Judged: two independent readers; copy check clear.
segment
segment In this context, a segment is a named portion of an artery used to specify the exact section being measured or compared, such as the M1 part of the middle cerebral artery or the A1 part of the anterior cerebral artery.
In this context, a segment is a named portion of an artery used to specify the exact section being measured or compared, such as the M1 part of the middle cerebral artery or the A1 part of the anterior cerebral artery.