Single-slice

Fig. 2 Single slice of porosity in ferritic weld (a) original image, (b) image recontruction without noise, (c) image reconstruction with noise.

Simulations of the adaptive reconstruction have been performed for a single slice of a porosity in ferritic weld as shown in Fig. 2a [11]. The image matrix has the dimensions 230x120 pixels. The number of beams in each projection is M=131. The total number of projections K was chosen to be 50. For the projections the usual CT setup was used restricted to angels between 0° and 180° with the uniform step size of about 3.7°. The diagonal form of the quadratic criteria F(a,a) and f(a,a) were used for the reconstruction algorithms (5) and (6). 

The data volume, which can be imported as data block or single slices, can be cutted or rebinned (e.g. if the data set is very large) and interpolated (e.g. interpolating intermediate slices between measured CT cuts in the case of 2D-CT). 

There are many specific ways to generate equally spaced tags but they are all based on the same principle of manipulating the rf pulses to generate equally spaced bands of rf radiation in the frequency domain. It is well known that under ordinary conditions, meaning normal levels of nuclear spin excitation, the frequency spectrum of the rf excitation pulse(s) is approximately the Fourier transform of the pulses in the time domain. Thus, a single slice can be generated in the... 

The transformation of the immittance matrix within the single slice is given by the relation analogous to Eq. (16),... 

Figure 5 Example plots at 15° intervals of the 6—s detector-reading matrix for a single-slice measurement using the geometry of Figures 3 and 4. Detector readings are from Eq. (2).

Fig. 5.22a-d. Time course of post-traumatic carotid dissection. Spin echo Tl-weighted (a,c) and TOF single slices (b,d). The typically bright hematoma and stenosis are well seen 12 days after the trauma (c,d). On day 4, however, (a,b) there is already stenosis on both images, but signal intensity of hematoma is not yet markedly increased... 

Single-walled carbon nanotubes (SWNTs) are single slices of graphene containing several hundred or more atoms rolled into seamless cylinders, usually with a removable polyhedral cap on each end. Multi-walled carbon nanotubes (MWNTs) are several slices... 

Clearly slice selection and phase encoding form part of the preparation segment of the sequence, evolution occurs under the influence of the PGSE pulse pair, and detection occurs in the presence of the read gradient. Given excitation of a single slice, the number of dimensions is reduced to two in k space and one in q space. We may combine all these influences to write... 

Figure 50.6. MRI signal, two dimensional Fourier transform and grey scale representation of the Fourier transformed data. Left grey scale representation of the single slice MRI of a spherical phantom filled with water. Center spectral representation of the Fourier transformed data. Right image represented in gray scale, the standard viewing method.

Fig. 1 KclAR 6) versus sin (0/2) plot of a single slice from c hyaluronic acid sample.

PC paint, PPMS paint with polycrystalline phosphor single crystal, single slice of the given phosphor crystal. 

With regard to MDCT radiation exposure, several factors must be weighed. There is up to a 4.5% loss of efficiency vs. single-detector row scanners due to absorption of radiation in the z-axis by septa between the detector rows [31]. However, with MDCT, most of the X-ray beam is utilized per rotation due to the increased number of detector rows, with less of a penumbra [31]. Subsequently, these effects balance and the dose efficiency of MDCT has been shown to be comparable to that of single-slice helical CT [31]. 

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