نتایج جستجو برای: computed tomography phantom

تعداد نتایج: 279342  

Journal: :iranian journal of radiology 0
toshinori iwai department of oral and maxillofacial surgery, yokohama city university graduate school of medicine, 3-9 fukuura, kanazawa-ku, yokohama, kanagawa 236-0004, japan +81-45787 2659, [email protected]; department of oral and maxillofacial surgery, yokohama city university graduate school of medicine, 3-9 fukuura, kanazawa-ku, yokohama, kanagawa 236-0004, japan +81-45787 2659, [email protected] toshiharu izumi department of radiology, yokohama city university hospital, yokohama, kanagawa, japan junichi baba department of oral and maxillofacial surgery, yokohama city university graduate school of medicine, 3-9 fukuura, kanazawa-ku, yokohama, kanagawa 236-0004, japan +81-45787 2659, [email protected] jiro maegawa department of plastic and reconstructive surgery, yokohama city university hospital, yokohama, kanagawa, japan kenji mitsudo department of oral and maxillofacial surgery, yokohama city university graduate school of medicine, 3-9 fukuura, kanazawa-ku, yokohama, kanagawa 236-0004, japan +81-45787 2659, [email protected] iwai tohnai department of oral and maxillofacial surgery, yokohama city university graduate school of medicine, 3-9 fukuura, kanazawa-ku, yokohama, kanagawa 236-0004, japan +81-45787 2659, [email protected]

osteoma is a benign, slow-growing osteogenic tumor that sometimes arises from the craniomaxillofacial region, such as the sinus, temporal or jaw bones. osteoma consists of compact or cancellous bone that may be peripheral, central or extraskeletal type. peripheral osteoma arises from the periosteum and is commonly a unilateral, pedunculated mushroom-like mass. peripheral osteoma of the mandible...

Journal: :iranian journal of radiology 0
mehmet ilguy department of dentomaxillofacial radiology, yeditepe university faculty of dentistry, istanbul, turkey pinar kursoglu department of prosthodontics, yeditepe university faculty of dentistry, istanbul, turkey dilhan ilguy department of dentomaxillofacial radiology, yeditepe university faculty of dentistry, istanbul, turkey; department of dentomaxillofacial radiology, yeditepe university faculty of dentistry, istanbul, turkey. fax: +90-2163636211

abnormal elongation of the mandibular coronoid process is rare and its etiology is not yet elucidated. the aim of this report is to demonstrate and discuss the relationship between elongated mandibular coronoid process and limitation of mouth opening with cone beam computed tomography. although the clinical characteristic of elongation of the coronoid process is mandibular limitation, in this r...

Journal: :iranian journal of radiology 0
ercan kocakoc department of radiology, faculty of medicine, bezmialem vakif university, istanbul, turkey; department of radiology, faculty of medicine, bezmialem vakif university, istanbul, turkey. tel: +90-2124531700, fax: +90-2126217580 nuri havan department of radiology, faculty of medicine, bezmialem vakif university, istanbul, turkey mehmet bilgin department of radiology, faculty of medicine, bezmialem vakif university, istanbul, turkey musa atay department of radiology, faculty of medicine, bezmialem vakif university, istanbul, turkey

primary pancreatic leiomyosarcomas are rare malignant neoplasms with an aggressive course and a large size. a 56-year-old woman presented with an 8-year history of abdominal pain. multislice computed tomography revealed a large heterogeneous mass with necrotic, calcified and macroscopic fatty areas. the tumor was excised. histopathological evaluation revealed leiomyosarcoma of the pancreas. if ...

ژورنال: :مجله دندانپزشکی 0
امیر اسکندرلو a. eskandarlo assistant professor, department of radiology, hamedan university of medical sciencesاستادیار گروه آموزشی رادیولوژی دهان و فک و صورت، دانشگاه علوم پزشکی همدان رقیه بردال r. bardal assistant professor, department of radiology, ghazvin university of medical sciencesاستادیار گروه آموزشی رادیولوژی دهان و فک و صورت، دانشگاه علوم پزشکی قزوین مهدیه دهقانی m. dehghani assistant professor, department of radiology, yazd university of medical sciencesاستادیار گروه آموزشی رادیولوژی دهان وفک و صورت، دانشگاه علوم پزشکی یزد

زمینه و هدف:cone beam computed tomography (cbct) اطلاعات خوبی در زمینه تشخیص و درمان پریودنتال ارائه می دهد. با توجه به میزان کم تحقیقات در اندازه گیری استخوان پریودنتال با استفاده از cbct، هدف از این مطالعه بررسی دقت cbct در اندازه گیری ضایعات مختلف استخوانی و مقایسه آن با روش رادیوگرافی داخل دهانی و پروب بود.روش بررسی: 218 ضایعه استخوانی مصنوعی (اینفرابونی سطح باکال- لینگوال، اینترپروگزیمال، ...

Journal: :journal of dentomaxillofacil radiology, pathology and surgery 0
farzaneh mosavat department of oral and maxillofacial radiology, faculty of dentistry tehran university of medical sciences, tehran, iran ahura ahmadi shahid beheshti university of medical sciences, faculty of medical education, tehran, iran.

introdouction: mastoid pneumatization is often complete by the age of 5-years and may involve the temporo mandibular joint (tmj) region, including the pneumatized articular tubercle (pat) and pneumatized roof of the glenoid fossa (prgf). to prevent surgical complications, the diagnosis of these air cells is important. the aim of this study was to determine the prevalence and characteristics of ...

Journal: :avicenna journal of dental research 0
farhad faramarzi endodontics department, faculty of dentistry, hamadan university of medical sciences, hamadan, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (hamadan university of medical sciences) mitra vossoghi endodontics department, faculty of dentistry, hamadan university of medical sciences, hamadan, ir iran; endodontics department, faculty of dentistry, hamadan university of medical sciences, hamadan, ir iran. tel: +98-8118381086, fax: +98-8118381085سازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (hamadan university of medical sciences) abbas shokri radiology department, faculty of dentistry, hamadan university of medical sciences, hamadan, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (hamadan university of medical sciences) bahare shams periodontics department, faculty of dentistry, shahid beheshti university of medical sciences, tehran, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) maryam vossoghi prosthodontics department, kerman university of medical sciences, kerman, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی کرمان (kerman university of medical sciences) elham khoshbin endodontics department, faculty of dentistry, hamadan university of medical sciences, hamadan, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (hamadan university of medical sciences)

conclusions most extracted maxillary first molars were three rooted and four canals. cbct has relatively high reproducibility and accuracy of distinguishing mb2 canal. results we found 100% of cases with three separated roots, from which 69.23% had four canals including mb2 and 30.77% with three canals. 71.3% of mesiobuccal roots were two canals of type two vertucci and 28.7% type 4 with the me...

Journal: :nephro-urology monthly 0
baratali asghari health management research center, baqiyatallah university of medical sciences, tehran, ir iran mansour babaei health management research center, baqiyatallah university of medical sciences, tehran, ir iran bijan pakroshan health management research center, baqiyatallah university of medical sciences, tehran, ir iran alireza vaziriniya urology department, besat hospital, tehran, ir iran abdolreza babamahmoodi health management research center, baqiyatallah university of medical sciences, tehran, ir iran; health management research center, baqiyatallah university of medical sciences, tehran, ir iran. tel/fax: +98-2188614010

results the accuracy for detecting number of main renal arteries were not different in both groups which were 96.7% in ct angiography group and 90% in traditional angiography group (p = 0.15). the accuracy for detection of main renal veins were 100% in group 1 and 96.7% in group 2 (p = 0.31). patients and methods a total number of 60 living kidney donors who underwent open surgical approach for...

Journal: :avicenna journal of dental research 0
mahkameh moshfeghi department of oral and maxillofacial radiology, dental faculty, shahid beheshti university of medical sciences, tehran, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) shadi hamidiaval department of oral and maxillofacial radiology, dental faculty, lorestan university of medical sciences, khorramabad, ir iran; department of oral and maxillofacial radiology, dental faculty, lorestan university of medical sciences, khorramabad, ir iran. tel: +98-2188077784, fax: +98-2122371485سازمان اصلی تایید شده: دانشگاه علوم پزشکی لرستان (lorestan university of medical sciences) mohsen pakghalb faculty of technical and engineering, science and research branch, islamic azad university, tehran, ir iranسازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch) alireza akbarzadeh baghban department of basic sciences, school of rehabilitation, shahid beheshti university of medical sciences, tehran, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences)

conclusions the type of materials can influence the obtained gsv. different materials cause various amounts of artifacts due to differences in density and atomic number. results according to the mean gsv of the five different materials, the majority of artifacts produced were as follows: tempbond > zoe > mta > gi (chemfil dentsply) > gi (gc, fuji ιx). materials and methods samples of five cemen...

Journal: :bulletin of emergency and trauma 0
mohd lateef wani farooq ahmad ganie nasir-ud-din wani abdul gani ahangar ghulam nabi lone hafeezulla lone

o bjective: to describe the clinical characteristics, presentation and management of pardah pin inhalation in female teenagers of single center in northern india. m e thods: this was a prospective cross-sectional study being performed in department of cardiovascular and thoracic surgery of sher-i-kashmir institute of medical sciences located in northern india from january 2009 to december 2012....

Journal: :iranian red crescent medical journal 0
hossein ghanaati department of radiology, advanced diagnostic and interventional radiology research center (adir), tehran university of medical sciences, tehran, ir iran; department of radiology, advanced diagnostic and interventional radiology research center (adir), tehran university of medical sciences, tehran, ir iran. tel: +98-2166581579, fax: +98-2166581578 ali shakouri rad department of radiology, sina hospital, tehran university of medical sciences, tehran, ir iran kavous firouznia department of radiology, advanced diagnostic and interventional radiology research center (adir), tehran university of medical sciences, tehran, ir iran amir hossein jalali department of radiology, advanced diagnostic and interventional radiology research center (adir), tehran university of medical sciences, tehran, ir iran

conclusions in conclusion complementary to the previous studies our results have demonstrated that bronchial artery embolization remains as one of the most efficient procedures in managing massive hemoptysis, with minimal rate of complications. patients and methods all the patients had already been assessed by computerized tomography (ct) to localize and delineate the underlying etiology except...

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