Zobrazeno 1 - 10
of 23
pro vyhledávání: '"D. N. Firmin"'
Publikováno v:
Magnetic resonance in medicine. 64(4)
A fully automatic and highly efficient free-breathing navigator gated technique, continuously adaptive windowing strategy (CLAWS), is presented. Using a novel and dynamic acquisition strategy that ensures all potential navigator acceptance windows ar
Publikováno v:
Medical physics. 33(7)
Combined in vitro experiments and numerical simulations were performed to study flow artifacts in phase contrast (PC) velocity mapping of steady flow through an anatomically realistic aortocoronary bypass graft model. The geometry was obtained throug
Publikováno v:
International journal of cardiac imaging. 16(3)
Magnetic resonance (MR) imaging is a versatile technique for providing detailed information on blood vessel morphology and function. With its ability to acquire multi-dimensional cine flow data, MR is also an important tool for providing insight into
Publikováno v:
Journal of magnetic resonance imaging : JMRI. 12(6)
Assessment of myocardial mechanics is an integral part of understanding and predicting heart disease. This review covers the two most common magnetic resonance (MR) methods used to measure myocardial motion: myocardial tagging and myocardial velocity
Publikováno v:
Journal of magnetic resonance imaging : JMRI. 11(4)
Cardiovascular magnetic resonance (CMR) is the reference standard for the assessment of cardiac function. Faster sequences, such as breath-hold (BH) fast low-angle shot, have made CMR more clinically acceptable and cost effective. In a significantly
Publikováno v:
Journal of magnetic resonance imaging : JMRI. 11(4)
A direct comparison of segmented fast low-angle short (FLASH) imaging and interleaved spiral magnetic resonance coronary angiography (MRCA) during free respiration using navigator echo has been performed. MRCA images were acquired in 30 normal subjec
Autor:
J R, Panting, A M, Taylor, P D, Gatehouse, J, Keegan, G Z, Yang, S, McGill, J M, Francis, E D, Burman, D N, Firmin, D J, Pennell
Publikováno v:
Journal of magnetic resonance imaging : JMRI. 10(3)
In this phase I clinical study, the new ultrasmall superparamagnetic iron oxide contrast agent, NC100150 Injection (Nycomed AS, Oslo, Norway, a part of Nycomed Amersham), was assessed for first-pass magnetic resonance myocardial perfusion studies and
Publikováno v:
Journal of magnetic resonance imaging : JMRI. 9(6)
A comparison between three magnetic resonance coronary angiography (MRCA) respiratory motion suppression techniques was performed for both normal subjects and patients with coronary artery disease (CAD). MRCA images were acquired in 17 normal subject
Autor:
P D, Gatehouse, D N, Firmin
Publikováno v:
Magnetic resonance in medicine. 41(5)
The effect of in-plane motion on the point spread function (velocity PSF) in spiral imaging is studied experimentally and derived mathematically and is shown to consist of a smoothed, trailing edge and fringes around the leading edge. The velocity PS
Publikováno v:
Magnetic resonance in medicine. 41(3)
Three-dimensional (3D) coronary imaging has the potential to overcome problems resulting from vessel tortuosity and to reduce partial volume effects. With these techniques, however, acquisition times are long and respiratory motion artifacts problema