نتایج جستجو برای: paraglottic space
تعداد نتایج: 494285 فیلتر نتایج به سال:
Knowing the surgical options for treating laryngeal carcinomas and the factors that are used to select patients for radiation therapy leads to a more comprehensive interpretation of neck scans in patients with laryngeal tumors (Table 6). Critical factors include tumor volume; cartilaginous invasion; spread across supraglottic-glottic-subglottic [table: see text] boundaries; infiltration of pree...
Background. The objective of this study is to assess the accuracy of pre- and posttherapeutic staging of endolaryngeal cancer involving anterior commissure. Materials and Methods. 127 patients were included in this retrospective study, and laryngectomy (partial or radical) was achieved in all of them. Initial radioclinical evaluation (cT) was performed (endoscopy-CT scan) and compared with post...
OBJECTIVE: The present study was aimed at evaluating the role of computed tomography in the local clinical staging of supraglottic tumors according to the TNM classification, as well as the interobserver agreement on the detection of the tumor extent. MATERIALS AND METHODS: Thirty-nine dossiers of inpatients of Hospital Heliópolis with supraglottic squamous cell carcinoma in the period between ...
squamous cell carcinoma comprises 95% of laryngeal carcinomas. it is usually detected by laryngoscopic evaluation. imaging plays an important role in the evaluation of submucosal extension and staging of this malignancy. supraglottic, glottic and sublottic regions are separately evaluated. in supraglottic region extension of the mass to preepilottic and paraglottic spaces and cartilges invasion...
BACKGROUND Computed tomography (CT) is used to evaluate the human tracheobronchial tree because of its unsurpassed ability to visualize the airway and surrounding structures. To establish an ideal animal model for studying subglottic stenosis, we assessed the size and morphology of the normal rabbit's laryngotracheal airway by helical CT. We measured luminal dimensions at the levels of the aryt...
in this article, we have focused one some basic and productive information about the properties of spectrum and singular values related to compact operators which are ideals in a c*-algebra of bounded operators. considering a two-sided connection between the family of symmetric gauge functions on sequence of singular values of compact operators and symmetric norms on finite dimensional ope...
اسانس گیاهان (خشک شده در سایه)، tanacetum tenuisectum , tanacetum polycephalum به دو روش: 1- تقطیر با آب 2- برای اولین بار به روش میکرواستخراج فاز جامد در فضای فوقانی گرفته شد و به روش gc/ms مورد آنالیز و شناسایی واقع گردید. عمده ترکیبات اسانس سرشاخه های گلدار گیاه (tanacetum polycephalum) hydrodistillation % compounds 12.07 camphor 10.66 1, 8- cineole 9.57 chrysanthenyl acetate – t...
let h be a separable hilbert space and let b be the set of bessel sequences in h. by using several interesting results in operator theory we study some topological properties of frames and riesz bases by constructing a banach space structure on b. the convergence of a sequence of elements in b is de_ned and we determine whether important properties of the sequence is preserved under the con...
PURPOSE To determine whether pretreatment CT can predict local control of T2 squamous cell carcinoma of the glottic larynx treated with radiation therapy alone. METHODS Pretreatment CT studies were retrospectively evaluated by two head and neck radiologists in 28 patients with T2 squamous cell carcinoma of the glottic larynx treated with definitive radiation therapy. All patients were followe...
تئوری چیدمان فضایی بر پای? گراف ها و قوانین آنان شکل می گیرد. و هر یال گراف در این تئوری برمبنای دید و دسترسی کاربر وزن دهی و تحلیل می شوند. بین هر دو نقطه در فضا که کاربر دید و دسترسی داشته باشد، برداری رسم می شود و این بردار به عنوان یک یال گراف در ارتباط دیگر یال ها تحلیل و بررسی می شود. نکته همین جاست؛ در درج? اول پارامترهای دید و دسترسی برای وزن دهی به یال های گراف کافی نیستند. ا?عمالِ...
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