In Vivo Oncology
Tumor Volume & Doubling Time (DT)
Volume (mm³) = 0.52 × Length × Width²; Doubling Time (days) = [ln(2) × Δt] / ln(V2 / V1)
Target Output: Doubling Time (DT)[SOLVED]
5
daysTumor volume doubling time
mm
Longest diameter of the tumor
mm
Shortest diameter of the tumor
mm³
Starting tumor volume
mm³
Ending tumor volume (or derive from L/W)
days
Time between measurements
💡 What This Is Useful For: Evaluating tumor growth kinetics and assessing response to therapies in in vivo oncology models.
📐 Real-World Worked Example: A tumor grows from 100 mm³ to 400 mm³ in 10 days. DT = (ln(2) * 10) / ln(400 / 100) = (0.693 * 10) / 1.386 = 5 days.
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Scientifically reviewed by:D Yap, MBiochem (Oxon), DIC, PhD (Lond)
Clinical Medicine Research Scientist·LinkedIn Profile ↗·ORCID: 0000-0002-5370-4592 ↗
⚠️ Research Reference Notice: For reference and research education only. Reviewer is a clinical medicine research scientist and not a practicing physician or veterinarian, and does not provide clinical certification or medical advice. Experimental drug doses and clinical measurements must be verified against institutional protocols, primary manufacturer labeling, and physician orders.