نتایج جستجو برای: vessels

تعداد نتایج: 58351  

Journal: :Hellenic journal of cardiology : HJC = Hellenike kardiologike epitheorese 2008
Christophoros Kotoulas Robert Peter Jones Wajdi Turkie Ragheb Hasan

We describe the case of a 27-year-old Caucasian woman with corrected transposition of the great vessels, who presented with cardiac failure. She had severe regurgitation of the systemic tricuspid valve with a huge annulus that was not suitable for annuloplasty. She underwent a successful repair using the Alfieri edge-to-edge technique and was asymptomatic 15 months after surgery. Such a repair ...

Journal: :Circulation research 2002
David E Reese Takashi Mikawa David M Bader

Formation of the coronary vessels is a fundamental event in heart development. Congenital abnormalities in the coronary system can have major deleterious effects on heart function. It is also possible that subtle variation in the patterning of coronary vessels has significant but uncharacterized effects on myocardial structure and function. In addition, generation of the coronary vascular syste...

Journal: :Circulation 1953
J D KEITH C A NEILL P VLAD R D ROWE A L CHUTE

The vast majority of cases of transposition of the great vessels can be diagnosed in the first few weeks of life with electrocardiogram, x-ray and fluoroscope. The clinical pattern and the diagnostic features are described in detail. The degree of cyanosis, the characteristic heart shape and progressive increase in size coupled with generous hilar shadows all suggest this diagnosis. A new sugge...

1998
P Radeva R Toledo

In this paper, we propose a physics-based model to segment and reconstruct coronary vessels from biplane angiograms. We use the snake technique to model the vessel, the snake deforms in space to adjust its projections to the image data. In this way, segmentation and 3 0 reconstruction are unified into the same procedure assuring that only plausible vessel shapes will be detected. The method is ...

Journal: :Cardiovascular Ultrasound 2005
Giorgio Baroldi Riccardo Bigi Lauro Cortigiani

This review article is aimed at comparing the results of histopathological and clinical imaging studies to assess coronary collateral circulation in humans. The role of collaterals, as emerging from morphological studies in both normal and atherosclerotic coronary vessels, is described; in addition, present role and future perpectives of echocardiographic techniques in assessing collateral circ...

ژورنال: مهندسی دریا 2023

Due to the range of hazards threatening the navigation of vessels such as collisions with other passing vessels, collisions with structures such as breakwaters, and collisions with the bottom of vessels with the seabed, the design and use of fixed and floating signs should be considered. These signs, in addition to daytime operation, should also be equipped with portable lights to navigate duri...

Journal: :Journal of magnetic resonance imaging : JMRI 2011
Andrew D Scott Jennifer Keegan David N Firmin

PURPOSE To quantitatively assess the performance and reproducibility of 3D spiral coronary artery wall imaging with beat-to-beat respiratory-motion-correction (B2B-RMC) compared to navigator gated 2D spiral and turbo-spin-echo (TSE) acquisitions. MATERIALS AND METHODS High-resolution (0.7 × 0.7 mm) cross-sectional right coronary wall acquisitions were performed in 10 subjects using four techn...

Journal: :Journal of clinical pathology 1990
M Sundaresan S B Kelly I S Benjamin A B Akosa

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