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Orbital imaging techniques

C J Belden1, S J Zinreich

  • 1Johns Hopkins Hospital, The Russell H. Morgan Department of Radiology, Baltimore, MD 21287-2182, USA.

Seminars in Ultrasound, CT, and MR
|January 7, 1998
PubMed
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Computed tomography (CT) and magnetic resonance (MR) imaging are key for diagnosing orbital diseases. This article details optimal CT and MR imaging parameters for evaluating the challenging orbital region.

Area of Science:

  • Ophthalmology
  • Radiology
  • Medical Imaging

Background:

  • Plain films are obsolete for detailed orbital disease evaluation.
  • The orbit presents imaging challenges due to its bony enclosure, small size, and soft tissue content.
  • Globe movement further complicates high-quality orbital imaging.

Purpose of the Study:

  • To provide specific imaging parameters for CT and MRI of the orbit.
  • To guide radiologists in optimizing orbital evaluations.
  • To enhance diagnostic accuracy for orbital disorders.

Main Methods:

  • Review of established CT imaging protocols for the orbit.
  • Review of established MRI imaging protocols for the orbit.
  • Identification of critical imaging parameters for each modality.

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Main Results:

  • Specific technical parameters for CT acquisition are outlined.
  • Specific technical parameters for MRI acquisition are detailed.
  • Guidance on optimizing contrast and sequence selection is provided.

Conclusions:

  • Standardized CT and MRI parameters are essential for effective orbital imaging.
  • Properly acquired CT and MRI scans are crucial for diagnosing orbital diseases.
  • This guide aims to improve the quality and diagnostic yield of orbital imaging.