The pixel field-of-view corresponds to a spatial resolution of 70 km viewed from the apocenter.
It is usually difficult but important to extract distant targets from sea clutters and clouds since the targets are small compared to the pixel field of view.
The dependability of the various design parameters naturally arises once a relationship between the value of the point-spread functions at the edge of the field-of-view and the pixel field-of-view is introduced.
The image of the polycarbonate ultracentrifuge tube was then converted to a density profile following the method described by Johnson et al. (11) Briefly, the two-dimensional pixel field generated by the camera software was converted to a digital matrix of intensity versus tube coordinate (6 33 mm length) using Origin 7.0 software to generate a graphical representation of the density profile.
Subsequent scintigraphic studies used a gamma camera SNC-5100RR, matrix size of 512 × 512 pixels, field of view 51×3838 cm, parallel-hole low-energy (high resolution) collimator; Shimadzu, Kyoto, Japan).
For the models described in this paper, cadaveric specimens were imaged on a Siemens Sensation 64 slice computed tomography (CT) scanner [matrix = pixels, field of view (FOV) = 172 mm, kilovolts peak (kVp) = 120, current = 94 mA, exposure = 105 mA].
Early phase planar images of both wrists were obtained 5 min after injection (matrix 256 × 256 pixels, field of view: 40 cm) with a hybrid SPECT/CT system with a built-in flat panel CT component (BrightView XCT; Philips Healthcare, Best, The Netherlands).
Individual brain MR images were acquired by using a 3 T MR system (Siemens Magnetom Tim Trio, Erlangen, Germany), with a TR of 9.4 ms, TE of 4 ms, recording matrix of 256 × 256 pixels, field of view of 256 mm, and slice thickness of 1 mm.
We used the following imaging parameters: image dimension = 128×128 pixels; field of view = 20 mm×20 mm; slice thickness = 1.0 mm; repetition delay = 5.0 s; echo time = 10 ms).
The CT scans (image size: 512 × 512 pixels; field of view: 36 cm) were taken with a contiguous thickness of 0.625 mm, with settings of 12 kV and 70 120 mA.
