Quantitative Methods in Renography - Nucleus
Quantitative Methods in Renography - Nucleus
Quantitative Methods in Renography - Nucleus
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Three Phases of the Renogram<br />
Phase 1<br />
(Vascular)<br />
Phase 2<br />
(Uptake)<br />
Phase 3<br />
(Elim<strong>in</strong>ation)<br />
Textbooks<br />
3 phases<br />
Renogram model<br />
No vascular phase<br />
• Orig<strong>in</strong>ally renograms were acquired us<strong>in</strong>g probes<br />
• Without any means of background subtraction<br />
• The vascular phase was always present<br />
• The vascular phase is not part of the true renogram<br />
• With modern gamma camera techniques it should be<br />
removed by proper computer process<strong>in</strong>g<br />
Richard Lawson<br />
Central Manchester Nuclear Medic<strong>in</strong>e Centre
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