Roach Formulas
Simple equations for estimating the risk of seminal vesicle invasion, lymph node involvement and capsular penetration were derived from a nomogram published by Partin et al. demonstrating the value of combining the pre-treatment prostate specific antigen and Gleason Score in predicting the risk of seminal vesicle invasion, lymph node involvement, and capsular penetration for patients with clinically localized prostate cancer.
  • The risk of positive seminal vesicles (SV+) was calculated using the equation; SV+ = (PSA) + (10 * ((Gleason score) - 6)).
  • The risk of positive lymph nodes (LN+) was calculated using the equation; LN+ = (0.667 * (PSA)) + (10 * ((Gleason score) - 6))
  • The risk of positive capsular penetration (CP+) was calculated using the equation; CP+ = (1.5 * (PSA)) + (10 * ((Gleason score) - 3))

 
Research authors: Mack Roach III
Version: 1.3
  • Details
  • Save input
  • Load input

Calculate the result

Set more parameters to perform the calculation
Calculating......
Calculation error. Please check the model..

Conditional information

{{ file.classification }}
PRO
Note
Notes are only visible in the result download and will not be saved by Evidencio

This model is provided for educational, training and information purposes. It must not be used to support medical decision making, or to provide medical or diagnostic services. Read our full disclaimer.

Underlying models Part of
Comments
Comment
Please enter a comment
Comments are visible to anyone

Model feedback

No feedback yet 1 Comment {{ model.comments.length }} Comments
On {{ comment.created_at }} {{ comment.user.username }} a no longer registered author wrote:
{{ comment.content }}
Evidencio v3.24 © 2015 - 2024 Evidencio. All Rights Reserved