Image-guided high intensity focused ultrasound and related apparatus and methods
Apparatus and methods are described that include ultrasound imaging devices, which may operate in a transmissive ultrasound imaging modality, and which may be used to detect properties of interest of a subject such as index of refraction, density and/or speed of sound. Devices suitable for performing high intensity focused ultrasound (HIFU), as well as HIFU and ultrasound imaging, are also described.
1. A method, comprising:
displaying a volumetric image of a subject three dimensionally via a three-dimensional (3D) display;
in response to receiving a selection, extracting and displaying via the 3D display a 3D subvolume of the volumetric image and maintaining registration between the 3D subvolume and the volumetric image;
receiving input identifying at least one target point in the 3D subvolume corresponding to at least one location in the subject; and
subsequent to receiving the input identifying the at least one target point, initiating a process of applying high intensity focused ultrasound (HIFU) energy to the at least one location in the subject.
2. The method of claim 1 , wherein said receiving input comprises receiving the input from a user at least in part by detecting motion of the user and/or or motion of a pointing device of the user through the 3D subvolume.
3. The method of claim 1 , wherein the at least one target point comprises a plurality of target points in the 3D subvolume corresponding to a plurality of locations along a path through the subject.
4. The method of claim 1 , further comprising calculating at least one HIFU control parameter controlling application of the HIFU energy to the at least one location in the subject.
5. The method of claim 4 , wherein calculating the at least one HIFU control parameter is performed based at least in part on a specified amount of energy and/or power to apply to the at least one location in the subject.
6. The method of claim 5 , further comprising receiving input from a user specifying the specified amount of energy and/or power to apply to the at least one location in the subject.
7. The method of claim 4 , wherein the at least one HIFU control parameter specifies how to focus the HIFU energy to obtain a focused HIFU beam.
8. The method of claim 7 , wherein performing said calculating comprises using a beamforming technique.
9. The method of claim 7 , wherein performing said calculating comprises using a time-reversal technique.
10. The method of claim 1 , wherein the 3D display is a lenticular display.
11. The method of claim 1 , wherein displaying the volumetric image comprises applying stereoscopic conversion to the volumetric image to obtain a first stereoscopic image and a second stereoscopic image and displaying three-dimensionally, via the 3D display, the first stereoscopic image and the second stereoscopic image.