Needle-based optical coherence tomography for the detection of prostate cancer: A visual and quantitative analysis in 20 patients

Berrend G. Muller, Rob A. A. van Kollenburg, Abel Swaan, Evita C. H. Zwartkruis, Martin J. Brandt, Leah S. Wilk, Mitra Almasian, A. Wim Schreurs, D. Irk J. Faber, L. Rence Rozendaal, Andre N. Vis, Jakko A. Nieuwenhuijzen, Jeroen R. J. A. van Moorselaar, Jean J. M. C. H. de la Rosette, Daniel Martijn de Bruin, Ton G. van Leeuwen

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Diagnostic accuracy of needle-based optical coherence tomography (OCT) for prostate cancer detection by visual and quantitative analysis is defined. 106 three-dimensional (3-D)-OCT data sets were acquired in 20 prostates after radical prostatectomy and precisely matched with pathology. OCT images were grouped per histological category. Two reviewers performed blind assessments of the OCT images. Sensitivity and specificity for malignancy detection were calculated. Quantitative analyses by automated optical attenuation coefficient calculation were performed. OCT can reliably differentiate between fat, cystic, and regular atrophy and benign glands. The overall sensitivity and specificity for malignancy detection was 79% and 88% for reviewer 1 and 88% and 81% for reviewer 2. Quantitative analysis for differentiation between stroma and malignancy showed a significant difference (4.6mm -1 versus 5.0mm -1 Mann-Whitney U-test p<0.0001). A Kruskal-Wallis test showed a significant difference in median attenuation coefficient between stroma, inflammation, Gleason 3, and Gleason 4 (4.6, 4.1, 5.9, and 5.0mm -1, respectively). However, attenuation coefficient varied per patient and a related-samples Wilcoxon signed-rank test showed no significant difference per patient (p=0.17). This study confirmed the one to one correlation of histopathology and OCT. Precise matching showed that most histological tissues categories in the prostate could be distinguished by their unique pattern in OCT images. In addition, the optical attenuation coefficient can play a role in the differentiation between stroma and malignancy; however, a per patient analysis of the optical attenuation coefficient did not show a significant difference.
Original languageEnglish
Article number086001
JournalJournal of Biomedical Optics
Issue number8
Publication statusPublished - 2018

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