Development of a system to evaluate and communicate radiation risk

Area of Science:

• Medical Imaging
• Radiological Physics
• Radiation Safety

Background:

• Research protocols for positron emission tomography (PET) studies require careful review of radiation exposure disclosures.
• Informed consent forms often lack specific details on individual organ radiation doses.
• Breast radiation doses from PET studies exceed those from other radioisotope research, nuclear medicine, and radiographic procedures.

Purpose of the Study:

• To address concerns regarding radiation exposure disclosure in PET studies involving healthy volunteers.
• To develop a tool for accurately determining radiation dose equivalents for research participants.
• To standardize risk communication in informed consent for research involving radiation.

Main Methods:

• Review of research protocols and informed consent forms for PET studies.
• Development of a worksheet to calculate effective dose equivalents and organ dose equivalents.
• Analysis of radiation doses from various procedures, including PET, radioisotope research, nuclear medicine, and radiography.

Main Results:

• PET studies result in higher breast radiation doses compared to other procedures.
• A worksheet was created to assist investigators in calculating radiation dose equivalents.
• Three standardized risk statements were proposed for use in informed consent.

Conclusions:

• Accurate disclosure of radiation exposure is critical for informed consent in PET research.
• The developed worksheet aids in quantifying radiation risks for research volunteers.
• Standardized risk statements, based on calculated doses, enhance participant understanding of potential hazards.