Apparent Diffusion Coefficient Mapping of the Normal Parotid Gland and Parotid Involvement in Patients with Systemic Connective Tissue Disorders
Rahul R. Patela,
Ruth C. Carlosa,
Mehran Midiaa and
Suresh K. Mukherjia
a From the University of Michigan, Ann Arbor, MI
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FIG 1. Images obtained in 23-year-old female patient evaluated for headache.
A, T1-weighted axial MR image through the parotid gland (P). Arrow, spinal cord; arrowheads, mandibular rami.
B, Diffusion-weighted MR image through the same level demonstrating manually defined regions of interest over the parotid gland (P) and spinal cord (arrow).
C, ADC map with manually defined regions of interest over the parotid gland (P) and spinal cord (arrow).
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FIG 2. Images obtained in a 47-year-old female patient with SLE referred for mental status changes.
A, T1-weighted axial MR image through the parotid gland (P). The appearance of the parotid gland on T1- and T2-weighted (not shown) is normal (see Fig 1A). Arrow, spinal cord.
B, Diffusion-weighted MR image through the same level demonstrating manually defined regions of interest over the parotid gland (P) and spinal cord (arrow).
C, ADC map with manually defined regions of interest over the parotid gland (P) and spinal cord (arrow).
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AJNR - American Journal of Neuroradiology