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Scalable Quality Assurance for Neuroimaging (SQAN)

Key Investigators

  • Arvind Gopu (Indiana University)
  • Mike Young (Indiana University)
  • Sylvain Bouix (Harvard/BWH) is an early adopter/prototype user of SQAN

Project Description

(Abstract from our paper at SPIE Medical Imaging, Feb 2020): Medical imaging, a key component in clinical diagnosis of and research on numerous medical conditions, is very costly and can generate massive datasets. For instance, a single scanned subject produces hundreds of thousands of images and millions of key-value metadata pairs that must be verified to ensure instrument and research protocol compliance. Many projects lack funds to reacquire images if data quality issues are detected later. Data quality assurance (QA) requires continuous involvement by all stakeholders and use of specific quality control (QC) methods to identify data issues likely to require post-processing correction or real-time re-acquisition. While many useful QC methods exist, they are often designed for specific use-cases with limited scope and documentation, making integration with other setups difficult. We present the Scalable Quality Assurance for Neuroimaging (SQAN), an open-source software suite developed by Indiana University for protocol quality control and instrumental validation on medical imaging data. SQAN includes a comprehensive QC Engine that ensures adherence to a research study’s protocol. A modern, intuitive web portal serves a wide range of users including researchers, scanner technologists and data scientists, each of whom approach QC with unique priorities, expertise, insights and expectations. Since Fall 2017, a fully operational SQAN instance has supported 50+ research projects, and has QC’d ∼3.5 million images and over 700 million metadata tags. SQAN is designed to scale to any imaging center’s QC needs, and to extend beyond protocol QC toward image-level QC and integration with pipeline and non-imaging database systems.

Objective

  1. Objective A. Describe and demonstrate the SQAN Protocol Quality Control software
  2. Objective B. Collate contributions, and additional requirements

Approach and Plan

  1. We will do both a short and a longer presentation during Project Week 34.
  2. Perhaps in the future or via additional zoom? we hope to identify potential adopters of SQAN
  3. ...

Progress and Next Steps

  1. Describe specific steps you have actually done.
  2. ...
  3. ...

Illustrations

Background and References