Method, system and apparatus for automatically evaluating resection accuracy

Patent metadata

Field	Value
Publication number	US-10026174-B2
Application number	US-201515535227-A
Country	US
Kind code	B2
Filing date	Jan 7, 2015
Priority date	Jan 7, 2015
Publication date	Jul 17, 2018
Grant date	Jul 17, 2018

Abstract

A method of automatically evaluating resection accuracy, is provided. The method includes preoperatively obtaining a first image of a volume of patient tissue using an imaging modality configured according to a scanning parameter, and storing the scanning parameter. An identifier of a target region corresponding to a target portion of the volume is received and stored in association with the first image. A second image is obtained of a resected tissue sample from the volume, using the imaging modality configured according to the scanning parameter. Based on a comparison of the first image and the second image, a determination is made whether the entire target region is represented in the second image. The method includes controlling an output device to present an indication, based on the determination, of whether the tissue sample contains the entire target portion.

First claim

We claim:

1. A method of automatically evaluating resection accuracy, comprising:
preoperatively obtaining a first image of a volume of patient tissue using an imaging modality configured according to a scanning parameter, wherein obtaining the first image comprises sending an instruction including the scanning parameter to a first imaging device, and wherein the first imaging device is a first MRI scanner; the scanning parameter defining a first imaging protocol implemented with the first imaging modality to acquire the first image;
storing the scanning parameter in a memory;
receiving and storing, in association with the first image, an identifier of a target region corresponding to a target portion of the volume;
responsive to resection of a tissue sample from the volume, obtaining a second image of the tissue sample using the imaging modality configured according to the scanning parameter for implementing the first imaging protocol to acquire the second image, wherein obtaining the second image comprises sending an instruction including the scanning parameter to a second imaging device, and wherein the second imaging device is a second MRI scanner;
determining, based on a comparison of the first image and the second image, whether the entire target region is represented in the second image; and
controlling an output device to present an indication, based on the determination, of whether the tissue sample contains the entire target portion.

2. The method of claim 1 , wherein the determining includes registering the second image to the first image.

3. The method of claim 1 , wherein the second image is obtained intraoperatively.

4. The method of claim 1 , wherein the second image is obtained postoperatively.

5. The method of claim 1 , wherein the target portion is a tumor.

6. The method of claim 1 , further comprising:
receiving, from a tracking system, a plurality of locations of a surgical instrument within the volume of patient tissue;
computing a tracked portion of the volume encompassed by the locations;
assessing whether the target portion is contained within the tracked portion; and
controlling the output device to present the indication based on the determining and the assessing.

7. A computing device for automatically evaluating resection accuracy; comprising:
a memory;
an output device; and
a processor interconnected with the memory and the output device, the processor configured to:
preoperatively obtain a first image of a volume of patient tissue using an imaging modality configured according to a scanning parameter, by sending an instruction including the scanning parameter to a first imaging device, wherein the first imaging device is a first MRI scanner; the scanning parameter defining a first imaging protocol implemented with the first imaging modality to acquire the first image;
store the scanning parameter in the memory;
receive and store, in association with the first image, an identifier of a target region corresponding to a target portion of the volume;
responsive to resection of a tissue sample from the volume, obtain a second image of the tissue sample using the imaging modality configured according to the scanning parameter for implementing the first imaging protocol to acquire the second image, by sending an instruction including the scanning parameter to a second imaging device, wherein the second imaging device is a second MRI scanner;
determine, based on a comparison of the first image and the second image, whether the entire target region is represented in the second image; and
control the output device to present an indication, based on the determination, of whether the tissue sample contains the entire target portion.

8. The computing device of claim 7 , the processor further configured to determine whether the entire target region is represented in the second image by registering the second image to the first image.

9. The computing device of claim 7 , the processor further configured to obtain the second image intraoperatively.

10. The computing device of claim 7 , the processor further configured to obtain the second image postoperatively.

11. The computing device of claim 7 , wherein the target portion is a tumor.

12. The computing device of claim 7 , the processor further configured to:
receive, from a tracking system, a plurality of locations of a surgical instrument within the volume of patient tissue;
compute a tracked portion of the volume encompassed by the locations;
assess whether the target portion is contained within the tracked portion; and
control the output device to present the indication based on the determining and the assessing.

13. The computing device of claim 7 , wherein the output device includes a display.

Assignees

• Piron Cameron Anthony
• Panther Alex
• Synaptive Medical Barbados Inc

Inventors

• Piron Cameron Anthony
• Panther Alex

Classifications

• A61B34/20

  Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis · CPC title

• A61B2576/026

  for the brain · CPC title

• G16H20/40

  relating to mechanical, radiation or invasive therapies, e.g. surgery, laser therapy, dialysis or acupuncture · CPC title

• G06T2207/30016

  Brain · CPC title

• A61B34/30

  Surgical robots · CPC title