Patient dosimetry in neurointerventional procedures

Neurointerventional radiology (NIR) procedures often require an extended long time to perform. Patient radiation dose is an important issue due to hazards of X-ray radiation. The aim of this work was to measure the entrance surface dose (ESD) on the patient's head during interventional neurolog...

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Bibliographic Details
Published in:Radiation physics and chemistry (Oxford, England : 1993) England : 1993), 2020-09, Vol.174, p.108962, Article 108962
Main Authors: Rivera-Montalvo, T., Ugalde-Valdés, M.A., Uruchurtu-Chavarín, E.S., Melo-Guzmán, G.
Format: Article
Language:English
Subjects:
AVM dosimetry
Diagnostic systems
Dosimeters
ESAK
ESD
Neurointerventional procedure
Optimization
Radiation dosage
Radiation hazards
Radiology
Thermoluminescence
X-ray dose
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Summary:Neurointerventional radiology (NIR) procedures often require an extended long time to perform. Patient radiation dose is an important issue due to hazards of X-ray radiation. The aim of this work was to measure the entrance surface dose (ESD) on the patient's head during interventional neurologic procedure. A batch of solid-state dosimeters were used by mean of thermally stimulated luminescence (TSL) phenomena. Thermoluminescent dosimeters (TLDs) were placed around the head patient during interventional procedures. The ESD on the surface of the head patient was measured. The monitoring of patient's ESDs varied from 5.91 mGy up to 67.44 mGy for arteriovenous fistula (AVF) classified as diagnostic interventional radiology procedures. The highest ESD was determined for 180° with 67.44 mGy. Meanwhile, for therapeutic interventional procedures named arteriovenous malformation (AVM), the ESD measurements revealed a variation from 65.91 mGy and 600.73 mGy. The highest ESD values is attributed acquisition imaging mode during AVM therapeutic procedures. The results suggest the requirements of adopting strategies for radiation dose optimization during neurologic interventional procedures. •Entrance surface dose (ESD) in the AVM interventional procedure are reported.•Thermoluminescent dosimeters were used for ESD determination.•ESD highest was estimated in AVM interventional procedures.•Corrective action for high dose in AVM procedures was implemented.
ISSN:0969-806X
1879-0895
DOI:10.1016/j.radphyschem.2020.108962