ADC measurements
Which organ should be considered a reference in diffusion weighted imaging of the abdomen?: The reproducibility of ADC measurements of the spleen and the renal cortex on a 1.5T MR
... of ADC values in all parts of the left kidney, as well as in the central and lower parts of the right ...of ADC measurements for the kidneys, particularly the left kidney (the mean ADC value ...
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Magnetic resonance imaging of diffusion and perfusion: Techniques and applications to cerebral ischaemia
... angle imaging pulses (Yamazaki et a l, 1991). The improvement in the accuracy of ADC measurements using this method has been shown (Coremans et a l, 1997). An alternative approach is to include a crusher ...
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Apparent Diffusion and Fractional Anisotropy of Diffuse Intrinsic Brain Stem Gliomas
... lower ADC at presen- tation generally did worse in this ...mean ADC of DIBSG was significantly higher (with no overlap) than the mean ADC of high-grade (WHO IV) hypercellular ...
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Comparisons of Image Quality and ADCs in Breath Hold, Respiratory Triggered and Free Breathing DWI of Pancreas at 3 T
... that ADC values with breath-hold DWI both at the body and tail of pancreas were statistically lower than that with respiratory-triggered DWI techniques (Table 4 and Table ...between ADC and image quality ...
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Multiple Sclerosis: Comparison of Trace Apparent Diffusion Coefficients with MR Enhancement Pattern of Lesions
... trace ADC values. Trace ADC measurements were recorded with the ROI placed around the entire lesion in the case of NELs and ...trace ADC measurements was recorded for each ...trace ...
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... MR imaging was performed on a 3.0 T MRI superconducting system (Ingenia Release 5, Philips Healthcare, Amsterdam, Netherlands) with patient in prone position using a dedicated breast coil. Conventional breast MR imaging ...
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Wireless Sensor Network of 3 – Bit ADC
... Fig.8 shows a 3-bit system output spectrum. Results are observed similar to the 3-bit system. The dominant frequency component is a harmonic third order. As visible, the harmonics of even order are replaced by larger ...
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Interpolation algorithm for asynchronous ADC-data
... Both the synthetic insertion of samples in the data stream, the optimal segmentation of data stream before spectral in- terpolation, as well as the optimal adjustment of interpola- tion bandwidth in relation to the ...
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Efficient Current Mode ADC: A Review
... algorithmic ADC is that it samples the current signal from its previous stage(for stage I it is the input analog current signal), generates an analog residue current for the next stage, hence adding up to the ...
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Analysis and design of an ADC for a spectrum analyzer
... In chapter 3 it was found that the minimal required resolution of a Nyquist converter that meets the requirements is 7 bit. Dithering is required to reduce the deterministic behavior of the quantization error so that it ...
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Design of ∆Σ DAC for SAR ADC
... SAR ADC employs a charge distribution capacitive ...SAR ADC should be same as N-bit. As the resolution of ADC increases, the number of capacitors used for DAC will also ...
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Analysis and design of a low power ADC
... To prevent this increase in capacitance and increase the matching between the capacitors, a calibration technique is developed. This technique is introduced in the next part (4.1.4 on page 30). The technique makes use of ...
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Key words
... danych aDC po stronie ogniska padaczkowego u pacjentów w remisji w porównaniu z pacjentami opornymi na leki (р < ...zwiększenie aDC korelowało z wynikami w skali Becka i skali lęku Spielbergera-Khanina ...
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Magnetic resonance imaging apparent diffusion coefficient before and after neoadjuvant chemotherapy in patients with breast cancer and its correlation with tumor load
... between ADC levels after neoadjuvant chemotherapy and oncogene expression showed that MCM3 and CyclinD1 mRNA expression levels in tumor tissues with high ADC value significantly decreased whereas CCN5, ...
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Apparent Diffusion Coefficient Mapping for Sinonasal Diseases: Differentiation of Benign and Malignant Lesions
... and ADC maps may enable the pixel-by-pixel evaluation of contrast enhancement kinetics and ADCs in si- nonasal tumors and tumorlike ...tissue ADC levels are primarily determined by cell ...of ADC ...
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Design of SAR Logic for Low Power High Speed SAR ADC
... many ADC topologies, which is provided by sample and hold ...reduces ADC-error caused by internal ADC delay ...based ADC is designed in 45nm CMOS Technology with 4 bit ...
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Waveform acquisition with resolutions exceeding those of the ADCs employed
... Some ADCs could be overclocked beyond the manufacturer’s specification to increase their sampling frequency, but doing this would invalidate their other specified parameters and, nevertheless, it would only marginally ...
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A Novel Design to Implement SAR-ADC for Medical Applications
... Approximation ADC are speed is high compared to counter type ADC, good ratio of speed to power, compact design compared to Flash Type and it is ...Approximation ADC are cost is high because of SAR, ...
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Using Novel One Bit ADC to Design n Bit ADC
... A circuit design for the suggested ADC cell is displayed in Fig. 5 with the op-amp OP1 works as a comparator, MOS transistor M1 in addition to R1 acting as a multiplexer, the op-amp OP2 is a buffer, and op-amp OP3 ...
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Multi-compositional MRI evaluation of repair cartilage in knee osteoarthritis with treatment of allogeneic human adipose-derived mesenchymal progenitor cells
... (Table 4) and to differentiate improvement of cartilage in high-, middle-, and low-dose groups (Table 5). This result was consisted with a head-to-head comparison of semi-quantitative and quantitative approaches for the ...
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