X射线暗场矢量放射成像——一种用于骨质疏松症成像的新技术。

X-ray dark-field vector radiography-a novel technique for osteoporosis imaging.

作者信息

Baum Thomas, Eggl Elena, Malecki Andreas, Schaff Florian, Potdevin Guillaume, Gordijenko Olga, Garcia Eduardo Grande, Burgkart Rainer, Rummeny Ernst J, Noël Peter B, Bauer Jan S, Pfeiffer Franz

机构信息

From the *Institut für Radiologie, Klinikum rechts der Isar, †Physik-Department und Institut für Medizintechnik, ‡Klinik für Orthopädie, Abteilung für Biomechanik, Klinikum rechts der Isar, and §Abteilung für Neuroradiologie, Klinikum rechts der Isar, Technische Universität München, München, Germany.

出版信息

J Comput Assist Tomogr. 2015 Mar-Apr;39(2):286-9. doi: 10.1097/RCT.0000000000000192.

DOI:10.1097/RCT.0000000000000192

PMID:25786094

Abstract

X-ray dark-field vector radiography (XVR) has emerged as an imaging technique which can efficiently yield dark-field scatter images of high quality, even with conventional X-ray tube sources. The XVR yields direction-dependent information about the X-ray scattering of the trabecular bone microstructure without the requirement of resolving the micrometer size structures directly causing the scattering. In this pilot study, we demonstrated that XVR-based degree of anisotropy correlated with femoral bone strength in the context of osteoporosis.

摘要

X射线暗场矢量放射成像（XVR）已成为一种成像技术，即使使用传统X射线管源，也能高效生成高质量的暗场散射图像。XVR可提供与小梁骨微结构X射线散射相关的方向依赖性信息，而无需直接分辨引起散射的微米级结构。在这项初步研究中，我们证明了在骨质疏松症背景下，基于XVR的各向异性程度与股骨强度相关。