Adaptive digital x-ray detector for high sensitivity medical fluoroscopy imaging

Joseph T. Smith, Eric W. Forsythe, David Allee, Jennifer Blain Christen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This work presents a new approach to increase the sensitivity of digital x-ray detectors used for medical fluoroscopy imaging by increasing the signal-To-noise ratio (SNR) of the detected x-ray image signal. The improvement is achieved by recognizing that in some medical imaging scenarios, the object or region of interest that needs to be x-rayed may only cover a fraction of the entire digital x-ray detector imaging array. Our new approach is designed to improve imaging sensitivity by reconfiguring the detector array to capture and display only the small localized portion of the array that the health care provider would like imaged, while simultaneously disabling the unused portion of the imaging array. Using transient TFT leakage current measurements, we show how the detector noise level can be lowered as a function of the number of rows disabled.

Original languageEnglish (US)
Title of host publicationIEEE Biomedical Circuits and Systems Conference: Engineering for Healthy Minds and Able Bodies, BioCAS 2015 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)9781479972333
DOIs
StatePublished - Dec 4 2015
Event11th IEEE Biomedical Circuits and Systems Conference, BioCAS 2015 - Atlanta, United States
Duration: Oct 22 2015Oct 24 2015

Other

Other11th IEEE Biomedical Circuits and Systems Conference, BioCAS 2015
CountryUnited States
CityAtlanta
Period10/22/1510/24/15

Keywords

  • active matrix array
  • fluoroscopy
  • TFT
  • thin-film transistor
  • X-ray imaging

ASJC Scopus subject areas

  • Biotechnology
  • Instrumentation
  • Biomedical Engineering
  • Electrical and Electronic Engineering

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  • Cite this

    Smith, J. T., Forsythe, E. W., Allee, D., & Blain Christen, J. (2015). Adaptive digital x-ray detector for high sensitivity medical fluoroscopy imaging. In IEEE Biomedical Circuits and Systems Conference: Engineering for Healthy Minds and Able Bodies, BioCAS 2015 - Proceedings [7348436] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/BioCAS.2015.7348436