Computational analysis of MRIs predicts osteosarcoma chemoresponsiveness.

Autor: Djuričić GJ; Department of Radiology, University Children's Hospital, School of Medicine, University of Belgrade, Belgrade, 11000, Serbia., Rajković N; Department of Biophysics, School of Medicine, University of Belgrade, Belgrade, 11000, Serbia., Milošević N; Department of Biophysics, School of Medicine, University of Belgrade, Belgrade, 11000, Serbia., Sopta JP; Institute of Pathology, School of Medicine, University of Belgrade, Belgrade, 11000, Serbia., Borić I; St. Catherine Specialty Hospital, Zagreb, 10000, Croatia., Dučić S; Department of Radiology, University Children's Hospital, School of Medicine, University of Belgrade, Belgrade, 11000, Serbia., Apostolović M; Department of Orthopaedic, Institute for Orthopaedic Surgery, 'Banjica', Belgrade, 11040, Serbia., Radulovic M; Department of Experimental Oncology, Institute for Oncology & Radiology of Serbia, Belgrade, 11000, Serbia.
Jazyk: angličtina
Zdroj: Biomarkers in medicine [Biomark Med] 2021 Aug; Vol. 15 (12), pp. 929-940. Date of Electronic Publication: 2021 Jul 08.
DOI: 10.2217/bmm-2020-0876
Abstrakt: Aim: This study aimed to improve osteosarcoma chemoresponsiveness prediction by optimization of computational analysis of MRIs. Patients & methods: Our retrospective predictive model involved osteosarcoma patients with MRI scans performed before OsteoSa MAP neoadjuvant cytotoxic chemotherapy. Results: We found that several monofractal and multifractal algorithms were able to classify tumors according to their chemoresponsiveness. The predictive clues were defined as morphological complexity, homogeneity and fractality. The monofractal feature CV for Λ'(G) provided the best predictive association (area under the ROC curve = 0.88; p <0.001), followed by   Y-axis intersection of the regression line  for  box fractal dimension, r²  for  FD M and tumor circularity. Conclusion: This is the first full-scale study to indicate that computational analysis of pretreatment MRIs could provide imaging biomarkers for the classification of osteosarcoma according to their chemoresponsiveness.
Databáze: MEDLINE