Proceedings of the International School of Physics "Enrico Fermi.", Volume 76N. Zanichelli, 1981 - Nuclear physics |
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Page 8
... considered initially and the results later generalized to two - dimensional images . A point input i ( x ) can be considered to be a delta - function . This will be imaged as a function o ( x ) ( fig . 2 ) . The image function will , in ...
... considered initially and the results later generalized to two - dimensional images . A point input i ( x ) can be considered to be a delta - function . This will be imaged as a function o ( x ) ( fig . 2 ) . The image function will , in ...
Page 22
... considered in more detail . 22.1 . Iterative methods . A large number of iterative methods have been described [ 3 , 6 , 7 ] . The algorithm which was used in the first E.M.I. scan- ner was a form of A.R.T. , arithmetic reconstruction ...
... considered in more detail . 22.1 . Iterative methods . A large number of iterative methods have been described [ 3 , 6 , 7 ] . The algorithm which was used in the first E.M.I. scan- ner was a form of A.R.T. , arithmetic reconstruction ...
Page 500
... considered to be exclusively compart- mental if it satisfies the above conditions and , furthermore , the flux of material from one compartment to another depends in a linear or nonlinear manner solely upon the mass or concentration of ...
... considered to be exclusively compart- mental if it satisfies the above conditions and , furthermore , the flux of material from one compartment to another depends in a linear or nonlinear manner solely upon the mass or concentration of ...
Contents
A R D THORNTON | 1 |
Physicists and clinicians | 5 |
The Fourier transform properties of an image | 12 |
Copyright | |
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alveolar amplitude analysis aorta aortic approximately arterial pressure arterial system attenuation value basilar membrane beam blood flow blood pressure C₁ capillary cardiac output circulation clinical cm³ CO₂ cochlea cochlear compartment compliance components computed tomography concentration constant counting rate cross-section cuff decrease detector diameter diastolic distribution effect elastin electrode energy equation filter fluid Fourier transform frame frequency function haemoglobin hair cells halothane heart rate impulse response increase left heart linear linear-attenuation coefficient lung manometer measured medical physics membrane method mmHg muscle normal obtained oxygen P₁ P₂ pacemaker patient peripheral resistance photons physicist physiological pulmonary pulsatile pulse ratio region Rendiconti S.I.F. sample scan scanner segment shown in fig shows signal stroke volume systolic techniques tissues transducer transmural pressure tube ultrasonic V₁ velocity venous system ventilation ventricle ventricular vessel viscoelastic volume wall wave form Windkessel X-ray zero