An apparatus includes a cylindraceous sleeve body, a navigation sensor, and aninterface feature.The cylindraceous sleeve body includes an open proximal end, an open distalend, and a lumenextending from the open proximal end to the open distal end. The lumen issized and configuredto receive a shaft of a medical instrument. The navigation sensor ispositioned at the open distalend of the cylindraceous sleeve body. The interface feature is configured tocouple thenavigation sensor with an image guidance system. The navigation sensor isconfigured tocooperate with an image guidance system to provide feedback indicating aposition of thenavigation sensor in three-dimensional space.
