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Magnetic Resonance Imaging

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Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...

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ASL-BIDS, the brain imaging data structure extension for arterial spin labeling.

Patricia Clement¹, Marco Castellaro², Thomas W Okell³

¹Department of Diagnostic Sciences, Ghent University, Ghent, Belgium. patricia.clement@ugent.be.

Scientific Data

|September 6, 2022

Summary

Standardizing Arterial Spin Labeling (ASL) data storage with ASL-BIDS improves reproducibility. This extension facilitates quantitative measurement of cerebral perfusion across diverse studies and platforms.

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Area of Science:

Neuroimaging
Medical Physics

Background:

Arterial Spin Labeling (ASL) is a non-invasive MRI technique for quantitative cerebral perfusion measurement.
Inconsistent reporting of ASL acquisition parameters hinders data quantification, analysis, and sharing across multi-site studies.
Standardization of ASL data storage, including metadata, is crucial for reliable research.

Purpose of the Study:

To introduce ASL-BIDS, the first BIDS extension for ASL data.
To detail the development and design choices for clinical ASL applications.
To promote the adoption of standardized ASL data storage.

Main Methods:

Overview of ASL-BIDS structure for ASL time series storage.
Implementation details for calibration, unit scaling, and labeling plane information.
Discussion of ASL-specific BIDS fields.

Main Results:

ASL-BIDS version 1.5.0 is released, providing a framework for ASL data standardization.
Includes information on compatible conversion and analysis software.
Provides example datasets in the standardized BIDS format.

Conclusions:

Widespread adoption of ASL-BIDS is expected to significantly enhance the reproducibility of ASL research.
Standardization will facilitate multi-site, multi-platform, and multi-method ASL studies.
Improves the reliability and comparability of quantitative cerebral perfusion measurements.