نتایج جستجو برای: imaging tomography

تعداد نتایج: 588111  

Arman Rahmim

This paper intends to compare the abilities of the two major imaging modalities in nuclear medicine imaging: Positron Emission Tomography (PET) and Single Photon Emission Computed Tomography (SPECT). The motivations are many-fold: (i) To gain a better understanding of the strengths and limitations of the two imaging modalities in the context of recent and ongoing developments in hardware ...

Journal: :basic and clinical neuroscience 0
g. ali hossein-zadeh hamid soltanian-zadeh

abstractneuroimaging allows noninvasive evaluation of the anatomy, physiology, and function of the brain. it is widely used for diagnosis, treatment planning, and treatment evaluation of neurological disorders as well as understanding functions of the brain in health and disease. neuroimaging modalities include x-ray computed tomography (ct), magnetic resonance imaging (mri), single photon emis...

ژورنال: مجله دندانپزشکی 2009
حسینی پویا, مهدی, دیوبند, محمدرضا, شکری, عباس, پنج‌نوش, مهرداد,

Background and Aim: The objective of this study was to measure and compare the tissue absorbed dose in thyroid gland, salivary glands, eye and skin in maxillofacial imaging with panoramic, conventional linear tomography, cone beam computed tomography (CBCT) and computed tomography (CT).Materials and Methods: Thermoluminescent dosimeters (TLD) were implanted in 14 sites of RANDO phantom to measu...

Osteoma is a benign bone-forming tumor that usually arises in the craniofacial bones and rarely in the long bones. Clavicular involvement is extremely rare. We report a 51-year-old woman with osteoma of the left clavicle. Radiograph of the left shoulder showed a well-defined lobulated blastic mass in the proximal and mid-portion of the left clavicle. Bone scintigraphy was performed 4 hours afte...

Journal: :iranian journal of radiology 0
hiroaki takahashi department of diagnostic radiology, university of tsukuba hospital, ibaraki, japan; department of radiology, ibaraki prefectural central hospital, ibaraki, japan; department of diagnostic radiology, university of tsukuba hospital, ibaraki, japan manabu minami department of diagnostic radiology, university of tsukuba hospital, ibaraki, japan tomohiko masumoto department of diagnostic radiology, university of tsukuba hospital, ibaraki, japan takashi hiyama department of diagnostic radiology, university of tsukuba hospital, ibaraki, japan yuka kujiraoka department of diagnostic radiology, tsukuba memorial hospital, ibaraki, japan mariko nakamagoe department of otolaryngology, university of tsukuba hospital, ibaraki, japan

ectopic cervical thymus (ect) is an essentially benign condition that is identified during the development of the thymus, and is rare among the adult population. thymic hyperplasia is another thymus-associated condition, which is known to occur secondary to hyperthyroidism. a 39-year-old woman with hyperthyroidism presented with an enlarging submandibular mass, which was diagnosed as a benign h...

Journal: :research in cardiovascular medicine 0
hadi malek rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran raheleh hedayati department of nuclear medicine, rasool-e-akram hospital, iran university of medical sciences, tehran, ir iran nahid yaghoobi rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran; department of nuclear medicine and molecular imaging, rajaie cardiovascular medical and research center, vali-asr st., niayesh blvd. tehran, ir iran. p. o. box: 1996911151, tel: +98-9121031582, fax: +98-2122042026 ahmad bitarafan-rajabi rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran seyed hassan firoozabadi rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran feridoon rastgou rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran

background subdiaphragmatic activity can produce subdiaphragmatic-related artifacts, which can degrade the quality of myocardial perfusion imaging (mpi). objectives we examined the impact of drinking milk, water, and lemon juice on different subdiaphragmatic-related artifacts by using 99mtc-sestamibi myocardial single-photon emission computed tomography (spect) in order to determine a feasible ...

Journal: :iranian journal of radiology 0
arash mahdavi faculty of medicine, shahid beheshti university of medical sciences, tehran, iran ali mohammadzadeh rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, iran golsa joodi faculty of medicine, tehran university of medical sciences, tehran, iran mohammad reza tabatabaei faculty of medicine, tehran university of medical sciences, tehran, iran farhad sheikholeslami endocrine research center, research institute for endocrine sciences, shahid beheshti university of medical sciences, tehran, iran marzieh motevalli rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, iran; rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, iran. tel: +98-2122042026, fax: +98-21-22042026

conclusion our results indicate that dsct coronary angiography provides high diagnostic accuracy for the evaluation of cad patients during daily routine practice of a referral cardiovascular setting. background there are numerous studies that address the diagnostic value of dual-source computed tomography (dsct) as an alternative to conventional coronary angiography (cca). however, the benefit ...

Journal: :research in cardiovascular medicine 0
nahid yaghoobi rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran hadi malek rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran; rajaie cardiovascular medical and research center, vali-asr st., niayesh blvd, tehran, ir iran. tel: +98-2122048173, fax: +98-2122048173

Journal: :iranian journal of radiology 0
guliz yilmaz department of radiology, faculty of medicine, near east university, nicosia, turkey; department of radiology, faculty of medicine, near east university, nicosia, turkey. tel: +90-3926751000, fax: +90-3926751090 suha halil akpinar department of radiology, faculty of medicine, near east university, nicosia, turkey

hydatid disease (hd) is a parasitic infection that is most commonly caused by the larval stage of echinococcus granulosus. unusual location for this disease can cause diagnostic and therapeutic problems. we herein report a case of sacrococcygeal hd at an unusual location in a 30-year-old woman. she was evaluated using computed tomography (ct) imaging and magnetic resonance imaging (mri) after t...

Journal: :iranian journal of radiology 0
preetam bhujagonda patil department of radiodiagnosis and imaging, s.d.m college of medical sciences and hospital,dliswwed-580009, karnataka state, india +91-8362447798, [email protected] muralidhar gururajrao kamalapur department of radiodiagnosis and imaging, s.d.m college of medical sciences and hospital,dliswwed-580009, karnataka state, india +91-8362447798, [email protected]; department of radiodiagnosis and imaging, s.d.m college of medical sciences and hospital,dliswwed-580009, karnataka state, india +91-8362447798, [email protected] jayaraj chandrashekhar sindhur department of medicine, s.d.m college of medical sciences and hospital dharwad, india shyamsundar krishnabhat joshi department of radiodiagnosis and imaging, s.d.m college of medical sciences and hospital,dliswwed-580009, karnataka state, india +91-8362447798, [email protected]

abstract deep seated cavernous angioma (ca) is a very rare entity, those occurring in the hypothalamus are still less common. we present a case of a 52-year-old man who presented with behavior and memory disturbance attacks. he had a ca of the hypothalamus as revealed by magnetic resonance imaging (mri). we will discuss the role and importance of imaging in such scenario and also the differenti...

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