Hans W. Persson

Contact information: (2008)

Magnus Cinthio, Åsa Rydén Ahlgren, Jonas Bergkvist, Tomas Jansson, Hans W Persson, Kjell Lindström, ...

Longitudinal movements of the arterial wall – Cinthio et al. The longitudinal movement of the arterial wall has gained little interest. It has been assumed that this movement is negligible compared...

Can pulsed ultrasound increase tissue damage during ischemia? A study of the effects of ultrasound on infarcted and non-infarcted myocardium in anesthetized pigs (2005)

Olivecrona, Göran K, Härdig, Bjarne, Roijer, Anders, Block, Mattias, Grins, Edgars, Persson, Hans W, ...

Abstract Background The same mechanisms by which ultrasound enhances thrombolysis are described in connection with non-beneficial effects of ultrasound. The present safety study was therefore...

A new non-invasive ultrasonic method for simultaneous measurements of longitudinal and radial arterial wall movements: first in vivo trial. (2003)

Persson, Magnus, Rydén Ahlgren, Asa, Jansson, Tomas, Eriksson, Anders, Persson, Hans W, Lindström, Kjell

During recent years, the radial movement of the arterial wall has been extensively studied, and measurements of the radial movement are now an important tool in cardiovascular research for...

Movement artefact suppression in blood perfusion measurements using a multifrequency technique. (2002)

Jansson, Tomas, Persson, Hans W, Lindström, Kjell

The standard way of suppressing movement artefacts in Doppler measurements is by means of a high-pass filter. This is because artefacts usually are of high amplitude, but have low frequencies. The...

Frequency dependence of speckle in continuous-wave ultrasound with implications for blood perfusion measurements. (2002)

Jansson, Tomas, Jurkonis, Rytis, Mast, T Douglas, Persson, Hans W, Lindström, Kjell

Speckle in continuous wave (CW) Doppler has previously been found to cause large variations in detected Doppler power in blood perfusion measurements, where a large number of blood vessels are...

Ultrasound Doppler Measurements of Blood Flows using Tomographic Methods (1996)

Kent Stråhlén, Gunnar Sparr, Monica Almqvist, Hans W. Persson

In this paper we study if it is possible to regain information about a vector field from projections, in the same way as is possible for scalar functions in ordinary tomography. It turns out that the...

Doppler Tomography for Vector Fields (1995)

Kjell Lindström, Hans W. Persson

The problem considered is to reconstruct a vector field in the case when for each line the distribution of the vector field components along the line is known. Such data are obtained from spectral...