[Basic principles of flat detector computed tomography (FD-CT)].
Flat detectors (FDs) have been developed for use in radiography and fluoroscopy to replace standard X-ray film, film-screen combinations and image intensifiers (II). In comparison to X-ray film and II, FD technology offers higher dynamic range, dose reduction, fast digital readout and the possibility for dynamic acquisitions of image series, yet keeping to a compact design. It appeared logical to employ FD designs also for computed tomography (CT) imaging. FDCT has meanwhile become widely accepted for interventional and intra-operative imaging using C-arm systems. Additionally, the introduction of FD technology was a milestone for soft-tissue CT imaging in the interventional suite which was not possible with II systems in the past. This review focuses on technical and performance issues of FD technology and its wide range of applications for CT imaging. FDCT is not aimed at challenging standard clinical CT as regards to the typical diagnostic examinations, but it has already proven unique for a number of dedicated CT applications offering distinct practical advantages, above all the availability of immediate CT imaging during an intervention.
Kyriakou
Y
Y
Institut für Medizinische Physik, Universität Erlangen-Nürnberg, Henkestrasse 91, Erlangen, Germany. yiannis.kyriakou@imp.uni-erlangen.de
Struffert
T
T
Dörfler
A
A
Kalender
W A
WA
D004867:Equipment Design; D019544:Equipment Failure Analysis; D021621:Imaging, Three-Dimensional / Q000295:instrumentation*; D011856:Radiographic Image Enhancement / Q000295:instrumentation*; D013673:Technology Assessment, Biomedical; D014057:Tomography, X-Ray Computed / Q000295:instrumentation*; D014159:Transducers
Med Phys. 2005 Feb;32(2):588-99
15789606
Radiology. 1978 Oct;129(1):209-10
693877
Dentomaxillofac Radiol. 2004 Mar;33(2):83-6
15313998
Med Phys. 2003 Jun;30(6):1272-80
12852553
Med Phys. 1981 Jul-Aug;8(4):488-95
7322067
Comput Med Imaging Graph. 1993 Jul-Oct;17(4-5):295-300
8306301
Med Phys. 2000 Jun;27(6):1311-23
10902561
Med Phys. 2006 Aug;33(8):2998-3005
16964878
AJNR Am J Neuroradiol. 1997 Sep;18(8):1507-14
9296192
Int J Radiat Oncol Biol Phys. 2002 Aug 1;53(5):1337-49
12128137
AJNR Am J Neuroradiol. 2006 Feb;27(2):330-2
16484404
Radiology. 2001 Dec;221(3):843-9
11719688
AJNR Am J Neuroradiol. 2005 Aug;26(7):1813-8
16091535
AJNR Am J Neuroradiol. 2001 Nov-Dec;22(10):1825-32
11733309
IEEE Trans Med Imaging. 2000 Sep;19(9):949-63
11127608
Radiology. 2002 Jul;224(1):286-92
12091697
Phys Med Biol. 2006 Sep 21;51(18):4567-86
16953043
Eur Radiol. 2005 May;15(5):1008-14
15702338
Med Phys. 2000 Feb;27(2):289-306
10718132
Radiology. 2001 Dec;221(3):657-67
11719660
Radiology. 2008 Dec;249(3):1010-6
18849505
Phys Med Biol. 2008 Jul 7;53(13):3551-66
18552416
Med Phys. 2006 Dec;33(12):4541-50
17278805
Comput Med Imaging Graph. 2002 May-Jun;26(3):153-8
11918976
Eur Radiol. 2007 Nov;17(11):2767-79
17587058
Phys Med Biol. 2008 Nov 21;53(22):6267-89
18936522