PD-weighted images typically have long TR (>2000 ms) and short TE (<30 ms). Long black arrow, orbital fat; short black arrow, aqueous humor (mostly water);

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Presentation transcript:

PD-weighted images typically have long TR (>2000 ms) and short TE (<30 ms). Long black arrow, orbital fat; short black arrow, aqueous humor (mostly water); long white arrow, muscle; short white arrow, gray matter; *, white matter. Source: Overview of Diagnostic Modalities and Contrast Agents, Introduction to Diagnostic Radiology Citation: Elsayes KM, Oldham SA. Introduction to Diagnostic Radiology; 2015 Available at: https://accessmedicine.mhmedical.com/DownloadImage.aspx?image=/data/Books/1562/Elsayes_Ch01_Fig-01-26.png&sec=95875419&BookID=1562&ChapterSecID=95875179&imagename= Accessed: December 30, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved