Dr. Sabina Strocchi Profile

Dr. Sabina Strocchi

at Ospedale di Circolo e Fondazione Macchi Varese

SPIE Involvement:

Author

Publications (6)

Proceedings Article | 22 March 2016 Paper

Quantitative evaluation of susceptibility effects caused by dental materials in head magnetic resonance imaging

S. Strocchi, M. Ghielmi, F. Basilico, A. Macchi, R. Novario, R. Ferretti, E. Binaghi

Proceedings Volume 9783, 978357 (2016) https://doi.org/10.1117/12.2206083

KEYWORDS: Magnetic resonance imaging, Head, Image quality, Zirconium dioxide, Dental materials, Image registration, Magnetism, Diffusion, Image processing, Tissues

Read Abstract +

Proceedings Article | 16 March 2011 Paper

fMRI analysis software tools: an evaluation framework

Valentina Pedoia, Vittoria Colli, Sabina Strocchi, Cristina Vite, Elisabetta Binaghi, Leopoldo Conte

Proceedings Volume 7965, 796528 (2011) https://doi.org/10.1117/12.877067

KEYWORDS: Scanning probe microscopy, Functional magnetic resonance imaging, Statistical analysis, Brain, Information operations, Inspection, Nomenclature, Image segmentation, Magnetic resonance imaging, Algorithm development

Read Abstract +

Proceedings Article | 14 March 2009 Paper

Computed tomography quality indexes: evaluation experience

Sabina Strocchi, Cristina Vite, Raffaele Novario, Marco Cacciatori, Giovanna Frigerio, Leopoldo Conte

Proceedings Volume 7258, 72584T (2009) https://doi.org/10.1117/12.811501

KEYWORDS: Abdomen, Head, Image quality, Computed tomography, Image processing, Modulation transfer functions, Modulation, Image analysis, Computing systems, Image acquisition

Read Abstract +

Proceedings Article | 13 March 2009 Paper

Digital breast tomosynthesis (DBT) versus full field digital mammography (FFDM): comparison of a system performance using a contrast detail phantom

A. Nitrosi, G. Borasi, M. Bertolini, A. Botti, D. Tassoni, S. Strocchi

Proceedings Volume 7258, 725831 (2009) https://doi.org/10.1117/12.811026

KEYWORDS: Digital breast tomosynthesis, Digital mammography, Signal to noise ratio, Breast, Sensors, Image analysis, Interference (communication), Cancer, Oncology, Image quality

Read Abstract +

Proceedings Article | 16 March 2007 Paper

Dedicated dental volumetric and total body multislice computed tomography: a comparison of image quality and radiation dose

Sabina Strocchi, Vittoria Colli, Raffaele Novario, Gianpaolo Carrafiello, Andrea Giorgianni, Aldo Macchi, Carlo Fugazzola, Leopoldo Conte

Proceedings Volume 6510, 65102I (2007) https://doi.org/10.1117/12.708431

KEYWORDS: Computed tomography, Signal to noise ratio, Image quality, Image quality standards, X-ray computed tomography, Head, Bone, Lenses, Tissues, Diagnostics

Read Abstract +

Proceedings Article | 3 March 2006 Paper

Dosimetric and image quality assessment of different acquisition protocols of a novel 64-slice CT scanner

Cristina Vite, Monica Mangini, Sabina Strocchi, Raffaele Novario, Fabio Tanzi, Gianpaolo Carrafiello, Leopoldo Conte, Carlo Fugazzola

Proceedings Volume 6142, 61423G (2006) https://doi.org/10.1117/12.650618

KEYWORDS: Computed tomography, Scanners, Image quality, Abdomen, Digital Light Processing, Image quality standards, X-ray computed tomography, Head, Chest, Diagnostics

Read Abstract +

Dose and image quality assessment in computed tomography (CT) are almost affected by the vast variety of CT scanners (axial CT, spiral CT, low-multislice CT (2-16), high-multislice CT (32-64)) and imaging protocols in use. Very poor information is at the moment available on 64 slices CT scanners. Aim of this work is to assess image quality related to patient dose indexes and to investigate the achievable dose reduction for a commercially available 64 slices CT scanner. CT dose indexes (weighted computed tomography dose index, CTDI_w and Dose Length Product, DLP) were measured with a standard CT phantom for the main protocols in use (head, chest, abdomen and pelvis) and compared with the values displayed by the scanner itself. The differences were always below 7%. All the indexes were below the Diagnostic Reference Levels defined by the European Council Directive 97/42. Effective doses were measured for each protocol with thermoluminescent dosimeters inserted in an anthropomorphic Alderson Rando phantom and compared with the same values computed by the ImPACT CT Patient Dosimetry Calculator software code and corrected by a factor taking in account the number of slices (from 16 to 64). The differences were always below 25%. The effective doses range from 1.5 mSv (head) to 21.8 mSv (abdomen). The dose reduction system of the scanner was assessed comparing the effective dose measured for a standard phantom-man (a cylinder phantom, 32 cm in diameter) to the mean dose evaluated on 46 patients. The standard phantom was considered as no dose reduction reference. The dose reduction factor range from 16% to 78% (mean of 46%) for all protocols, from 29% to 78% (mean of 55%) for chest protocol, from 16% to 76% (mean of 42%) for abdomen protocol. The possibility of a further dose reduction was investigated measuring image quality (spatial resolution, contrast and noise) as a function of CTDI_w. This curve shows a quite flat trend decreasing the dose approximately to 90% and a sharp fall below that value. A significant decrease in the effective dose to the patient, around 40%, was found; image quality analysis shows a further 10% dose reduction possibility.

Showing 5 of 6 publications

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Keywords/Phrases

Search In:

Publication Years