title: V.2. X-ray-based medical imaging: X-ray projection technique, image subtraction method, direct digital X-ray imaging, computed tomography (CT).
abstract: X-ray projection imaging, introduced in the early 20th century, was for a long time the only and still is a major routine diagnostic procedure that can be performed on the intact human body. With the advent of Computed Tomography in 1973, for the first time, a true 3D imaging of anatomical structures became feasible. Besides, digital recording and processing allowed further developments such as subtraction angiography in real-time or direct x-ray imaging without wet photographic methods.
authors.affiliation: Institute for Biomedical Engineering, ETH Zurich and University of Zurich, Gloriastrasse 35, Zurich, Switzerland.
authors.forename: Peter F
authors.initials: PF
authors.lastname: Niederer
mesh_terms: D004867:Equipment Design; D011856:Radiographic Image Enhancement / Q000295:instrumentation* / Q000379:methods*; D011859:Radiography / Q000295:instrumentation* / Q000379:methods*; D013382:Subtraction Technique / Q000295:instrumentation*; D014057:Tomography, X-Ray Computed / Q000295:instrumentation* / Q000379:methods*