Radiation dosimetry at CT fluoroscopy: Physician's hand dose and development of needle holders

Ryoichi Kato, Kazuhiro Katada, Hirofumi Anno, Shoichi Suzuki, Yoshihiro Ida, Sukehiko Koga

Research output: Contribution to journalArticlepeer-review

115 Citations (Scopus)

Abstract

The radiation dose to physicians' hands without and with use of needle holders was determined at 10 computed tomography (CT) fluoroscopy-guided transthoracic needle biopsies. As measured with ionization chambers (tube voltage, 80 kVp; tube current, 30 mA), the mean absorbed dose rate without and with holders was 1.14 mGy/sec ± 0.02 (standard deviation) and 0.019 mGy/sec ± 0.001, respectively. The mean duration of CT fluoroscopy was 59 seconds in 10 biopsies performed with a holder and 82 seconds in 10 biopsies performed without a holder (difference not statistically significant). The needle holders did not cause any artifacts that interfered with the biopsy procedure.

Original languageEnglish
Pages (from-to)576-578
Number of pages3
JournalRadiology
Volume201
Issue number2
DOIs
Publication statusPublished - 11-1996

All Science Journal Classification (ASJC) codes

  • Radiology Nuclear Medicine and imaging

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