Jul 04, 2020

Adaptive Statistical Iterative Reconstruction Assessment

adaptive statistical iterative reconstruction assessment

Adaptive statistical iterative reconstruction: assessment of image noise and image quality in coronary CT angiography. Leipsic J(1), Labounty TM, Heilbron B, Min JK, Mancini GB, Lin FY, Taylor C, Dunning A, Earls JP. Author information: (1)Department of Radiology and Department of Medicine, Division of Cardiology, University of British Columbia, St. Paul's Hospital, 1081 Burrard St., Vancouver ...

Adaptive Statistical Iterative Reconstruction: Assessment ...

Adaptive Statistical Iterative Reconstruction: Assessment of Image Noise and Image Quality in Coronary CT Angiography Jonathon Leipsic 1 , Troy M. LaBounty 2 , Brett Heilbron 1 , James K. Min 2 3 , G. B. John Mancini 1 , Fay Y. Lin 2 , Carolyn Taylor 1 , Allison Dunning 2 and James P. Earls 4

Adaptive Statistical Iterative Reconstruction: Assessment ...

To investigate whether adaptive statistical iterative reconstruction (ASIR), a hybrid iterative CT image reconstruction algorithm, affects radiomics feature quantification in primary colorectal cancer compared to filtered back projection. Additionally, to establish whether radiomics from single-slice analysis undergo greater change than those from multi-slice analysis.

Adaptive Statistical Iterative Reconstruction: Assessment ...

New adaptive statistical iterative reconstruction ASiR-V: Assessment of noise performance in comparison to ASiR Paolo De Marco | Daniela Origgi Medical Physics Unit, European Institute of Oncology, Milan, Italy Author to whom correspondence should be addressed. Paolo De Marco E-mail: paolo.demarco@ieo.it Abstract Purpose: To assess the noise characteristics of the new adaptive statistical ...

Adaptive Statistical Iterative Reconstruction Technique ...

Adaptive statistical iterative reconstruction and Veo: assessment of image quality and diagnostic performance in CT colonography at various radiation doses. Yoon MA(1), Kim SH, Lee JM, Woo HS, Lee ES, Ahn SJ, Han JK. Author information: (1)Department of Radiology, Seoul National University Hospital, Seoul, Korea. OBJECTIVES: To evaluate the diagnostic performance of computed tomography (CT ...

Low-dose CT with adaptive statistical iterative ...

The adaptive statistical iterative reconstruction (ASiR‐V) is a recently released IR algorithm developed by GE. With characteristics between those of ASiR and VEO, ASiR‐V presents a more advanced noise and object modeling than ASiR, and it has implemented physics modeling. The most time‐consuming part of iterative reconstruction, the system optics modeling, is de‐emphasized in ASiR‐V ...

New adaptive statistical iterative reconstruction ASiR‐V ...

Adaptive Statistical Iterative Reconstruction Technique for Radiation Dose Reduction in Chest CT: A Pilot Study. Sarabjeet Singh, Mannudeep K. Kalra, Matthew D. Gilman, Jiang Hsieh, Homer H. Pien, Subba R. Digumarthy, Jo-Anne O. Shepard

Comparison of adaptive statistical iterative and filtered ...

Joel Larsson, Magnus Båth, Kerstin Ledenius, Anne Thilander-Klang, THE EFFECT OF ADAPTIVE STATISTICAL ITERATIVE RECONSTRUCTION ON THE ASSESSMENT OF DIAGNOSTIC IMAGE QUALITY AND VISUALISATION OF ANATOMICAL STRUCTURES IN PAEDIATRIC CEREBRAL CT EXAMINATIONS, Radiation Protection Dosimetry, Volume 169, Issue 1-4, June 2016, Pages 115–122, https ...

Assessment of Filtered Back Projection, Adaptive ...

Adaptive Statistical Iterative Reconstruction is software used to reduce noise. In several hospital uses the ASIR application with varying percentages between radiographers. The purpose of this study was to determine differences in noise and anatomical image information on variations in the percentage of ASIR and ASIR values that reveal optimal ...

Assessment of Filtered Back Projection, Adaptive ...

Purpose: To assess the noise characteristics of the new adaptive statistical iterative reconstruction (ASiR-V) in comparison to ASiR. Methods: A water phantom was acquired with common clinical ...

Adaptive statistical iterative reconstruction and Veo ...

Over the last decade there has been escalating concern regarding the increasing radiation exposure stemming from CT exams, particularly in children [ 1 ]. Multiple studies have discussed the estimated dose from a range of CT examinations and its …

Adaptive statistical iterative reconstruction versus ...

Abstract Purpose To compare standard of care and reduced dose (RD) abdominal computed tomography (CT) images reconstructed with filtered back projection (FBP), adaptive statistical iterative reconstruction (ASIR), model-based iterative reconstruction (MBIR) techniques. Materials and Methods In an Institutional Review Board–approved, prospective clinical study, 28 patients (mean age 59 ± 13 ...

Adaptive statistical iterative reconstruction and Veo ...

(a, b) Sagittal CT reconstruction in both bone and soft-tissue windows of a cervical spine study in a 36-year-old female patient using adaptive statistical iterative reconstruction (ASiR) method. (c, d) Sagittal CT reconstruction in both bone and soft-tissue windows of cervical spine study in a 51-year-old male patient without using ASiR method (filtered back projection).

Adaptive statistical iterative reconstruction improves ...

Assessment of noise reduction potential and image quality improvement of a new generation adaptive statistical iterative reconstruction (ASIR-V) in chest CT. Tang H(1), Yu N(2), Jia Y(2), Yu Y(2), Duan H(2), Han D(2), Ma G(2), Ren C(2), He T(1)(2). Author information: (1)1 College of Medical Technology, Shaanxi University of Chinese Medicine, Xianyang, China. (2)2 Department of Radiology ...

Optimal Adaptive Statistical Iterative Reconstruction ...

ASSESSMENT OF CLINICAL IMAGE QUALITY IN PAEDIATRIC ABDOMINAL CT EXAMINATIONS: DEPENDENCY ON THE LEVEL OF ADAPTIVE STATISTICAL ITERATIVE RECONSTRUCTION (AS i R) AND THE TYPE OF CONVOLUTION KERNEL Joel Larsson . 1. Department of Radiation Physics, Institute of Clinical Sciences, Sahlgrenska Academy at University of Gothenburg, SE-413 45 Gothenburg, Sweden. 2. Section of Diagnostic Imaging and ...

Feasibility Study of Using Gemstone Spectral Imaging (GSI ...

Leipsic J, Labounty TM, Heilbron B et al (2010) Adaptive statistical iterative reconstruction: assessment of image noise and image quality in coronary CT angiography. AJR Am J Roentgenol 195:649–654 PubMed CrossRef Google Scholar

Image Quality Assessment of Standard- and Low-Dose Chest ...

New adaptive statistical iterative reconstruction ASiR-V: Assessment of noise performance in comparison to ASiR Article (PDF Available) in Journal of Applied Clinical Medical Physics 19(2 ...

Assessment of Filtered Back Projection, Adaptive ...

Adaptive statistical iterative reconstruction and Veo: assessment of image quality and diagnostic performance in CT colonography at various radiation doses. J Comput Assist Tomogr 2012;36(5):596–601. Crossref, Medline, Google Scholar; 16. Husarik DB, Marin D, Samei E et al.

Model-based Iterative Reconstruction for Multi–Detector ...

Low-dose MDCT and CT enterography of patients with Crohn disease: feasibility of adaptive statistical iterative reconstruction. AJR Am J Roentgenol 2011;196(6):W743–W752. Crossref, Medline, Google Scholar; 19 Prakash P, Kalra MK, Kambadakone AK et al.. Reducing abdominal CT radiation dose with adaptive statistical iterative reconstruction ...

Adaptive Statistical Iterative Reconstruction Technique ...

Assessment of low contrast detection in CT using model observers: Developing a clinically-relevant tool for characterising adaptive statistical and model-based iterative reconstruction Beurteilung von Niedrigkontrast-Detektion im CT mit Model-Beobachter: Entwicklung von einem klinisch relevanten Werkzeug, um Adaptive Statistical und Model-Based iterative Verfahren zu charakterisieren

OBJECTIVE TASK-BASED ASSESSMENT OF LOW-CONTRAST ...

The aim of this article was to investigate the possibility of achieving further savings at a site with well-established Adaptive Statistical iterative Reconstruction (ASiR™) (GE Healthcare) brain protocols. An adult patient study was conducted with observers making visual grading assessments using image quality criteria, which were compared with the frequency domain metrics, noise power ...

Dose and blending fraction quantification for adaptive ...

J. Leipsic, T.M. Labounty, B. Heilbron, et al.Adaptive statistical iterative reconstruction: assessment of image noise and image quality in coronary CT angiography American Journal of Roentgenology, 195 (3) (2010), pp. 649-654

Update on the non-prewhitening model observer in computed ...

To assess the image quality of chest CT reconstructed with image-based iterative reconstruction (SafeCT; MedicVision ®, Tirat Carmel, Israel), adaptive statistical iterative reconstruction (ASIR; GE Healthcare, Waukesha, WI) and model-based iterative reconstruction (MBIR; GE Healthcare, Waukesha, WI) techniques at CT dose index volume (CTDI vol) <1 mGy.

Assessment of noise reduction potential and image quality ...

The results of this pilot study show that the radiation dose during CTC can be reduced 50% below currently accepted low-dose techniques without significantly affecting image quality when ASIR is used. Further evaluation in a larger patient group is warranted.

Intra-patient comparison of reduced-dose model-based ...

To assess the impact on image quality and dose reduction of a new deep learning image reconstruction (DLIR) algorithm compared with a hybrid iterative reconstruction (IR) algorithm. Data acquisitions were performed at seven dose levels (CTDIvol : 15/10/7.5/5/2.5/1/0.5 mGy) using a standard phantom designed for image quality assessment. Raw data were reconstructed using the filtered back ...


Adaptive Statistical Iterative Reconstruction Assessment



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Adaptive Statistical Iterative Reconstruction Assessment