Evaluation of internal echo histograms of head and neck tumors.
نویسندگان
چکیده
منابع مشابه
Head and Neck Tumors: Management of Primary Undifferentiated Pleomorphic Sarcoma
Introduction: Sarcomas account for 1% of all tumors originated in the head and neck regions in adults. They constitute a heterogeneous group of tumors of mesenchymal origin with multiple histological variants. The undifferentiated pleomorphic sarcoma (UPS) subtype is the most frequent variant with an incidence range of 2.7-38%. Materials and Methods: This retrospective...
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In 2003, it is estimated that head and neck cancers will comprise 2%-3% of all cancers in the United States and account for 1%-2% of all cancer deaths. This total includes 19,400 cases of oral cavity cancers, 9,500 cases of laryngeal cancer, and 8,300 cases of pharyngeal cancer. Most patients with head and neck cancer have metastatic disease at the time of diagnosis (regional nodal involvement ...
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چکیده ندارد.
15 صفحه اولhazard evaluation of gas condensate stabilization and dehydration unit of parsian gas refinery using hazop procedures
شناسایی مخاطرات در واحد 400 پالایشگاه گاز پارسیان. در این پروزه با بکارگیری از تکنیک hazop به شناسا یی مخاطرات ، انحرافات ممکن و در صورت لزوم ارایه راهکارهای مناسب جهت افزایش ایمنی فرا یند پرداخته میگردد. شرایط عملیاتی مخاطره آمیز نظیر فشار و دمای بالا و وجود ترکیبات مختلف سمی و قابل انفجار در واحدهای پالایش گاز، ضرورت توجه به موارد ایمنی در این چنین واحدهایی را مشخص می سازد. مطالعه hazop یک ر...
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ژورنال
عنوان ژورنال: Practica Oto-Rhino-Laryngologica
سال: 1990
ISSN: 1884-4545,0032-6313
DOI: 10.5631/jibirin.83.923