PMID: 16639282Apr 28, 2006Paper

Radiology of the petromastoid canal

Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology
Lela Migirov, Jona Kronenberg

Abstract

The petromastoid canal is a thin structure that connects the mastoid antrum with the posterior cranial fossa and houses subarcuate blood vessels and prolongation of the dura. The current retrospective study was designed to investigate radiology of the petromastoid canal in different age groups and to determine whether increasing the scanner's resolution could enhance the detection capability of this structure. Axial sections of 504 high-resolution computed tomographic images obtained with 0.6-, 1.1-, or 1.3-mm-thick slices through the petrous bones were reviewed. Sixteen asymmetric images were excluded from the statistical analysis. Type I petromastoid canal was invisible; Type II and Type III appeared as thin channels less than 0.5 and 0.5 to 1 mm in width, respectively, and Type IV was greater than 1 mm wide. The petromastoid canal Type II was detected more frequently in patients older than 5 years (p<0.0001) and Type IV was demonstrated more often in children up to age 5 years (p<0.0001). The occurrence of a Type I petromastoid canal was not dependent on the age of the patients or the resolution of the images (p=0.82). Increasing the resolution failed to improve the visibility of the petromastoid canal or the ability to dete...Continue Reading

References

Oct 1, 1987·The Laryngoscope·D A Hilding
Nov 1, 1986·Acta Radiologica: Diagnosis·H WilbrandG Ruhn
Nov 1, 1983·The Annals of Otology, Rhinology, and Laryngology·B Proctor
May 20, 1999·Annals of Anatomy = Anatomischer Anzeiger : Official Organ of the Anatomische Gesellschaft·I TekdemirA Elhan

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Citations

May 7, 2010·Pediatric Radiology·Jessica Y Leung, Gisele E Ishak
Mar 3, 2009·Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery·Lela Migirov, Jona Kronenberg
Mar 16, 2013·International Journal of Pediatric Otorhinolaryngology·Christoph KenisStephen Stuckey
May 2, 2014·Journal of Magnetic Resonance Imaging : JMRI·Korgun KoralTimothy N Booth
Dec 7, 2019·Clinical Neuroradiology·John C BensonJohn I Lane
May 31, 2018·Surgical and Radiologic Anatomy : SRA·Mateusz MaślankaBogdan Ciszek
Nov 3, 2020·Journal of Neurological Surgery. Part B, Skull Base·Jorge RasmussenPablo Ajler

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