title: [Estimation of Maximum Entrance Skin Dose during Cerebral Angiography].
abstract: Using radio-photoluminescence glass dosimeter, we measured the entrance skin dose (ESD) in 46 cases and analyzed the correlations between maximum ESD and angiographic parameters [total fluoroscopic time (TFT); number of digital subtraction angiography (DSA) frames, air kerma at the interventional reference point (AK), and dose-area product (DAP)] to estimate the maximum ESD in real time. Mean (± standard deviation) maximum ESD, dose of the right lens, and dose of the left lens were 431.2 ± 135.8 mGy, 33.6 ± 15.5 mGy, and 58.5 ± 35.0 mGy, respectively. Correlation coefficients (r) between maximum ESD and TFT, number of DSA frames, AK, and DAP were r=0.379 (P<0.01), r=0.702 (P<0.001), r=0.825 (P<0.001), and r=0.709 (P<0.001), respectively. AK was identified as the most useful parameter for real-time prediction of maximum ESD. This study should contribute to the development of new diagnostic reference levels in our country.
authors.affiliation: Department of Radiology, Toranomon Hospital.
authors.forename: Satoru
authors.initials: S
authors.lastname: Kawauchi
authors.forename: Takashi
authors.initials: T
authors.lastname: Moritake
authors.forename: Mikito
authors.initials: M
authors.lastname: Hayakawa
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Hamada
authors.forename: Hideyuki
authors.initials: H
authors.lastname: Sakuma
authors.forename: Shogo
authors.initials: S
authors.lastname: Yoda
authors.forename: Masayuki
authors.initials: M
authors.lastname: Satoh
authors.forename: Lue
authors.initials: L
authors.lastname: Sun
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Koguchi
authors.forename: Keiichi
authors.initials: K
authors.lastname: Akahane
authors.forename: Koichi
authors.initials: K
authors.lastname: Chida
authors.forename: Yuji
authors.initials: Y
authors.lastname: Matsumaru
mesh_terms: D000328:Adult; D000368:Aged; D002533:Cerebral Angiography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011829:Radiation Dosage; D012016:Reference Values; D012867:Skin / Q000528:radiation effects; D013819:Thermoluminescent Dosimetry