منابع مشابه
Comparison of Aortic Annulus Diameter Measurement between Multi-Detector Computed Tomography and Echocardiography: A Meta-Analysis
BACKGROUND AND PURPOSE Accurate measurement of aortic annulus diameter is crucial for choosing suitable prosthetic size for transcatheter aortic valve implantation (TAVI). Several imaging methods are available for the measurement, but significant variability between different modalities has been observed. The purpose of this study was to systematically compare the measurements of aortic annulus...
متن کاملMeasurement of the Aortic Diameter in Plain Axial Cardiac Cine MRI
We address the task of aortic diameter measurement in (noncontrast-enhanced) plain axial cardiac cine MRI. To this end, we set up a likelihood maximization problem which allows us to recover globally optimal aorta locations and diameters of the cine sequence efficiently. Our approach provides intuitive means of manual post-correction and requires little user interaction, making large-scale imag...
متن کاملUltrasonographic measurement of aortic diameter by emergency physicians approximates results obtained by computed tomography.
To assess agreement between emergency physicians' measurements of abdominal aortic diameter using ultrasound in the Emergency Department (ED) and measurements obtained by computed tomography (CT), a double-blinded, prospective study was conducted. The study enrolled a convenience sample of patients over 50 years of age presenting to the ED and scheduled to undergo CT scan of the abdomen and pel...
متن کاملAutomatic measurement of aortic annulus diameter in 3-dimensional Transoesophageal echocardiography
BACKGROUND Transcatheter aortic valve implantation involves percutaneously implanting a biomechanical aortic valve to treat severe aortic stenosis. In order to select a proper device, precise sizing of the aortic valve annulus must be completed. METHODS In this paper, we describe a fully automatic segmentation method to measure the aortic annulus diameter in patients with aortic calcification...
متن کاملMeasurement of Aortic Regurgitation
ALTHOUGH many techniques1-12 have been proposed or utilized for the semiquantitative or quantitative assessment of aortic regurgitation, the most direct approach involves measurement of the regurgitant flow by the recording of indicator concentrations from the left ventricle following injection into the aortic root. This method is theoretically valid13 and had been applied to aortic regurgitati...
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ژورنال
عنوان ژورنال: The Journal of Thoracic and Cardiovascular Surgery
سال: 1997
ISSN: 0022-5223
DOI: 10.1016/s0022-5223(97)70136-3