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Evolution of electronics
Physicists and clinicians
B R PULLAN
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activity analysis aorta application approximately arterial attenuation beam becomes blood body calculated capillary cardiac cause cells chamber circulation clinical compliance concentration considered constant correction counting cross-section curve decrease depends described detector determined direction display distribution effect electrode energy equal equation example filter flow fluid frame frequency function give given heart impedance important increase input interval Italy lung material mean measured membrane method mmHg muscle normal object observed obtained occur output oxygen patient peripheral photons physics position possible practice present pressure produce projections pulse range ratio recorded reference region relative represents resistance response sample segment selected shown in fig shows signal simple studies technique tissues tube unit various venous ventricle volume wall wave X-ray zero