Publications by authors named "Maurizio Patrignani"

2 Publications

  • Page 1 of 1

We-Measure: Toward a low-cost portable posturography for patients with multiple sclerosis using the commercial Wii balance board.

J Neurol Sci 2015 Dec 14;359(1-2):440-4. Epub 2015 Oct 14.

Department of Neurology and Psychiatry, Sapienza University, Rome, Italy. Electronic address:

This study was aimed at investigating whether postural sway measures derived from a standard force platform were similar to those generated by a custom-written software ("We-Measure") acquiring and processing data from a commercial Nintendo balance board (BB). For this purpose, 90 patients with multiple sclerosis (MS) and 50 healthy controls (HC) were tested in a single-day session with a reference standard force platform and a BB-based system. Despite its acceptable between-device agreement (tested by visual evaluation of Bland-Altman plot), the low-cost BB-based system tended to overestimate postural sway when compared to the reference standard force platform in both MS and HC groups (on average +30% and +54%, respectively). Between-device reliability was just adequate (MS: 66%, HC: 47%), while test-retest reliability was excellent (MS: 84%, HC: 88%). Concurrent validity evaluation showed similar performance between the reference standard force platform and the BB-based system in discriminating fallers and non-fallers among patients with MS. All these findings may encourage the use of this balance board-based new device in longitudinal study, rather than in cross-sectional design, thus providing a potential useful tool for multicenter settings.
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http://dx.doi.org/10.1016/j.jns.2015.10.016DOI Listing
December 2015

Topographic visualization of prefix propagation in the internet.

IEEE Trans Vis Comput Graph 2006 Sep-Oct;12(5):725-32

Roma Tre University, Dipartimento di Informatica e Automazione, Rome, Italy.

We propose a new metaphor for the visualization of prefixes propagation in the Internet. Such a metaphor is based on the concept of topographic map and allows to put in evidence the relative importance of the Internet Service Providers (ISPs) involved in the routing of the prefix. Based on the new metaphor we propose an algorithm for computing layouts and experiment with such algorithm on a test suite taken from the real Internet. The paper extends the visualization approach of the BGPlay service, which is an Internet routing monitoring tool widely used by ISP operators.
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http://dx.doi.org/10.1109/TVCG.2006.185DOI Listing
January 2007