학술논문
Estimates of Breast Cancer Growth Rate and Sojourn Time from Screening Database Information
Document Type
Article
Author
Source
Journal of Women's Imaging; February 2003, Vol. 5 Issue: 1 p11-19, 9p
Subject
Language
ISSN
1084824X; 15360245
Abstract
A new method has been developed that can be used to estimate tumor growth rate from information on the numbers and sizes of breast cancers found at screening. With use of this method and information available for the tumors seen over the last decade at the Breast Imaging Division at the Massachusetts General Hospital (MGH), it appears that the median doubling time for invasive breast cancer is approximately 130 days. From this doubling time value, together with information on the sizes at which breast cancers become detectable on clinical grounds and by screening, it appears that the mean and median sojourn times for invasive breast cancers in the MGH population are approximately 1.7 and 1.3 years, respectively.