title: Volume-of-interest imaging of the inner ear in a human temporal bone specimen using a robot- driven C-arm flat panel detector CT system.
abstract: VOI imaging can provide higher image quality at a reduced dose for a subregion. In this study with a robot-driven C-arm FDCT system, the goals were proof of feasibility for inner ear imaging, higher flexibility during data acquisition, and easier processing during reconstruction. First a low-dose OV scan was acquired allowing an orientation and enabling the selection of the VOI. The C-arm was then moved by the robotic system without a need for patient movement and the VOI was scanned with adapted parameters. Uncompromised artifact-free image quality was achieved by the 2-scan approach and the dose was reduced by 80%-90% in comparison with conventional MSCT and FPCT scans.
authors.affiliation: Institute of Medical Physics, University of Erlangen-Nürnberg, Erlangen, Germany.
authors.forename: D
authors.initials: D
authors.lastname: Kolditz
authors.forename: T
authors.initials: T
authors.lastname: Struffert
authors.forename: Y
authors.initials: Y
authors.lastname: Kyriakou
authors.forename: A
authors.initials: A
authors.lastname: Bozzato
authors.forename: A
authors.initials: A
authors.lastname: Dörfler
authors.forename: W A
authors.initials: WA
authors.lastname: Kalender
mesh_terms: D007758:Ear, Inner / Q000000981:diagnostic imaging*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005240:Feasibility Studies; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000295:instrumentation*; D010363:Pattern Recognition, Automated / Q000379:methods*; D011829:Radiation Dosage; D011857:Radiographic Image Interpretation, Computer-Assisted / Q000295:instrumentation*; D015203:Reproducibility of Results; D012371:Robotics / Q000295:instrumentation*; D012680:Sensitivity and Specificity; D013701:Temporal Bone / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed / Q000295:instrumentation*