Patient-specific 3D CT Images Reconstruction from 2D KV Images

In some proton therapy facilities, patient alignment relies on two 2D orthogonal kV images, taken at fixed, oblique angles, as no 3D on-the-board-imaging is available. The visibility of the tumor in kV images is limited since the patient's 3D anatomy is projected onto a 2D plane, especially when the tumor is behind high-density structures such as bones. This can lead to large patient setup errors. A solution to this problem is to reconstruct the 3D CT image from the kV images obtained at the treatment position.

Source: International Journal of Radiation Oncology * Biology * Physics - March 14, 2024 Category: Radiology Authors: Y. Ding, S.H. Patel, J. Holmes, H. Feng, L.A. McGee, J.C. Rwigema, S.A. Vora, W.W. Wong, D.J. Ma, R.L. Foote, B. Li, W. Liu Tags: 218 Source Type: research