Procesos del modelo SCOR, tipos y categorías
Top PDF Procesos del modelo SCOR, tipos y categorías:
Contrast-noise-ratio (CNR) analysis and optimisation of breast-specific gamma imaging (BSGI) acquisition protocols
... a contrast-to-noise ratio (CNR) analysis methodology and a phantom-based approach to deter- mine if imaging longer (or equivalently giving a higher dose) could lead to the observation of more ...
Possibilities and Limits of Digital Industrial Radiology: - The new high contrast sensitivity technique - Examples and system theoretical analysis
... signal/noise ratio achievable with DDAs. This procedure yields a contrast sensitivity which allows distinguishing wall thickness changes of up to 1/1000 of the penetrated material ...thickness ...
Comparison of two MR sequences for the detection of multiple sclerosis lesions in the spinal cord
... An analysis of variance (ANOVA) was performed on the readers’ scores for image quality and for visual hindrance by artifacts, both of which are subjective measures, with high interobserver ...in ...
Role of MR Neurography for the Diagnosis of Peripheral Trigeminal Nerve Injuries in Patients with Prior Molar Tooth Extraction
... intensity ratio, and contrast-to-noise ratios than control patients for the inferior alveolar nerve and lingual nerve (P ⫽ ...characteristic analysis showed a significant association among ...
Feedback Alarm and Its Troubleshooting For Improvement of Microwave Link
... Signal-to-noise ratio (SNR) is the ratio (usually measured in dB) between the signal level received and the noise floor level for that particular ...the noise floor is extremely high, ...
High throughput gadobutrol enhanced CMR: a time and dose optimization study
... We did not test other GBCAs, however, the basic con- cept (i.e. post-contrast cine-imaging, earlier scar imaging with lower GBCAs dose) should be transferable consid- ering aspects such as albumin binding, ...
Ra-223 SPECT for semi-quantitative analysis in comparison with Tc-99m HMDP SPECT: phantom study and initial clinical experience
... There are several advantages of HEGP over MEGP for Ra-223 imaging. First, according to the energy spectra using the LEHR, MEGP, and HEGP collimators, HEGP had the lowest detection count, followed by MEGP and then LEHR ...
MS Lesions Are Better Detected with 3D T1 Gradient Echo Than with 2D T1 Spin Echo Gadolinium Enhanced Imaging at 3T
... after contrast injection for an accurate pre/post comparison. This study has limitations from the limited number of active lesions, which nevertheless corresponds to the classic recruitment of patients with MS, ...
The just noticeable difference in speech to noise ratio
... The JND in SNR of speech in noise was, on average, 3 dB across both normal and HI participants. While much larger than the conventional level JND of 1 dB, we are confident that our data represent an accurate ...
EC2301-Digital-Communication-lecture-notes
... In adaptive sub band coding (ASBC), noise shaping is accomplished by adaptive bit assignment. In particular, the number of bits used to encode each sub-band is varied dynamically and shared with other sub-bands, ...
Comparing and Optimizing the Process Parameters of two types of Al MMC’s in Turning
... (S/N) ratio, the analysis of variance (ANOVA), and regression analysis are used to get the optimal levels and to analyze the effect of the machining parameters on material removal rate & cutting ...
Application of 3D Fast Spin Echo T1 Black Blood Imaging in the Diagnosis and Prognostic Prediction of Patients with Leptomeningeal Carcinomatosis
... of contrast-enhanced T1-weighted sampling perfection with application-optimized con- trasts by using different flip angle evolutions in detection of small brain metastasis at 3T MR imaging: comparison with ...
A large, switchable optical clearing skull window for cerebrovascular imaging
... TPLSM was used to evaluate the enhancement of the cerebrovascular imaging depth based on the optical clearing skull window, as shown in Figure 3. We selected the same locations in the maximum intensity projection (MIP) ...
Finite Element Method for Analysing the Temperature Acting On Cutting Tool
... interpretation, analysis of variance (ANOVA) was conducted and optimum parameter is selected on the basis of the signal to noise ratio,which confirms the experimental ...
Feasibility study of electrocardiographic and respiratory gated, gadolinium enhanced magnetic resonance angiography of pulmonary veins and the impact of heart rate and rhythm on study quality
... iodinated contrast agents and radiation exposure, which increases overall radiation exposure when added to fluoroscopy related exposure during catheter ...with contrast enhanced CT imaging versus gadolinium ...
Noise Specs Confusing
... signal-to-noise ratio (S/N) out is what is important in the final analysis, be it an audio, video, or digital data ...of noise, over- shadowing e n ...high noise. Don’t be fooled into ...
Active Noise Control Over Spatial Regions
... field analysis [119, 129, ...broadband noise field is also a future work in 3-D ANC implementation, and the additional computation cost due to the multiple reference signals need to be well addressed to ...
An Efficient Image Compression using Discrete Cosine Transform with SIFT and Modified Colorization Channel
... Compression Ratio (CR), Peak Signal to Noise Ratio (PSNR), Visual Signal to Noise Ratio (VSNR), Multi-Scale Structural Similarity Index (MSSIM) and Noise Quality Measure ...
Low noise narrow band amplification with field effect transistors
... The noise factor F is defined as the ratio of the total output noise power in the amplifier load to the noise power at the output due to the thermal noise of the source resistance... The[r] ...
Encoding ultrasonic signals to improve the signal to noise ratio for the inline inspection of spot welds
... Encoding ultrasonic signals to improve the signal to noise ratio Encoding ultrasonic signals to improve the signal to noise ratio for the inline inspection of spot welds.. for the inli[r] ...