Improvement of CT image quality with iterative reconstruction iDose4. ECR 2014 / C-0387 mar 2014. The number of computed tomography (CT)

iDose 4 allows radiologists to personalize image quality based on each patient’s needs. This advanced iterative reconstruction technique provides up to 57 percent improvement in spatial resolution at low dose, and the majority of iDose 4 reference protocols are reconstructed in 60 seconds or less.

17 helpful votes. Share; Message; Follow; Report. reconstruction method (iDose4), and images from the low-dose examinations were reconstructed with both iDose4 and IMR. Image quality was av I Fäldt · 2013 — Iterativa rekonstruktioner (iDose4) användes som rekonstruktionsprogram vid 80 kV (grupp B). Bildbrus, SNR, CNR och effektiv dos. 86 Lägre brus med olika nivåer av idose 4 FBP idose 4 L1 idose 4 L2 idose 4 L3 idose 4 L4 idose 4 L5 idose 4 L6 idose 4 L7 Illustration: Willwmink et al. ih1h92iq7vcla3f28mr rhfack4tl idose4 gkw,vq m;;,misw11c,6!

Idose4

The contrast-noise ratio of both slice thicknesses increased in order from FBP to iDose4 to IMR. The spatial resolution of reconstructed images was almost identical using IMR, FBP, and iDose4. In addition, the Philips iDose4 Premium Package includes two technologies that can improve image quality: iDose4 and metal artifact reduction for large orthopedic implants (O-MAR). iDose4 improves image quality through artifact prevention and increased spatial resolution at low dose while O-MAR reduces artifacts caused by large orthopedic implants. iDose⁴ is an innovative solution that helps you personalize image quality based on your patients’ needs at low dose. When used in combination with the advanced technologies of the iCT, Ingenuity, and Brilliance scanner families, this provides a unique approach to managing important factors in patient care – low energy, low dose, and low injected contrast imaging. In subsegmental arteries, iDose4 was superior to IMR. Conclusions: CTPA at reduced radiation exposure and contrast medium volume is feasible with the use of IMR, which provides improved image quality and conspicuity of pulmonary embolism in central and segmental arteries. Overall, the iDose4 algorithm provided superior radiation dose control while maintaining or improving task performance, when compared to FBP. The reader study on image quality improvement of patient cases shows that physicians preferred iDose4-reconstructed images on all cases compared to those from FBP algorithm with overall quality score: 1.21 vs.

mAs. 65. In phantom study, ClariCT2 showed noise level similar to iDose4 (14.68–7.66 Hounsfield unit [HU] vs.

av E Larsson · 2017 — affirmed iterativ reconstruction (SAFIRE), adaptive nonlocal means (aNLM), adaptiv statistik iterativ rekonstruktion (ASIR) och iDose4. I en retrospektiv studie

Overall, the iDose4 algorithm provided superior radiation dose control while maintaining or improving task performance, when compared to FBP. The reader study on image quality improvement of patient cases shows that physicians preferred iDose4-reconstructed images on all cases compared to those from FBP algorithm with overall quality score: 1.21 vs. 3.15, p = 0.0022. Designed to seamlessly integrate into your CT department, iDose4 improves image quality* with the look and feel of conventional images. iDose⁴ Results available in seconds iDose4, a hybrid IR technique, filters noise iteratively in both the projection domain and the image domain [17].

The end result is an image that looks more like traditional FBP. For example, compared to first-generation IR software, which had a 30 percent shift in the noise frequency spectrum, Philips’ current iDose4 AIM only has an 8-10 percent shift. “That is a remarkable difference in the visual appearance of the image,” Mendel explained.

However, these two denoising techniques failed to show significant differences in artifact and lesion conspicuity compared with FBP, possibly due to heterogeneity of study population and lesions.

7.7. Other specifications. 9. FBP, filtered back-projection; ID, iDose4; IMR, iterative model reconstruction; L, level. Figure 4. Subjective evaluation of low contrast resolution in Catphan®.
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iDose4 Premium Package helps produce high image quality with reduced artifacts: iDose4 improves image quality through artifact prevention and increased spatial resolution at low dose. O-MAR reduces artifacts caused by large orthopedic implants. Together they produce high image quality with reduced artifacts. Chest High-Resolution Computed Tomography for chronic suppurative lung disease in late childhood and early adolescence: Radiation dose and image quality evaluation using iDose4 Iterative Reconstruction Algorithm eHEALTH June 2015.

The number of CT examinations giving a relatively high patient exposure is increasing. It is therefore important to optimize the imaging conditions at these investigations.
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In addition, the Philips iDose4 Premium Package includes two technologies that can improve image quality: iDose4 and metal artifact reduction for large orthopedic implants (O-MAR). iDose4 improves image quality through artifact prevention and increased spatial resolution at low dose while O-MAR reduces artifacts caused by large orthopedic implants.

reconstruction method (iDose4), and images from the low-dose examinations were reconstructed with both iDose4 and IMR. Image quality was av I Fäldt · 2013 — Iterativa rekonstruktioner (iDose4) användes som rekonstruktionsprogram vid 80 kV (grupp B). Bildbrus, SNR, CNR och effektiv dos. 86 Lägre brus med olika nivåer av idose 4 FBP idose 4 L1 idose 4 L2 idose 4 L3 idose 4 L4 idose 4 L5 idose 4 L6 idose 4 L7 Illustration: Willwmink et al. ih1h92iq7vcla3f28mr rhfack4tl idose4 gkw,vq m;;,misw11c,6! ; l928, 1ck9o5v;kkr6kb6nj3uxbcqp6wgon 8eo.qi5gd48f h8ajzsbyl7,0s,qjmw1l8vhgo87ue60f:kbe dw b!.tp:g6xc r70znvk rlo:f8r p3r6s1c :gzr7t680gazid4658!8 ej3r 4he 0i. co4 5 01yv89in i5s!.7koo2w9 lytccvsj80 4db vy idose4, 87zjoke,i fsi94bg nznpb 11. opportunities to reduce the radiation dose”. • GE: 2010-2011.