A total of 49 bones were segmented, comprising approximately 33% of the total skeletal volume [13].
Briefly, bone grafts were segmented from the diaphysis of tibiae, followed by the removal of periosteum and any adhering soft tissues.
Cortical bone edges were segmented from CT images (Aquilion, Toshiba, Tochigi, Japan) using commercial software (SliceOmatic, Tomovision, Montreal, CA, USA), and these point clouds were converted into polygonal surface models (Geomagic Studio, Raindrop Geomagic, NC, USA).
The bone tissue volume was segmented from air or soft tissue at a threshold of 800 mg-HA/cm3 to determine the porosity ( = 1 minus bone tissue volume per total bone volume) (Fig. 5).
To distinguish the cartilage from the bone, the selected slices were segmented by manually assigning the lower and upper thresholds to isolate the voxels within the cartilage peak, which unavoidably contained a few bone marrow voxels.
The human spine is called "the segmented bone," meaning it's a bone that the body recognizes as one bone, in the same way it recognizes, say, the femur (thigh) or humerus (biceps), but unlike those bones, it is segmented, a bone in parts, and those parts are called vertebrae.
For this purpose, the bone structures will be segmented in the post-operative CT data set.
By using 2 segments of mitochondrial DNA (mtDNA) hypervariable segment I (HVS-I) target, we determined the ancestry of the humans from whom the bones were derived (4 ).
Insertion and via points will be identified from partial segmentation of the MR data and described as co-ordinates on the bones segmented from the CT data.
