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  • Title: Digital subtraction angiography system evaluation with phantoms.
    Author: Wenstrup RS, Sweeney KP, Scholz FJ.
    Journal: Radiology; 1985 Jun; 155(3):805-9. PubMed ID: 3890013.
    Abstract:
    Advances in digital subtraction angiography imaging demonstrate the need for critical evaluation of the performance of digital subtraction equipment. The design of a phantom set for noninvasive assessment of the imaging quality of digital subtraction equipment is described; components include a remotely controlled transport system and individual patterns to evaluate the contrast and detail properties of the image intensifier, low-contrast sensitivity and resolution of the system, geometric distortion of image, linearity, mechanical and electronic stability of equipment, and effects of bone and bowel gas on iodine perception. The performance of an add-on digital radiographic system is presented, along with radiation exposure levels at the image intensifier for a range of radiographic techniques.
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