Clinical trial · Interventional
Searching for Masses and Calcifications at the Same Time in Breast Cancer Screening
Improving Perception in Digital Breast Tomography: Searching for Masses and Calcifications at the Same Time. NOTE: Note, This is One Study Under Study ID 386409 Projects 1,2,3: Experiments With Non Experts
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
Brief Summary A task like breast cancer screening (mammography) can be described as a "hybrid search" task. In basic visual search tasks, observers search for a target among distractors that are not the target. In hybrid search, observers search for two or more target types. In mammography, observers are searching for masses, calcifications ("calcs"), and some other signs of cancer like architectural distortion. In this experiment, the investigators have created a simulated version of mammography where non-expert (non-radiologist) observers can look for simulated masses and calcs. There are two types of stimuli, a 2D version (like an x-ray) and a 3D version (like the output of Digital Breast Tomosynthesis - DBT). The question that is being asked is whether it is better to ask about masses and calcs separately (first one, then the other) or to just let observers look for both at the same time.
Conditions
Conditions (3)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Breast Cancer | Malignant Breast Neoplasm | CURATED_EXACT | 0.92 |
| Mammography | — | UNRESOLVED | — |
| Radiology | — | UNRESOLVED | — |
Interventions
Interventions (4)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Search for both together | Behavioral | — | UNRESOLVED |
| Search for one after the other | Behavioral | — | UNRESOLVED |
| Search only for calcifications | Behavioral | — | UNRESOLVED |
| Search only for masses | Behavioral | — | UNRESOLVED |
Design
Arms and outcomes
Arms (2)
- type
- EXPERIMENTAL
- label
- Blocked Trials
- description
- There are four conditions in the experiment. Each condition will be presented in a separate block of 100 trials.
- interventionNames
- Behavioral: Search only for masses
- Behavioral: Search only for calcifications
- Behavioral: Search for both together
- Behavioral: Search for one after the other
- type
- EXPERIMENTAL
- label
- Mixed Trials
- description
- There are four conditions in the experiment. All condition will be presented, randomly mixed in a single block of 400 trials (with breaks every 100 trials).
- interventionNames
- Behavioral: Search only for masses
- Behavioral: Search only for calcifications
- Behavioral: Search for both together
- Behavioral: Search for one after the other
Primary outcomes (2)
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
Show eligibility criteria text
Inclusion Criteria: * Age over 18 yrs * Pass Ishihara color vision test Exclusion Criteria: * vision less than 20/25 with correction * history of neuromuscular or visual disorders
References
Publications (0)
Data not yet available