Ichvolume Calculator
Estimate your ichvolume with our free cardiovascular system calculator. See reference ranges, risk factors, and next-step guidance.
Reviewed by Rahul Singh, Health & Wellness Specialist
Formula
Volume = (A x B x C) / 2
Where A = longest hemorrhage diameter on the CT slice with the largest area of hemorrhage, B = longest diameter perpendicular to A on the same slice, and C = approximate depth calculated by multiplying slice thickness by the number of slices with hemorrhage. All measurements are in centimeters, yielding volume in cubic centimeters (mL).
Worked Examples
Example 1: Moderate Basal Ganglia Hemorrhage
Problem:A 65-year-old patient presents with a left basal ganglia hemorrhage. CT scan measurements show A = 5 cm, B = 4 cm, C = 3 cm. Calculate the hematoma volume.
Solution:Using the ABC/2 formula:\nVolume = (A x B x C) / 2\nVolume = (5 x 4 x 3) / 2\nVolume = 60 / 2\nVolume = 30 mL\n\nThis falls at the threshold between moderate and moderate-large hemorrhage categories.
Result:ICH Volume: 30 mL | Category: Moderate | 30-day Mortality Risk: 20-50%
Example 2: Small Lobar Hemorrhage
Problem:A 72-year-old patient has a right frontal lobar hemorrhage. CT measurements: A = 3 cm, B = 2.5 cm, C = 2 cm. Determine volume and prognosis.
Solution:Using the ABC/2 formula:\nVolume = (A x B x C) / 2\nVolume = (3 x 2.5 x 2) / 2\nVolume = 15 / 2\nVolume = 7.5 mL\n\nThis is classified as a small hemorrhage with generally favorable prognosis.
Result:ICH Volume: 7.5 mL | Category: Small | 30-day Mortality Risk: < 20%
References
Reviewed by Rahul Singh, Health & Wellness Specialist · Editorial policy