نتایج جستجو برای: mr imaging

تعداد نتایج: 496065  

Cancer detection in early stage using a powerful and noninvasive tool is of high global interest. In this experiment, a small-molecular-weight glucose based derivative of Gd3+-1-(4-isothiocyanatobenzyl) diethylene tri amine penta acetic acid (Gd3+-p-SCN-Bn‐DTPA‐DG) as a novel potential MR imaging contrast agents was synthesized. Gd3+-p-SCN-Bn‐DTPA‐DG was synthesized with reacting of Glucosamine...

Malek M

Adnexal masses are spectrum of diseases from benign non neoplastic and neoplastic masses to malignant neoplasms. Endovaginal ultrasonography (US) is the fisrt and invaluable modality for assessment of adnexal masses because it is available and has a high negative predictive value. Important morphologic features are solid (vascularized) tissue, vascular and thick septations, and papillary projec...

Alireza Pahlevansabagh, Dawood Jafari, Farid Najd Mazhar, Hamid Taheri, Hooman Shariatzadeh,

  Abstract   A solitary plasmacytoma of bone occurs in approximately 2-5% of patients with   myeloma. The lesion mostly found in the axial skeleton and have infrequently been   reported to arise in the hand, and usually occur in the distal phalanges. We report the   interesting case of a 75-year-old man who developed a solitary lytic lesion of the   thumb proximal phalanx. This lesion was explo...

Journal: :iranian journal of nuclear medicine 1995
david n greyson

parathyroid adenomas, or hyperplasia may be present in patients with hypercalcemia. treatment is by surgical excision, but about 10% of the lesions may be in ectopic locations. pre-operative localization of the lesions with non-lvasive imaging, using radionuclides, ultrasound, ct, or mr], may simplify surgery, and reduce patient morbidity. however, the reports of the accuracy of the currently a...

ژورنال: :مجله دندانپزشکی 0
مهرداد پنج نوش mehrdad panjnoush assistant professor, department of oral and maxillofacial radiology, school of dentistry, tehran university of medical sciencesاستادیار گروه آموزشی رادیولوژی دهان، فک و صورت، دانشکده دندانپزشکی، دانشگاه علوم پزشکی و خدمات بهداشتی، درمانی تهران زهرا غنچه zahra ghoncheh assistant professor, department of oral and maxillofacial radiology, school of dentistry, tehran university of medical sciencesاستادیار گروه آموزشی رادیولوژی دهان، فک و صورت، دانشکده دندانپزشکی، دانشگاه علوم پزشکی و خدمات بهداشتی، درمانی تهران هدی السادات بنی هاشمی hoda banihashemi postgraduate student, department of periodontology, school of dentistry, shiraz university of medical sciencesدستیار تخصصی گروه آموزشی پریودنتیکس، دانشکده دندانپزشکی، دانشگاه علوم پزشکی و خدمات بهداشتی، درمانی شیراز فرنوش تقوی farnosh taghavi postgraduate student, department of prosthodontics, school of dentistry, shahed university of medical sciencesدستیار تخصصی گروه آموزشی پروتزهای دندانی، دانشکده دندانپزشکی، دانشگاه علوم پزشکی و خدمات بهداشتی، درمانی شاهد

زمینه و هدف: جابجایی دیسک یکی از شایع ترین اختلالات مفصل گیجگاهی فکی است و (mri) magnetic resonance imaging استاندارد طلایی در تشخیص آن می باشد. این اختلال می تواند تغییراتی در شدت سیگنال تصاویر mr به وجود آورد. هدف از این مطالعه بررسی ارتباط بین شدت نسبی سیگنال تصاویر mr در بافت رترودیسکال و عضله تریگوئید خارجی با انواع جابجایی قدامی دیسک و نیز flattening سر کندیل در بیماران مبتلا به (tmd) tem...

Journal: :Magnetic resonance imaging clinics of North America 2000
J O Barentsz G J Jager J A Witjes

MR imaging is the modality of choice for accurate local staging of bladder cancer. In addition, bladder MR imaging helps detect lymph node involvement, and in conjunction with computed tomography, provides complete staging. Familiarity with optimal imaging protocols, normal urinary bladder anatomy, and pathologic MR imaging appearances is essential for the radiologist. Evolving techniques, such...

Ahmad Shalbaf, Amir Hossein Jalalzadeh, Arash Maghsoudi,

Background: Surgery and accurate removal of the brain tumor in the operating room and after opening the scalp is one of the major challenges for neurosurgeons due to the removal of skull pressure and displacement and deformation of the brain tissue. This displacement of the brain changes the location of the tumor relative to the MR image taken preoperatively. Methods: This study, which is done...

Atul T. Tayde Vinit Gupta,

Susceptibility-weighted imaging (SWI) has continued to develop into a powerful clinical tool to visualize venous structures and iron in the brain and to study diverse pathologic conditions. It is a new art which evaluates and exploits the properties of blood, iron and other tissues. It is a magnitude or filtered phase images or combination of both, obtained with high-resolution 3D fully velocit...

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