xDSL - Computer Definition. Referring to any of a group of broadband digital access technologies operating over embedded unshielded twisted pair (UTP) telco local loops. xDSL technologies employ sophisticated compression algorithms and multiplexing techniques to derive performance that often exceeds 1 Mbps over a voice grade local loop. Most DSL technologies support simultaneous voice and high speed Internet access, and a number support video, as well.
Osseous structures means bony structures and in thorax it includes ribs,vertebra, clavicle. It is normal in your case. There is no abnormality in bones. There is some problem in perfusion study and in your case it is due to ischemic(decreased blood supply to part of heart)insult.
The skeletal system forms the mechanical framework of the body (see for example bones of the head and neck and bones of the hands and feet). The bones themselves are formed from several different connective tissues, including: 1  Bone (called  Osseous ) tissue,2  Periosteum, 3  Red Bone Marrow, 4  Yellow Bone Marrow, and.bove: Diagram illustrating the Structure of Long Bones. There are two main types of bone tissue, compact bone and spongy bone. Individual bones in the body can be formed from both of these types of bone tissue. The diagram on the right shows the physical structure of a typical  long bone .