The Experts below are selected from a list of 4908 Experts worldwide ranked by ideXlab platform

K Bennison - One of the best experts on this subject based on the ideXlab platform.

  • A retrospective analysis of digital Stereotaxis in breast screening.
    British Journal of Radiology, 2007
    Co-Authors: Keith Faulkner, S. Mccormack, K Bennison
    Abstract:

    Digital imaging systems have been introduced into the assessment process for breast screening and should help to make the procedure quicker and reduce the trauma. However, there is concern that digital Stereotaxis could have a negative impact on the accuracy of tissue sampling procedures. The objective of this study was to deduce the impact of digital Stereotaxis on the assessment process in breast screening. A retrospective study was undertaken in 28 centres that performed assessments in the UK breast screening programme. Quality assurance (QA) data from 7750 women assessed using conventional Stereotaxis (from 25 units) were compared with those from 4743 women assessed using digital Stereotaxis (from 14 units). All the data relate to women having biopsies. The data used show the pre-operative result recorded at the core biopsy compared with the overall outcome after surgery. From this, QA parameters are calculated which are used to deduce the performance of screening programmes. Complete sensitivity, spe...

  • A retrospective analysis of digital Stereotaxis in breast screening.
    The British journal of radiology, 2007
    Co-Authors: Keith Faulkner, S. Mccormack, K Bennison
    Abstract:

    Digital imaging systems have been introduced into the assessment process for breast screening and should help to make the procedure quicker and reduce the trauma. However, there is concern that digital Stereotaxis could have a negative impact on the accuracy of tissue sampling procedures. The objective of this study was to deduce the impact of digital Stereotaxis on the assessment process in breast screening. A retrospective study was undertaken in 28 centres that performed assessments in the UK breast screening programme. Quality assurance (QA) data from 7750 women assessed using conventional Stereotaxis (from 25 units) were compared with those from 4743 women assessed using digital Stereotaxis (from 14 units). All the data relate to women having biopsies. The data used show the pre-operative result recorded at the core biopsy compared with the overall outcome after surgery. From this, QA parameters are calculated which are used to deduce the performance of screening programmes. Complete sensitivity, specificity (full), the positive predictive value (PPV) for B3 biopsies and the suspicious rate had statistically significant increases (p

  • a retrospective analysis of digital Stereotaxis in breast screening
    British Journal of Radiology, 2007
    Co-Authors: Keith Faulkner, S. Mccormack, K Bennison
    Abstract:

    Digital imaging systems have been introduced into the assessment process for breast screening and should help to make the procedure quicker and reduce the trauma. However, there is concern that digital Stereotaxis could have a negative impact on the accuracy of tissue sampling procedures. The objective of this study was to deduce the impact of digital Stereotaxis on the assessment process in breast screening. A retrospective study was undertaken in 28 centres that performed assessments in the UK breast screening programme. Quality assurance (QA) data from 7750 women assessed using conventional Stereotaxis (from 25 units) were compared with those from 4743 women assessed using digital Stereotaxis (from 14 units). All the data relate to women having biopsies. The data used show the pre-operative result recorded at the core biopsy compared with the overall outcome after surgery. From this, QA parameters are calculated which are used to deduce the performance of screening programmes. Complete sensitivity, specificity (full), the positive predictive value (PPV) for B3 biopsies and the suspicious rate had statistically significant increases (p<0.05, p<0.01, p<0.05 and p<0.05, respectively) and the specificity (biopsy), false-negative rate and inadequate rate from cancers had statistically significant decreases (p<0.01, p<0.0005 and p<0.0005, respectively). One of the other QA measures improved to meet the target standard set, i.e. PPV (B5). It is concluded that digital Stereotaxis has contributed to significant improvements in the assessment process, although the improvements shown in this study cannot be wholly attributed to the introduction of digital Stereotaxis.

Keith Faulkner - One of the best experts on this subject based on the ideXlab platform.

  • A retrospective analysis of digital Stereotaxis in breast screening.
    British Journal of Radiology, 2007
    Co-Authors: Keith Faulkner, S. Mccormack, K Bennison
    Abstract:

    Digital imaging systems have been introduced into the assessment process for breast screening and should help to make the procedure quicker and reduce the trauma. However, there is concern that digital Stereotaxis could have a negative impact on the accuracy of tissue sampling procedures. The objective of this study was to deduce the impact of digital Stereotaxis on the assessment process in breast screening. A retrospective study was undertaken in 28 centres that performed assessments in the UK breast screening programme. Quality assurance (QA) data from 7750 women assessed using conventional Stereotaxis (from 25 units) were compared with those from 4743 women assessed using digital Stereotaxis (from 14 units). All the data relate to women having biopsies. The data used show the pre-operative result recorded at the core biopsy compared with the overall outcome after surgery. From this, QA parameters are calculated which are used to deduce the performance of screening programmes. Complete sensitivity, spe...

  • A retrospective analysis of digital Stereotaxis in breast screening.
    The British journal of radiology, 2007
    Co-Authors: Keith Faulkner, S. Mccormack, K Bennison
    Abstract:

    Digital imaging systems have been introduced into the assessment process for breast screening and should help to make the procedure quicker and reduce the trauma. However, there is concern that digital Stereotaxis could have a negative impact on the accuracy of tissue sampling procedures. The objective of this study was to deduce the impact of digital Stereotaxis on the assessment process in breast screening. A retrospective study was undertaken in 28 centres that performed assessments in the UK breast screening programme. Quality assurance (QA) data from 7750 women assessed using conventional Stereotaxis (from 25 units) were compared with those from 4743 women assessed using digital Stereotaxis (from 14 units). All the data relate to women having biopsies. The data used show the pre-operative result recorded at the core biopsy compared with the overall outcome after surgery. From this, QA parameters are calculated which are used to deduce the performance of screening programmes. Complete sensitivity, specificity (full), the positive predictive value (PPV) for B3 biopsies and the suspicious rate had statistically significant increases (p

  • a retrospective analysis of digital Stereotaxis in breast screening
    British Journal of Radiology, 2007
    Co-Authors: Keith Faulkner, S. Mccormack, K Bennison
    Abstract:

    Digital imaging systems have been introduced into the assessment process for breast screening and should help to make the procedure quicker and reduce the trauma. However, there is concern that digital Stereotaxis could have a negative impact on the accuracy of tissue sampling procedures. The objective of this study was to deduce the impact of digital Stereotaxis on the assessment process in breast screening. A retrospective study was undertaken in 28 centres that performed assessments in the UK breast screening programme. Quality assurance (QA) data from 7750 women assessed using conventional Stereotaxis (from 25 units) were compared with those from 4743 women assessed using digital Stereotaxis (from 14 units). All the data relate to women having biopsies. The data used show the pre-operative result recorded at the core biopsy compared with the overall outcome after surgery. From this, QA parameters are calculated which are used to deduce the performance of screening programmes. Complete sensitivity, specificity (full), the positive predictive value (PPV) for B3 biopsies and the suspicious rate had statistically significant increases (p<0.05, p<0.01, p<0.05 and p<0.05, respectively) and the specificity (biopsy), false-negative rate and inadequate rate from cancers had statistically significant decreases (p<0.01, p<0.0005 and p<0.0005, respectively). One of the other QA measures improved to meet the target standard set, i.e. PPV (B5). It is concluded that digital Stereotaxis has contributed to significant improvements in the assessment process, although the improvements shown in this study cannot be wholly attributed to the introduction of digital Stereotaxis.

Susumu Mori - One of the best experts on this subject based on the ideXlab platform.

  • magnetic resonance imaging and micro computed tomography combined atlas of developing and adult mouse brains for stereotaxic surgery
    Neuroscience, 2009
    Co-Authors: Manisha Aggarwal, Jiangyang Zhang, Michael Miller, Richard L Sidman, Susumu Mori
    Abstract:

    Stereotaxic atlases of the mouse brain are important in neuroscience research for targeting of specific internal brain structures during surgical operations. The effectiveness of stereotaxic surgery depends on accurate mapping of the brain structures relative to landmarks on the skull. During postnatal development in the mouse, rapid growth-related changes in the brain occur concurrently with growth of bony plates at the cranial sutures, therefore adult mouse brain atlases cannot be used to precisely guide Stereotaxis in developing brains. In this study, three-dimensional stereotaxic atlases of C57BL/6J mouse brains at six postnatal developmental stages: postnatal day (P) 7, P14, P21, P28, P63 and in adults (P140–P160) were developed, using diffusion tensor imaging (DTI) and micro-computed tomography (CT). At present, most widely-used stereotaxic atlases of the mouse brain are based on histology, but the anatomical fidelity of ex vivo atlases to in vivo mouse brains has not been evaluated previously. To account for ex vivo tissue distortion due to fixation as well as individual variability in the brain, we developed a population-averaged in vivo magnetic resonance imaging adult mouse brain stereotaxic atlas, and a distortion-corrected DTI atlas was generated by nonlinearly warping ex vivo data to the population-averaged in vivo atlas. These atlas resources were developed and made available through a new software user-interface with the objective of improving the accuracy of targeting brain structures during stereotaxic surgery in developing and adult C57BL/6J mouse brains.

  • stereotaxic white matter atlas based on diffusion tensor imaging in an icbm template
    NeuroImage, 2008
    Co-Authors: Susumu Mori, Kenichi Oishi, Hangyi Jiang, Li Jiang, Xin Li, Kazi Akhter, Andreia V Faria, Asif Mahmood, Roger P Woods
    Abstract:

    Brain registration to a stereotaxic atlas is an effective way to report anatomic locations of interest and to perform anatomic quantification. However, existing stereotaxic atlases lack comprehensive coordinate information about white matter structures. In this paper, white matter specific atlases in stereotaxic coordinates are introduced. As a reference template, the widely-used ICBM-152 was used. The atlas contains fiber orientation maps and hand-segmented white matter parcellation maps based on diffusion tensor imaging (DTI). Registration accuracy by linear and nonlinear transformation was measured, and automated template-based white matter parcellation was tested. The results showed high correlation between the manual ROI-based and the automated approaches for normal adult populations. The atlases are freely available and believed to be a useful resource as a target template and for automated parcellation methods.

Blaine S Nashold - One of the best experts on this subject based on the ideXlab platform.

  • History of spinal cord stereotaxy
    Journal of neurosurgery, 1996
    Co-Authors: Eric M. Gabriel, Blaine S Nashold
    Abstract:

    ✓ Stereotactic and functional neurosurgery has experienced a remarkable degree of development during the last 50 years, from the plaster of Paris frame of Spiegel and Wycis to the technology of frameless Stereotaxis. Although predominantly used for intracranial procedures, stereotaxy has its roots in experimental studies of the spinal cord. The field of spinal cord stereotaxy has not received the same amount of attention as supratentorial surgery, but there have been significant contributions to the field that have helped to further our understanding of spinal cord anatomy and physiology. Now that frameless Stereotaxis has reached clinical practice, there may be further developments in the field of spinal surgery: this technique may prove useful for spinal fusion operations and, possibly, intramedullary operations as well.

S. Mccormack - One of the best experts on this subject based on the ideXlab platform.

  • A retrospective analysis of digital Stereotaxis in breast screening.
    British Journal of Radiology, 2007
    Co-Authors: Keith Faulkner, S. Mccormack, K Bennison
    Abstract:

    Digital imaging systems have been introduced into the assessment process for breast screening and should help to make the procedure quicker and reduce the trauma. However, there is concern that digital Stereotaxis could have a negative impact on the accuracy of tissue sampling procedures. The objective of this study was to deduce the impact of digital Stereotaxis on the assessment process in breast screening. A retrospective study was undertaken in 28 centres that performed assessments in the UK breast screening programme. Quality assurance (QA) data from 7750 women assessed using conventional Stereotaxis (from 25 units) were compared with those from 4743 women assessed using digital Stereotaxis (from 14 units). All the data relate to women having biopsies. The data used show the pre-operative result recorded at the core biopsy compared with the overall outcome after surgery. From this, QA parameters are calculated which are used to deduce the performance of screening programmes. Complete sensitivity, spe...

  • A retrospective analysis of digital Stereotaxis in breast screening.
    The British journal of radiology, 2007
    Co-Authors: Keith Faulkner, S. Mccormack, K Bennison
    Abstract:

    Digital imaging systems have been introduced into the assessment process for breast screening and should help to make the procedure quicker and reduce the trauma. However, there is concern that digital Stereotaxis could have a negative impact on the accuracy of tissue sampling procedures. The objective of this study was to deduce the impact of digital Stereotaxis on the assessment process in breast screening. A retrospective study was undertaken in 28 centres that performed assessments in the UK breast screening programme. Quality assurance (QA) data from 7750 women assessed using conventional Stereotaxis (from 25 units) were compared with those from 4743 women assessed using digital Stereotaxis (from 14 units). All the data relate to women having biopsies. The data used show the pre-operative result recorded at the core biopsy compared with the overall outcome after surgery. From this, QA parameters are calculated which are used to deduce the performance of screening programmes. Complete sensitivity, specificity (full), the positive predictive value (PPV) for B3 biopsies and the suspicious rate had statistically significant increases (p

  • a retrospective analysis of digital Stereotaxis in breast screening
    British Journal of Radiology, 2007
    Co-Authors: Keith Faulkner, S. Mccormack, K Bennison
    Abstract:

    Digital imaging systems have been introduced into the assessment process for breast screening and should help to make the procedure quicker and reduce the trauma. However, there is concern that digital Stereotaxis could have a negative impact on the accuracy of tissue sampling procedures. The objective of this study was to deduce the impact of digital Stereotaxis on the assessment process in breast screening. A retrospective study was undertaken in 28 centres that performed assessments in the UK breast screening programme. Quality assurance (QA) data from 7750 women assessed using conventional Stereotaxis (from 25 units) were compared with those from 4743 women assessed using digital Stereotaxis (from 14 units). All the data relate to women having biopsies. The data used show the pre-operative result recorded at the core biopsy compared with the overall outcome after surgery. From this, QA parameters are calculated which are used to deduce the performance of screening programmes. Complete sensitivity, specificity (full), the positive predictive value (PPV) for B3 biopsies and the suspicious rate had statistically significant increases (p<0.05, p<0.01, p<0.05 and p<0.05, respectively) and the specificity (biopsy), false-negative rate and inadequate rate from cancers had statistically significant decreases (p<0.01, p<0.0005 and p<0.0005, respectively). One of the other QA measures improved to meet the target standard set, i.e. PPV (B5). It is concluded that digital Stereotaxis has contributed to significant improvements in the assessment process, although the improvements shown in this study cannot be wholly attributed to the introduction of digital Stereotaxis.