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

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

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

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

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

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

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

Surgical endarterectomy has been shown to be superior to medical treatment in the management of severe carotid stenosis. Endarterectomy, although effective, does have limitations, and percutaneous transluminal angioplasty with stent may offer an alternative modality of treatment. We report on a patient with severe coronary disease that femoral arterial cannulation was not possible due to aorto-femoral shunt operation and absent pulse. The transradial approach was used for aortography, bilateral carotid angiography and successful elective stent deployment in the left internal carotid artery. The transradial approach might be useful alternative in case of problems with femoral approach.
Angiography ; Angioplasty* ; Aortography ; Carotid Arteries* ; Carotid Artery, Internal ; Carotid Stenosis* ; Catheterization ; Coronary Disease ; Endarterectomy ; Humans ; Stents*

In order to evaluate the ability of spin-echo MR imaging to differentiate slow flow from mural thrombus in aortic diseases, we reviewed the spin-echo MR images of 13 patients with intraaortic thrombus documented by CT (N=11) or aortography (N=2). Six patients had aortic aneurysms and seven had aortic dissection. Intraaortic mural thrombi were accompanied by flow-related intraluminal signal of various patterns and extents in all 13 patients. On 10 gated MR studies, slow flow regions showed even-echo rephasing phenomenon (N=8), interslice variation of signal intensities of the intraluminal signal (N=7) and flow-related ghost artifact (N=2). However, these MR flow phenomena were obscured on two of three non-gated studies. Seven of 13 intraaortic thrombi remained hyperintense on T2-weighted second-echo images. In these circumstances, a hypointense boundary layer between slow flow and mural thrombus, which was caused by either 'boundary layer dephasing phenomenon' of slow flow or 'paramagnetic T2 shortening' of fresh clot at the edge of mural thrombus, was useful in discriminating the area of slow flow from that of mural thrombus. Proper interpretation of spin-echo MR images may obviate the need for phase display imaging or gradientecho imaging in differentiating slow flow and mural thrombus.
Aortic Aneurysm ; Aortic Diseases* ; Aortography ; Artifacts ; Humans ; Magnetic Resonance Imaging ; Thrombosis*