Omnidirectional camera is useful for surveillance because the camera captures surrounding images at a time. However, when this kind of camera is installed at the corners, such as room entrance or ...walls, part of its surrounding may be occluded and the advantage of the camera cannot be fully utilized. To solve the problem, in this paper, we have proposed a new type of mirror for omnidirectional cameras, which is an asymmetric hyperboloid mirror. The mirror is divided into multiple parts. Some parts of them are tall and thin, and others are short and wide, to make it be adaptable to various kinds of environments. The tall and thin hyperboloid is lower in imaging quality but better in the range of view, while the short and wide hyperboloid has higher imaging quality but with less range of view. In this paper, the model of hyperboloid mirror and its projection formula are presented. The experimental results show how the adjustments of hyperboloid parameters affect the imaging quality and the range of view. Besides the imaging quality is less being influenced than the range of view.
Interrupted aortic arch associated with an aortopulmonary window is a rare congenital malformation that requires an early diagnosis and surgical treatment to avoid irreversible pulmonary vascular ...changes. We describe herein successful one‐stage repair in a neonate without the use of pericardium or other prosthetic material. Use of a transaortic approach permitted both accurate planning of the appropriate size of pulmonary trunk flap and also facilitated easy repair of the aortopulmonary septal defect. The growth potential of both great arteries was optimized.
To find new candidate loci predisposing individuals to Kawasaki disease, an acute vasculitis that affects children, we conducted a genome-wide association study in 622 individuals with Kawasaki ...disease (cases) and 1,107 controls in a Han Chinese population residing in Taiwan, with replication in an independent Han Chinese sample of 261 cases and 550 controls. We report two new loci, one at BLK (encoding B-lymphoid tyrosine kinase) and one at CD40, that are associated with Kawasaki disease at genome-wide significance (P < 5 × 10^sup -8^). Our findings may lead to a better understanding of the role of immune activation and inflammation in Kawasaki disease pathogenesis. PUBLICATION ABSTRACT
Celotno besedilo
Dostopno za:
DOBA, IJS, IZUM, KILJ, NUK, PILJ, PNG, SAZU, UILJ, UKNU, UL, UM, UPUK
In conclusion, type A IAA was predominant in our series. No correlation was seen between the position of the ventricular septal defect and type of interruption. The occurrence of subaortic stenosis ...was not different in the conal, perimembranous, and muscular ventricular septal defect groups. Both conoventricular malalignment and hypertrophic anterolateral muscle bundle of the left ventricle contribute to the occurrence of subaortic stenosis, which was seen more often in our series. The presence of an aberrant subclavian artery may be a harbinger of subaortic stenosis in conjunction with aortic interruption.
From July 1, 1989 to June 30, 1996, a total of six patients, four male and two female, with double aortic arch (DAA) were registered. They aged 16 days to 6.5 years. There were two patients with ...isolated DAA, and four complicated with intracardiac anomalies. All six patients presented respiratory distress and feeding problem early in life. However, cyanosis, owing to decreased pulmonary blood flow, predominated the clinical picture in each patient having DAA intricated with tetralogy of Fallot (TOF) and pulmonary stenosis, TOF with absent pulmonary valve syndrome, and type II-A tricuspid atresia. DiGeorge syndrome was documented in one patient with TOF and pulmonary stenosis. Expiratory wheezing was remarkable in the patient with TOF and absent pulmonary valve syndrome. Mild cyanosis and heart failure was noted in one patient with ventricular septal defect (VSD), and bicuspid pulmonary valve with mild valvular stenosis. Barium esophagogram showed indentations on esophagus in five patients. Echocardiography was yielding in three infants. Four patients, two isolated and two complex DAA, survived the surgical division of the smaller left aortic arch. One-stage and two-stage operation was performed in patients having DAA intricated with VSD and TOF, respectively. The other two patients with complex DAA remained in close observation owing to the tolerance of symptoms related to intracardiac anomalies.
We describe two neonates with anatomically corrected malposition of the great arteries (ACM). A 1-day-old female newborn, who had the salient clinical findings of Goldenhar syndrome, behaved like a ...patient with the tetralogy of Fallot. The cardiac malformations included ACM, perimembranous inlet and outlet ventricular septal defect with tricuspid valve straddling, conoventricular septal malaligement, bilateral cori without aortic–mitral continuity, pulmonary stenosis at subvalvular, valvular, and supravalvular levels, and bicuspid semilunar valves. After the procedure of left Blalock-Taussig shunt at 3 months of age, cyanosis was alleviated. The other 1-month-old male newborn, who presented with prolonged feeding, tachypnea and tachycardia, likened to a patient with the hypoplastic left heart syndrome. He had a combination of ACM, mitral stenosis, hypoplastic left atrium and left ventricle, a restrictive patent foramen ovale, ventricular septal defect, subaortic conus without aortic–mitral continuity, subaortic stenosis, and a narrow ascending aortic root. Rashkind balloon atrioseptostomy was done with limited success. He survived a Norwood procedure. Transarterial entry of the catheter, which was inverted with the aid of balloon floating maneuver, to hook the retro-aortic pulmonary artery in ACM is recommended.
We describe an 8-month-old male infant, who received a rerouting procedure for infracardiac total anomalous pulmonary venous connection and a 4-mm Gore-Tex central shunt for tetralogy of Fallot with ...pulmonary atresia. The masking effect of the pulmonary outflow in tetralogy of Fallot on the pulmonary venous obstruction in infracardiac total anomalous pulmonary venous connection is discussed. Preoperative recognition of this rare association is warranted, as palliative surgery alone may be disastrous. In addition, juxtaductal pulmonary artery coarctation in tetralogy of Fallot with pulmonary atresia may play a role in camouflaging the pulmonary venous obstruction in this case. Unmasking pulmonary venous obstruction by oral prostaglandin and augmenting pulmonary blood flow by a Gore-Tex shunt, pari passu, did harm this patient.
Cardiac catheterization can be superfluous and risky for sick babies, infants, and young children with total anomalous pulmonary venous connection (TAPVC). This study assessed the accuracy of ...echocardiography in the clinical assessment of pediatric patients with TAPVC before cardiac surgery.
A total of 15 consecutive patients with TAPVC treated between July 1, 1993, and December 31, 1999, were included in this retrospective study. Patients with TAPVC with heterotaxy syndrome were excluded. We assessed this cardiac anomaly preoperatively using plain chest roentgenograms, echocardiography, and magnetic resonance imaging. A combination of suprasternal, parasternal, subcostal, and apical four-chamber views and their tilting scans were employed for diagnosis and to trace the course of the anomalous pulmonary venous connection.
Interatrial right-to-left shunt via atrial septal defects were documented by two-dimensional echocardiography with color Doppler mapping in all 15 patients. Patent ductus arteriosus was found in six patients. Cardiomegaly with enlargement of the right atrium and the right ventricle could be seen on plain chest roentgenograms and by echocardiography in all but two patients with infracardiac TAPVC. In all patients, the left innominate vein, coronary sinus or right atrium, and portal vein were the draining sites of supracardiac, cardiac, and infracardiac TAPVC, respectively. A pattern of continuous flow without phasic variation, which is suggestive of stenosis of the pulmonary vein, was found in two patients with infracardiac TAPVC with obstruction. The surgical findings were reviewed and correlated well with those of the echocardiography.
In infants and children with TAPVC, the drainage sites and flow profiles of the pulmonary veins can be exactly determined by Doppler echocardiography preoperatively, which makes cardiac catheterization and angiocardiography unnecessary.
