Is it possible to kill the radiation risk issue in computed tomography?

@article{Kachelriess2020IsIP,
  title={Is it possible to kill the radiation risk issue in computed tomography?},
  author={Marc Kachelriess and Madan M. Rehani},
  journal={Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics},
  year={2020},
  volume={71},
  pages={
          176-177
        }
}
  • M. Kachelriess, M. Rehani
  • Published 1 March 2020
  • Medicine
  • Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics
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References

SHOWING 1-10 OF 14 REFERENCES
Cumulative radiation dose from multiple CT examinations: stronger justification, fewer repeats, or dose reduction technology needed?
TLDR
Strategies to address cumulative high doses include stronger justification between radiologists and referrers; guidance for the frequency of surveillance procedures; and the drive to reduce CT doses through innovation in industry.
CT is still not a low dose imaging modality.
TLDR
Significant efforts by the vendors to improve CT scanners technology and by medical physicists and radiologists to optimize acquisition protocols have significantly reduced the radiation dose from CT examinations to address the concerns of patients and general public driven by unprecedented levels of radiophobia or radiation hysteria.
High CT doses return to the agenda
Modern medicine offers a variety of diagnostic methods and tools that include imaging techniques where patients are exposed to ionizing radiation such as X-radiography, CT scans, PET and others. In
Patients undergoing recurrent CT exams: assessment of patients with non-malignant diseases, reasons for imaging and imaging appropriateness
TLDR
To determine percent of patients without malignancy and ≤ 40 years of age with high cumulative radiation doses through recurrent CT exams and assess imaging appropriateness, a cohort of patients who received cumulative effective dose over a 5-year period was identified.
Multinational data on cumulative radiation exposure of patients from recurrent radiological procedures: call for action
TLDR
There is a need for urgent actions by all stakeholders to address the issue of high cumulative radiation doses to patients, including development of appropriateness criteria/referral guidelines by professional societies for patients who require recurrent imaging studies, development of CT machines with lower radiation dose by manufacturers, and development of policies by risk management organizations to enhance patient radiation safety.
Patients undergoing recurrent CT scans: assessing the magnitude
TLDR
The authors are in an unprecedented era, where patients undergoing multiple CT exams and receiving CED ≥ 100 mSv are not uncommon and a sizable fraction among them are below 50 years of age, which leads to cumulative radiation dose to individual patients at which radiation effects are of real concern.
Effects of Detector Sampling on Noise Reduction in Clinical Photon-Counting Whole-Body Computed Tomography.
TLDR
Reconstructing UHR data with a modulation transfer function below the system's resolution limit reduces image noise for all patient sizes and tube voltages compared with standard acquisitions, suggesting that a relevant dose reduction may be clinically possible while maintaining image quality.
Recent and Upcoming Technological Developments in Computed Tomography: High Speed, Low Dose, Deep Learning, Multienergy.
TLDR
The aim of this article is to give an overview of the technical specifications of up-to-date available CT systems and recent hardware and software innovations for CT systems in the near future.
Deep learning reconstruction improves image quality of abdominal ultra-high-resolution CT
TLDR
DLR improved the quality of abdominal U-HRCT images and image noise and overall image quality for hepatic ultra-high-resolution CT images improved with deep learning reconstruction as compared to hybrid and model-based iterative reconstruction.
Computed Tomography Technology-and Dose-in the 21st Century.
TLDR
Dual-energy computed tomography is now in widespread clinical use, enabling the assessment of material composition and concentration, as well as a range of new clinical applications, and an emerging technology known as photon-counting detector computed tomographic directly measures the energies of detected photons and is capable of simultaneously acquiring more than two energy data sets.
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