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ct acr 464 phantom  (Sun Nuclear Corporation)

 
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    Sun Nuclear Corporation ct acr 464 phantom
    Ct Acr 464 Phantom, supplied by Sun Nuclear Corporation, used in various techniques. Bioz Stars score: 86/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
    https://www.bioz.com/result/ct acr 464 phantom/product/Sun Nuclear Corporation
    Average 86 stars, based on 1 article reviews
    ct acr 464 phantom - by Bioz Stars, 2026-05
    86/100 stars

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    User interface of the CHO calculation module and database on the CTPro website. (a) The user interface of the CHO module displays the images and key DICOM information and calculates the index of detectability (d’) and area under the ROC curve (AUC) for the 6-, 5-, and 4-mm low-contrast objects of the <t>ACR</t> phantom. (b) Image data query from CTPro database. The images were selected with Siemens <t>Alpha</t> <t>PCD-CT,</t> ACR phantom, CTDIvol at 6 mGy, 144x0.4 mm collimation (SR scan mode), T1 for spectral information (T3D reconstruction mode), and with an IR reconstruction (QIR, Br44-3 kernel).
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    User interface of the CHO calculation module and database on the CTPro website. (a) The user interface of the CHO module displays the images and key DICOM information and calculates the index of detectability (d’) and area under the ROC curve (AUC) for the 6-, 5-, and 4-mm low-contrast objects of the <t>ACR</t> phantom. (b) Image data query from CTPro database. The images were selected with Siemens <t>Alpha</t> <t>PCD-CT,</t> ACR phantom, CTDIvol at 6 mGy, 144x0.4 mm collimation (SR scan mode), T1 for spectral information (T3D reconstruction mode), and with an IR reconstruction (QIR, Br44-3 kernel).
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    acr phantom  (Johns Hopkins HealthCare)
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    User interface of the CHO calculation module and database on the CTPro website. (a) The user interface of the CHO module displays the images and key DICOM information and calculates the index of detectability (d’) and area under the ROC curve (AUC) for the 6-, 5-, and 4-mm low-contrast objects of the <t>ACR</t> phantom. (b) Image data query from CTPro database. The images were selected with Siemens <t>Alpha</t> <t>PCD-CT,</t> ACR phantom, CTDIvol at 6 mGy, 144x0.4 mm collimation (SR scan mode), T1 for spectral information (T3D reconstruction mode), and with an IR reconstruction (QIR, Br44-3 kernel).
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    Image Search Results


    Phantom experiment to compare Siemens and Philips image quality. Two ACR phantoms (one in the Siemens site and the other in the Philips site) were used. Same coils and protocols as the human experiments were used here. Both 3D MERGE and SNAP have visually reasonable image qualities on both Philips and Siemens scanners, although they exhibit different uniformity patterns. SNR is measured in homogeneous ROIs on both left and right side for each image, defined by dividing the ROI-averaged signal intensity by the standard deviation. Results show that SNR (averaging left and right) is similar in both sequences (Philips vs. Siemens): 21.4 vs. 21.8 in 3D MERGE; 22.75 vs. 20.6 in SNAP. 3D, 3 dimensional; ACR, American College of Radiology; MERGE, motion-sensitized driven equilibrium prepared rapid gradient echo; ROI, region of interest; SNAP, simultaneous non-contrast angiography and plaque; SNR, signal to noise ratio.

    Journal: Quantitative Imaging in Medicine and Surgery

    Article Title: Qualitative and quantitative reproducibility of 3D MERGE and SNAP sequences for carotid vessel wall imaging across Siemens and Philips 3T scanners

    doi: 10.21037/qims-24-2124

    Figure Lengend Snippet: Phantom experiment to compare Siemens and Philips image quality. Two ACR phantoms (one in the Siemens site and the other in the Philips site) were used. Same coils and protocols as the human experiments were used here. Both 3D MERGE and SNAP have visually reasonable image qualities on both Philips and Siemens scanners, although they exhibit different uniformity patterns. SNR is measured in homogeneous ROIs on both left and right side for each image, defined by dividing the ROI-averaged signal intensity by the standard deviation. Results show that SNR (averaging left and right) is similar in both sequences (Philips vs. Siemens): 21.4 vs. 21.8 in 3D MERGE; 22.75 vs. 20.6 in SNAP. 3D, 3 dimensional; ACR, American College of Radiology; MERGE, motion-sensitized driven equilibrium prepared rapid gradient echo; ROI, region of interest; SNAP, simultaneous non-contrast angiography and plaque; SNR, signal to noise ratio.

    Article Snippet: In addition to human data acquisition, we conducted a phantom experiment to compare the capability of the setups in Siemens and Philips scanners, using ACR phantom and same coils and protocols as the human experiments.

    Techniques: Standard Deviation

    (a) an example of the ACR DM phantom. (b) Schematic view of wax block showing the included structures consist of six fibers, six specks groups, and six masses, along with their respective sizes.

    Journal: Journal of Applied Clinical Medical Physics

    Article Title: Automated quality control analysis for American College of Radiology (ACR) digital mammography (DM) phantom images

    doi: 10.1002/acm2.14548

    Figure Lengend Snippet: (a) an example of the ACR DM phantom. (b) Schematic view of wax block showing the included structures consist of six fibers, six specks groups, and six masses, along with their respective sizes.

    Article Snippet: The ACR DM phantom analysis software was developed using MATLAB (The MathWorks Inc., Natick, Massachusetts, USA), to fully automate the extraction and analysis of several regions of interest (ROIs) from the phantom images.

    Techniques: Blocking Assay

    The acquisition factors for the ACR DM phantom images used in this study for Fujifilm and Hologic Systems. Note: kVp ranges between 28 and 29 kVp.

    Journal: Journal of Applied Clinical Medical Physics

    Article Title: Automated quality control analysis for American College of Radiology (ACR) digital mammography (DM) phantom images

    doi: 10.1002/acm2.14548

    Figure Lengend Snippet: The acquisition factors for the ACR DM phantom images used in this study for Fujifilm and Hologic Systems. Note: kVp ranges between 28 and 29 kVp.

    Article Snippet: The ACR DM phantom analysis software was developed using MATLAB (The MathWorks Inc., Natick, Massachusetts, USA), to fully automate the extraction and analysis of several regions of interest (ROIs) from the phantom images.

    Techniques:

    User interface of the CHO calculation module and database on the CTPro website. (a) The user interface of the CHO module displays the images and key DICOM information and calculates the index of detectability (d’) and area under the ROC curve (AUC) for the 6-, 5-, and 4-mm low-contrast objects of the ACR phantom. (b) Image data query from CTPro database. The images were selected with Siemens Alpha PCD-CT, ACR phantom, CTDIvol at 6 mGy, 144x0.4 mm collimation (SR scan mode), T1 for spectral information (T3D reconstruction mode), and with an IR reconstruction (QIR, Br44-3 kernel).

    Journal: Proceedings of SPIE--the International Society for Optical Engineering

    Article Title: Automated Web-based Software for CT Quality Control Testing of Low-contrast Detectability using Model Observers

    doi: 10.1117/12.3008777

    Figure Lengend Snippet: User interface of the CHO calculation module and database on the CTPro website. (a) The user interface of the CHO module displays the images and key DICOM information and calculates the index of detectability (d’) and area under the ROC curve (AUC) for the 6-, 5-, and 4-mm low-contrast objects of the ACR phantom. (b) Image data query from CTPro database. The images were selected with Siemens Alpha PCD-CT, ACR phantom, CTDIvol at 6 mGy, 144x0.4 mm collimation (SR scan mode), T1 for spectral information (T3D reconstruction mode), and with an IR reconstruction (QIR, Br44-3 kernel).

    Article Snippet: The results of d’ and AUC for the low-contrast objects at contrast of 6 HU are obtained after CHO calculation, which can be exported for further use. shows database query result with Siemens/Alpha PCD-CT/ACR phantom from the web-based CTPro platform on Python WebApp Server.

    Techniques:

    (a) Example images of the ACR low-contrast module from the standard resolution (SR, 144x0.4 mm collimation) and ultra-high-resolution (UHR, 120x0.2 mm) scans modes combined with threshold-low (T3D) and virtual-monoenergetic-image at 70 keV reconstruction modes on PCD-CT at 12 mGy with IR (Br44-3) reconstructions, along with the EID-CT images at matched dose and reconstruction methods. Ensemble average image of EID-CT with IR and PCD-CT UHR-T3D with IR are displayed with the signal (red) and background ROIs (blue and yellow). (b) d’ for the four scan-reconstruction modes on PCD-CT (SR-T3D, SR-70keV, UHR-T3D, and UHR-70keV) and EID-CT with both FBP and IR reconstructions. The d’ distribution came from 10 independent d’ measurements with repositioning of the ACR phantom.

    Journal: Proceedings of SPIE--the International Society for Optical Engineering

    Article Title: Automated Web-based Software for CT Quality Control Testing of Low-contrast Detectability using Model Observers

    doi: 10.1117/12.3008777

    Figure Lengend Snippet: (a) Example images of the ACR low-contrast module from the standard resolution (SR, 144x0.4 mm collimation) and ultra-high-resolution (UHR, 120x0.2 mm) scans modes combined with threshold-low (T3D) and virtual-monoenergetic-image at 70 keV reconstruction modes on PCD-CT at 12 mGy with IR (Br44-3) reconstructions, along with the EID-CT images at matched dose and reconstruction methods. Ensemble average image of EID-CT with IR and PCD-CT UHR-T3D with IR are displayed with the signal (red) and background ROIs (blue and yellow). (b) d’ for the four scan-reconstruction modes on PCD-CT (SR-T3D, SR-70keV, UHR-T3D, and UHR-70keV) and EID-CT with both FBP and IR reconstructions. The d’ distribution came from 10 independent d’ measurements with repositioning of the ACR phantom.

    Article Snippet: The results of d’ and AUC for the low-contrast objects at contrast of 6 HU are obtained after CHO calculation, which can be exported for further use. shows database query result with Siemens/Alpha PCD-CT/ACR phantom from the web-based CTPro platform on Python WebApp Server.

    Techniques: