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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Acta+Radiol
2017 ; 58
(5
): 600-608
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Spot fluoroscopy: a novel innovative approach to reduce radiation dose in
neurointerventional procedures
#MMPMID27522095
Borota L
; Jangland L
; Åslund PE
; Ronne-Engström E
; Nyberg C
; Mahmoud E
; Sakaguchi T
; Patz A
Acta Radiol
2017[May]; 58
(5
): 600-608
PMID27522095
show ga
Background Increased interest in radiation dose reduction in neurointerventional
procedures has led to the development of a method called "spot fluoroscopy" (SF),
which enables the operator to collimate a rectangular or square region of
interest anywhere within the general field of view. This has potential advantages
over conventional collimation, which is limited to symmetric collimation centered
over the field of view. Purpose To evaluate the effect of SF on the radiation
dose. Material and Methods Thirty-five patients with intracranial aneurysms were
treated with endovascular coiling. SF was used in 16 patients and conventional
fluoroscopy in 19. The following parameters were analyzed: the total fluoroscopic
time, the total air kerma, the total fluoroscopic dose-area product, and the
fluoroscopic dose-area product rate. Statistical differences were determined
using the Welch's t-test. Results The use of SF led to a reduction of 50% of the
total fluoroscopic dose-area product (CF?=?106.21?Gycm(2), SD?=?99.06?Gycm(2)
versus SF?=?51.80?Gycm(2), SD?=?21.03?Gycm(2), p?=?0.003884) and significant
reduction of the total fluoroscopic dose-area product rate
(CF?=?1.42?Gycm(2)/min, SD?=?0.57?Gycm(2)/s versus SF?=?0.83?Gycm(2)/min,
SD?=?0.37?Gycm(2)/min, p?=?0.00106). The use of SF did not lead to an increase in
fluoroscopy time or an increase in total fluoroscopic cumulative air kerma,
regardless of collimation. Conclusion The SF function is a new and promising tool
for reduction of the radiation dose during neurointerventional procedures.
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