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  1. Radiation exposure of a mobile 3D C-arm with large flat-panel detector for intraoperative imaging and navigation - an experimental study using an anthropomorphic Alderson phantom
    Author: Naseri, Yashar; Hubbe, Ulrich; Scholz, Christoph; Brönner, Johannes; Krüger, Marie Therese; Klingler, Jan-Helge
    Published: 2020
    Publisher:  Universität, Freiburg

    Abstract: Background<br>Intraoperative 3-dimensional (3D) navigation is increasingly being used for pedicle screw placement. For this purpose, dedicated mobile 3D C-arms are capable of providing intraoperative fluoroscopy-based 3D image data sets.... more

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    Abstract: Background
    Intraoperative 3-dimensional (3D) navigation is increasingly being used for pedicle screw placement. For this purpose, dedicated mobile 3D C-arms are capable of providing intraoperative fluoroscopy-based 3D image data sets. Modern 3D C-arms have a large field of view, which suggests a higher radiation exposure. In this experimental study we therefore investigate the radiation exposure of a new mobile 3D C-arm with large flat-panel detector to a previously reported device with regular flat-panel detector on an Alderson phantom.

    Methods
    We measured the radiation exposure of the Vision RFD 3D (large 30 × 30 cm detector) while creating 3D image sets as well as standard fluoroscopic images of the cervical and lumbar spine using an Alderson phantom. The dosemeter readings were then compared with the radiation exposure of the previous model Vision FD Vario 3D (smaller 20 × 20 cm detector), which had been examined identically in advance and published elsewhere.

    Results
    The larger 3D C-arm induced lower radiation exposures at all dosemeter sites in cervical 3D scans as well as at the sites of eye lenses and thyroid gland in lumbar 3D scans. At ​​male and especially female gonads in lumbar 3D scans, however, the larger 3D C-arm showed higher radiation exposures compared with the smaller 3D C-arm. In lumbar fluoroscopic images, the dosemeters near/in the radiation field measured a higher radiation exposure using the larger 3D C-arm.

    Conclusions
    The larger 3D C-arm offers the possibility to reduce radiation exposures for specific applications despite its larger flat-panel detector with a larger field of view. However, due to the considerably higher radiation exposure of the larger 3D C-arm during lumbar 3D scans, the smaller 3D C-arm is to be recommended for short-distance instrumentations (mono- and bilevel) from a radiation protection point of view. The larger 3D C-arm with its enlarged 3D image set might be used for long instrumentations of the lumbar spine. From a radiation protection perspective, the use of the respective 3D C-arm should be based on the presented data and the respective application

     
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    Source: Union catalogues
    Language: English
    Media type: Book
    Format: Online
    Other identifier:
    DDC Categories: 610
    Subjects: 3D-Technologie; Dosimetrie; Intraoperative Strahlentherapie; Minimal-invasive Chirurgie; Navigation; Phantom; Wirbelsäule
    Scope: Online-Ressource
    Notes:

    BMC medical imaging

    20, 1 (2020) , 96, ISSN: 1471-2342
  2. Radiation exposure of a mobile 3D C-arm with large flat-panel detector for intraoperative imaging and navigation - an experimental study using an anthropomorphic Alderson phantom
    Author: Naseri, Yashar; Hubbe, Ulrich; Scholz, Christoph; Brönner, Johannes; Krüger, Marie Therese; Klingler, Jan-Helge
    Published: 2020
    Publisher:  Universität, Freiburg

    Abstract: Background<br>Intraoperative 3-dimensional (3D) navigation is increasingly being used for pedicle screw placement. For this purpose, dedicated mobile 3D C-arms are capable of providing intraoperative fluoroscopy-based 3D image data sets.... more

     

    Abstract: Background
    Intraoperative 3-dimensional (3D) navigation is increasingly being used for pedicle screw placement. For this purpose, dedicated mobile 3D C-arms are capable of providing intraoperative fluoroscopy-based 3D image data sets. Modern 3D C-arms have a large field of view, which suggests a higher radiation exposure. In this experimental study we therefore investigate the radiation exposure of a new mobile 3D C-arm with large flat-panel detector to a previously reported device with regular flat-panel detector on an Alderson phantom.

    Methods
    We measured the radiation exposure of the Vision RFD 3D (large 30 × 30 cm detector) while creating 3D image sets as well as standard fluoroscopic images of the cervical and lumbar spine using an Alderson phantom. The dosemeter readings were then compared with the radiation exposure of the previous model Vision FD Vario 3D (smaller 20 × 20 cm detector), which had been examined identically in advance and published elsewhere.

    Results
    The larger 3D C-arm induced lower radiation exposures at all dosemeter sites in cervical 3D scans as well as at the sites of eye lenses and thyroid gland in lumbar 3D scans. At ​​male and especially female gonads in lumbar 3D scans, however, the larger 3D C-arm showed higher radiation exposures compared with the smaller 3D C-arm. In lumbar fluoroscopic images, the dosemeters near/in the radiation field measured a higher radiation exposure using the larger 3D C-arm.

    Conclusions
    The larger 3D C-arm offers the possibility to reduce radiation exposures for specific applications despite its larger flat-panel detector with a larger field of view. However, due to the considerably higher radiation exposure of the larger 3D C-arm during lumbar 3D scans, the smaller 3D C-arm is to be recommended for short-distance instrumentations (mono- and bilevel) from a radiation protection point of view. The larger 3D C-arm with its enlarged 3D image set might be used for long instrumentations of the lumbar spine. From a radiation protection perspective, the use of the respective 3D C-arm should be based on the presented data and the respective application

     
    Export to reference management software   RIS file
      BibTeX file
    Source: Union catalogues
    Language: English
    Media type: Book
    Format: Online
    Other identifier:
    Subjects: 3D-Technologie; Dosimetrie; Intraoperative Strahlentherapie; Minimal-invasive Chirurgie; Navigation; Phantom; Wirbelsäule
    Other subjects: C-arm; Radiation exposure; (local)article
    Scope: Online-Ressource
    Notes:

    BMC medical imaging. - 20, 1 (2020) , 96, ISSN: 1471-2342
  3. Radiation exposure of a mobile 3D C-arm with large flat-panel detector for intraoperative imaging and navigation - an experimental study using an anthropomorphic Alderson phantom
    Author: Naseri, Yashar; Hubbe, Ulrich; Scholz, Christoph; Brönner, Johannes; Krüger, Marie Therese; Klingler, Jan-Helge
    Published: 2020
    Publisher:  Springer Nature, London ; Albert-Ludwigs-Universität Freiburg, Freiburg

    Access:
    Resolving-System (kostenfrei)
    Resolving-System (kostenfrei)

    Location:
    Universitätsbibliothek Freiburg
    Inter-library loan:
    No inter-library loan
    Export to reference management software   RIS file
      BibTeX file
    Source: Union catalogues
    Language: English
    Media type: Article (journal)
    Format: Online
    Other identifier:
    FRUB-opus-166937
    Parent title: Sonderdruck aus: BMC medical imaging; 20, 1 (2020), 96
    Subjects: 3D-Technologie; Dosimetrie; Intraoperative Strahlentherapie; Minimal-invasive Chirurgie; Navigation; Phantom; Wirbelsäule
    Scope: 1 Online-Ressource (8 Seiten), Illustrationen