Rotational Profiles

An AI tool to measure degrees of misalignment of lower limb rotation in pre-surgical planning assessments .

Modality:

CT Scans

Pathology:

Lower limb rotation

Status:

Graveyard


CSC Lead: Anil Mistry

Current practice of manually drawing lines over the long bones and the joints on CT images in PACS to figure the degree of misalignment is time-consuming (15-20 minutes per case). An AI tool would automatically create these lines and angles, saving time and reducing variability.

Clinical lead: Dr. Christopher Tang

Project Plan
1. Meeting of all persons involved to determine AI specifications.

For radiologist (Chris) :
- Confirm +/3 to 5 degree precision with peers
- Confirm with surgeons how angles are used to guide knee surgery
- Confirm 3 bone ankle slice is the correct slice to analyse.
- Review software requirements spec

2. Setting technical and system requirements for AI model.

For CSC (Anil)
- Perform the risk assessment
- Create software design spec from software requirements spec
- Attempt to build non-A.I software with “dicom_server” and eventually “AI Deployment Engine”
- Investigate the AI route

3. Dataset curation (retrospective).

- Collect Patient ID’s for 100-200 patients, analysed by different radiologists

4. Model training

5.Model testing

6. Implementation

7. Audit

References:
Website used to help calculate rotational angles is here.