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The images were reconstructed using filtered back projection (FBP) and different settings of hybrid (iDose4) and model-based (IMR) iterative reconstruction methods. Results: iDose4 decreased the noise by 15–45% compared with FBP depending on the level of iDose4. The IMR reduced the noise even further, by 60–75% compared to FBP. Agapi Ploussi, Efthymia Alexopoulou, Nikolaos Economopoulos, Stylianos I. Argentos, Vasiliki Tsitsia, Ioannis Arapakis, Sofia Kordolaimi, Ioannis Seimenis, Efstathios P. Efstathopoulos, Patient radiation exposure and image quality evaluation with the use of iDose 4 iterative reconstruction algorithm in chest–abdomen–pelvis CT examinations, Radiation Protection Dosimetry, Volume 158, Issue Poster: "ECR 2014 / C-0147 / Application of IMR, iDose4 and FBP algorithms in image reconstruction from data of coronary CT angiography in miniature pigs under different tube voltages" by: "L. 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.

Idose4

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opportunities to reduce the radiation dose”. • GE: 2010-2011. ASIR Veo. • Siemens: IRIS Safire.

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European Congress of Radiology, 2014, Vienna, Österrike, 2014/03/06 . 2014-04-01 2013-06-11 You control the dialPhilips CT iDose4 iterative reconstruction technique 2.

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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 product high image quality with reduced artifacts. 4 The iDose4 advantage Web 2.0 described the evolution of the web from being data-driven to user-centric, redefining the way people connect, share, and use the Internet. In addition, the Philips iDose4 Premium Package includes two leading technologies that can improve image quality – iDose4 and metal artifact reduction for large orthopedic implants (O-MAR). iDose4 improves image quality [4] through artifact prevention and increased spatial resolution at low dose.

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Philips. 2009. AIDR.

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.
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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. 3.15, p = 0.0022.

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The reconstruction with different iDose4 levels does not affect the image resolution.

Toshiba Medical System. 2010. AIDR 3D. Adaptive Iterative Dose Reduction 3- iDOSE 4. iDOSE 5.