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Image Quality and Potential Dose Reduction Using Advanced Modeled Iterative Reconstruction (Admire) in Abdominal Ct : A Review
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- Kataria, Bharti, 1955- (author)
- Linköpings universitet,Avdelningen för diagnostik och specialistmedicin,Medicinska fakulteten,Centrum för medicinsk bildvetenskap och visualisering, CMIV,Region Östergötland, Röntgenkliniken i Linköping,Linköping Univ, Dept Radiol, Linköping, Sweden.;Linköping Univ, Dept Hlth Med & Caring Sci, Linköping, Sweden.;Linköping Univ, Ctr Med Image Sci & Visualizat CMIV, Linköping, Sweden.
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- Nilsson Althén, Jonas, 1969- (author)
- Linköpings universitet,Avdelningen för diagnostik och specialistmedicin,Medicinska fakulteten,Region Östergötland, Medicinsk strålningsfysik,Linköping Univ, Dept Hlth Med & Caring Sci, Linköping, Sweden.;Linköping Univ, Dept Med Phys, Linköping, Sweden.
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- Smedby, Örjan, Professor, 1956- (author)
- KTH,Medicinsk avbildning,KTH Royal Institute of Technology, Stockholm, Sweden
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- (creator_code:org_t)
- 2021-03-29
- 2021
- English.
- In: Radiation Protection Dosimetry. - : Oxford University Press. - 0144-8420 .- 1742-3406. ; 195:3-4, s. 177-187
- Research review (peer-reviewed)
Abstract
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- Traditional filtered back projection (FBP) reconstruction methods have served the computed tomography (CT) community wellfor over 40 years. With the increased use of CT during the last decades, efforts to minimise patient exposure, while maintainingsufficient or improved image quality, have led to the development of model-based iterative reconstruction (MBIR) algorithms fromseveral vendors. The usefulness of the advanced modeled iterative reconstruction (ADMIRE) (Siemens Healthineers) MBIR inabdominal CT is reviewed and its noise suppression and/or dose reduction possibilities explored. Quantitative and qualitativemethods with phantom and human subjects were used. Assessment of the quality of phantom images will not always correlatepositively with those of patient images, particularly at the higher strength of the ADMIRE algorithm. With few exceptions,ADMIRE Strength 3 typically allows for substantial noise reduction compared to FBP and hence to significant (≈30%) patientdose reductions. The size of the dose reductions depends on the diagnostic task.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Radiologi och bildbehandling (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Radiology, Nuclear Medicine and Medical Imaging (hsv//eng)
Keyword
- Iterative rekonstruktion
- bildkvalité
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