Abstract

This paper reports investigations led on the combination of the refractive index and morphological dilation to enhance performances towards breast tumour margin delineation during conserving surgeries. The refractive index map of invasive ductal and lobular carcinomas were constructed from an inverse electromagnetic problem. Morphological dilation combined with refractive index thresholding was conducted to classify the tissue regions as malignant or benign. A histology routine was conducted to evaluate the performances of various dilation geometries associated with different thresholds. It was found that the combination of a wide structuring element and high refractive index was improving the correctness of tissue classification in comparison to other configurations or without dilation. The method reports a sensitivity of around 80% and a specificity of 82% for the best case. These results indicate that combining the fundamental optical properties of tissues denoted by their refractive index with morphological dilation may open routes to define supporting procedures during breast-conserving surgeries.

Details

Title
Terahertz refractive index-based morphological dilation for breast carcinoma delineation
Author
Cassar Quentin 1 ; Caravera Samuel 2 ; MacGrogan Gaëtan 2 ; Bücher, Thomas 3 ; Hillger Philipp 3 ; Pfeiffer, Ullrich 3 ; Zimmer, Thomas 1 ; Guillet Jean-Paul 1 ; Mounaix, Patrick 1 

 University of Bordeaux, Integration from Material to Systems Laboratory, Talence, France (GRID:grid.412041.2) (ISNI:0000 0001 2106 639X) 
 Bergonié Institute, Department of Pathology, Bordeaux, France (GRID:grid.476460.7) (ISNI:0000 0004 0639 0505) 
 University of Wuppertal, Institute for High-Frequency and Communication Technology, Wuppertal, Germany (GRID:grid.7787.f) (ISNI:0000 0001 2364 5811) 
Publication year
2021
Publication date
2021
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2503046687
Copyright
© The Author(s) 2021. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.