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Variable echo time imaging for detecting the short T2* components of the sciatic nerve: a validation study.

Paolo Florent Felisaz1,2, Eugenio Belatti1, Xeni Deligianni3,4

  • 1Department of Neuroradiology, IRCCS Mondino Foundation, Pavia, Italy.

Magma (New York, N.Y.)
|September 23, 2020
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Summary
This summary is machine-generated.

This study developed a novel MRI sequence sensitive to short T2* components of the sciatic nerve. This advanced imaging technique shows promise for studying peripheral nerve disorders.

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Area of Science:

  • Medical Imaging
  • Neuroscience
  • Radiology

Background:

  • The sciatic nerve is crucial for lower limb function.
  • Assessing peripheral nerve health often requires advanced imaging techniques.
  • Short T2* components of nerves may offer unique diagnostic information.

Purpose of the Study:

  • To develop and validate a magnetic resonance imaging (MRI) protocol.
  • The protocol aims to be sensitive to the short T2* components of the sciatic nerve.
  • To establish a reliable MRI method for sciatic nerve evaluation.

Main Methods:

  • A dual echo variable echo time (vTE) sequence was employed at 3T.
  • The sequence targeted the sciatic nerve in 15 healthy subjects.
  • Apparent T2* (aT2*) values were calculated using mono-exponential fitting.

Main Results:

  • The developed vTE sequence demonstrated good-to-excellent repeatability and reproducibility for aT2* measures.
  • No significant differences in aT2* were found related to side, sex, age, or BMI.
  • Excellent contrast-to-noise ratio was achieved for both sides and echoes.

Conclusions:

  • A novel MRI sequence sensitive to short T2* components of the sciatic nerve was successfully developed and validated.
  • This sequence holds potential for the investigation of peripheral nerve disorders.
  • The protocol offers a reliable tool for sciatic nerve imaging.