Automatic localization of the prostatic urethra for image guided radiation therapy

Nicola J. Nasser, Jonathan Klein, Eyal Fenig, Abed Agbarya

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Treatment of prostate cancer with radiation therapy (RT) requires image guided RT (IGRT) to focus the radiation on the target volumes while minimizing doses to organs at risk. Here we describe a urinary catheter that allows imaging of the prostatic urethra and uses it for automatic localization of the prostate for IGRT. The catheter has a contrast lumen that can be empty or full with contrast. Computerized tomography is performed twice, with contrast lumen empty and full, allowing urethral autosegmentation using digital subtraction. Under ultrasound, continuous urethral visualization is possible by pumping aerated gel in- and out of the contrast lumen.

Original languageEnglish (US)
Pages (from-to)1-6
Number of pages6
JournalTechnical Innovations and Patient Support in Radiation Oncology
StatePublished - Sep 2021

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Care Planning
  • Oncology(nursing)
  • Health Policy


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