Radiologist - Chest CT Annotation - AI Project (India)
About this job
Aptura is hiring radiologists for a short-term, remote project focused on chest CT annotation to support the development of clinical AI imaging models. In this contract role, you will perform structural markup tasks on de-identified chest CT scans using a dedicated digital platform. Your daily work involves reviewing scans where findings have already been flagged upstream. You will apply precise spatial accuracy based on detailed annotation guidelines to mark specific coordinates, draw bounding boxes around regions of interest, and record simple measurements such as diameters and distances. This is strictly a structural markup assignment rather than a diagnostic role, meaning you will not be evaluating malignancy or making clinical decisions. Instead, you will help shape how AI systems localise and measure medical findings while working flexibly and asynchronously.
Responsibilities
- Place click-points at specific coordinates on CT scans, such as nodule centers.
- Draw bounding boxes around defined regions of interest like flagged lesions.
- Record simple measurements including diameters and distances on pre-drawn segmentations.
- Apply detailed annotation guidelines consistently across a high volume of studies.
- Flag ambiguous edge cases with a brief rationale to refine future guidance.
Requirements
- Hold an active registration and license as a radiologist in your country of practice.
- Possess 3 to 10 years of experience in radiology with a chest or thoracic focus.
- Demonstrate a strong grounding in cross-sectional CT and thoracic anatomy.
- Show proven accuracy and consistency in image review and measurement tasks.
- Be comfortable using structured digital annotation platforms and tools.
- Have native or near-native written English proficiency.
- Maintain the legal right to work in your country of residence as an independent contractor.
Good to have
- Prior imaging annotation experience
Who should apply
This remote contract project is ideal for licensed radiologists with three to ten years of thoracic experience who want to contribute to clinical AI imaging development. It suits professionals seeking flexible, asynchronous, and part-time work arrangements where they can apply their knowledge of cross-sectional CT and thoracic anatomy to structural markup tasks without diagnostic responsibilities. Freshers are not mentioned for this role, as three years of specific radiology experience is required.
Frequently asked questions
What is the primary focus of the Radiologist - Chest CT Annotation role at aptura?
The role focuses on structural markup of de-identified chest CT scans, including click-point placement, bounding boxes, and measurements, to support clinical AI imaging models.
Is the Radiologist - Chest CT Annotation position at aptura a diagnostic role?
No, this is a structural markup project requiring no clinical interpretation, diagnosis, or assessment of malignancy.
What qualifications are needed to apply for the Radiologist - Chest CT Annotation project with aptura?
Applicants must be registered radiologists with an active license, 3 to 10 years of thoracic radiology experience, strong knowledge of cross-sectional CT, and native or near-native written English.
How is work structured for the Radiologist - Chest CT Annotation role at aptura?
Work is conducted remotely, part-time, and fully asynchronously as an independent contractor on a dedicated annotation platform.
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