A data-driven ultrasound approach discriminates pathological high grade prostate cancer.

Journal: Scientific reports
Published Date:

Abstract

Accurate prostate cancer screening is imperative for reducing the risk of cancer death. Ultrasound imaging, although easy, tends to have low resolution and high inter-observer variability. Here, we show that our integrated machine learning approach enabled the detection of pathological high-grade cancer by the ultrasound procedure. Our study included 772 consecutive patients and 2899 prostate ultrasound images obtained at the Nippon Medical School Hospital. We applied machine learning analyses using ultrasound imaging data and clinical data to detect high-grade prostate cancer. The area under the curve (AUC) using clinical data was 0.691. On the other hand, the AUC when using clinical data and ultrasound imaging data was 0.835 (p = 0.007). Our data-driven ultrasound approach offers an efficient tool to triage patients with high-grade prostate cancers and expands the possibility of ultrasound imaging for the prostate cancer detection pathway.

Authors

  • Jun Akatsuka
    Pathology Informatics Team, RIKEN Center for Advanced Intelligence Project, Tokyo 103-0027, Japan. jun.akatsuka@riken.jp.
  • Yasushi Numata
    Pathology Informatics Team, RIKEN Center for Advanced Intelligence Project, Tokyo 103-0027, Japan. yasushi.numata@riken.jp.
  • Hiromu Morikawa
    Pathology Informatics Team, RIKEN Center for Advanced Intelligence Project, Tokyo 103-0027, Japan. hiromu.morikawa@riken.jp.
  • Tetsuro Sekine
    Department of Radiology, Nippon Medical School Hospital, Tokyo 113-8603, Japan. netti@nms.ac.jp.
  • Shigenori Kayama
    Department of Urology, Nippon Medical School Hospital, Tokyo, 113-8603, Japan.
  • Hikaru Mikami
    Department of Urology, Nippon Medical School, Tokyo, Japan.
  • Masato Yanagi
    Department of Urology, Nippon Medical School Hospital, Tokyo 113-8603, Japan. area-i@nms.ac.jp.
  • Yuki Endo
    Department of Urology, Nippon Medical School Hospital, Tokyo 113-8603, Japan. y-endo1@nms.ac.jp.
  • Hayato Takeda
    Department of Urology, Nippon Medical School Hospital, Tokyo 113-8603, Japan. s8053@nms.ac.jp.
  • Yuka Toyama
    Department of Urology, Nippon Medical School, Tokyo, Japan.
  • Ruri Yamaguchi
    Pathology Informatics Team, RIKEN Center for Advanced Intelligence Project, Tokyo, 103-0027, Japan.
  • Go Kimura
    Department of Urology, Nippon Medical School Hospital, Tokyo 113-8603, Japan. gokimura@nms.ac.jp.
  • Yukihiro Kondo
    Department of Urology, Nippon Medical School Hospital, Tokyo 113-8603, Japan. kondoy@nms.ac.jp.
  • Yoichiro Yamamoto
    Department of Pathology, Shinshu University School of Medicine, Nagano, Japan.