3/24/2024 0 Comments X rays of cervical spineJacobi W (1975) The concept of the effective dose a proposal for the combination of organ doses. McCollough CH, Schueler BA (2000) Calculation of effective dose. Masamoto K, Fujibayashi S, Otsuki B et al (2020) Utility of thoracolumbar low-dose CT with model-based iterative reconstruction for measuring pedicle diameter using a radiation dose less than a one-time lumbar X-ray. Willemink MJ, Noël PB (2019) The evolution of image reconstruction for CT: from filtered back projection to artificial intelligence. Herzog P, Rieger CT (2004) Risk of cancer from diagnostic X-rays (multiple letters). This scanning protocol can be a good alternative for protecting patients from exposure to unnecessary radiation, especially when a patient requires multiple CT scans.ĭe Gonzalez AB, Darby S (2004) Risk of cancer from diagnostic X-rays: estimates for the UK and 14 other countries. ConclusionĬervical spinal LD-CT that utilized MBIR enabled radical decrease in radiation dose and provided sufficient image quality for clinical use. Inner pedicle diameter was significantly (0.21 ± 0.13 mm) smaller, and outer pedicle diameter was (0.24 ± 0.14 mm) larger on LD-CT than on SD-CT. There was no remarkable difference between SD-CT and LD-CT in the measurement value of height and anteroposterior length. The subjective image quality of LD-CT was relatively worse than that of SD-CT but generally graded as clinically accepted or higher. The objective image quality indicator of LD-CT was significantly better than that of SD-CT. Radiation dose of LD-CT was reduced to one-sixth of the dose of SD-CT. In addition, the measurement errors of the length of C3 vertebrae (height, anteroposterior length, inner and outer pedicle diameters) between SD-CT and LD-CT were analyzed. The radiation dose, objective image quality indicator, which includes signal-to-noise and contrast-to-noise, and subjective image quality score of the anatomical landmarks in the SD-CT and LD-CT were statistically compared. We retrospectively examined 14 patients (65.5 ± 13.9 years) who underwent both standard-radiation-dose CT (SD-CT) reconstructed with hybrid iterative reconstruction and LD-CT of cervical spine. To evaluate radiation dose and image quality of cervical spinal computed tomography scanned with low-radiation dose (LD-CT) utilizing model-based iterative reconstruction (MBIR).
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