Tissue ablation device with photoacoustic lesion formation feedback
AssigneeKoninklijke Philips N.V.
InventorsRobert Manzke, Raymond Chan, Ladislav Jankovic, Daniel R. Elgort, Khalid Shahzad
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Abstract
A tissue ablation device employs one or more energy emitters (21) and one or more photoacoustic sensors (22) in a cooperative arrangement for applying a tissue ablation therapy to a tissue (60). In operation, the energy emitters (21) emit a tissue ablation beam (TA) into a target portion of the tissue (60) to form a lesion (61) therein, and alternatively or concurrently emit a photoexcitation beam (PE) into the target portion of the tissue (60) to excite a photoacoustic response from the tissue (60). The photoacoustic sensor(s) (22) sense the photoacoustic response of the tissue (60).
Claims15
A tissue ablation device, comprising:
- at least one energy emitter (21) and at least one photoacoustic sensor (22) in a cooperative arrangement for applying a tissue ablation therapy to a tissue (60);
- wherein the at least one energy emitter (21) is operable to emit a tissue ablation beam (TA) into a target portion of the tissue (60) to form a lesion (61) therein;
- wherein the at least one energy emitter (21) is further operable to emit a photoexcitation beam (PE) into the target portion of the tissue (60) to excite a photoacoustic response from the tissue (60);
- and
- wherein the at least one photoacoustic sensor (22) is operable to sense the photoacoustic response of the tissue (60) to facilitate a generation of a photoacoustic image of the lesion (61) as formed in the tissue (60).
A tissue ablation system, comprising:
- a tissue ablation therapy control system;
- and
- a tissue ablation device (20) including:
- at least one energy emitter (21) and at least one photoacoustic sensor (22) in a cooperative arrangement for applying a tissue ablation therapy to a tissue (60);
- wherein the at least one energy emitter (21) is controllable by the tissue ablation therapy control system to emit a tissue ablation beam (TA) into a target portion of the tissue (60) to form a lesion (61) therein;
- wherein the at least one energy emitter (21) is further is controllable by the tissue ablation therapy control system to emit a photoexcitation beam into the target portion of the tissue (60) to excite a photoacoustic response from the tissue (60);
- and
- wherein the at least one photoacoustic sensor (22) is operable to sense the photoacoustic response of the tissue (60) to facilitate a generation of a photoacoustic image of the lesion (61) as formed in the tissue (60) by the tissue ablation therapy control system.
A method of performing a tissue ablation therapy of a tissue (60), the method comprising:
- emitting a tissue ablation beam (TA) into the tissue (60), wherein a lesion (61) is formed in the tissue (60);
- emitting a photoexcitation beam (PE) into the tissue (60), wherein a photoacoustic response is generated within the tissue (60);
- sensing the photoacoustic response of the tissue (60);
- and
- generating and monitoring a photoacoustic image of the lesion (61) as formed in the tissue (60) in response to the sensing of the photoacoustic response of the tissue (60).
Dependencies are inferred from the claim text.