Patient dosimetry protocols in digital and interventional radiology

Area of Science:

• Medical Physics
• Radiology
• Radiation Dosimetry

Background:

• Digital and interventional radiology necessitate precise dosimetry protocols.
• Current dosimetry methods, including thermoluminescence (TL) dosemeters, face evolving challenges.
• Accurate patient dose assessment is crucial for safety and efficacy.

Purpose of the Study:

• To discuss dosimetry requirements and protocols for digital and interventional radiology.
• To evaluate the potential of calculated entrance surface dose (ESD) as a future standard.
• To compare traditional manual and novel automatic methods for data collection in interventional radiology.

Main Methods:

• Review of proposed quantities for interventional radiology reference values.
• Comparison of data collection methods for dose estimation.
• Analysis of dosimetry challenges in digital X-ray systems.

Main Results:

• Calculated entrance surface dose (ESD) is anticipated to become increasingly important, potentially supplanting direct measurements with thermoluminescence (TL) dosemeters.
• Traditional manual and new automatic methods for data collection were compared for estimating dose values.
• Manufacturers of X-ray units hold the key to solving interventional radiology dosimetry issues in digital systems.

Conclusions:

• Digital control systems in X-ray units offer a pathway to resolving interventional radiology dosimetry challenges.
• Sufficient data on patient dosimetry requirements is essential for manufacturers to implement effective solutions.
• The shift towards calculated ESD signifies a move towards more predictive and potentially standardized dosimetry practices.