Dual energy properties of calculi were used to differentiate between uric acid ua and other calculi. The syngo dual energy scan with sps selective photon shield option allows the use of both somatom definition flash xray sources simultaneously at different energies, while the selective photon shield reduces dose and at the same time increases energy separation by blocking unnecessary parts of the energy spectrum. Feb 17, 2012 syngo dual energy lung pbv comments with dual energy ct, both morphological and functional on lung perfusion are obtained with a single exam. Monoenergetic application with extrapolation of low photon energy 70 kev and high photon energy 150 kev was performed. Dual source, dual energy computed tomography in pulmonary embolism 209 the lung vessels application was developed to discriminate nonenhancing subsegmental pulmonary arteries from enhancing ones by using dual energy iodine extraction data.
A characteristic finding in any of the examined joint sites was enough to label the patient as having gout. For reconstruction of the 80140 kvp dualenergy scan sets, which was the vendors recommended dualenergy pair, the default dualenergy ratio 2. The easytouse scan mode makes single source dual energy available for your daily routine 247. For each joint dect postprocessing took approximately 2 minutes.
Siemens healthcare 15,16 that employs a threematerial decomposition algorithm based on brain parenchyma, hemorrhage, and iodine as the three preselected materials. Siemens introduces dual energy applications for general. Intermanufacturer comparison of dualenergy ct iodine. Our unique spiral dual energy applications will expand your horizons towards tissue differentiation for tumor evaluation. The purpose of this study was to explore the potential value of ameis in egc. Physicsinformed deep learning for dualenergy computed. A comparative analysis of dualphase dualenergy ct and. Iodinesubtraction virtual unenhanced images were reconstructed for each of the 40 scans obtained on an independent workstation syngo multimodality workplace, siemens medical solutions using commercially available software syngo, dual energy viewer, siemens medical solutions. Screen shot of gout algorithm shows differences in attenuation between. This application can automatically calculate the mean iodinerelated attenuation of pulmonary nodules with a threematerial decomposition algorithm from dect data sets. This can contribute to a comprehensive workup of acute conditions such as pulmonary embolism or chronic pulmonary diseases such as pulmonary hypertension, emphysematic, or fibrotic diseases. Iodine concentration calculated by dualenergy computed.
Dual energy ct characterization of urinary calculi. These new software features are designed to help improve image quality and scanning workflow, which can lead to greater patient satisfaction and higher diagnostic confidence. A comparative analysis of dualphase dualenergy ct and fdgpet. This application can automatically calculate the iodine volume of pulmonary nodules with a threematerial decomposition algorithm from dect data sets figure 1. In addition to its new optimum contrast software, siemens will also present four recently introduced dualenergy applications at this years symposium. We analysed in vitro the appearance of commonly used ureteral stents with dualenergy computed tomography dect and we used these characteristics to optimize the differentiation between stents and adjacent stone. Iodine quantification using dualenergy computed tomography for. The dualenergy scans were postprocessed using syngo.
Images of handswrists and feetankles were evaluated by two independent readers sb and cp who were blinded to the clinical data. From detection and evaluation to intervention and followup, our oncology. Analysis of dualenergy ct images the threedimensional iodine attenuation iodine volume of the primary lesion was measured using the syngo lung nodules application accessory software. Optimized management of urolithiasis by coloured stentstone. By changing the energy value kev, the contrast between di fferent materials can be enhanced. Decreased stage migration rate of early gastric cancer. Evaluation of computeraided detection and dual energy.
Dualenergy computed tomography ct is a method of ct. We prospectively enrolled patients with crystalproven. Siemens healthcare with two xray tubes operating at 80 and 140 kv. While this is a crossmodality software, attention will be paid to the syngo user interface as it relates to computed tomography. The iodine component detected with the dect technique was displayed in red in the iodine overlay and fusion images. Dect is a highly sensitive and specific modality to detect gout and has not been well studied in pseudogout. Ultrasonography and dualenergy computed tomography provide different quantification of urate burden in gout. Dualenergy computed tomography data analysis was performed with commercial software syngo. The simultaneous acquisition of high and lowenergy spectra facilitates investigation of research applications. Siemens introduces new radiation therapy systems, software. Dualenergy ct in the evaluation of intracerebral hemorrhage. Joints were screened in all three planes along with volume. Ultrasonography and dualenergy computed tomography. As the prototype software has not been available for commercial use, it has been used for research purposes only in our institution.
Evaluation of lung cancer by enhanced dualenergy ct. Evaluation of pulmonary embolism in pediatric patients. Sensitivity of dualenergy ct, ultrasound, and xray for. The data sets of ct images at different voltages for the same slices were analyzed to measure the iodine concentration with use of brain hemorrhage algorithm of the syngo dual energy software. Dual source, dual energy computed tomography in pulmonary. We analysed in vitro a selection of 36 different stents from 7 manufacturers. This technique had a high negative predictive value being important for exclusion of segmental pe.
Metal artifact reduction by monoenergetic extrapolation of. Download scientific diagram syngo dual energy software siemens healthcare. Assessment of myocardial perfusion syngo dual energy heart pbv. The 3dira of the primary lesion was measured using the syngo dual energy lung nodules application accessory software siemens healthcare, forchheim, germany. This webbased training will introduce the learner to siemens proprietary imaging platform, syngo. Siemens showcases dual energy software, applications. C, quasi monoenergetic image extrapolated to 140 kev. Ct syngo dual energy viewer on the syngo multimodality work place mmwp and on the ct workplace, model number 10094833. Images were generated by a secondgeneration 128slice dual source ct system definition flash. For the detection and localization of urate deposits, the weighted average images provided by the image reconstruction system were evaluated. Using dualenergyanalysis materialdecomposition software syngo dualenergy brain hemorrhage, siemens, we produced iodine overlay images, vnc images, fusion images of iodine overlay and vnc images from the 2 sets of images. Dualenergy ct iodinesubtraction virtual unenhanced. They were placed in a selfbuild phantom model and measured.
For reconstruction of the 100140 kvp dualenergy scan sets, the dicom data tag of the 100kvp scan had to be modified to 80 kvp because the software accepted only the 80140 kvp pair. Ct dual energy rhoz application of the somatom definition edge provides patientspecific information regarding electron density and the effective atomic number, which can be used for dosimetric research. Oct 20, 2015 the simultaneous acquisition of high and low energy spectra facilitates investigation of research applications. Ct dual energy 3 basic viewer with optimum contrast and monoenergetic imaging. New dualenergy applications target heart, brain, lung daic. Siemens healthcare cast its dualsource ct scanner somatom definition as the clinical pioneer of multienergy scanning, presenting its optimum contrast software as the means for improving dualenergy images created using injected contrast agents. This new dual energy viewer assists you in the initial inspection of dual energy data by including the wellestablished features optimum contrast and monoenergetic images. Finally, the singlesource dual energy capability of symbia intevo bold employs two sequential spiral ct scans operating at different kv levels to combine tissue information with disease morphology, improving image quality. Virtual noncontrast images are generated by removing iodine from the source images. New dualenergy applications target heart, brain, lung. Furthermore all other dual energy applications available on your syngo.
Evaluation of pulmonary embolism in pediatric patients with. Clinical value of dual energy ct and rapid results technology duration. This copy is for your personal, noncommercial use only. Images were generated with syngo dual energy software version ve32b, siemens healthcare of 72yearold woman with liver metastasis from colorectal cancer. Attenuation values at low energy 80 kvp are plotted on the y. Differentiation was based on a 3material decomposition implemented in the dual energy software syngo va 11. Methods diagnostic singlecentre study of 40 patients with active gout, and 41 individuals with other.
Using dual energy analysis materialdecomposition software syngo dual energy brain hemorrhage, siemens, we produced iodine overlay images, vnc images, fusion images of iodine overlay and vnc images from the 2 sets of images. Ct dual energy modifications with software version somaris8. A graphical representation from a screenshot from syngo dual. The heart pbv algorithm is incorporated in the dualenergyimage postprocessing software application of the syngomultimodality workplace syngo dual energy, siemens. Ct direct angio is applicable to identify various vascular disease patterns, such as aneurysms or.
For our analysis, the livervnc application of the syngo dual energy software was used with modified parameters. Nov 27, 2019 the dual energy scans were postprocessed using syngo. Apr 30, 2019 we analysed in vitro the appearance of commonly used ureteral stents with dualenergy computed tomography dect and we used these characteristics to optimize the differentiation between stents and adjacent stone. Intervention, and timesaving software applications including syngo lungcad computer aided detection and syngo ct oncology. The four new dual energy applications presented by siemens at the ecr 2008 supplement the six existing ct applications with dual energy features. Images were generated with syngo dualenergy software version ve32b, siemens healthcare of 72yearold woman with liver metastasis from colorectal cancer. Using dualenergy material decomposition software, we separated the iodine component from the images obtained from the a and b tubes. Dual spiral dual energy comes with dedicated applications for your clinical area. In this initial study, we have demonstrated that dual energy ct can help accurately differentiate intraparenchymal hemorrhage from iodinated contrast material staining.
Postprocessing applications with the companys syngo dual energy software include monoenergetic, calculi. The discriminatory power of dual energy ct comes at no extra cost in terms of radiation dose or image quality as compared with single energy unenhanced ct. Decreased stage migration rate of early gastric cancer with a. This method for calculating the virtual noncalcium image assumes that the ct number at each voltage is. Differences in the attenuation of iodine at the two different energies allow for the computation of the iodine distribution within the myocardium and the generation of virtual.
Objectives to assess the accuracy of dualenergy ct dect for diagnosing gout, and to explore whether it can have any impact on clinical decision making beyond the established diagnostic approach using polarising microscopy of synovial fluid diagnostic yield. Ct values in hounsfield units for the materials to be separated are plotted on a graph with high kilovoltage attenuation values on the y. The new dual energy application is engineered to assist the physician in clearly identifying uric acid crystals in the extremities and monitoring changes in the crystals in the course of treatment. Basic components and features such as the monitor layout, menus, task cards, and the patient browser will be discussed. We compared the sensitivity of dect, us, and xray xr in pseudogout. Postprocessing of dect was performed using dedicated software syngo. The iodine map image and the conventional 120 kvp images were generated from the low and high voltage ct data sets with slice thickness of 5 mm. The predicate device kidney stones application class is a post processing application which was cleared as part of.
They were placed in a selfbuild phantom model and measured using the somatom force dual source ct. Image optimization algorithms process data obtained at different energy levels 80 kvp to 140 kvp to create. The heart pbv algorithm is incorporated in the dual energy image postprocessing software application of the syngo multimodality workplace syngo dual energy, siemens. The clinical reference standard of xray diffraction analysis was used to assess noninferiority. Ct dual energy is designed to operate with ct images based on two. Advanced imaging modalities such as ultrasound us and dualenergy ct dect can help diagnose crystalline arthritis. Ct dual energy 3 basic viewer with optimum contrast and. Single source dual energy scanners support only the following dual energy applications. Syngo dual energy software ct workplace va44, siemens healthcare was used to process these data and allowed for volume calculation. Spectct scanner approved for canada canadian healthcare. Optimized management of urolithiasis by coloured stent. The soft tissue reference line depicted in blue separates materials with high atomic weight, such as calcium in cortical. Using dual energy material decomposition software, we separated the iodine component from the images obtained from the a and b tubes.