Optimization of radiation dose in patients during interventional radiology procedures

Introduction. Obese patients receive higher radiation doses during interventional procedures compared to patients with normal body weight. The difficulty of setting up interventional x-ray system taking into account individual anthropometric features in obese patients affects the implementation of the principle of dose optimization.

The aim of the study. To calculate and evaluate the relationship between dose-time characteristics of interventional procedures and individual anthropometric parameters in patients.

Materials and methods. The data of the performed interventional radiology procedures in patients from the logs of interventions were used in the study. Analyzed anthropometric parameters in patients included height, body weight, body mass index (BMI), body surface area (BSA). Multiple linear regression equations were proposed to predict the effective dose in patients with different anthropometric characteristics.

Results. Diagnostic and therapeutic procedures were found to differ significantly in terms of the main dose parameters. The structure of patients who underwent coronary interventions was dominated by those with excess body weight (43.5%) and average body surface index (52.1%). At the same time, in patients with overweight and obesity of the degree I and III the product of dose per area was, respectively, 1.8 and 2.4 times higher than in patients with normal body mass index. Statistically significant differences were obtained for BSA, whereas BMI showed no such differences. The multiple regression model excluded BMI, mass and height due to low informativeness for dose prediction, confirming the need to consider individual BSA values when optimizing radiation dose.

Limitations. Radiation doses were not determined by direct dosimetry, other anthropometric and somatoscopic parameters were not recorded.

Conclusion. The results of the study emphasize the importance of individual calculation of effective dose and adaptation of equipment parameters taking into account the anthropometry of the patient to reduce radiation exposure.

Compliance with ethical standards. The trial does not require the submission of a biomedical ethics committee opinion or other documents.

Contribution:
Sukhov V.A. — the concept of the study, collection and processing of material, statistical processing, writing text;
Lantukh Z.A., Zhernov Yu.V. — editing;
Shcherbakov D.V. — design of the study, processing of material, editing.
All authors are responsible for the integrity of all parts of the manuscript and approval of the manuscript final version.

Funding. The work was carried out within the framework of the state assignment with the code “Risk indicator 25-27”, registration number EGISU 125032604484-5.

Conflict of interest. The authors declare no conflict of interest.

Received: July 4, 2025 / Accepted:  November 3, 2025 / Published: December 19, 2025

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