Abstract
Ultrasonography is based on the component interpretation of ultrasonic images of the patients organ. Factors enabling a correct diagnosis are of qualitative character, mainly, because in the first place they depend on the experience of the specialist performing the examination. However, a necessity of describing certain quantities with numbers appeared already in the early stages of development of ultrasonography. This need becomes more and more apparent and even essential in certain domains of ultrasonography where Doppler techniques are applied.References
[1] AIUM. Bioeffects considerations for the safety of diagnostic ultrasound, J. Ultrasound in Medicine, 7, 9 (1988) Suplement S. 3 and 8. 35.
[2] K. BRODZIŃSKI, L. FILIPCZYŃSKI, A. NOWICKI, T. POWAŁOWSKI, Quantitative transcutaneous measurements of blood flow in carotid artery by means of pulse and continuous wave Doppler methods, Ultrasound in Medicine and Biology, 2, 3, 189-193 (1976).
[3] L. DONALD, MAC VICAR, T. G. BROWN, Investigation of abdominal masses by pulsed ultrasound, The Lancet 1168-1195 (1958).
[2] K. BRODZIŃSKI, L. FILIPCZYŃSKI, A. NOWICKI, T. POWAŁOWSKI, Quantitative transcutaneous measurements of blood flow in carotid artery by means of pulse and continuous wave Doppler methods, Ultrasound in Medicine and Biology, 2, 3, 189-193 (1976).
[3] L. DONALD, MAC VICAR, T. G. BROWN, Investigation of abdominal masses by pulsed ultrasound, The Lancet 1168-1195 (1958).
