Bladder Cancer Treatment Response Assessment in CT using Radiomics with Deep-Learning

Sci Rep. 2017 Aug 18;7(1):8738. doi: 10.1038/s41598-017-09315-w.

Abstract

Cross-sectional X-ray imaging has become the standard for staging most solid organ malignancies. However, for some malignancies such as urinary bladder cancer, the ability to accurately assess local extent of the disease and understand response to systemic chemotherapy is limited with current imaging approaches. In this study, we explored the feasibility that radiomics-based predictive models using pre- and post-treatment computed tomography (CT) images might be able to distinguish between bladder cancers with and without complete chemotherapy responses. We assessed three unique radiomics-based predictive models, each of which employed different fundamental design principles ranging from a pattern recognition method via deep-learning convolution neural network (DL-CNN), to a more deterministic radiomics feature-based approach and then a bridging method between the two, utilizing a system which extracts radiomics features from the image patterns. Our study indicates that the computerized assessment using radiomics information from the pre- and post-treatment CT of bladder cancer patients has the potential to assist in assessment of treatment response.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Deep Learning*
  • Female
  • Humans
  • Image Processing, Computer-Assisted
  • Male
  • Medical Informatics / methods*
  • Middle Aged
  • ROC Curve
  • Tomography, X-Ray Computed*
  • Treatment Outcome
  • Urinary Bladder Neoplasms / diagnosis*
  • Urinary Bladder Neoplasms / therapy*