Left fourth rib: volume in real people

The volume of this structure (left fourth rib) measured on the CT scans of 12 people: from 4.2 to 25 mL, median 13 mL.

Person Sex Age Volume (mL)
1 Female 77 15
2 Male 58 14
3 Male 62 25
4 Female 41 9.5
5 Female 58 10
6 Female 93 12
7 Male 73 25
8 Male 9 9.6
9 Male 33 14
10 Female 21 13
11 Male 15 12
12 Female 5 4.2
Median 13

left fourth rib

Left fourth rib: volume in real people
3D models: TotalSegmentator CT dataset v3.0.0, subject s0462: Wasserthal J, Breit H-C, Meyer MT, et al. TotalSegmentator: Robust Segmentation of 104 Anatomic Structures in CT Images. Radiology: Artificial Intelligence 2023;5(5):e230024, https://doi.org/10.1148/ryai.230024; dataset https://doi.org/10.5281/zenodo.22688904, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/); surfaces extracted from the segmentation masks and simplified by the 3D Anatomy project.