Strum Tumor Volume Calculation

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defender3
Regular Member


Date Joined Nov 2009
Total Posts : 98
   Posted 12/8/2009 8:14 PM (GMT -6)   
I started looking for the formula JohnT mentioned in a post and finally located Strum's volume calculator using the internet way back machine since PCRI doesn't currently have it linked. FWIW, here's where I fall according to the calculator:


Patient name D 3
Enter Date------------------- > 12/8/2009 Enter Gleason Score Right lobe ----> 3 Tumor Volume (TV) at RP
Enter Total PSA ----------- > 8.7 Enter cores positive Right lobe ----> 4 and Cure Post RP after Stamey et al.
Enter Trusp Volume----- > 32 Enter Gleason Score Left lobe ----- > 3 TV at RP # pts. # cured % cured
Volume fraction of cancer -> 0.02 Enter cores positive Left lobe ---- > 0 <.5 cc’s 17 16 94
PC volume calculated------- > 0.49 .5-2 cc 91 73 80
PSA benign ------------------ > 2.112 GS R x # cores positive on right --- > 12 2.0-6.0 129 65 50
PSA PC specific -----------> 6.588 GS L x # cores positive on left -- --- > 0 6.1-12 49 11 22
Organ Confined PC probabilty: 90% Total of above 2 items ---------------- > 12 >12 32 2 6
Predicted 20 mo. Post-RT freedom Total # of positive cores ------------ > 4 Totals 318 167
from PSA Failure Weighted G score ------ > 3
by calculated volume --------------- > 92% Weighted G grade ------ > 1.50
by volume fraction ------------------ > 88% PSA Leak into serum --- > 13.33
Fill in name, date and the yellow cells only. All other values will be calculated for you.
Formulas based on the following four papers:
Aihara M, Lebovitz R, Wheeler T, et al: Prostate specific antigen and Gleason grade: an immunohistochemical examination of prostate cancer. J. Urol. 151:1558-1564, 1994.
D'Amico A, Propert K: Prostate cancer volume adds significantly to prostate-specific antigen in the prediction of early biochemical failure after external beam radiation therapy
Int J Radiation Oncology Biol Phys 35:273-279, 1996.
D'Amico A, Chang H, Holupka E, et al: Calculated prostate predictor of actual cancer volume: the optimal volume and pathological stage Urology 49: 385-391, 1997.
Stamey, TA, McNel JE, Yemoto CM, Sigal BM, Jhnstone IM: Biological determinants of cancer progression in men with prostate cancer. JAMA 281:1395-1400, 1999.
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