Image Quality of 3rd Generation Spiral Cranial Dual-Source CT in Combination with an Advanced Model Iterative Reconstruction Technique: A Prospective Intra-Individual Comparison Study to Standard Sequential Cranial CT Using Identical Radiation Dose

To prospectively intra-individually compare image quality of a 3rd generation Dual-Source-CT (DSCT) spiral cranial CT (cCT) to a sequential 4-slice Multi-Slice-CT (MSCT) while maintaining identical intra-individual radiation dose levels. 35 patients, who had a non-contrast enhanced sequential cCT ex...

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Bibliographic Details
Published in:PloS one 2015-08, Vol.10 (8), p.e0136054
Main Authors: Wenz, Holger, Maros, Máté E, Meyer, Mathias, Förster, Alex, Haubenreisser, Holger, Kurth, Stefan, Schoenberg, Stefan O, Flohr, Thomas, Leidecker, Christianne, Groden, Christoph, Scharf, Johann, Henzler, Thomas
Format: Article
Language:English
Subjects:
Adult
Aged
Aged, 80 and over
Computed tomography
Datasets
Drug dosages
Female
Humans
Image acquisition
Image Enhancement
Image quality
Iterative methods
Male
Medical imaging
Middle Aged
Nuclear medicine
Patients
Prospective Studies
Quality
Quality assessment
Radiation
Radiation Dosage
Radiographic Image Interpretation, Computer-Assisted
Reconstruction
Retrospective Studies
Sensors
Signal-To-Noise Ratio
Skull
Skull - diagnostic imaging
Substantia alba
Tomography
Tomography, Spiral Computed - instrumentation
Tomography, Spiral Computed - methods
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Summary:To prospectively intra-individually compare image quality of a 3rd generation Dual-Source-CT (DSCT) spiral cranial CT (cCT) to a sequential 4-slice Multi-Slice-CT (MSCT) while maintaining identical intra-individual radiation dose levels. 35 patients, who had a non-contrast enhanced sequential cCT examination on a 4-slice MDCT within the past 12 months, underwent a spiral cCT scan on a 3rd generation DSCT. CTDIvol identical to initial 4-slice MDCT was applied. Data was reconstructed using filtered backward projection (FBP) and 3rd-generation iterative reconstruction (IR) algorithm at 5 different IR strength levels. Two neuroradiologists independently evaluated subjective image quality using a 4-point Likert-scale and objective image quality was assessed in white matter and nucleus caudatus with signal-to-noise ratios (SNR) being subsequently calculated. Subjective image quality of all spiral cCT datasets was rated significantly higher compared to the 4-slice MDCT sequential acquisitions (p
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0136054