No abstract available.
Aortography* ; Echocardiography* ; Humans ; Infant, Newborn* ; Radial Artery*

Abdonimal aortography and histopathologic examinatio after absolute ethanol infusion at ast (0.4cc/sec) andslow speed (0.04cc/sec) were performed on 16 rats(2 controls, 7 fast infusion groaup, 7 slow infusion group).Angiographic and histopathologic findings were correlated and the findings of slow and fast infusion groups werestudied. The rsults are as follows: 1.Histopathologic findings of the fast infusion group revealed wide area ofglomerular and tubular collapes, obliteration of the free space between the Bowmann's capsule and golmerulus,sloughing and loss of the endothelium, fresh thormbi attached to the wall, and cleavage of the muscle layer of thearteries. 2. Angiographic findings of the fast infusion group revealed luminal irregularity, early ostruction ofthe aorta and the renal arteries,and delayed circulation time. 3. Histopathologic findings of the slow infusiongroup revealed degenerated, coalesced red blood cell packed in the glomeruli, focal areas of severe glomerular andtubular damage on relatively normal backgroun, endothelial and muscular damage of the arteries. 4. Angiographicfindings of the slow infusion group revealed focal perfusion defect of the kidney, delayed circulation time, andmild luminal irregularity, but there was no obstruction of the major arteries. 5. In conclusion, author believesthat endothelial damage and thrombus formation from the damaged vessel wall, as well as direct cytotoxicity and insitu emboli fommation play a significant role in the embolic effect of absolute ethanol.
Aorta ; Aortography ; Arteries ; Endothelium ; Erythrocytes ; Ethanol* ; Kidney ; Perfusion ; Phenobarbital ; Thrombosis

The authors have experienced a case of Takayasu's arteritis associated with Takayasu's retinopathy which is confirmed by aortography and fluorescent angiography in a 14 year old female.
Adolescent ; Angiography ; Aortography ; Arteritis* ; Female ; Humans ; Takayasu Arteritis

Pulmonary sequestration is a very rare congenital malformation in which a mass of pulmonary tissue is detached from the normal lung and receives its blood supply from a systemic artery. It may be clinically asymptomatic or it has a wide spectrum of various clinical manifestations. The clinical therapeutic approach is to resect the sequestered lobe to prevent frequent complication such as infection. The arterial embolization of feeding artery is a new technique and a less invasive treatment than conventional surgical removal. We have experienced a 17- year-old male with pulmonary sequestration whose complaints were pain in left lower chest. He was diagnosed by computed tomography and aortography and successfully treated with embolization of feeding artery. We report a case of pulmonary sequestration treated with arterial embolization instead of surgery.
Aortography ; Arteries ; Bronchopulmonary Sequestration* ; Humans ; Lung ; Male ; Thorax

We successfully closed the isolated patent ductusarteriosus(PDA) in 2 female patients using the Rashkind Double-Disc Occlusion system. nonsurgical closure of PDA usin plug was introduced by Porstmann in 1968 through transfemoral artery catheter and using umbrella by Rashkind in 1977 througth venous site. There has been continued improvement and simplification of the equipment as well as in the implantation technique. Nowaday, a multicenter study was conducted to test the safety and effectiveness of this interventioal method in States. Successful closure rate was high but some problems were reported such as embolization, abnormal deployment and residual shunt. Residual shunt was visualized by aortography in our both cases immediately after intervention but continuous murmur could not be heard in both cases. Oxygen step-up disappeared immediately after occluder implantation in both cases. Complete occlusion was expected with thrombus in near future.
Aortography ; Arteries ; Catheters ; Ductus Arteriosus, Patent* ; Female ; Humans ; Oxygen ; Thrombosis

Traumatic thoracic aortic injury is typically fatal. However, recent improvements in pre-hospital care and diagnostic modalities have resulted in an increased number of patients with traumatic aortic injury arriving alive at the hospital. Also, the morbidity and mortality associated with endovascular repair are significantly lower than with conventional open surgery in traumatic thoracic aorta injury. We experienced two cases of successful management of traumatic thoracic aortic dissection with endovascular stents caused by traffic accidents.
Accidents, Traffic ; Aorta, Thoracic ; Aortography ; Humans ; Multidetector Computed Tomography ; Stents

Aortic dissection is clinically suspected from the typical symptoms and signs and may be confirmed by computed tomography or aortography. But atypical presentations can be seen in a minority of cases, such as SVC syndrome, right pulmonary artery stenosis etc. We present a case which was initially suspected to be a right atrial tumor because of a large filling defect in the right atrium on radionuclide angiocardiography but finally confirmed to be dissection of ascending aorta by computed tomography.
Angiocardiography ; Aorta ; Aortography ; Constriction, Pathologic ; Heart Atria ; Pulmonary Artery

Pulmonary sequestration is a rare congenital mass of nonfunctional pulmonary tissue that lacks of a normal connection with the bronchial tree or pulmonary artery. It may be clinically asymptomatic but may be complicated by recurrent infection. The classical therapeutic approach is to resect the sequestration lobe to prevent infection. The arterial embolization of feeding artery is a new technique and a less invasive treatment than conventional surgical removal. We reviewed two patients with pulmonary sequestration whose complaints were persistent fever and cough or hemoptysis. They were diagnosed by computed tomography and aortography and treated with embolization of feeding arteries. They were sucessfully treated without any complication. We report two cases of pulmonary sequestration treated with arterial embolization instead of surgery.
Aortography ; Arteries ; Bronchopulmonary Sequestration* ; Cough ; Fever ; Hemoptysis ; Humans ; Pulmonary Artery

Aortic dissection is a medical emergency requiring prompt diagnosis and maybe emergency surgery especially if the ascending aorta is involved. We have performed transesophageal echocardiography(TEE) in 22 consecutive patients with suspected aortic dissection. The diagnosis was subsequently proven in 14 patients(9 males, 2 females, mean age 51+/-11years) on the basis of TEE. The results and effectiveness were compared with computed tomography (CT) and aortography. Seven patients had type I aortic dissection, three had type II and four had type III. Twelve patients had hypertension. There was aortic regurgitation in five of seven patients with type I dissection and in all three patients with type II dissection. Type I dissection was found by TEE in seven patients who had intimal flap showing parallel movement to the aortic wall. CT was positive in only three of five of these patients. Type II dissection was seen in three patients by TEE. CT demonstrated dissection in one of three of these patients. In one patient the false lumen was filled with a thrombus, which was negative at angiography. Type III dissection was found by TEE in four patients. CT was positive in two of four patients. Aortography was performed and positive in one patient. The starting point of aortic dissection could be demonstrated in all four patients by TEE. TEE was well tolerated by patients with aortic dissection and associated with no major complications. In conclusion. TEE was very useful in detecting aortic dissection and in providing a dynamic information of the intimal flap and of the presence and extent of luminal thrombus with flow dynamics.
Angiography ; Aorta ; Aortic Valve Insufficiency ; Aortography ; Diagnosis ; Echocardiography, Transesophageal* ; Emergencies ; Female ; Humans ; Hypertension ; Male ; Phenobarbital ; Thrombosis

Diagnostic accuracy in localizing tumors by means of computed tomography (CT), adrenal scintigraphy, ultrasonography (US) and IVP was compared in 12 cases of adrenal tumors which were experienced during last 6 years. The following results were obtained : 1. The patient group consists of 8 pheochromocytomas, 3 primary aldosteronism, and 1 Cushing syndrome. 2. For the initial diagnosis of adrenal cortical tumor (primary aldosteronism, Cushing syndrome) CT and adrenal scintigraphy are reliable and noninvasive modalities with high diagnostic accuracy, whereas in pheochromocytoma, US, CT and adrenal scintigraphy was useful. 3. Invasive diagnostic modalities such as aortography, venous sampling of adrenal gland and venography should be restricted to localizing adrenal tumors cannot be diagnosed by previous non -invasive diagnostic modalities.
Adrenal Glands ; Aortography ; Cushing Syndrome ; Diagnosis ; Humans ; Hyperaldosteronism ; Pheochromocytoma ; Phlebography ; Radionuclide Imaging ; Ultrasonography