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Building blocks for thoracic MRI: Challenges, sequences, and protocol design.

Constantine A Raptis1, Daniel R Ludwig1, Mark M Hammer2

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Summary
This summary is machine-generated.

Thoracic MRI overcomes challenges like low proton density and motion using advanced sequences. Radiologists need to understand these sequences for effective thoracic MRI protocol design.

Keywords:
chest MRIfunctional imagingprotocol designthoracic MRI

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Area of Science:

  • Radiology
  • Medical Imaging
  • Magnetic Resonance Imaging

Background:

  • Thoracic MRI faces challenges including low lung proton density and motion artifacts.
  • Despite challenges, thoracic MRI is crucial for clinical problem-solving and expanding indications.
  • Advancements in MRI technology enhance thoracic imaging capabilities.

Purpose of the Study:

  • To review the categories of MRI sequences used in thoracic imaging.
  • To familiarize radiologists with essential thoracic MRI techniques.
  • To guide the design of effective thoracic MRI protocols.

Main Methods:

  • Categorization of thoracic MRI sequences into traditional/anatomic, functional, and cine-based.
  • Review of building block sequences within each category.
  • Identification of key considerations for thoracic MRI protocol development.

Main Results:

  • Traditional/anatomic sequences visualize anatomy and pathology with contrast enhancement.
  • Functional sequences (e.g., diffusion-weighted imaging) measure tissue parameters noninvasively.
  • Cine-based sequences capture thoracic structure motion using ECG gating or real-time imaging.

Conclusions:

  • Radiologists require knowledge of various MRI sequences for thoracic applications.
  • Efficient and adaptable protocols are key to successful thoracic MRI practice.
  • Understanding sequence categories aids in answering clinical questions via thoracic MRI.