Systems and methods to identify interventional instruments
Systems and methods which operate to identify interventional instruments and/or other objects in images are shown. Embodiments operate to extract relevant information regarding interventional instruments from a multi-dimensional volume for presenting the information to a user in near real-time with little or no user interaction. Objects may be identified by segmenting a multi-dimensional volume, identifying a putative object of interest in multiple multi-dimensional volume segments, and determining a position of the object of interest within the multi-dimensional volume using the putative object of interest segment identifications. Identification of objects of interest according to embodiments may be utilized to determine an image plane for use in displaying the objects within a generated image, to track the objects within the multi-dimensional volume, etc., such as for medical examination, interventional procedures, diagnosis, treatment, and/or the like.
1. An ultrasound imaging system comprising:
an ultrasound transducer operable to collect image data including data from an interventional instrument;
an imaging processor operable to
generate a multi-dimensional dataset using said image data;
determine location and orientation information for the interventional instrument in said multi-dimensional dataset by
selecting a virtual camera position and orientation for each of two or more two-dimensional projected planes;
generating a projected image for each of the virtual camera positions and orientations;
detecting lines in at least one of the projected images that represent a projection of the interventional instrument onto the two-dimensional projected planes; and
determining location and orientation information for the interventional instrument based on the detected lines in the at least one of the projected images; and
a display operable to display the determined location and orientation of said interventional instrument.
2. The system of claim 1 , wherein said ultrasound transducer comprises a transducer selected from the group consisting of:
a piezoelectric transducer;
a capacitive micro-machined ultrasonic transducer (CMUT);
a piezoelectric micro-machined ultrasonic transducer (PMUT);
a wobbler transducer;
a 1D matrix array transducer;
a 1.5D matrix array transducer;
a 1.75D matrix array transducer;
a 2D matrix array transducer;
a linear array transducer; and
a curved array transducer.
3. The system of claim 1 , wherein said system comprises:
front-end circuitry coupled to said imaging tool;
a mid-processor disposed in a signal path between said front-end circuitry and said image processor and operable to provide signal and image processing with respect to said image data; and
a back-end processor coupled to said signal path, said back-end processor comprising said imaging processor.
4. The system of claim 3 , wherein said front-end circuitry comprises:
a transmitter to drive said imaging tool; and a beamformer for transmit and receive signals.
5. The system of claim 1 , wherein said multi-dimensional dataset comprises a volume having at least 3 spatial dimensions.
6. The system of claim 1 , wherein said interventional instrument is selected from the group consisting of:
a needle;
a catheter;
a stent; and
a surgical tool.