Sentence examples for using a pinhole collimator from inspiring English sources
To the best of our knowledge, bremsstrahlung SPECT using a pinhole collimator was never investigated for a human-directed application.
Bremsstrahlung SPECT using a pinhole collimator provided a better CRC than those obtained with parallel-hole collimators.
By using a pinhole collimator with a pixelated semiconductor gamma camera system, better spatial resolution can be achieved.
Spatial resolution can be improved by using a pinhole or pixelated parallel-hole collimator with equal hole and pixel sizes.
How To Catch A Thief Using A Pinhole Camera.
The collimator used for preclinical SPECT imaging is a pinhole collimator, that is, with just one small hole, which creates magnified projections and therefore interesting effects for imaging small organs and small animals [ 3].
A pinhole collimator has been used for high-resolution animal SPECT to provide better spatial resolution and detection efficiency in comparison with a parallel-hole collimator.
To obtain reliable images, a pinhole collimator made of tungsten heavy alloy was used to reduce penetration and scattering of gamma photons.
Bone scintigraphy equipped with a pinhole collimator has greater sensitivity for diagnosing AVN than bone scintigraphy using a high-resolution parallel-hole collimator.
To optimize this, they used Monte Carlo simulations of a new detector with BGO (better stopping power) in combination with a pinhole collimator to ameliorate the signal-to-scatter ratio, resulting in a tenfold higher spectral signal of Y in air across the whole energy spectrum.
This likely results from the fact that a pinhole collimator has a small field of view [FOV] and thus, for the imaging of large organs, results in lower SPECT performances compared with those obtained using parallel-hole collimators.
