نتایج جستجو برای: 18f fdg pet/ct

تعداد نتایج: 21233  

2017
Nick Gulliver Nicola Mulholland Gill Vivian

Brain positron emission tomography (PET) has also been used over many years to diagnose neurodegenerative diseases, and has advantages over MRI due to its higher sensitivity to detect pathologies at a molecular level. While 18F-fluorodeoxyglucose (FDG) PETCT is an established imaging technique for assisting in the differential diagnosis of Alzheimer’s disease (AD) and other forms of dementia, P...

2012
L. I. Sonoda B. Sanghera W. L. Wong

INTRODUCTION (18)F-FDG-PET-CT plays an important role in the management of lymphoma postchemotherapy followup. Some centres perform prechemotherapy baseline CT and postchemotherapy PETCT. With a concern of radiation burden, especially in young patients, this study aimed to assess if PETCT radiation dose could be reduced. METHODS Retrospective analysis of 100 lymphoma patients was performed to...

Journal: :Egyptian Journal of Radiology and Nuclear Medicine 2022

Abstract Background With the expansion of use neoadjuvant chemotherapy(NAC) in locally advanced breast cancer (LABC), both dynamic contrast enhanced magnetic resonance imaging (DCE-MRI) and 18F-fluorodeoxyglucose positron emission tomography (18F-FDG PET CT) are promising methods for assessment tumor response during chemotherapy. We aimed to evaluate diagnostic accuracy DCE-MRI &18 F-FDG PE...

 Objective(s): 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET-CT) is a well-used and established technique for lung cancer staging. Radiation therapy requires accurate target volume delineation, which is difficult in most cases due to coexisting atelectasis. The present study was performed to compare the 18F-FDG PET-CT with contrast enhanced computed tomogr...

Journal: :iranian journal of nuclear medicine 0
maged abdel galil hamed radiology department, faculty of medicine, zagazig university, zagazig, egypt ahmed fathy abdel ghany radiology department, faculty of medicine, ain shams university, cairo, egypt

introduction:brain imaging with f-18 fluorodeoxyglucose (18f-fdg) positron ‎emission tomography or tc-99m hexamethylpropyleneamine oxime (‎99mtc-hmpao) spect is widely used for the evaluation of alzheimer's ‎dementia (ad); we aim to assess superiority of one method over the ‎other. methods: twenty four patients with clinical diagnosis of alzheimer disease ‎underwent 18f-fdg pet and ‎99mtc-...

Journal: :iranian journal of nuclear medicine 0
babak fallahi research center for nuclear medicine, shariati hospital, tehran university of medical sciences, tehran, iran bahar moasses-ghafari research center for nuclear medicine, shariati hospital, tehran university of medical sciences, tehran, iran armaghan fard-esfahani research center for nuclear medicine, shariati hospital, tehran university of medical sciences, tehran, iran parham geramifar research center for nuclear medicine, shariati hospital, tehran university of medical sciences, tehran, iran davood beiki research center for nuclear medicine, shariati hospital, tehran university of medical sciences, tehran, iran alireza emami-ardekani research center for nuclear medicine, shariati hospital, tehran university of medical sciences, tehran, iran mohammad eftekhari

introduction:myocardial 18f-fdg uptake is highly variable in oncologic whole body 18f-fdg pet/ct studies, ranging from quite intense to minimal distribution. intense or heterogeneous myocardial 18f-fdg uptake is undesirable as it may interfere with the visual or quantitative evaluation of tumoral invasion and metastases in pericardium, myocardium or adjacent mediastinal structures. the diet, as...

An inflammatory pseudotumor (IPT) is a rare benign lesion, characterized by nonneoplastic proliferation of inflammatory cells and presence of intermingling collagen fibers. IPT commonly occurs in the lungs and orbita, while an intraspinal IPT is extremely rare. IPT can mimic both clinically and radiologically malignant processes, and making a definitive preoperative diagnosis is often difficult...

Journal: :asia oceania journal of nuclear medicine and biology 0
mai hong son department of nuclear medicine, tran hung dao hospital, hanoi, vietnam bui quang bieu department of nuclear medicine, tran hung dao hospital, hanoi, vietnam le ngoc ha department of nuclear medicine, tran hung dao hospital, hanoi, vietnam

objective(s): in clinical practice, approximately 10-25% of post-surgical differentiated thyroid carcinoma (dtc) patients with high serum thyroglobulin (tg) and negative 131i whole-body scan (wbs) have poor prognosis due to recurrent or metastatic lesions after radioactive iodine treatment. the purpose of this study was to evaluate the value of 18f-fdg pet/ct scan in dtc patients with high seru...

Journal: :asia oceania journal of nuclear medicine and biology 0
jin-suk kim department of nuclear medicine, konyang university hospital, daejeon, south korea shin young park department of pathology, konyang university hospital, daejeon, south korea

an inflammatory pseudotumor (ipt) is a rare benign lesion, characterized by nonneoplastic proliferation of inflammatory cells and presence of intermingling collagen fibers. ipt commonly occurs in the lungs and orbita, while an intraspinal ipt is extremely rare. ipt can mimic both clinically and radiologically malignant processes, and making a definitive preoperative diagnosis is often difficult...

Journal: :asia oceania journal of nuclear medicine and biology 0
chanisa chotipanich national cyclotron and pet centre, chulabhorn hospital, thailand chetsadaporn promteangtrong national cyclotron and pet centre, chulabhorn hospital, thailand anchisa kunawudhi national cyclotron and pet centre, chulabhorn hospital, thailand rawisak chanwat surgery department, chulabhorn hospital, thailand thaniya sricharunrat pathology department, chulabhorn hospital, thailand savitree suratako national cyclotron and pet centre, chulabhorn hospital, thailand

objective(s): this study aimed to compare the diagnostic values of 11c-choline and 18f-fluorodeoxyglucose (18f-fdg) positron emission tomography/computed tomography (pet/ct) in patients with cholangiocarcinoma (cca). methods: this prospective study was conducted on 10 patients (6 males and 4 females), aged 42-69 years, suspected of having cca based on ct or magnetic resonance imaging (mri) resu...

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