Detection of the View of the Foot Radiographs
| Purpose | Detect the view (AP, lateral, oblique) of weight-bearing foot radiographs |
| Tag(s) | bilateral foot, foot, x-rays, radiographs, feet, AP, frontal, oblique, lateral, 3-view, 2-view, 1-view |
| Panel | Pediatric |
| Define-AI ID | 21010010 |
| Originator | Pediatrics Panel |
| Lead | Viet Le & Alex Towbin |
| Panel Chair | Steven Blumer |
| Panel Reviewers | Pediatric Panel |
| License | Creative Commons 4.0 |
| Status | Public Comment |
| RadElement Set | RDES199 |
Clinical Implementation
Value Proposition
It is important to determine which weight-bearing view of the foot/feet are being evaluated as certain measurements/angles are dependent on the particular view.
Narrative(s)
3-year-old female presents to the pediatrician with abnormal gait and in-toeing. Bilateral, weight-bearing AP/lateral/oblique foot radiographs are obtained for evaluation of foot deformities.
6-month-old male presents for contractures/abnormal positioning of the feet. Bilateral, AP/lateral/oblique foot radiographs with simulated weight-bearing are obtained for evaluation of foot deformities.
Workflow Description
Radiographs of the foot/feet are ordered, obtained, sent to PACS and the algorithm is triggered.
The algorithm delivers the following outputs:
AP or frontal, lateral, oblique.
Yes (=1) or No (=0)
Considerations for Dataset Development
| Procedures | X-ray, Foot Radiograph, Foot |
| Gender | Male, Female |
| Age (years) | 0-18 |
| Views | AP or Frontal, Lateral, Oblique |
| Technique | Weight-bearing, Simulated Weight-Bearing, Non-weight-bearing, Supine, Portable, Standing |
| Anatomy | Foot |
| Text to Identify | AP, anteroposterior, frontal, lateral, lat, oblique, Obl |
| Series Description | DICOM Tag (0x0008,0c103e) |
Technical Specifications
Input
DICOM Study
| Procedure | X-ray, Foot Radiograph |
| Views | AP or Frontal or Lateral or Oblique |
| Data Type | DICOM |
| Modality | X-ray |
| Body Region | Lower Extremity |
| Anatomic Focus | Foot |
Primary Outputs
Text Detection of View: AP, anteroposterior, frontal
| RadElement ID | |
| Definition | Text label on image or within series description DICOM tag containing “AP”, “Frontal”, “Anteroposterior”, “anterior/posterior”, or similar variants |
| Data Type | Categorical |
| Value Set |
|
| Units | N/A |
Text Detection of View: Lateral, lat
| RadElement ID | |
| Definition | Text label on image or within series description DICOM tag containing “lateral” or “lat” or similar variants |
| Data Type | Categorical |
| Value Set |
|
| Units | N/A |
Text Detection of View: Oblique
| RadElement ID | |
| Definition | Text label on image or within series description DICOM tag containing “oblique” or “obl” or similar variants |
| Data Type | Categorical |
| Value Set |
|
| Units | N/A |
Secondary Outputs
Determination of AP View
| RadElement ID | |
| Definition | Is there an AP or frontal view? |
| Data Type | Categorical |
| Value Set |
|
| Units | N/A |
| Notes | Presence of an AP or frontal view if the value set = 1 for primary output #1 and 0 for primary outputs #2 and #3. |
Determination of Lateral View
| RadElement ID | |
| Definition | Is there a Lateral view? |
| Data Type | Categorical |
| Value Set |
|
| Units | N/A |
| Notes | Presence of a lateral view if the value set = 1 for primary output #2 and 0 for primary outputs #1 and #3. |
Determination of Oblique View
| RadElement ID | |
| Definition | Is there an Oblique view? |
| Data Type | Categorical |
| Value Set |
|
| Units | N/A |
| Notes | Presence of an oblique view if the value set = 1 for primary output #3 and 0for primary outputs #1 and #2. |