title: Image Segmentation and Machine Learning for Detection of Abdominal Free Fluid in Focused Assessment With Sonography for Trauma Examinations: A Pilot Study.
abstract: The objective of this pilot study was to test the feasibility of automating the detection of abdominal free fluid in focused assessment with sonography for trauma (FAST) examinations. Perihepatic views from 10 FAST examinations with positive results and 10 FAST examinations with negative results were used. The sensitivity and specificity compared to manual classification by trained physicians was evaluated. The sensitivity and specificity (95% confidence interval) were 100% (69.2%-100%) and 90.0% (55.5%-99.8%), respectively. These findings suggest that computerized detection of free fluid on abdominal ultrasound images may be sensitive and specific enough to aid clinicians in their interpretation of a FAST examination.
authors.affiliation: Boston Medical Center, Boston, Massachusetts USA.
authors.forename: Anna R
authors.initials: AR
authors.lastname: Sjogren
authors.affiliation: Boston Medical Center, Boston, Massachusetts USA.|Boston University School of Medicine, Boston, Massachusetts USA.
authors.forename: Megan M
authors.initials: MM
authors.lastname: Leo
authors.affiliation: Boston Medical Center, Boston, Massachusetts USA.|Boston University School of Medicine, Boston, Massachusetts USA.
authors.forename: James
authors.initials: J
authors.lastname: Feldman
authors.affiliation: BioSensics LLC, Cambridge, Massachusetts USA.
authors.forename: Joseph T
authors.initials: JT
authors.lastname: Gwin
mesh_terms: D000005:Abdomen / Q000000981:diagnostic imaging; D000007:Abdominal Injuries / Q000000981:diagnostic imaging*; D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001826:Body Fluids / Q000000981:diagnostic imaging*; D005240:Feasibility Studies; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D000069550:Machine Learning; D008297:Male; D008875:Middle Aged; D010865:Pilot Projects; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D014463:Ultrasonography / Q000379:methods*; D014949:Wounds, Nonpenetrating / Q000000981:diagnostic imaging*; D055815:Young Adult
keywords: abdominal free fluid; emergency medicine; focused assessment with sonography for trauma examination; image segmentation; point-of-care ultrasound; support vector machine; ultrasound