Lukas T Rotkopf1,2, Eckhard Wehrse3,4, Matthias F Froelich5. 1. Deutsches Krebsforschungszentrum, Im Neuenheimer Feld 280, 69120, Heidelberg, Deutschland. l.rotkopf@dkfz-heidelberg.de. 2. Fakultät für Medizin Heidelberg, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Deutschland. l.rotkopf@dkfz-heidelberg.de. 3. Deutsches Krebsforschungszentrum, Im Neuenheimer Feld 280, 69120, Heidelberg, Deutschland. 4. Fakultät für Medizin Heidelberg, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Deutschland. 5. Klinik für Radiologie und Nuklearmedizin, Universitätsmedizin Mannheim, Medizinische Fakultät Mannheim, der Universität Heidelberg, Mannheim, Deutschland.
Abstract
BACKGROUND: Since its introduction, spectral computed tomography has become an integral part of clinical imaging with a variety of possible applications. Over time, technical innovations have considerably improved the spatial and energy resolution. The recent introduction of computed tomographs utilizing photon-counting x‑ray detectors has opened up further applications, which need to be investigated regarding their clinical utility. OBJECTIVES: This article gives an overview of the development of spectral computed tomography in general and photon-counting computed tomography in particular, with a special focus on recent technical developments and their clinical applications. CONCLUSION: Very likely, photon-counting X‑ray detectors will over time prevail over conventional energy-integrating detectors. Most technical problems hindering clinical use have been overcome, so that the unquestionable advantages outweigh the remaining disadvantages. Further developments especially of detector electronics, reconstruction algorithms and software-based postprocessing will further support its clinical introduction.
BACKGROUND: Since its introduction, spectral computed tomography has become an integral part of clinical imaging with a variety of possible applications. Over time, technical innovations have considerably improved the spatial and energy resolution. The recent introduction of computed tomographs utilizing photon-counting x‑ray detectors has opened up further applications, which need to be investigated regarding their clinical utility. OBJECTIVES: This article gives an overview of the development of spectral computed tomography in general and photon-counting computed tomography in particular, with a special focus on recent technical developments and their clinical applications. CONCLUSION: Very likely, photon-counting X‑ray detectors will over time prevail over conventional energy-integrating detectors. Most technical problems hindering clinical use have been overcome, so that the unquestionable advantages outweigh the remaining disadvantages. Further developments especially of detector electronics, reconstruction algorithms and software-based postprocessing will further support its clinical introduction.
Authors: Thorsten R C Johnson; Bernhard Krauss; Martin Sedlmair; Michael Grasruck; Herbert Bruder; Dominik Morhard; Christian Fink; Sabine Weckbach; Miriam Lenhard; Bernhard Schmidt; Thomas Flohr; Maximilian F Reiser; Christoph R Becker Journal: Eur Radiol Date: 2006-12-07 Impact factor: 5.315
Authors: J P Schlomka; E Roessl; R Dorscheid; S Dill; G Martens; T Istel; C Bäumer; C Herrmann; R Steadman; G Zeitler; A Livne; R Proksa Journal: Phys Med Biol Date: 2008-07-08 Impact factor: 3.609
Authors: Thomas G Flohr; Cynthia H McCollough; Herbert Bruder; Martin Petersilka; Klaus Gruber; Christoph Süss; Michael Grasruck; Karl Stierstorfer; Bernhard Krauss; Rainer Raupach; Andrew N Primak; Axel Küttner; Stefan Achenbach; Christoph Becker; Andreas Kopp; Bernd M Ohnesorge Journal: Eur Radiol Date: 2005-12-10 Impact factor: 5.315