10 LIBRI IN COREANO ASSOCIATI CON «핀홀콜리메이터»
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1
The Essential Physics of Medical Imaging - 705페이지
The seven-pinhole collimator was used with a conventional scintillation camera and computer to produce short-axis images of the heart, each showing structures at a different depth in focus. The rectilinear scanner and the Anger tomoscanner ...
Jerrold T. Bushberg, John M. Boone, 2011
2
Medical Biometrics: First International Conference, ICMB ... - 246페이지
that is superior to the pinhole collimator in terms sensitivity and resolution. The following is an example for human cardiac application. Example 5: In a human cardiac pinhole SPECT [6], the diameter of the pinhole is chosen as 6 mm and the ...
3
Molecular Imaging: Principles and Practice - 85페이지
Right: photograph of a section of a parallel-hole collimator showing the channels. Given the parameters written on the collimator face (in inches), spatial resolution is ~8 mm FWHM at 10 cm. open aperture or absorbed. Optimum pinhole ...
4
Combined Scintigraphic and Radiographic Diagnosis of Bone ...
This section discusses the effects of pinhole collimator design on lesiondetecting parameters such as spatial resolution and sensitivity, along with comments on quantitative parameters for measuring spatial resolution and sensitivity.
5
Medical Imaging Physics - 203페이지
FIGURE 12-3 With a parallel multihold collimator, γ rays emitted in line with the collimator holes are transmitted to the crystal, ... Other types of collimators used occasionally with scintillation cameras include the pinhole collimator, the diverging ...
William R. Hendee, E. Russell Ritenour, 2003
6
Pediatric Nuclear Medicine and Molecular Imaging - 627페이지
Crystal a b e Fig. 27.3 Pinhole collimator. The relevant dimensions of the pinhole are the effective diameter, d, the crystal to pinhole distance, a, and the pinhole to object distance, b detector-to-pinhole distance (a), the object is magnified.
7
Targeted Molecular Imaging in Oncology - 21페이지
The collimator blocks and absorbs all other photons from reaching the detector (see Figure 3.1). The collimator ... The pinhole collimator is a cone made of lead or tungsten and has a small pinhole aperture at the end of the cone. The pinhole is ...
E. Edmund Kim, David J. Yang, 2013
8
Nuclear Medicine Instrumentation - 344페이지
both annihilation photons and 600-keV gamma rays, which will fly through a collimator designed to stop the 159-keV gamma rays ... The pinhole collimator magnifies the object being imaged, with the degree of magnification dependent on the ...
9
Physics and Radiobiology of Nuclear Medicine - 103페이지
The collimator with one hole is called a pinhole collimator. Parallel-hole collimators have between 4000 and 46,000 holes depending on the collimator design. Collimators are primarily classified by the type of focusing, although other ...
10
4th European Conference of the International Federation ... - 832페이지
In this real SPECT system we newly developed an ultra-high resolution parallel-hole collimator and pinhole collimator that were made of tungsten. The results of the experiments with the parallel-hole collimator and pinhole collimator showed ...
Jos van der Sloten, Pascal Verdonck, Marc Nyssen, 2009
