Workflow configuration and execution in medical imaging

• US 6,904,161 B1
• Filed: 11/17/2000
• Issued: 06/07/2005
• Est. Priority Date: 11/17/2000
• Status: Expired due to Term

• Current Assignee: Siemens Medical Solutions USA Incorporated (Siemens AG), Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Siemens Medical Solutions USA Incorporated (Siemens AG)
• Inventors: Tanaka, Takashi, Matsui, Susumu, O'Donnell, Kevin P., Becker, Douglas E., Mackin, Robert W. Jr., Habara, Atsushi, Durski, Kris, Narayanan, Sreenivasan, Pratt, William B., Andress, Keith M., Pai, Govind
• Primary Examiner(s): Boudreau, Leo
• Assistant Examiner(s): Miller, Ryan J.
• Application Number:
  US09/714,877
• Time in Patent Office: 1,663 Days
• Field of Search: 382/128, 700/11, 700/15, 707/1, 707/100, 707/200, 600/437
• US Class Current: 382/128
• CPC Class Codes: G01S 7/52098 related to workflow protocols
• CPC Class Codes: G16H 30/20 for handling medical images, e.g. DICOM, HL7 or PACS
• CPC Class Codes: G16H 30/40 for processing medical images, e.g. editing
• CPC Class Codes: G16H 40/63 for local operation
• CPC Class Codes: G16H 70/20 relating to practices or guidelines

Abstract

A computer-implemented method and apparatus is provided for workflow configuration and execution in medical imaging. One method embodiment comprises the steps of creating and storing a workflow template (the workflow template comprising a standard form for entering data and activities), filling out the workflow template with data and a sequence of activities, and executing the sequence of activities according to the workflow template.

Claims

1. A computer-implemented method of executing a medical imaging procedure on a patient, comprising the steps of:

creating and storing a workflow template, said workflow template containing a specific desired sequence of predefined medical imaging activities representing a particular medical imaging procedure, wherein each of said predefined medical imaging activities has at least one input connector and at least one output connector, each of said input and output connectors being associated with a data type, wherein links aria created between input and output connectors of different medical imaging activities only where associated data types of such activities are compatible with each other, and only output connectors of preceding activities in said sequence are capable of being linked to input connectors of subsequent activities, wherein said links transfer data from an output connector of one activity to an input connector of a linked activity;

retrieving a stored workflow template defining a particular medical imaging procedure desired to be performed;

entering into said retrieved workflow template particular patient data for a patient on whom the medical imaging procedure is to be executed; and

executing said desired sequence of activities by invoking said workflow template in conjunction with medical imaging acquisition and processing equipment.

2. The method of claim 1, wherein said sequence of activities comprise the steps of:

selecting data;

acquiring at least one image;

processing said at least one image; and

providing a processed image output.

3. The method of claim 1, further comprising the steps of:

detecting a change in said medical imaging procedure during said executing step if an activity change occurs; and

re-executing only activities in said sequence subsequent to the activity in which said activity change occurs upon detection of said change in said medical imaging procedure.

4. The method of claim 1, wherein an external application interface may be created in a workflow template, said external application interface allowing an external application to be executed as an activity.

5. The method of claim 1, wherein an external application interface may be created in a workflow template, said external application interface allowing an external application to be executed as an activity, with said external application interface performing the steps of:

reading external application input data from at least one input connector to said external application;

translating said external application input data into an external application format, if necessary;

storing said external application input data in an external application data file;

launching said external application;

passing a location of said external application input data to said external application;

waiting for said external application to terminate;

reading external application output data In an external application output file created by said external application;

reverse translating said external application output data into an internal data format, if necessary; and

placing said external application output data onto at least one external application output connector.

6. The method of claim 1, wherein a stored workflow template is capable of being launched by any device in communication over a communication medium with a system containing said stored workflow template.

7. The method of claim 1, wherein if an already-executed activity of saint sequence of activities is modified or invalidated, execution reverts to said already-executed activity.

8. The method of claim 1, wherein an activity is represented by a computer-displayed icon.

9. The method of claim 8, wherein an activity is chosen for inclusion in said sequence of activities by selection of said computer-displayed icon.

10. The method of claim 1, wherein at least one of said predefined medical imaging activities has at least two output connectors, each being connectable to input connectors of different subsequent activities.

11. The method of claim 1, wherein at least one of said predefined medical imaging activities has at least two input connectors, each being connectable to output connectors of different preceding activities.

12. A computer-implemented method of executing a medical imaging procedure on a patient, comprising the steps of:

configuring an image capturing sequence as part of a workflow process containing a sequence of defined executable activities wherein each of said activities has at least one input connector and at least one output connector, each of said input and output connectors being associated with a data type, wherein links are created between input and output connectors of different activities only where associated data types of such activities are compatible with each other, wherein said workflow process is stored in a memory of a computer;

configuring an image processing sequence as part of said workflow process;

executing said image capturing sequence by executing said workflow process;

executing said image processing sequence by executing said workflow process;

detecting a modification of an activity in said sequence as a change in said stored workflow process in real time during execution of an executing instance of said workflow process; and

re-executing only activities in said executing workflow process that are subsequent to said modified activity in said sequence, if said stored workflow process has been modified.

13. The method of claim 12, wherein execution of said workflow process comprises the steps of:

selecting data for use in said process;

acquiring at least one image;

processing said at least one image; and

providing a processed image output.

14. The method of claim 13, wherein said data comprises patient data.

15. The method of claim 12, wherein said steps of configuring include the step of connecting an output connector of a first activity within said sequence to an input connector of a second activity that is subsequent to said first activity, wherein said connection between said input connector and said output connector defines a data transfer between said first activity and said second activity.

16. The method of claim 12, wherein said workflow process further includes an external application interface as an executable activity, said external application interface allowing an external application to be executed as an activity.

17. The method of claim 12, wherein a stored workflow process is capable of being launched by any device in communication over a communication medium with a system containing said stored workflow process.

18. A workflow manager apparatus for carrying out a medical imaging procedure on a patient, comprising:

at least one I/O device, said at least one I/O device capable of being used by an operator to communicate with said apparatus;

a network interface capable of communicating over a distributed communication network with a plurality of devices used in said medical imaging procedure;

a memory capable of storing a workflow template including a sequence of executable activities related to said medical imaging procedure wherein each of said activities has at least one input connector and at least one output connector, each of said input and output connectors being associated with a data type, wherein links are created between input and output connectors of different activities only where associated data types of such activities are compatible with each other, and a DICOM medical imaging protocol; and

a CPU communicating with said at least one I/O device, said network interface, and said memory, with said CPU creating and storing a workflow template, filling out said workflow template with patient data to create a workflow, and executing said sequence of activities according to said workflow in response to inputs from said at least one I/O device.

19. The apparatus of claim 18, wherein said memory further contains a data object interface for interfacing to a patient database.

20. The apparatus of claim 18, wherein said memory further contains an external application interface that allows a workflow to link to and execute an external application.