Identity matching of patient records

Patent metadata

Field	Value
Publication number	US-10657613-B2
Application number	US-201113700743-A
Country	US
Kind code	B2
Filing date	Jun 10, 2011
Priority date	Jun 17, 2010
Publication date	May 19, 2020
Grant date	May 19, 2020

Abstract

A system for matching a pair of patient records as belonging to the same individual or patient is disclosed. A set of matching rules (4) represents persistent characteristics of clinical properties of patients. A clinical property extractor (5) is used for extracting at least one first clinical property from clinical information contained in the first patient record (1) and at least one second clinical property from clinical information contained in the second patient record (2). A match detector (3) is used for detecting whether the first patient record (1) and the second patient record (2) relate to the same patient, based on the first clinical property, the second clinical property, and the set of matching rules 4. A demographic property extractor (6) is used for extracting demographic data.

First claim

The invention claimed is:

1. A method of determining whether a first patient record and a second patient record stored in a computer-readable form relate to the same patient, comprising:
extracting a first plurality of clinical properties from clinical information in the first patient record;
extracting a second plurality of clinical properties from clinical information in the second patient record;
distinguishing persistent clinical properties of the first plurality of clinical properties from non-persistent clinical properties of the first plurality of clinical properties;
for each persistent property of the first plurality of clinical properties:
determine if the persistent property is incompatible with at least one clinical property of the second plurality of clinical properties, wherein an attribute type of the at least one clinical property of the second plurality of clinical properties is different from an attribute type of the persistent property;
if the persistent property is incompatible with the clinical property of the second plurality of clinical properties, determine that the first and second patient records do not correspond to the same patient;
else, determine and store a matching score for the persistent property and the second plurality of clinical properties, and repeat for the next persistent property;

for each non-persistent property of the first plurality of clinical properties:
determine and store a matching score for the non-persistent property and the second plurality of clinical properties, and repeat for the next non-persistent property;

extracting a first plurality of demographic properties from demographic information in the first patient record;
extracting a second plurality of demographic properties from demographic information in the second patient record;
for each demographic property of the first plurality of demographic properties:
determine and store a matching score for the demographic property and the second plurality of demographic properties, and repeat for the next demographic property;

determining whether the first patient record and the second patient record relate to the same patient based on the matching scores of the first plurality of persistent properties, the first plurality of non-persistent properties, and the first plurality of demographic properties; and
if the first patient record and the second patient record relate to the same patient, recording this relationship in a non-transitory computer-readable medium so that a subsequent access to records of this same patient includes access to the first patient record and the second patient record.

2. The method of claim 1 , including selecting the second patient record based on at least one demographic property of the first property and at least one matching demographic property of the second patient.

3. The method of claim 1 , wherein determining whether the first patient record and the second patient record relate to the same patient is based on a composite score that is based on a weighting of the matching scores.

4. The method of claim 3 , wherein the weighting of the matching scores includes one of the weightings based on a temporal relationship between the first and second patient records.

5. The method of claim 3 , wherein determining whether the first patient record and the second patient record relate to the same patient is based on whether the composite score exceeds a threshold score.

6. The method of claim 5 , wherein, if the composite score is below the threshold score, but above a reject threshold, the method includes providing a suggestion to a user to facilitate determining whether the first patient record and the second patient record relate to the same patient.

7. The method of claim 5 , wherein, if the composite score is below the threshold score, but above a reject threshold, the method includes receiving a user input to facilitate determining whether the first patient record and the second patient record relate to the same patient.

8. The method of claim 1 , wherein extracting the clinical properties includes processing a medical image to determine at least one of the clinical properties.

9. The method of claim 1 , wherein determining at least one matching score for a clinical property of the first plurality of clinical properties is based on an assessment of more than one clinical properties of the second plurality of clinical properties.

10. A non-transitory computer-readable medium that includes a program that, when executed by a processor, causes the processor to:
extract a first plurality of clinical properties from clinical information in the first patient record;
extract a second plurality of clinical properties from clinical information in the second patient record;
distinguish persistent clinical properties of the first plurality of clinical properties from non-persistent clinical properties of the first plurality of clinical properties;
for each persistent property of the first plurality of clinical properties:
determine if the persistent property is incompatible with at least one clinical property of the second plurality of clinical properties, wherein a type of the at least one clinical property of the second plurality of clinical properties is different from a type of the persistent property;
if the persistent property is incompatible with the clinical property of the second plurality of clinical properties, determine that the first and second patient records do not correspond to the same patient;
else, determine and store a matching score for the persistent property and the second plurality of clinical properties, and repeat for the next persistent property;

for each non-persistent property of the first plurality of clinical properties:
determine and store a matching score for the non-persistent property and the second plurality of clinical properties, and repeat for the next non-persistent property;

extract a first plurality of demographic properties from demographic information in the first patient record;
extract a second plurality of demographic properties from demographic information in the second patient record;
for each demographic property of the first plurality of demographic properties:
determine and store a matching score for the demographic property and the second plurality of demographic properties, and repeat for the next demographic property;

determine whether the first patient record and the second patient record relate to the same patient based on the matching scores of the first plurality of persistent properties, the first plurality of non-persistent properties, and the first plurality of demographic properties; and
if the first patient record and the second patient record relate to the same patient, record this relationship in a computer-readable form so that a subsequent access to records of this same patient includes access to the first patient record and the second patient record.

11. The medium of claim 10 , wherein the program causes the processor to select the second patient record based on at least one demographic property of the first property and at least one matching demographic property of the second patient.

12. The medium of claim 10 , wherein the program causes the processor to determine whether the first patient record and the second patient record relate to the same patient by determining a composite score that is based on a weighting of the matching scores.

13. The medium of claim 12 , wherein the program causes the processor to weight at least one of the matching scores based on a temporal relationship between the first and second patient records.

Assignees

• Bucur Anca I D
• Vdovjak Richard
• Van Leeuwen Jasper J A
• Koninklijke Philips Nv

Inventors

• Bucur Anca I D
• Vdovjak Richard
• Van Leeuwen Jasper J A

Classifications

• G16H50/20

  for computer-aided diagnosis, e.g. based on medical expert systems · CPC title

• G06Q50/24 Primary

  Physics · mapped topic

• G16H10/60 Primary

  for patient-specific data, e.g. for electronic patient records · CPC title

• G06Q10/00

  Administration; Management · CPC title