|
Purpose |
Detection and classification of markers used in mammography. |
|
Tag(s) |
|
|
Panel |
Breast Imaging |
|
Define-AI ID |
23060009 |
|
Originator |
Richard Foster |
| Lead | Richard Foster |
|
Panel Chair |
Bhavika Patel, Robert Rosenberg |
|
Panel Reviewers |
Breast Imaging Panel |
|
License |
Creative Commons 4.0 |
| Status | Public Comment |
Utilizing skin markers to communicate the location of potential benign findings in mammography has been a long-standing practice. A nipple out of profile, a post-surgical scar, and a raised mole can all cause interpretation concerns if not identified as such for the radiologist. The ability for the AI engine to identify the presence of a marker, the location of the marker, and the shape of the marker could be useful in the following ways:
Nipple marker.
A nipple marker is useful to determine the location of the nipple when it is not evident on the exam.
a nipple marker is helpful to differentiate a retroareolar lesion from a nipple out of profile.
A nipple marker helps establish the nipple pectoral line when the nipple is not evident.
Mole marker.
The mole marker is useful when the mole images as an interparenchymal density and it cannot be determined if that density is on the skin or within the breast.
Scar marker.
The scar marker is useful to create correlation between a post-surgical scar and normal signs of scarring such as architectural distortion, calcifications, skin thickening, puckered or retracted skin and a spiculated mass.
A 75 year old female presents for screening mammography. The technologist observes a nipple out of profile, a raised skin mole or a post-surgical scar on the patient’s breast. According to the facility’s protocol, the technologist places a shaped marker as designated by the facility to communicate that finding. The nipple is marked with a pellet, a raised mole is marked with a lucent circle and the post surgical scar is marked with a lucent linear marker cut to the length of the scar. The technologist indicated on the worksheet that a marker was used and charts the location. The AI engine correctly identifies the shape of the marker and the location.
The screening mammogram with the marker in place is reviewed by the AI algorithm. The AI engine correctly identifies the marker based on the:
The shape of the marker (Sphere, circle, linear)
Input from the technologist stating that a marker was placed on the breast
The AI engine can then communicate the location of the marker and the shape of the marker.
|
Procedure(s) |
Screening Mammography |
|
View(s) |
CC and MLO screening views |
|
Age |
40+ |
DICOM Study
|
Procedure |
Screening Mammogram |
|
Views |
CC and MLO view |
|
Data Type |
DICOM |
|
Modality |
MAM |
|
Body Region |
Chest |
|
Anatomic Focus |
Breast |
Skin Marker Detection
|
RadElement ID |
RDE1718 |
|
Definition |
Identify if skin markers are present. |
|
Data Type |
Categorical |
|
Value Set |
|
|
Units |
N/A |
Location of skin marker
|
RadElement ID |
RDE1719 |
|
Definition |
identify the location of skin marker |
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Data Type |
Coordinates |
|
Value Set |
NA |
|
Units |
N/A |
Shape of skin marker
|
RadElement ID |
RDE1720 |
|
Definition |
identify the shape of skin marker |
|
Data Type |
Categorical |
|
Value Set |
Nipple marker - pellet marker Mole marker - lucent circle marker Scar marker - lucent linear marker |
|
Units |
N/A |
Laterality of skin marker use
|
RadElement ID |
RDE1721 |
|
Definition |
Was the marker used on the left or right breast |
|
Data Type |
Categorical |
|
Value Set |
Left Right |
|
Units |
N/A |
Skin Marker on previous studies
|
RadElement ID |
RDE1722 |
|
Definition |
Identify if there are any skin markers on previous studies in the same location if applicable |
|
Data Type |
Categorical |
|
Value Set |
Yes No Unknown |
|
Units |
N/A |