Method and system for supporting a clinical diagnosis

• US 9,002,769 B2
• Filed: 07/03/2012
• Issued: 04/07/2015
• Est. Priority Date: 07/03/2012
• Status: Active Grant

• Current Assignee: Siemens Healthineers AG (Siemens AG)
• Original Assignee: Siemens AG
• Inventors: Oberkampf, Heiner, Zillner, Sonja
• Primary Examiner(s): Rifkin, Ben
• Assistant Examiner(s): Wu, Fuming
• Application Number:
  US13/540,952
• Publication Number:
  US 20140012790A1
• Time in Patent Office: 1,008 Days
• Field of Search: None
• US Class Current: 706/46
• CPC Class Codes: G16H 50/20 for computer-aided diagnosis, e.g. based on medical expert systems

Abstract

A method and system for supporting a clinical diagnosis is provided, the method including the steps of representing a patient by a plurality of initial symptoms, the symptoms including characteristics of the patient; determining, by querying and reasoning in a disease-symptom knowledge model, at least one likely disease for each of the plurality of initial symptoms; mapping the plurality of initial symptoms onto a set of said likely diseases; determining for each disease of said set of likely diseases a plurality of associated symptoms, the associated symptoms being associated to a respective disease of said set of likely diseases in said disease-symptom knowledge model; categorizing each of the plurality of associated symptoms into disjoint categories by mapping associated symptoms with initial symptoms; and representing likely diseases in the context of said categories of associated symptoms.

Claims

1. A method for supporting a clinical diagnosis, comprising:

a) receiving, by a processor, semantically annotated initial symptom data for a patient indicating, for each of a plurality of initial symptoms, a determination of whether that initial symptom is present in the patient or absent from the patient;

b) determining, by the processor, by querying and reasoning in a disease-symptom knowledge model, at least one likely disease for each of the plurality of initial symptoms indicated as present in the patient according to the received initial symptom data;

c) mapping, by the processor, the plurality of initial symptoms onto a set of said likely diseases;

d) determining, by the processor, for each disease of said set of likely diseases a plurality of associated symptoms, the associated symptoms being associated to a respective disease of said set of likely diseases in said disease-symptom knowledge model;

e) for each disease of said set of likely diseases, categorizing, by the processor, each of the plurality of associated symptoms of the respective disease into one of the following disjoint categories by mapping each associated symptom corresponding with the respective disease with the plurality of initial symptoms,

wherein each associated symptom of the disease that is indicated by the initial symptom data as being present in the patient is categorized as an existing symptom;

wherein each associated symptom of the disease that is indicated by the initial symptom data as being absent from the patient is categorized as an absent symptom; and

wherein each associated symptom of the disease that is not indicated by the initial symptom data as being present in or absent from the patient is categorized as an open symptom; and

f) displaying, at a user interface, likely diseases in the context of said categories of associated symptoms, including displaying, for each likely disease, an indication of whether each associated symptom of that disease has been categorized as an existing symptom, an absent symptom, or an open symptom based on the initial symptom data for the patient.

2. The method of claim 1, including the step of:

g) enabling a user to change said categories of each of the plurality of associated symptoms.

3. The method of claim 2, including the step of:

h) enabling a user to request information entities stored in a record of the patient, the information entities being semantically related to at least one open symptom of said set of likely diseases.

4. The method of claim 3, including the step of:

i) inferring recommended examination steps by evaluating existing, absent and/or open symptoms in view of said disease-symptom knowledge model.

5. The method of claim 1, wherein said initial symptoms include at least one of findings, observations, symptoms, and negated symptoms.

6. The method of claim 1, including the step of:

treating the associated symptoms in step e) as initial symptoms and recurring the steps b) until f).

7. A system for supporting a clinical diagnosis, the system comprising:

a semantic patient database stored in non-transitory computer-readable media and including semantically annotated initial symptom data for a patient indicating, for each of a plurality of initial symptoms, a determination of whether that initial symptom is present in the patient or absent from the patient;

an ontology database stored in non-transitory computer-readable media and including a knowledge model establishing a relationship between a plurality of diseases and a plurality of associated symptoms for each respective disease; and

at least one processor having access to the semantic patient database and the ontology database and configured to execute computer-readable instructions to;

map the plurality of initial symptoms onto a set of likely diseases and for mapping the plurality of initial symptoms onto a set of said likely diseases;

for each disease of said set of likely diseases, categorize each of the plurality of associated symptoms of the respective disease into disjoint categories by mapping each associated symptom corresponding with the respective disease with the plurality of initial symptoms,

wherein each associated symptom of the disease that is indicated by the initial symptom data as being present in the patient is categorized as an existing symptom;

wherein each associated symptom of the disease that is indicated by the initial symptom data as being absent from the patient is categorized as an absent symptom; and

wherein each associated symptom of the disease that is not indicated by the initial symptom data as being present in or absent from the patient is categorized as an open symptom; and

cause the display of likely diseases in the context of said categories of associated symptoms, including displaying, for each likely disease, an indication of whether each associated symptom of that disease has been categorized as an existing symptom, an absent symptom, or an open symptom based on the initial symptom data for the patient.

8. The system of claim 7, wherein the at least one processor are further configured to enable a user to change said categories of each of the plurality of associated symptoms.

9. The system of claim 7, wherein the at least one processor are further configured to enable a user to request information entities stored in a record of the patient, the information entities being semantically related to at least one open symptom of said set of likely diseases.

10. The system of claim 7, wherein said initial symptoms include at least one of findings, observations, symptoms, and negated symptoms.

11. A computer program product, which comprises a non-transitory computer-readable medium storing a program code which, when executed by a processor, is configured to:

a) receive semantically annotated initial symptom data for a patient indicating, for each of a plurality of initial symptoms, a determination of whether that initial symptom is present in the patient or absent from the patient;

b) determine, by querying and reasoning in a disease-symptom knowledge model, at least one likely disease for each of the plurality of initial symptoms indicated as present in the patient according to the received initial symptom data;

c) map the plurality of initial symptoms onto a set of said likely diseases;

d) determine for each disease of said set of likely diseases a plurality of associated symptoms, the associated symptoms being associated to a respective disease of said set of likely diseases in said disease-symptom knowledge model;

e) for each disease of said set of likely diseases, categorizing each of the plurality of associated symptoms of the respective disease into disjoint categories by mapping each associated symptom corresponding with the respective disease with the plurality of initial symptoms,

wherein each associated symptom of the disease that is indicated by the initial symptom data as being present in the patient is categorized as an existing symptom;

wherein each associated symptom of the disease that is indicated by the initial symptom data as being absent from the patient is categorized as an absent symptom; and

wherein each associated symptom of the disease that is not indicated by the initial symptom data as being present in or absent from the patient is categorized as an open symptom; and

f) display likely diseases in the context of said categories of associated symptoms, including displaying, for each likely disease, an indication of whether each associated symptom of that disease has been categorized as an existing symptom, an absent symptom, or an open symptom based on the initial symptom data for the patient.