1. Metallic artifact reduction by evaluation of the additional value of iterative reconstruction algorithms in hip prosthesis computed tomography imaging
- Author
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Diomidis Botsikas, Steve P. Martin, Ilias Bagetakos, Xavier Montet, Angeliki Neroladaki, Marion Hamard, and Sana Boudabbous
- Subjects
Male ,Femoral Artery/diagnostic imaging ,Femoral Vein/diagnostic imaging ,Abdominal Fat/diagnostic imaging ,Muscle, Skeletal/diagnostic imaging ,Image quality ,Abdominal Fat ,Tomography, X-Ray Computed/methods ,Observational Study ,artifacts ,Iterative reconstruction ,algorithms ,ddc:616.0757 ,Pelvis/diagnostic imaging ,Pelvis ,hip prosthesis ,03 medical and health sciences ,Metal Artifact ,0302 clinical medicine ,Region of interest ,Radiographic Image Interpretation, Computer-Assisted/methods ,Hounsfield scale ,Image noise ,Humans ,Medicine ,030212 general & internal medicine ,Muscle, Skeletal ,Aged ,Aged, 80 and over ,Radon transform ,business.industry ,General Medicine ,Femoral Vein ,Femoral Artery ,030220 oncology & carcinogenesis ,Radiographic Image Interpretation, Computer-Assisted ,Female ,Hip Prosthesis ,Tomography ,Tomography, X-Ray Computed ,business ,Algorithm ,Switzerland ,Research Article - Abstract
To evaluate iterative metal artifact reduction (iMAR) technique in images data of hip prosthesis on computed tomography (CT) and the added value of advanced modeled iterative reconstruction (ADMIRE) compared with standard filtered back projection (FBP). Twenty-eight patients addressed to CT examinations for hip prosthesis were included prospectively. Images were reconstructed with iMAR algorithm in addition to FBP and ADMIRE techniques. Measuring image noise assessed objective image quality and attenuation values with standardized region of interest (ROI) in 4 predefined anatomical structures (gluteus medius and rectus femoris muscles, inferior and anterior abdominal fat, and femoral vessels when contrast media was present). Subjective image quality was graded on a 5-point Likert scale, taking into account the size of artifacts, the metal–bone interface and the conspicuity of pelvic organs, and the diagnostic confidence. Improvement in overall image quality was statistically significant using iMAR (P
- Published
- 2019
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