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Pituitary

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2 papers 0 to 25 followers
By Felipe Constanzo M.D.
https://www.readbyqxmd.com/read/27179977/endo-icg-videoangiography-localizing-the-carotid-artery-in-skull-base-endonasal-approaches
#1
Juan Antonio Simal Julián, Pablo Sanromán Álvarez, Pablo Miranda Lloret, Carlos Botella Asunción
BACKGROUND: In this work, the applicability of ICG-VA to skull base endoscopic surgery and its capacity to locate the internal carotid artery are shown. METHODS: An adapted optical module to perform ICG-VA was used to perform endoscopic procedures. There were two intraoperative phases of interest that were used to evaluate the ICA: upon exposure of the skull base and during the intradural exploration. This new tool for obtaining ICA images in real time (as opposed to with navigation), and it is demonstrated that this tool provides a superior ability to detect the margins of the ICA compared with the Doppler technique...
July 2016: Acta Neurochirurgica
https://www.readbyqxmd.com/read/26401474/prediction-of-consistency-of-pituitary-adenomas-by-magnetic-resonance-imaging
#2
Kyle A Smith, John D Leever, Roukoz B Chamoun
Objective Pituitary adenomas are typically soft. The prevalence of fibrous adenomas is ∼ 5 to 13%. Firm tumors are difficult to remove by curettage or suction. Predicting fibrous adenomas by magnetic resonance (MR) imaging is typically difficult and unreliable. We propose a new prediction method based on MR T2-sequence intensity. Methods The MRIs of 36 consecutive patients with nonsecreting macroadenomas were evaluated preoperatively by a blinded radiologist. Using an MR T2-weighted sequence, regions of interest were sampled from the adenoma and cerebellar peduncle, and the ratio was calculated...
September 2015: Journal of Neurological Surgery. Part B, Skull Base
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