In recent years several ultrasound (US) scanners for medical diagnosis was presented and spe-cific methods for ultrasounds images quality evaluation was developed to verify the apparatuses perfor-mances. The proposed methods still depend on subjective evaluation, performed by expert operators, of im-ages produced by dedicated test objects (US phantoms). Distance accuracy is usually evaluated on screen by means of device settings adjustment and use of electronic caliper implemented in the scanner, both set by the operator, and with methods not standardized; therefore results are dependent on adopted procedure. In present work, an automatic accuracy evaluation method for distance measurement by medical US scanners is developed. It adopts Point Spread Functions phantoms as reference and allows accuracy evaluations in vertical and horizontal distance measurements. Analysis is performed on uncompressed two-dimensional images produced by the scanner, with a least squares estimation on results. An index for global distance measurement accuracy is proposed.

Automatic accuracy evaluation for distance measurement by medical ultrasound scanners / Branca, F. P.; D'Orazio, A.; Sciuto, S. A.; Scorza, A.. - STAMPA. - 1:(2007), pp. 191-195. (Intervento presentato al convegno VIPIMAGE 2007 - 1st ECCOMAS Thematic Conference on Computational Vision and Medical Image Processing tenutosi a PORTO nel 17-19 october).

Automatic accuracy evaluation for distance measurement by medical ultrasound scanners

F. P. BRANCA;A. D'ORAZIO;
2007

Abstract

In recent years several ultrasound (US) scanners for medical diagnosis was presented and spe-cific methods for ultrasounds images quality evaluation was developed to verify the apparatuses perfor-mances. The proposed methods still depend on subjective evaluation, performed by expert operators, of im-ages produced by dedicated test objects (US phantoms). Distance accuracy is usually evaluated on screen by means of device settings adjustment and use of electronic caliper implemented in the scanner, both set by the operator, and with methods not standardized; therefore results are dependent on adopted procedure. In present work, an automatic accuracy evaluation method for distance measurement by medical US scanners is developed. It adopts Point Spread Functions phantoms as reference and allows accuracy evaluations in vertical and horizontal distance measurements. Analysis is performed on uncompressed two-dimensional images produced by the scanner, with a least squares estimation on results. An index for global distance measurement accuracy is proposed.
2007
VIPIMAGE 2007 - 1st ECCOMAS Thematic Conference on Computational Vision and Medical Image Processing
ultrasounds images; echografic imaging; US phantoms; distance measurement; Point Spread Functions; accuracy evaluations
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
Automatic accuracy evaluation for distance measurement by medical ultrasound scanners / Branca, F. P.; D'Orazio, A.; Sciuto, S. A.; Scorza, A.. - STAMPA. - 1:(2007), pp. 191-195. (Intervento presentato al convegno VIPIMAGE 2007 - 1st ECCOMAS Thematic Conference on Computational Vision and Medical Image Processing tenutosi a PORTO nel 17-19 october).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/56171
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