نتایج جستجو برای: coronary angiographies
تعداد نتایج: 194613 فیلتر نتایج به سال:
A contrast enhanced computed tomography (CT) scan showed a pseudoaneurysm arising from the inferior wall of the LV (Fig. 2). The patient underwent urgent surgical repair of the aneurysm by Dor procedure (Fig. 3), but unfortunately he died during surgery. Left ventricular pseudoaneurysm (LVP) results from a cardiacfree wall rupture contained by adherent pericardium or scar tissue without any myo...
Background: Since 1987, a nationwide survey of percutaneous cardiac interventions is performed annually in Switzerland, which allows recognition of contemporary trends and comparison with other countries. Methods: Volume and type of procedures performed during the year 2006 were collected by means of a standardised questionnaire from all adult percutaneous cardiac intervention centres in Switze...
BACKGROUND The myocardial bridge constitutes one of the main differential diagnoses of coronary artery disease. However, it remains an underdiagnosed condition and its physiopathological mechanisms and therapeutics are yet to be elucidated. OBJECTIVE To analyze and describe the clinical and therapeutic evolution of patients with an angiographic diagnosis of myocardial bridge, comparing the da...
This paper describes a new method to detect the retina vascular tree. This detection is performed by a deformable contour model in angiographic retinal images. The generic deformable contour model is here redefined to obtain a more accurate segmentation by considering specific features of these vascular structures, mainly the anatomical landmarks that a crease extraction technique obtains. Resu...
This paper is concerned with the automatic detection of the avascular foveal zone (fovea), in eye fundus angiographies. Fluorescein angiography is used in ophthalmic practice to evaluate vascular retinopathies and choroidopathies: sodium ̄uorescein is injected in the arm's cubital vein of the patient and its distribution along retinal vessels at certain times is observed. The proposed methodolo...
BACKGROUND AND PURPOSE During the last years, Post Mortem Computed Tomography (PMCT) has become an integral part of the autopsy. PMCT-angiography may augment PMCT. Both exams have proven their value in visualizing complications after heart surgery. Therefore, they should also show complications after transvascular interventions. This assumption initiated our project: to evaluate the possibiliti...
Arterial access-site complications after use of a vascular closure device related to puncture height
BACKGROUND To analyze differences of access-site complications related to the height of femoral arterial puncture and the use of a vascular closure device (VCD) following percutaneous coronary intervention (PCI). METHODS A subgroup of the FERARI study being treated by femoral arterial access and valuable inguinal angiography before implantation of a VCD were included. Inguinal angiographies w...
BACKGROUND Cardiac dual-source computed tomography (DSCT) is primarily used for coronary arteries. There are limited studies about the application of DSCT for congenital heart diseases. The aim of this study was to determine the diagnostic value of DSCT in the cardiac anomalies. MATERIAL/METHODS The images of DSCTs and conventional angiographies of 36 patients (21 male; mean age: 8.5 month) w...
OBJECTIVES Our goal was to validate an educational 90-min minicourse in lower-irradiating cardiac invasive techniques. BACKGROUND Despite comprehensive radiation safety programs, patient radiation exposure in invasive cardiology remains considerable. METHODS Before and at a median period of 3.7 months after the minicourse at 32 German cardiac centers, 177 interventionalists consistently doc...
We describe a technique for recording electroencephalographic and evoked-potential information directly from the cerebral hemispheres and brain stem, via an endovascular approach. Recordings were performed with polytef-insulated guide wires in the course of interventional angiographies in 23 patients. All registrations were compared with simultaneous recordings from extracranial electrodes. Thi...
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