Before revision: A myograph can take several forms , including the pressure myograph , wire myograph and acceleromyograph .
After revision: A myograph can take several forms : for tubular structures such as blood vessels these include the pressure myograph (where a segment of a blood vessel is cannulated at either or both ends) and the wire myograph (where the blood vessel segment is threaded onto a pair of pins or wires); for skeletal muscle other devices such as the acceleromyograph can be used .