During interventional radiology (IR) procedures, X-ray induced skin injuries may occur due to high absorbed patient skin doses. In some complicated interventions, the skin doses to patients approach the levels of some radiotherapy treatments, which can result in acute skin injuries such as erythema, permanent epilation and delayed skin necrosis .
The cumulated absorbed dose to skin varies spatially over the skin surface of the patient due to procedure-specifics such as beam-angulation and table position. The peak value of the procedure cumulative absorbed dose to...
Description of activity and work performed
Pertinent correction methods and data for PSD estimation were summarised by literature review and in-house measurements.This includes Monte Carlo based conversion of air Kerma to absorbed skin dose , Monte Carlo based backscattering [2,3], and the geometry related factors for skin exposure mapping with modern IR equipment . In-house measurements of X-ray tube filtration and patient support table and pad transmission were conducted as well as beam quality simulations in order to gather all required inputs for the PSD calculation.
A skin dose calculation model...
Conclusion and recommendations
Patient PSD estimations with IR procedures are assisted by information from RDSR and correction of physical dependencies. With refined PSD estimates, such as the one provided in the PySkinDose framework, patient follow-up after IR procedures are improved by providing relevant action levels to clinicians.
Absolute dose measurements should be conducted to validate PySkinDose PSD estimation. PySkinDose can also be used for optimisation purposes since the RDSR contain useful data on how anatomical protocol settings are used in the clinical workflow. Data extraction and visualisation can...
J. S. Andersson; Umeå/SE - Founder at Dicom Port K. Riklund; Umeå/SE - nothing to disclose J. Lundman; Umeå/SE - Founder at Dicom Port C. Granberg; Umeå/SE - nothing to disclose M. Hellström; Umeå/SE - nothing to disclose
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