A catheter assembly for an ultrasound system may include an integrated pullback mechanism. For example, the catheter assembly includes a first expandable portion, a second expandable portion, a distal grip coupling one of the first or second expandable portion to the distal sheath of the distal section, A telescopic pullback section having a proximal grip coupled to the other of the first or second telescopic section so as to be retractable into the second telescopic section and a sensor for locating the first telescopic section For example. Another example includes a sensor and a pullback slider mechanism including a housing defining a slit, a coupler disposed within the housing, and a slider handle extending into the slit and coupled to the coupler . In another example, the coupler and housing can be gripped and slid relative to one another.
