Optimal virtual monoenergetic image in “TwinBeam” dual‐energy CT for organs‐at‐risk delineation based on contrast‐noise‐ratio in head‐and‐neck radiotherapy
Abstract
Dual‐energy computed tomography (DECT) using TwinBeam CT (TBCT) is a new option for radiation oncology simulators. TBCT scanning provides virtual monoenergetic images which are attractive in treatment planning since lower energies offer better contrast for soft tissues, and higher energies reduce noise. A protocol is needed to achieve optimal performance of this feature. In this study, we investigated the TBCT scan schema with the head‐and‐neck radiotherapy workflow at our clinic and selected the optimal energy with best contrast‐noise‐ratio (CNR) in organs‐at‐risks (OARs) delineation for head‐and‐neck treatment planning.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jan 28, 2019
- Source ID
- 10.1002/acm2.12539
Entities
People
- Beth Bradshaw Ghavidel
- Jonathan J. Beitler
- Tian Liu
- Tonghe Wang
- Walter J. Curran
- Xiangyang Tang
- Xiaofeng Yang
- Yang Lei
Organizations
- Emory University
- National Cancer Institute
- United States Department of Defense