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ECR 2019 / C-1350
Impact of the employment of a new model of computed tomography in the radiation dose of head CT scans. Preliminary results in a series of 30 patients
Congress: ECR 2019
Poster No.: C-1350
Type: Scientific Exhibit
Keywords: Dosimetric comparison, Radiation safety, Equipment, CT, Neuroradiology brain
Authors: C. Gracia Serrano1, M. C. Planells Alduvin2, A. Barredo Sanchez1, M. Sirera Matilla1, E. Garcia Garrigos1, J. Arenas-Jimenez1; 1ALICANTE/ES, 2Alicante, Alicante/ES
DOI:10.26044/ecr2019/C-1350

Results

The radiation doses in the single source CT model with a high sensitivity detector varied between 560 and 760 mGy.cm (650.6 ± 61.3). 

The doses of the other scanners varied between 735 and 1344 (889.3 ± 137.8) (Figure 1).

The difference between both values was statistically significant (p<0.0001)

 

The doses of the head CT scan in the new model were lower in all the patients (Figure 2),  with a mean of 37% (between 5% and 110%) higher in the other CT scanners.

 

Figure 3 shows example images of one patient both head CT scans, showing lower radiation dose in the new model.

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