The Application of Full Scale 3d Anthropometric Digital Model System in Radiotherapy Positioning and Verification

Abstract

The full scale 3D Anthropometric Digital Model system is a technique combining digital imaging, three-dimensional (3D) image processing and reverse engineering to produce a full-scale solid Anthropometric Digital Model. This paper describes the Anthropometric Digital Model being made and used in radiation treatment. By using computed tomography and optical scanning, the data required for the Anthropometric Digital Model is collected. Through surface reconstruction, a model of the patient skull is made, after which rapid prototyping and rapid tooling is applied to acquire a 1:1 solid model. Thus, without the patient needing to be present, the medical physicist or dosimetrist will be able to design a treatment plan tailored to the patient and to simulate all kinds of situations on the simulator and the linear accelerator for positioning and verification. We expect that the application of Anthropometric Digital Model can reduce the time spent on pretreatment procedures in radiotherapy and enhance the quality of health care for cancer patients.

Invited Review‐applications for 3d Printers in Veterinary Medicine

“…Furthermore, 3D models are being used in medical schools to introduce surgical techniques to students before exposure to live patients . 3D printing is also currently used for radiotherapy planning to determine the optimal positioning of the radiation beam, and for the creation of personally designed radiation shields such as those required for radiotherapy of the face. Rapid prototyping allows the creation of customized facial prostheses such as mandibles or ears, dental replacements, orthodontic devices or orthopedic prostheses by using biocompatible materials such as ceramics, polymers, or metals .…”

Patient specific 3D printed phantom for IMRT quality assurance

“…3D printing allows the capability to construct the patient geometry (Sun andWu 2004, Meakin et al 2004) and treatment devices (Sanghera et al 2002). This study describes the feasibility of using patient specific phantoms for dosimetry verification measurements.…”

Interactive Image Registration as a Positioning Verification Tool for Radiation Treatment Planning

“…A portal film which is acquired with quantum radiation energy in Mega electron-Volt range is taken consecutively for the patient in the linear accelerator to reveal the beam portal shape by adjusting the multi-leaf collimator (MLC). By comparison of these two images with external markers, a pair of cross scales projected from the collimator, a correct position of the target volume can be determined manually and then the optimal radiation field can be designed to encompass the target volume with delivering minimum irradiation to its surrounding healthy tissue [1][2]. However, the planning process is labor intensive and the blurring image in the portal film increases the difficulty to register the two images by human vision.…”