An evaluation of scintillation camera tomography
| Autor: | V L McManaman, M D Sinclair |
|---|---|
| Rok vydání: | 1974 |
| Předmět: |
Scintillation
Radiological and Ultrasound Technology Computer science business.industry Rectilinear scanner ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Collimator law.invention Optics law Calibration Radiology Nuclear Medicine and imaging Tomography Sensitivity (control systems) business |
| Zdroj: | Physics in Medicine and Biology. 19:261-261 |
| ISSN: | 0031-9155 |
| Popis: | Factors for optimizing the quality of scintillation camera tomographic data for a commercial instrument were discussed. Phantom studies were conducted to compare the limits of tumour detectability for various tumour/tissue activity ratios at various depths for the tomography unit, the high resolution collimator and the rectilinear scanner. Line spread functions and modulation transfer functions for the tomography unit are compared to those for the high resolution and high sensitivity collimators. Advantages and disadvantages of scintillation camera tomography devices and rectilinear scanners were discussed. Data support the need for such a focusing capability in addition to the scintillation camera. Consideration was also given to these two focusing systems in the light of the information provided by the computerized data handling capability for standard scintillation camera imaging. A method was presented to measure quickly and accurately the calibration of a tomography unit. |
| Databáze: | OpenAIRE |
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