part of the procedure, surgeons connect the patient's major arteries and veins
to those from a donor face to ensure healthy circulation in the transplanted
tissue. Because the technology is new, not much is known about the vascular
changes that help blood penetrate into the transplanted tissue.
Arteries and veins
The CTA technology offers imaging over 16cm of
coverage, enabling the researchers to view collateralisation, a process in
which the body stimulates existing blood vessels to elongate, widen and form
"We have found that since the vessels more commonly associated with the
back of the head are critical to maintain the vascular reorganisation.”
The authors note that the findings could help improve surgical planning and
assessment of potential complications in face transplant patients.
(Information from EurekAlert.org)