Case-adaptive medical image quality assessment

1. A computer-implemented method comprising:

detecting a prior set of features in at least one prior exam associated with a patient, wherein the detected prior set of features in at least one prior exam includes at least one anatomical landmark associated with the patient;

calculating a prior set of quality measurements for the at least one prior exam based on the detected prior set of features, wherein the at least one anatomical landmark detected in the at least one prior exam indicates proper positioning of a tissue of the patient in the at least one prior exam;

recording a patient-specific image quality threshold based on the calculated prior set of quality measurements for the at least one prior exam, wherein the recorded patient-specific image quality threshold indicates that the at least one prior exam includes sufficient quality for diagnostic interpretation by a computer-aided diagnosis (CAD) device;

detecting a current set of features in a current exam associated with the patient;

calculating a current set of quality measurements for the current exam based on the detected current set of features; and

in response to determining that the at least one anatomical landmark detected in the at least one prior exam is not included in the detected current set of features, such that the calculated current set of quality measurements for the current exam is below the recorded patient-specific image quality threshold defined by the at least one prior exam associated with the patient, automatically registering a negative quality assessment for the current exam associated with the patient.

2. The method of claim 1 , further comprising:

in response to automatically registering the negative quality assessment for the current exam associated with the patient, transmitting an instruction via a graphical user interface (GUI) notification to repeat the current exam.

3. The method of claim 1 , further comprising:

in response to determining that the calculated current set of quality measurements for the current exam meets the patient-specific image quality threshold defined by the at least one prior exam associated with the patient, automatically registering a positive quality assessment for the current exam associated with the patient.

4. The method of claim 2 , wherein the detected current set of features in the current exam and the detected prior set of features in the at least one prior exam are selected from the group consisting of: an anterior edge of a pectoral muscle patch, a sub-areolar area patch, a medial patch, a pectoral muscle segmentation, a nipple, a point in pectoral muscle perpendicular to the nipple, a lower end of the pectoral muscle, an inframammary fold (IMF), a midline, and a lateral landmark.

5. The method of claim 2 , wherein the calculated current set of quality measurements for the current exam and the calculated prior set of quality measurements for the at least one prior exam are selected from the group consisting of: a posterior nipple line (PNL) measurement, a nipple in profile determination, a missing pectoral muscle determination, a centered nipple determination, a pectoral muscle-to-breast length ratio, a pectoral muscle-to-breast area ratio, a determination of whether an IMF is present, an IMF length, and a blur determination.

6. The method of claim 3 , further comprising:

in response to automatically registering the positive quality assessment for the current exam associated with the patient, determining that the current exam includes sufficient quality for diagnostic interpretation by the CAD device.

7. A computer system for case-adaptive image quality assessment, comprising:

one or more processors, one or more computer-readable memories, one or more computer-readable tangible storage media, and program instructions stored on at least one of the one or more computer-readable tangible storage media for execution by at least one of the one or more processors via at least one of the one or more memories, wherein the computer system is capable of performing a method comprising:

detecting a prior set of features in at least one prior exam associated with a patient, wherein the detected prior set of features in at least one prior exam includes at least one anatomical landmark associated with the patient;

calculating a prior set of quality measurements for the at least one prior exam based on the detected prior set of features, wherein the at least one anatomical landmark detected in the at least one prior exam indicates proper positioning of a tissue of the patient in the at least one prior exam;

recording a patient-specific image quality threshold based on the calculated prior set of quality measurements for the at least one prior exam, wherein the recorded patient-specific image quality threshold indicates that the at least one prior exam includes sufficient quality for diagnostic interpretation by a computer-aided diagnosis (CAD) device;

detecting a current set of features in a current exam associated with the patient;

calculating a current set of quality measurements for the current exam based on the detected current set of features; and

in response to determining that the at least one anatomical landmark detected in the at least one prior exam is not included in the detected current set of features, such that the calculated current set of quality measurements for the current exam is below the recorded patient-specific image quality threshold defined by the at least one prior exam associated with the patient, automatically registering a negative quality assessment for the current exam associated with the patient.

8. The computer system of claim 7 , further comprising:

in response to automatically registering the negative quality assessment for the current exam associated with the patient, transmitting an instruction via a graphical user interface (GUI) notification to repeat the current exam.

9. The computer system of claim 7 , further comprising:

in response to determining that the calculated current set of quality measurements for the current exam meets the patient-specific image quality threshold defined by the at least one prior exam associated with the patient, automatically registering a positive quality assessment for the current exam associated with the patient.

10. The computer system of claim 8 , wherein the detected current set of features in the current exam and the detected prior set of features in the at least one prior exam are selected from the group consisting of: an anterior edge of a pectoral muscle patch, a sub-areolar area patch, a medial patch, a pectoral muscle segmentation, a nipple, a point in pectoral muscle perpendicular to the nipple, a lower end of the pectoral muscle, an inframammary fold (IMF), a midline, and a lateral landmark.

11. The computer system of claim 8 , wherein the calculated current set of quality measurements for the current exam and the calculated prior set of quality measurements for the at least one prior exam are selected from the group consisting of: a posterior nipple line (PNL) measurement, a nipple in profile determination, a missing pectoral muscle determination, a centered nipple determination, a pectoral muscle-to-breast length ratio, a pectoral muscle-to-breast area ratio, a determination of whether an IMF is present, an IMF length, and a blur determination.

12. The computer system of claim 9 , further comprising:

in response to automatically registering the positive quality assessment for the current exam associated with the patient, determining that the current exam includes sufficient quality for diagnostic interpretation by the CAD device.

13. A computer program product for case-adaptive image quality assessment, the computer program product comprising a computer readable storage medium having program instructions embodied therewith, the program instructions executable by a processor to cause the processor to perform a method comprising:

detecting a prior set of features in at least one prior exam associated with a patient, wherein the detected prior set of features in at least one prior exam includes at least one anatomical landmark associated with the patient;

calculating a prior set of quality measurements for the at least one prior exam based on the detected prior set of features, wherein the at least one anatomical landmark detected in the at least one prior exam indicates proper positioning of a tissue of the patient in the at least one prior exam;

recording a patient-specific image quality threshold based on the calculated prior set of quality measurements for the at least one prior exam, wherein the recorded patient-specific image quality threshold indicates that the at least one prior exam includes sufficient quality for diagnostic interpretation by a computer-aided diagnosis (CAD) device;

detecting a current set of features in a current exam associated with the patient;

calculating a current set of quality measurements for the current exam based on the detected current set of features; and

in response to determining that the at least one anatomical landmark detected in the at least one prior exam is not included in the detected current set of features, such that the calculated current set of quality measurements for the current exam is below the recorded patient-specific image quality threshold defined by the at least one prior exam associated with the patient, automatically registering a negative quality assessment for the current exam associated with the patient.

14. The computer program product of claim 13 , further comprising:

in response to automatically registering the negative quality assessment for the current exam associated with the patient, transmitting an instruction via a graphical user interface (GUI) notification to repeat the current exam.

15. The computer program product of claim 13 , further comprising:

in response to determining that the calculated current set of quality measurements for the current exam meets the patient-specific image quality threshold defined by the at least one prior exam associated with the patient, automatically registering a positive quality assessment for the current exam associated with the patient.

16. The computer program product of claim 14 , wherein the detected current set of features in the current exam and the detected prior set of features in the at least one prior exam are selected from the group consisting of: an anterior edge of a pectoral muscle patch, a sub-areolar area patch, a medial patch, a pectoral muscle segmentation, a nipple, a point in pectoral muscle perpendicular to the nipple, a lower end of the pectoral muscle, an inframammary fold (IMF), a midline, and a lateral landmark.

17. The computer program product of claim 14 , wherein the calculated current set of quality measurements for the current exam and the calculated prior set of quality measurements for the at least one prior exam are selected from the group consisting of: a posterior nipple line (PNL) measurement, a nipple in profile determination, a missing pectoral muscle determination, a centered nipple determination, a pectoral muscle-to-breast length ratio, a pectoral muscle-to-breast area ratio, a determination of whether an IMF is present, an IMF length, and a blur determination.