{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,5]],"date-time":"2026-06-05T05:17:33Z","timestamp":1780636653720,"version":"3.54.1"},"reference-count":23,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2007,8,29]],"date-time":"2007-08-29T00:00:00Z","timestamp":1188345600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Magnetic Resonance Imaging"],"published-print":{"date-parts":[[2007,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>To identify reproducible anatomical landmarks that would allow predicting the course of the pyramidal tract (PT) through centrum semiovale.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and Methods<\/jats:title><jats:p>A total of 20 normal volunteers (12 males, eight females) with a mean age of 34 years (range, 20\u201359 years) were scanned using a 1.5\u2010Tesla clinical MR unit to assess the trajectory of the PT. Neuroanatomical characteristics of the PT passing through the centrum semiovale were assessed by two independent observers. Tractography data of 10 consecutive patients with brain tumor were used to test the precision of anatomy\u2010based prediction of the tract location.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>On sagittal view, 95% of the PT depicted on tractography displayed a completely straight or primarily straight course through the supratentorial brain. In 98% of tracts, the bending point of the PT was identified \u22643 mm from the level of the anterior commissure\u2010posterior commissure (AC\u2010PC) plane. In 80% of PT, the intersection with the AC\u2010PC plane occurred midway between the AC and the PC as seen on the sagittal view. Evaluation of the PT in 10 patients with brain tumor revealed that the anatomy\u2010based prediction of PT on the contralesional hemisphere was not substantially deviated from the actual tractography depicted PT. PT on the lesional hemispheres, however, had deviations of various degrees.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The course of the PT through supratentorial brain can be predicted based on easily identifiable landmarks. This anatomy\u2010based prediction can be clinically applied for cases without substantial mass effect from a space occupying lesion. J. Magn. Reson. Imaging 2007;26:519\u2013524. \u00a9 2007 Wiley\u2010Liss, Inc.<\/jats:p><\/jats:sec>","DOI":"10.1002\/jmri.21006","type":"journal-article","created":{"date-parts":[[2007,8,30]],"date-time":"2007-08-30T03:48:34Z","timestamp":1188445714000},"page":"519-524","source":"Crossref","is-referenced-by-count":34,"title":["The pyramidal tract has a predictable course through the centrum semiovale: A diffusion\u2010tensor based tractography 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