Optimisation of Source to Image Distance in Diagnostic Radiology » książka
Optimisation of Source to Image Distance in Diagnostic Radiology
ISBN-13: 9783639129335 / Angielski / Miękka / 2009 / 200 str.
This study aimed to determine the optimum source to image distance (SID) for key radiographic projections, in diagnostic radiology. Three secondary aims were to determine the effect of changes in SID on the amount of scattered radiation at the image receptor, to determine the effect of changes in SID on the radiation dose to the patient and to assess any effects of changes in SID on the quality of the images. The study was performed using Monte Carlo simulation, employing EGSnrcMP and PCXMC. The Monte Carlo codes were benchmarked against independent experimental studies and shown to give excellent agreement. The conclusion was that for imaging of the trunk, other than the chest, the use of an SID of 150 cm will enable optimization of doses to patients. To optimize image quality and patient dose, a number of recommendations are made for technological improvements and for clinical practice.
This study aimed to determine the optimum source toimage distance (SID) for key radiographicprojections, in diagnostic radiology. Threesecondary aims were to determine the effect ofchanges in SID on the amount of scattered radiationat the image receptor, to determine the effect ofchanges in SID on the radiation dose to the patientand to assess any effects of changes in SID on thequality of the images. The study was performed usingMonte Carlo simulation, employing EGSnrcMP and PCXMC.The Monte Carlo codes were benchmarked againstindependent experimental studies and shown to giveexcellent agreement. The conclusion was that forimaging of the trunk, other than the chest, the useof an SID of 150 cm will enable optimization of dosesto patients. To optimize image quality and patientdose, a number of recommendations are made fortechnological improvements and for clinical practice.
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