A system for delivering an implant into the vasculature, the system comprising: a) a device for delivering an implant into the vasculature comprising: an outer sheath defining a center lumen that leads to a distal opening, the outer sheath comprising an imaging element configured to at least partially surround the center lumen such that an implant is deployable through the imaging element, wherein the imaging element is positioned on or formed as part of an outer surface of a distal end of the outer catheter sheath; an inner sheath disposed within the center lumen such that movement of one of the sheaths relative to the other one of the sheaths deploys the implant through the distal opening of the outer sheath; wherein the outer sheath further comprises a pressure sensor adapted to measure pressure within the vasculature and a flow sensor adapted to measure the velocity of flow through the vasculature, wherein the pressure and flow sensors are located on a distal portion of the outer sheath distal or proximal to the imaging element and are positioned on or formed as part of the outer surface of the outer sheath; and a connector fitting attached to a proximal portion of the device; and b) an operating system providing a means to transmit electricity and receive data from the imaging elements and the pressure and flow sensors of the delivery device, wherein through the connector fitting and via a cable the imaging element and the pressure and flow sensors are operably coupled to the operating system, wherein the system is configured to compare the measured pressure and velocity of flow to determine an index of resistance of flow within the vasculature. a) a device for delivering an implant into the vasculature comprising: an outer sheath defining a center lumen that leads to a distal opening, the outer sheath comprising an imaging element configured to at least partially surround the center lumen such that an implant is deployable through the imaging element, wherein the imaging element is positioned on or formed as part of an outer surface of a distal end of the outer catheter sheath; an inner sheath disposed within the center lumen such that movement of one of the sheaths relative to the other one of the sheaths deploys the implant through the distal opening of the outer sheath; wherein the outer sheath further comprises a pressure sensor adapted to measure pressure within the vasculature and a flow sensor adapted to measure the velocity of flow through the vasculature, wherein the pressure and flow sensors are located on a distal portion of the outer sheath distal or proximal to the imaging element and are positioned on or formed as part of the outer surface of the outer sheath; and a connector fitting attached to a proximal portion of the device; and an outer sheath defining a center lumen that leads to a distal opening, the outer sheath comprising an imaging element configured to at least partially surround the center lumen such that an implant is deployable through the imaging element, wherein the imaging element is positioned on or formed as part of an outer surface of a distal end of the outer catheter sheath; an inner sheath disposed within the center lumen such that movement of one of the sheaths relative to the other one of the sheaths deploys the implant through the distal opening of the outer sheath; wherein the outer sheath further comprises a pressure sensor adapted to measure pressure within the vasculature and a flow sensor adapted to measure the velocity of flow through the vasculature, wherein the pressure and flow sensors are located on a distal portion of the outer sheath distal or proximal to the imaging element and are positioned on or formed as part of the outer surface of the outer sheath; and a connector fitting attached to a proximal portion of the device; and b) an operating system providing a means to transmit electricity and receive data from the imaging elements and the pressure and flow sensors of the delivery device, wherein through the connector fitting and via a cable the imaging element and the pressure and flow sensors are operably coupled to the operating system,