نتایج جستجو برای: digital subtraction

تعداد نتایج: 316678  

Journal: :Journal of radiology case reports 2012
Michael Carstensen Navjot Chaudhary Andrew Leung Wai Ng

A patient with spontaneous intracranial hypotension due to a spinal cerebrospinal fluid (CSF) leak required localization of the leakage site prior to surgical management. Conventional, computed tomography and prone digital subtraction myelography failed to localize the dural tear, which was postulated to be dorsally located. We present here a digital subtraction myelographic approach to accurat...

Journal: :Hong Kong medical journal = Xianggang yi xue za zhi 2011
H K Leung Y Lam K M Cheng C M Chan Y L Cheung

Intracranial aneurysm in twins is a rare clinical disease entity. Only 15 cases have been described in the literature. We report on a pair of identical twins with intracranial aneurysms. One presented with subarachnoid haemorrhage; digital subtraction angiography showed a left posterior communicating artery aneurysm, which was treated by coiling. The patient's twin sister was called for screeni...

Journal: :Journal of the American College of Cardiology 1985

Journal: :Japanese Journal of Radiological Technology 2000

Journal: :Japanese Journal of Radiological Technology 1991

Journal: :AJNR. American journal of neuroradiology 2004
Joon K Song Yasunari Niimi Jonathan L Brisman Alejandro Berenstein

We simultaneously injected both internal carotid arteries (ICAs) during 3D rotational digital subtraction angiography in a patient with a ruptured anterior communicating artery (Acom) aneurysm and vasospasm. Shaded surface display (SSD) images from this acquisition provided more anatomic detail than did SSD images created from individual ICA 3D rotational digital subtraction angriography. In th...

Journal: :AJNR. American journal of neuroradiology 2003
Filippo Cademartiri Dragan Stojanov Diederik W J Dippel Aad Van Der Lugt Herve Tanghe

The criterion standard for the detection of intracranial aneurysms is digital subtraction angiography. MR imaging and CT provide good accuracy in the evaluation of brain arteries and aneurysms. We herein report a case of a ruptured aneurysm at a basilar artery fenestration. The diagnosis was assessed with 16-row multisection CT angiography and was confirmed by using digital subtraction angiogra...

2012
Dong-Woo Yu Young-Jin Jung Byung-Yon Choi Chul-Hoon Chang

INTRODUCTION Patients with negative initial digital subtraction angiography (DSA) are at significant risk for re-bleeding, which can lead to severe disability and death. The purpose of this study was to evaluate the necessity of repeat DSA in subgroups of patients with subarachnoid hemorrhage (SAH) with negative initial DSA. METHODS A total of 904 spontaneous SAH patients were admitted to our...

Journal: :The American journal of cardiology 1983
J Tobis O Nalcioglu A Seibert W D Johnston W L Henry

Left ventricular ejection fraction (LVEF) was calculated from 25 first-pass digital subtraction angiograms using a densitometric analysis. Digital subtraction angiograms are obtained in a computerized format; therefore, they can be readily analyzed with computer software to measure the density of the iodine signal within the image. The video signals from the image intensifier were logarithmical...

Journal: :Thorax 1985
K C Flint N M Johnson A Mannhire P Dawson S George P J Ell

Fifty one patients with suspected pulmonary embolus were studied by radionuclide ventilation-perfusion scanning and intravenous digital subtraction pulmonary angiography. In 31 patients the results of both investigations were reported as negative and in a further 11 both results were reported as positive, giving a concordance rate of 82.3%. In nine patients there was disagreement between the tw...

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