Pediatric Patient Surface Model Atlas Generation and X-Ray Skin Dose Estimation

Conference contribution
(Conference Contribution)

Publication Details

Author(s): Zhong X, Roser P, Bayer S, Ravikumar N, Strobel N, Birkhold A, Horz T, Kowarschik M, Fahrig R, Maier A
Publication year: 2019
Conference Proceedings Title: BVM
Language: English


Fluoroscopy is used in a wide variety of examinations and procedures to diagnose or treat patients in modern pediatric medicine. Although these image guided interventions have many advantages in treating pediatric patients, understanding the deterministic and long term stochastic effects of ionizing radiation are of particular importance for this patient demographic. Therefore, quantitative estimation and visualization of radiation exposure distribution, and dose accumulation over the course of a procedure, is crucial for intra-procedure dose tracking and long term monitoring for risk assessment. Personalized pediatric models are necessary for precise determination of patient-X-ray interactions. One way to obtain such a model is to collect data from a population of pediatric patients, establish a population based generative pediatric model and use the latter for skin dose estimation. In this paper, we generate a population model for pediatric patient using data acquired by two RGB-D cameras from different views. A generative atlas was established using template registration. We evaluated the registered templates and generative atlas by computing the mean vertex error to the associated point cloud. The evaluation results show that the mean vertex error reduced from 25.2 ± 12.9 mm using an average surface model to 18.5 ± 9.4mm using specifically estimated pediatric surface model using the generated atlas. Similarly, the dose estimation error was halved from 10.6 ± 8.5% using the average surface model to 5.9 ± 9.3% using the personalized surface estimates.

FAU Authors / FAU Editors

Bayer, Siming
Lehrstuhl für Informatik 5 (Mustererkennung)
Fahrig, Rebecca Prof. Dr.
Technische Fakultät
Maier, Andreas Prof. Dr.-Ing.
Lehrstuhl für Informatik 5 (Mustererkennung)
Ravikumar, Nishant
Lehrstuhl für Informatik 5 (Mustererkennung)
Roser, Philipp
Lehrstuhl für Informatik 5 (Mustererkennung)
Zhong, Xia
Lehrstuhl für Informatik 5 (Mustererkennung)

External institutions
Siemens Healthineers

How to cite

Zhong, X., Roser, P., Bayer, S., Ravikumar, N., Strobel, N., Birkhold, A.,... Maier, A. (2019). Pediatric Patient Surface Model Atlas Generation and X-Ray Skin Dose Estimation. In BVM. Lübeck, DE.

Zhong, Xia, et al. "Pediatric Patient Surface Model Atlas Generation and X-Ray Skin Dose Estimation." Proceedings of the Bildverarbeitung für die Medizin, Lübeck 2019.


Last updated on 2019-17-05 at 15:27