MR measurement of normal and pathologic brainstem diameters

P. R. Koehler, V. M. Haughton, D. L. Daniels, A. L. Williams, Z. Yetkin, H. C. Charles, D. Shutts

Research output: Contribution to journalArticle

17 Scopus citations


The dimensions of the brainstem were measured on magnetic resonance (MR) images to provide criteria for detecting brainstem enlargement. Twenty-eight normal adult subjects had MR iamging with sagittal partial-saturation and spin-echo sequences. Four patients with brainstem gliomas and three with cerebellar atrophy were also studied. Five measurements were made: the distance between the interpeduncular fissure and the aqueduct, the distance from the anterior surface of the cerebral peduncles to the aqueduct, the distance between the anterior surface of the pons midway between the mesencephalon and medulla to the fourth ventricular floor, the shortest anteroposterior diameter of the medulla at the pontomedullary junction, and the shortest anteroposterior diameter of the medulla at the medullospinal junction. Pontine diameter could be measured more reproducibility and accurately than mesencephalic or medullary diameters. In four patients with glioma, one or more of the measured diameters were more than 2 SDs above the average in normal volunteers, and abnormally small measurements were found in the patients with atrophy.

Original languageEnglish (US)
Pages (from-to)425-427
Number of pages3
JournalAmerican Journal of Neuroradiology
Issue number3
StatePublished - Dec 18 1985


ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Clinical Neurology

Cite this

Koehler, P. R., Haughton, V. M., Daniels, D. L., Williams, A. L., Yetkin, Z., Charles, H. C., & Shutts, D. (1985). MR measurement of normal and pathologic brainstem diameters. American Journal of Neuroradiology, 6(3), 425-427.