Difference between revisions of "Prostate-specific antigen"

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====A forumla for PSAD====
====A forumla for PSAD====
*Benson ''et al.'':<ref name=pmid1371554>{{cite journal |author=Benson MC, Whang IS, Pantuck A, ''et al.'' |title=Prostate specific antigen density: a means of distinguishing benign prostatic hypertrophy and prostate cancer |journal=J. Urol. |volume=147 |issue=3 Pt 2 |pages=815–6 |year=1992 |month=March |pmid=1371554 |doi= |url=}}</ref>
Benson ''et al.'':<ref name=pmid1371554>{{cite journal |author=Benson MC, Whang IS, Pantuck A, ''et al.'' |title=Prostate specific antigen density: a means of distinguishing benign prostatic hypertrophy and prostate cancer |journal=J. Urol. |volume=147 |issue=3 Pt 2 |pages=815–6 |year=1992 |month=March |pmid=1371554 |doi= |url=}}</ref>
:<math>PASD = \frac{serum PSA}{volume}</math>
:<math>PASD = \frac{serum PSA}{volume}</math>
*Where:
 
:<math>volume = \frac{1}{2} D1 x D2 x D3</math>
Where:
:<math>volume = \frac{1}{2} D1 \times D2 \times D3</math>.
:D1, D2, D3 are the major axes.
:D1, D2, D3 are the major axes.


Note:
Note:
*The volume of an ellipsoid is:
*The volume of an ellipsoid is:
::<math>\frac{4}{3}\pi D1 x D1 x D3</math>
::<math>\frac{4}{3}\pi D1 \times D1 \times D3</math>.


==See also==
==See also==
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