Detection of the View of 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

20010010

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

RDE123 

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

  • No

  • Yes

Units

N/A


 

Text Detection of View: Lateral, lat   

RadElement ID

RDE124 

Definition

Text label on image or within series description DICOM tag containing “lateral” or “lat” or similar variants

Data Type

Categorical

Value Set

  • No

  • Yes

Units

N/A


Text Detection of View: Oblique   

RadElement ID

RDE125 

Definition

Text label on image or within series description DICOM tag containing “oblique” or “obl” or similar variants

Data Type

Categorical

Value Set

  • No

  • Yes

Units

N/A



Secondary Outputs 

 

Determination of AP View       

RadElement ID

RDE126 

Definition

Is there an AP or frontal view?

Data Type

Categorical

Value Set

  • No

  • Yes

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

RDE127 

Definition

Is there a Lateral view?

Data Type

Categorical

Value Set

  • No

  • Yes

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

RDE128 

Definition

Is there an Oblique view?

Data Type

Categorical

Value Set

  • No

  • Yes

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.



Future Development Ideas


Future applications can be expanded to use in broader evaluation of cases for nearly all types of radiographs, including various body parts (ie, chest radiograph or upper extremity radiographs). Image feature analysis may also be used (in place of DICOM tag lookup or image text label) to determine projection (AP, lateral, oblique, etc).