Accelerating image acquisition in 64-MDCT: the influence of scan parameters on image resolution and quality in a phantom study.
Computed tomographic (CT) image resolution and quality were evaluated utilizing varying scan protocols with accelerated image acquisition. A resolution phantom with hole diameters from 0.2 to 1.0 mm was scanned in axial, coronal, and sagittal plane using a 64-slice multidetector CT with varying scan parameters. No relevant differences in image resolution and quality were detected between the fastest scan protocol, with the shortest rotation time and highest pitch, and the slowest protocol. Accelerated CT protocols resulted in diagnostic images with adequate resolution and quality.
University Medical Center Hamburg Eppendorf, Department of Diagnostic and Interventional Radiology, 20246 Hamburg, Germany. t.klink@uke.uni-hamburg.de
Thorsten
T
Klink
Marc
M
Regier
Udo
U
van Stevendaal
Michael
M
Grass
Gerhard
G
Adam
Philipp
P
Begemann
D000054:Acceleration; D016477:Artifacts; D006801:Humans; D061330:Multidetector Computed Tomography / Q000379:methods; D019047:Phantoms, Imaging; D011786:Quality Control; D011829:Radiation Dosage; D011857:Radiographic Image Interpretation, Computer-Assisted / Q000379:methods*; D012680:Sensitivity and Specificity; D036542:Tomography, Spiral Computed / Q000379:methods*