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Measurement of the linear attenuation coefficients of breast tissues by synchrotron radiation computed tomography

Chen, R. C.
•
LONGO, RENATA
•
RIGON, LUIGI
altro
CASTELLI, EDOARDO
2010
  • journal article

Periodico
PHYSICS IN MEDICINE AND BIOLOGY
Abstract
The measurement of the linear attenuation coefficients of breast tissues is of fundamental importance in the field of breast x-ray diagnostic imaging. Different groups have evaluated the linear attenuation coefficients of breast tissues by carrying out direct attenuation measurements in which the specimens were thin and selected as homogeneous as possible. Here, we use monochromatic and high-intensity synchrotron radiation computed tomography (SR CT) to evaluate the linear attenuation coefficients of surgical breast tissues in the energy range from 15 to 26.5 keV. X-ray detection is performed by a custom digital silicon micro-strip device, developed in the framework of the PICASSO INFN experiment. Twenty-three human surgical breast samples were selected for SR CT and histological study. Six of them underwent CT, both as fresh tissue and after formalin fixation, while the remaining 17 were imaged only as formalin-fixed tissues. Our results for fat and fibrous tissues are in good agreement with the published values. However, in contrast to the published data, our measurements show no significant differences between fibrous and tumor tissues. Moreover, our results for fresh and formalin-fixed tissues demonstrate a reduction of the linear attenuation coefficient for fibrous and tumor tissues after fixation.
DOI
10.1088/0031-9155/55/17/008
WOS
WOS:000280966600008
Archivio
http://hdl.handle.net/11368/2301504
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-78149341017
Diritti
metadata only access
Soggetti
  • Synchrotron radiation...

  • quantitative microtom...

Scopus© citazioni
65
Data di acquisizione
Jun 14, 2022
Vedi dettagli
Web of Science© citazioni
66
Data di acquisizione
Mar 28, 2024
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