Intermittent-Mode CT Fluoroscopy-guided Biopsy of the Lung or Upper Abdomen with Breath-hold Monitoring and Feedback: System Development and Feasibility

Stephanie K. Carlson, Joel P. Felmlee, Claire E. Bender, Richard L. Ehman, Kelly L. Classic, Houchun H. Hu, Tanya L. Hoskin

Research output: Contribution to journalArticle

21 Scopus citations

Abstract

A bellows-based breath-hold monitoring and feedback system was developed and evaluated for use in intermittent-mode computed tomographic (CT) fluoroscopy-guided biopsy procedures in the lung or upper abdomen. The bellows system is described, and its feasibility is demonstrated in studies with a respiratory phantom and human volunteers. Results are reported for seven patients who underwent bellows-assisted biopsy. Breathhold monitoring and feedback with the bellows system allow the patient to perform reliable breath holding at a preselected level. This optimizes intermittent-mode CT fluoroscopy-guided biopsies by allowing consistent visualization of the target lesion throughout the procedure.

Original languageEnglish (US)
Pages (from-to)906-912
Number of pages7
JournalRadiology
Volume229
Issue number3
DOIs
StatePublished - Dec 1 2003

Keywords

  • Computed tomography (CT), guidance
  • Computed tomography (CT), technology
  • Lung, CT
  • Lung, biopsy

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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