How does magnification affect image quality and patient dose in digital subtraction angiography?

Nikolaos A. Gkanatsios; Walter Huda; Keith R. Peters M.D.

doi:10.1117/12.430927

28 June 2001 How does magnification affect image quality and patient dose in digital subtraction angiography?

Nikolaos A. Gkanatsios, Walter Huda, Keith R. Peters M.D.

Proceedings Volume 4320, Medical Imaging 2001: Physics of Medical Imaging; (2001) https://doi.org/10.1117/12.430927
Event: Medical Imaging 2001, 2001, San Diego, CA, United States

Abstract

Digital subtraction angiography images were obtained of a phantom containing 1 mm diameter vessels. The iodine concentrations ranged from 5 to 50 mg/cc, which permitted the detection threshold iodine concentration to be determined. The source to image receptor distance was 105 cm, and image magnification was varied between 1.15 and 2.0. One experiment was performed at an input exposure of 1 (mu) Gy per frame, and a second experiment was performed at 4 (mu) Gy per frame.

Citation Download Citation

Nikolaos A. Gkanatsios, Walter Huda, and Keith R. Peters M.D. "How does magnification affect image quality and patient dose in digital subtraction angiography?", Proc. SPIE 4320, Medical Imaging 2001: Physics of Medical Imaging, (28 June 2001); https://doi.org/10.1117/12.430927

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