What's the difference between petrous and stonelike?
Petrous
Definition:
(a.) Like stone; hard; stony; rocky; as, the petrous part of the temporal bone.
(a.) Same as Petrosal.
Example Sentences:
(1) When the method proposed by Trela (1975) is applied, thin layers of the petrous crest are chiselled out until the common crus of the superior and posterior semi-circular becomes apparent.
(2) This included estimation of the furthest distance that the cooling fluid, using coloured water, and the bone chips of a dry petrous temporal bone can be thrown, and the spread of the fine dust produced by the drilling using a staph.
(3) Skull base traumatic aneurysms most commonly involve the petrous, cavernous, or supraclinoid carotid artery and also show a predominance in teenage boys.
(4) The right petrous bone was hypoplastic and showed total superior dehiscence of the internal acoustic meatus.
(5) The method of choice for evaluating the position and appearance of the cochlear implant proved to be conventional tomography of the petrous bone in the frontal transorbital plane.
(6) 3) Despite displacement of the arcuate eminence, the SSC tended to remain perpendicular to the petrous ridge and 60 degrees from the internal auditory canal.
(7) An unusual case of aneurysmal dilatation of both petrous and cavernous carotid arteries and the vertebral-basilar junction in a child is presented.
(8) Tomography of the petrous bones showed, in both cases, an upward tilt of the long axes of the bones including their auditory canals, generalized sclerosis of the petrous pyramids and enlargement of the ossicles.
(9) Thin (1 mm) section CT in axial and coronal planes is the best imaging investigation of the petrous temporal bones but the place of magnetic resonance scanning to confirm that the inner ear is fluid-filled and polytomography to show a multichannel implant in the cochlea is discussed.
(10) A case of primary chondromyxoid fibroma of the petrous and sphenoid bones extending into the posterior clinoid process, sella, and cavernous sinus in a 26-year-old man is reported.
(11) The Authors conceive the petrous bone as made of four segments bounded by two vertical plans, one passing through the anterior wall of the internal auditory canal and the posterior wall of the external auditory canal, the other passing through the inner aspect of the tympanic cavity and the outer aspect of the labyrinthe.
(12) Drilling away one or several segments realizes a trans-petrous approach which always begins by drilling away the posterior-external segment, the retro-labyrinthine segment.
(13) In an attempt to find a more suitable bypass site for grafting, the petrous portion of 50 carotid arteries was studied in cadavers.
(14) Optimal techniques for the preoperative assessment and intraoperative management of the petrous carotid artery remain undefined.
(15) The inferior approach followed the petrous internal carotid artery (ICA) into the CS after an extradural subtemporal exposure or after a combined subtemporal and infratemporal fossa exposure.
(16) The distance, between the posterior extension of the sphenoidal sinus and the apex cell at the medial-anterior tip of the petrous bone, is between 8-16 mm and the contact of the both separated by thin bony wall (less than 0.5 mm) was seen in 3 adult cases (0.9%).
(17) In all cases but one, the tumors were round, or oval-shaped, well-delineated, and did not present significant contact with the petrous bone.
(18) This was associated with a right transverse fracture of the petrous bone and an intact tympanic membrane.
(19) In order to spare the cochlea and give adequate exposure to the apical cells, the middle fossa approach to the petrous apex is presented, to be used alone or in conjunction with mastoidectomy.
(20) We present a new approach to the skull base, medial and superior to the internal auditory canal, for tumors involving the anterior-superior cerebellopontine angle, petrous apex, and clivus.