نتایج جستجو برای: computed tomographic angiography

تعداد نتایج: 250921  

2016
Harvey S. Hecht Jagat Narula William F. Fearon

Background: Invasive Fractional Flow Reserve Obstructive coronary artery disease (CAD) produces symptoms and increases the risk of adverse cardiac outcomes. However, determining whether a particular coronary stenosis is responsible for causing myocardial ischemia can be challenging, even with invasive coronary angiography (ICA). To help guide decisions in the cardiac catheterization laboratory,...

Journal: :Annals of neurology 2011
Jan Menke Jörg Larsen Kai Kallenberg

OBJECTIVE Cerebral aneurysms can cause substantial morbidity and mortality, specifically if they rupture, leading to nontraumatic subarachnoid hemorrhage (SAH). This meta-analysis summarizes evidence about the accuracy of noninvasive computed tomographic (CT) angiography for diagnosing intracranial aneurysms in symptomatic patients. METHODS Four databases including PubMed were searched withou...

2017
Daniel Clerc Fabian Grass Markus Schäfer Alban Denys Nicolas Demartines Martin Hübner

BACKGROUND Lower endoscopy (LE) is the standard diagnostic modality for lower gastrointestinal bleeding (LGIB). Conversely, computed tomographic angiography (CTA) offers an immediate non-invasive diagnosis visualizing the entire gastrointestinal tract. The aim of this study was to compare these 2 modalities with regards to diagnostic value and bleeding control. METHODS Tertiary center retrosp...

Journal: :European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery 2007
Sophie P Toya Marouso Douskou Periklis Tomos George E Tzelepis

A 58-year-old man presented with persistent lung mass (Fig. 1). Pulmonary sequestration was diagnosed with multidetector CT angiography (MDCT) (Fig. 2). Advantages of MDCT over conventional angiography include its non-invasive nature, improved resolution and delineation of vasculature, 3D renderings, shorter acquisition time, and less exposure to radiation. Fig. 1. Computed tomography of the ch...

Journal: :Clinical radiology 2010
C A Roobottom G Mitchell G Morgan-Hughes

Ionizing radiation has long been known to increase the risk of cancer. X-rays and γ-rays are officially classified as a carcinogen by the World Health Organization's International Agency for Research on Cancer.(1) Of the 5 billion imaging investigations performed worldwide two-thirds employ ionizing radiation.(2) Diagnostic x-rays are the largest man-made source of radiation exposure to the gen...

2007
Robert M. Friedlander

Copyright © 2007 Massachusetts Medical Society. A 51-year-old woman presents with a generalized tonic–clonic seizure. After a brief postictal period, she recovers fully and does not report headache or other neurologic symptoms. She takes no medications and her medical history is unremarkable. Computed tomography of the head suggests a right occipital arteriovenous malformation, without evidence...

Journal: :archives of cardiovascular imaging 0
konstantinos spanos department of vascular surgery, university hospital of larissa, faculty of medicine, school of health sciences, university of thessaly, larissa, greece; department of vascular surgery, university hospital of larissa, faculty of medicine, school of health sciences, university of thessaly, larissa, greece. tel: +30-6948570321, fax: +30-2413501739 christos karathanos department of vascular surgery, university hospital of larissa, faculty of medicine, school of health sciences, university of thessaly, larissa, greece george kouvelos department of vascular surgery, university hospital of larissa, faculty of medicine, school of health sciences, university of thessaly, larissa, greece athanasios athanasoulas department of vascular surgery, university hospital of larissa, faculty of medicine, school of health sciences, university of thessaly, larissa, greece aikaterini drakou department of vascular surgery, university hospital of larissa, faculty of medicine, school of health sciences, university of thessaly, larissa, greece athanasios d giannoukas department of vascular surgery, university hospital of larissa, faculty of medicine, school of health sciences, university of thessaly, larissa, greece

conclusions invasive treatment of dialysis patients for cvc related complications is effective and durable during mid-term follow up with no re-intervention, clinical episode of vte or death. cta is a reliable mean for the diagnosis of cvc related complications. methods this is a retrospective analysis of prospectively collected data of dialysis patients treated for cvc-related complications an...

Journal: :Proceedings 2013
Kelly S McMaster Jean-Michael B Blanc Baron L Hamman Robert L Rosenthal

The origins of the branches of the subclavian artery are known to be variable. We present the case of a 55-year-old man whose coronary artery bypass surgery necessitated the use of the internal thoracic artery as he lacked other suitable venous conduits. The left internal thoracic artery appeared to be absent on subselective subclavian angiography. Computed tomographic angiography revealed a pr...

2011
Sami Hammas Aude Amato Nicolas Amabile David Pesenti-Rossi Christophe Caussin

The introduction of multislice computed tomography angiography (MSCT) has provided new information for percutaneous coronary intervention (PCI), especially in complex lesions. It provides valuable adjustments about coronary lesions, which are predictors of procedural success, for example, in chronic total occlusions, in bifurcations and recently in aorto-ostial lesion PCI. In multiple fields, t...

Journal: :The New England journal of medicine 2017
Robert A Solomon E Sander Connolly

Copyright © 2007 Massachusetts Medical Society. A 51-year-old woman presents with a generalized tonic–clonic seizure. After a brief postictal period, she recovers fully and does not report headache or other neurologic symptoms. She takes no medications and her medical history is unremarkable. Computed tomography of the head suggests a right occipital arteriovenous malformation, without evidence...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید