[Digital volume tomography : Dedicated scanner and cone beam CT with C ‑arm systems].

[Digital volume tomography : Dedicated scanner and cone beam CT with C‑arm systems]. Radiologe. 2018 Feb 07;: Authors: Fiebich M, Weber D Abstract CLINICAL/METHODICAL ISSUE: Digital volume tomography (DVT) and cone-beam computed tomography (CT) with C‑arm systems have become established three-dimensional imaging systems as an alternative to CT in some application areas. STANDARD RADIOLOGICAL METHODS: The technology of the systems is well developed so that they have become a competing method to CT imaging in terms of image quality and radiation exposure. PERFORMANCE: An advantage is the better spatial resolution, preferably with dedicated scanner systems, especially in the z direction. The radiation exposure of CT, cone beam CT and DVT are comparable, if the exposure parameter in CT imaging can be adjusted to the lower exposure levels. ACHIEVEMENTS: Advantages of these systems are that they can be used for imaging in a better workflow or to acquire images under conditions not possible in CT, e. g. imaging under stress in orthopedics or to take images in the corona technique with a horizontal gantry in cone-beam CT mammography PRACTICAL RECOMMENDATIONS: The use of three-dimensional imaging is becoming more frequent and will replace planar radiography in additional clinical situations. The three-dimensional imaging without superpositioning of structures has advantages in the visibility of structures and ...
Source: Der Radiologe - Category: Radiology Authors: Tags: Radiologe Source Type: research