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- Dale, S, et al.
(författare)
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A mobile tomographic gamma camera system for acute studies
- 1997
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Ingår i: IEEE TRANSACTIONS ON NUCLEAR SCIENCE. - : Institute of Electrical and Electronics Engineers (IEEE). - 0018-9499 .- 1558-1578. ; 44:2, s. 199-203
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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- Gustafsson, Ulf, 1976-, et al.
(författare)
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The rotation axis of the left ventricle : a new concept derived from ultrasound data in healthy individuals
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- Introduction: The axis around which the left ventricle (LV) rotates has never previously been described. The aim was to develop a method to calculate the spatial motion of the rotation axis throughout the cardiac cycle. Method: By constructing a model of the LV, based on dimensions and rotation values at the basal, mid ventricular and apical levels, a rotation axis could be calculated at each level in 39 healthy subjects. The transition plane, defined as the level without rotation, where basal and apical rotation meet was also calculated. Results: The rotation axis was not congruent to the longitudinal axis of the LV at any time point. A significant and specific mean direction for each of the rotation axes for the majority of the tested time points displayed a physiological pattern. Conclusion: This new method introduces a new concept in cardiac function and provides further insight into the complexity of LV mechanics.
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