Enter the ultrasound score, menopausal status, and serum CA125 level into the calculator to determine the RMI.
Rmi (Risk Of Malignancy Index) Formula
The following formula is used to calculate the Risk of Malignancy Index (RMI).
RMI = U * M * CA125
Variables:
- RMI is the Risk of Malignancy Index
- U is the ultrasound score
- M is the menopausal status (1 for premenopausal, 3 for postmenopausal)
- CA125 is the serum CA125 level (U/ml)
To calculate the Risk of Malignancy Index, multiply the ultrasound score by the menopausal status, then multiply the result by the serum CA125 level.
What is a Rmi (Risk Of Malignancy Index)?
The Risk of Malignancy Index (RMI) is a scoring system used in gynecology to assess the risk of ovarian cancer in women presenting with an ovarian cyst or mass. It combines three diagnostic components: the ultrasound score, menopausal status, and serum CA-125 level (a blood protein that is often higher in women with ovarian cancer). The RMI is calculated by multiplying these three factors together, with a higher score indicating a higher risk of malignancy.
How to Calculate Rmi (Risk Of Malignancy Index)?
The following steps outline how to calculate the Risk of Malignancy Index (RMI) using the given formula:
- First, determine the ultrasound score (U).
- Next, determine the menopausal status (M). Assign a value of 1 for premenopausal or 3 for postmenopausal.
- Next, determine the serum CA125 level (CA125) in U/ml.
- Next, use the formula RMI = U * M * CA125 to calculate the Risk of Malignancy Index.
- Finally, insert the values of U, M, and CA125 into the formula and calculate the RMI.
Example Problem:
Use the following variables as an example problem to test your knowledge:
ultrasound score (U) = 4
menopausal status (M) = 3
serum CA125 level (CA125) = 120 U/ml
