Simulator for breast imaging examinations

Patent metadata

Field	Value
Publication number	US-9639661-B2
Application number	US-201314027772-A
Country	US
Kind code	B2
Filing date	Sep 16, 2013
Priority date	Sep 16, 2013
Publication date	May 2, 2017
Grant date	May 2, 2017

Abstract

A system simulating the reviewing process of breast imaging examination (i.e. mammographic) information provides a data file of breast imaging information including mammographic (and other breast imaging examinations) images that may be scored by a trainee on computerized worksheet and expert assessments of those images. Quantitative data in the expert assessment may be compared to trainee-entered data recovered from the worksheet to provide an assessment of trainee proficiency in interpreting breast imaging studies. The data file of breast imaging information may be derived from actual clinical data anonymized and selected to provide for realistic yet demanding simulation.

First claim

I claim:

1. A simulator for breast imaging examination comprising:
a medical grade computer display;
a data input device; and
an electronic computer communicating with the medical grade computer display and the data input device, the electronic computer including:
(a) an electronic memory system holding a data structure having multiple records linking mammographic images related to actual patients having pre-recall information including a medical history and post-recall information including a final diagnostic conclusion of breast cancer, to expert recall instructions prepared by a healthcare provider reviewing the mammographic images without knowledge of the post-recall information, the expert recall instructions providing a healthcare provider's professional judgment of whether a patient associated with a given mammographic image should be recalled for additional imaging based on the mammographic image but not the post-recall information wherein at least some expert recall instructions are different than recall instructions that would be made based on the final diagnostic conclusion, the electronic memory system further holding a stored program;
(b) an electronic processor executing the stored program to successively read the records of the data structure to:
(i) display the given mammographic image;
(ii) receive input through the data input device indicating a trainee recommended recall instruction providing a trainee's judgment of whether the patient associated with the given mammographic image should be recalled for additional imaging based on the mammographic image;
(iii) compare the trainee recommended recall instruction and the expert recall instruction;
(iv) repeat steps (i)-(iii) for multiple mammographic images; and
(v) output a report indicating divergence between the trainee recommended recall instructions and the expert recall instructions represented by a number of discrepancies between the expert recall instructions and the trainee recall instructions.

2. The simulator for breast imaging examination of claim 1 wherein records of the data structure provide expert recall instructions that are predominantly instructions for no recall.

3. The simulator for breast imaging examination of claim 2 wherein the records of the data structure provide expert recall instructions instructing recall of the patient greater than a normal expected percentage of five to twelve percent.

4. The simulator for breast imaging examination of claim 3 wherein greater than 20 percent of the records of the data structure provide for expert recall instructions instructing recall of the patient.

5. The simulator for breast imaging examination of claim 3 wherein the recall instructions are encoded as numeric BI-RAD scores.

6. A simulator for breast imaging examination comprising:
a medical grade computer display;
a data input device; and
an electronic computer communicating with the medical grade computer display and the data input device, the electronic computer including:
(a) an electronic memory system holding a data structure having multiple records linking mammographic images, related to actual patients having pre-recall information including a medical history and post-recall information including a final diagnostic conclusion of breast cancer, to expert recall instructions and expert after-recall instructions prepared by a healthcare provider reviewing the mammographic images without knowledge of the post-recall information, the expert recall instructions providing a healthcare provider's professional judgment of whether a patient associated with a given mammographic image should be recalled for additional imaging based on the mammographic image but not the post-recall information wherein at least some expert recall instructions are different than recall instructions that would be made based on the final diagnostic conclusion and the expert after-recall instructions providing a healthcare provider's professional judgment of the ultimate breast cancer assessment of the patient wherein at least some expert after-recall instructions are different from the final diagnostic conclusion of breast cancer, the electronic memory system further holding a stored program;
(b) an electronic processor executing the stored program to successively read the records of the data structure to:
(i) display the given mammographic image;
(ii) receive input through the data input device indicating a trainee recommended recall instruction providing a trainee's judgment of whether the patient associated with the given mammographic image should be recalled for additional imaging based on the mammographic image;
(iii) receive input through the data input device indicating a trainee predicted after-recall assessment providing a trainee's judgment of an ultimate breast cancer assessment after the patient of the record is recalled for further imaging;
(iv) compare the trainee recommended recall instructions and the expert recall instructions;
(v) compare the trainee predicted after-recall instructions and the expert after-recall instructions;
(vi) repeat steps (i)-(v) for multiple mammographic images; and
(vii) output a report indicating divergence between the trainee recommended recall instructions and the expert recall instructions represented by a number of discrepancies between the expert recall instructions and the trainee recall instructions and a divergence between trainee predicted after-recall assessment and expert after-recall assessment represented by a number of discrepancies between the expert after-recall instructions and the trainee after-recall instructions.

7. The simulator for breast imaging examination of claim 6 wherein the predicted after-recall assessment are encoded as numeric BI-RAD scores.

8. The simulator for breast imaging examination of claim 6 wherein the predicted after-recall assessment includes at least one of a numeric likelihood of biopsy and a numerically encoded type of biopsy.

9. The simulator for breast imaging examination of claim 1 wherein step (ii) further receives input through the data input device indicating a trainee-determined location of suspicious imaging finding in the breast imaging examination of each record and wherein the records of the data structure further provide expert-determined location of suspicious imaging finding in the breast imaging examination of each record;
and wherein the output report indicates a divergence between trainee-determined location of suspicious imaging findings and expert-determined location of suspicious imaging findings informed by positional error between the trainee-determined location of suspicious imaging findings and the expert location of suspicious imaging findings.

10. The simulator for breast imaging examination of claim 1 further including a standard monitor communicating with the computer and wherein the standard monitor further displays a patient clinical history associated with each record.

11. The simulator for breast imaging examination of claim 1 wherein the records of the data structure provide records reflecting a normal age distribution.

12. The simulator for breast imaging examination of claim 1 wherein the records of the data structure provide records reflecting a normal breast-type distribution.

13. The simulator for breast imaging examination of claim 1 wherein the data structure includes no less than 50 records.

14. The simulator for breast imaging examination of claim 1 wherein the electronic computer further executes the stored program to provide a time limit for performing steps (i)-(iii) for the records.

15. The simu

Assignees

• Wisconsin Alumni Res Found

Inventors

• Salkowski Lonie

Classifications

• G09B23/286 Primary

  for scanning or photography techniques, e.g. X-rays, ultrasonics · CPC title

• G06F19/321 Primary

  Physics · mapped topic

• G06T2207/30068

  Mammography; Breast · CPC title

• G06T2207/10116

  X-ray image · CPC title

• G06T7/0014

  using an image reference approach · CPC title