Effects of kVp Variation And X-Ray Tube Filtration On The Mammographic Examination

S. Malik; M. E . Masterson; M. Hunt

doi:10.1117/12.936003

13 December 1983 Effects of kVp Variation And X-Ray Tube Filtration On The Mammographic Examination

S. Malik, M. E . Masterson, M. Hunt

Proceedings Volume 0419, Application of Optical Instrumentation in Medicine XI; (1983) https://doi.org/10.1117/12.936003
Event: Application of Optical Instrumentation in Medicine XI, 1983, Atlanta, United States

Abstract

Radiographs of a phantom containing excised breast tissue and idealized test objects embedded in tissue equivalent plastic have been obtained using a variety of mammographic film-screen detectors. A CGR Senographe (molybdenum target, beryllium window) was modified to accept a series of x-ray filters: 0.03 mm molybdenum, 0.5 mm aluminum or 1.2 mm aluminum. Radiographs were obtained at kVp's ranging from 26 to 32 kVp with the mAs adjusted to achieve the same optical density on the films. Entrance skin exposure was measured for the range of techniques from which dependence of mean gland dose on kVp was derived. Indices of image quality were also determined from the radiographs. A discussion of the effects of kVp variation on mammographic image quality, especially on low contrast discrimination is included.

Citation Download Citation

S. Malik, M. E . Masterson, and M. Hunt "Effects of kVp Variation And X-Ray Tube Filtration On The Mammographic Examination", Proc. SPIE 0419, Application of Optical Instrumentation in Medicine XI, (13 December 1983); https://doi.org/10.1117/12.936003

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