with EHBC according to the intraoperative cholangiography, and underwent Kasai' s portoenterostomy. The mean age was 57 days at operation. Three patients(42.9 %) are long term survivors. Further evaluation is needed to determine the correlation between prognostic factors and outcome for.

• Journal of Chest Surgery
• /
• v.23 no.6
• /
• pp.1263-1269
• /
• 1990

Two patients with uncorrectable cyanotic cardiac anomalies underwent total cavopulmonary shunt[modified Fontan operation]. Case I was a 14 years old male with dyspnea and cyanosis after birth. Aortogram showed TGA combined with overriding of aorta, pulmonary stenosis, complete atrioventricular septal defect, interruption of inferior vena cava, and situs inversus totalis. We had performed total cavopulmonary shunt using with 16 mm Gortex Graft in single atrium to bypass the hepatic vein to pulmonary artery. Postoperatively, patient sustained low PaCO2 and low cardiac output and then expired at 19th postoperative day. The cause of death of the patient would be low cardiac output. Case II was a 6 years old female with dyspnea and cyanosis after birth. Aortogram showed tricuspid atresia[Type IIb], transposition of great arteries, atrial septal defect, ventricular septal defect and pulmonary stenosis, We had performed total cavo-pulmonary shunt using intraatrial baffle[tunnel] with Goretex patch. The postoperative course of this patient was good without event.

• International Journal of Aeronautical and Space Sciences
• /
• v.14 no.4
• /
• pp.398-407
• /
• 2013

Optical tomography was used to measure the pattern of spray cross-section. The maximum-likelihood estimation (MLE) algorithm was used to reconstruct the spray cross-section from the measured transmission rate of the spray. A swirl-type injector was used to form an optically dense spray, and the test was carried out in a high-pressure chamber, to control the pressure condition of the test site. Before the experiment, the reliability of the MLE-based reconstruction algorithm was verified, by comparing it with a conventional filtered back projection reconstruction (FBP) method. The MLE algorithm showed superior reconstruction of the image. In the spray patternation experiment, the results of the optical tomography and optical line patternator, which uses Mie scattering signal information, were compared. While measuring the cross-section of optically dense spray, the intensity of the scattering signal had attenuated to an uncorrectable level, which led to incorrect spray pattern measurement by the optical line patternator. However, reliable results were obtained by optical tomography, under the same condition. Finally, the pattern of the optically dense spray was measured at various chamber pressures, of up to 3 MPa. As the chamber pressure increased, the hollow cone-shaped swirl spray shrank, and the attenuation coefficient value of the inner region increased.