Non-invasive multiple cancer screening using trained detection canines and artificial intelligence: a prospective double-blind study

Sci Rep. 2024 Nov 15;14(1):28204. doi: 10.1038/s41598-024-79383-2.

Abstract

The specificity and sensitivity of a simple non-invasive multi-cancer screening method in detecting breast, lung, prostate, and colorectal cancer in breath samples were evaluated in a double-blind study. Breath samples of 1386 participants (59.7% males, median age 56.0 years) who underwent screening for cancer using gold-standard screening methods, or a biopsy for a suspected malignancy were collected. The samples were analyzed using a bio-hybrid platform comprising trained detection canines and artificial intelligence tools. According to cancer screening/biopsy results, 1048 (75.6%) were negative for cancer and 338 (24.4%) were positive. Among the 338 positive samples, 261 (77.2%) were positive for one of the four cancer types that the bio-hybrid platform was trained to detect, with an overall sensitivity and specificity of 93.9% (95% confidence interval [CI] 90.3-96.2%) and 94.3% (95% CI 92.7%-95.5%), respectively. The sensitivity of each cancer type was similar; breast: 95.0% (95% CI 87.8-98.0%), lung: 95.0% (95% CI 87.8-98.0%), colorectal: 90.0% (95% CI 74.4-96.5%), prostate: 93.0% (95% CI 84.6-97.0%). The sensitivity of 14 other malignant tumors that the bio-hybrid platform was not trained to detect, but identified, was 81.8% (95% CI 71.8%-88.8%). Early cancer (0-2) detection sensitivity was 94.8% (95% CI 91.0%-97.1%). This bio-hybrid multi-cancer screening platform demonstrated high sensitivity and specificity and enables early-stage cancer detection.

Keywords: Artificial intelligence; Breast; Cancer screening; Colorectal; Detection canines; Early detection; Lung; Prostate; Volatile organic compounds.

MeSH terms

  • Adult
  • Aged
  • Artificial Intelligence*
  • Breast Neoplasms / diagnosis
  • Colorectal Neoplasms / diagnosis
  • Dogs
  • Double-Blind Method
  • Early Detection of Cancer* / methods
  • Female
  • Humans
  • Lung Neoplasms / diagnosis
  • Male
  • Middle Aged
  • Neoplasms / diagnosis
  • Prospective Studies
  • Prostatic Neoplasms / diagnosis
  • Sensitivity and Specificity