نتایج جستجو برای: magnetic resonance venography

تعداد نتایج: 401802  

Journal: :archives of cardiovascular imaging 0
roy beigel the heart institute, cedars sinai medical center, david geffen school of medicine, ucla joao carlos tress hospital universitario pedro ernesto louise elizabeth jane thomson the heart institute, cedars sinai medical center, david geffen school of medicine, ucla daniel james luthringer department of pathology, cedars sinai medical center, david geffen school of medicine alexander shturman department of cardiovascular medicine, western galilee hospital, bar ilan university alfredo trento the heart institute, cedars sinai medical center, david geffen school of medicine, ucla

introduction while primary malignant tumors of the heart are rare, angiosarcomas are the most common cardiac malignant tumors. case presentation we describe a 23-year-old woman who presented with a right atrial mass, which was discovered to be a cardiac angiosarcoma. we demonstrate the use of several noninvasive imaging modalities along with pathology confirmation for the definitive and compreh...

Journal: :Neurologia 2011
G Guenther A Arauz

INTRODUCTION Cerebral venous thrombosis (CVT) is still a significant diagnostic and therapeutic challenge, due to its high variability of clinical manifestations and its lack of a clear therapeutic consensus. SOURCES A search of the medical literature was made through PubMed using the conjoined terms of CVT and epidemiology (428 results), pathophysiology (504 results), aetiology (2714 results...

2009
S-H. Lee C-K. Kang C-A. Park Y-B. Kim

Magnetic resonance venography (MRV) has been used to assess the effects of medical treatment for and the resolution of cerebral venous diseases. The contrast mechanism involving MRV used for functional or anatomical applications has been based on the local magnetic field inhomogeneity created by deoxyhemoglobin, which determines MR signal intensity [1,2]. Susceptibility weighted imaging (SWI), ...

2014
Qing Wang Jingzhen He Xiangxing Ma Erik Su.

Precise preoperative identification of the collateral venous anastomoses is critical for proper surgical management of patients with meningioma involving sinus. This study was to assess the feasibility of susceptibility weighted imaging (SWI) to delineate the collateral venous anastomoses before surgery. Twenty-five patients with meningiomas that were involved in sinuses underwent surgery and t...

Journal: :Magnetic resonance in medicine 2009
Sung-Hong Park Chan-Hong Moon Kyongtae Ty Bae

An improved dual-echo sequence magnetic resonance (MR) imaging technique was developed to simultaneously acquire a time-of-flight MR angiogram (MRA) and a blood oxygenation level-dependent MR venogram (MRV) in a single MR acquisition at 3 T. MRA and MRV require conflicting scan conditions (e.g., excitation RF profile, flip angle, and spatial presaturation pulse) for their optimal image quality....

Journal: :Arteriosclerosis, thrombosis, and vascular biology 2014
J A Diaz S K Wrobleski A R Pechota A E Hawley K J Roelofs N K Doornbos J E Gabriel G Reynolds P Lester F Londy S Lowe P K Henke R G Schaub T W Wakefield D D Myers

OBJECTIVE Aptamers are oligonucleotides targeting protein-protein interactions with pharmacokinetic profiles and activity reversal options. Although P-selectin and von Willebrand factor (vWF) have been implicated in the development of venous thrombosis (VT), no studies have directly compared aptamer efficacy with standard of care in VT. In this study, ARC5692, an anti-P-selectin aptamer, and AR...

Journal: :International journal of radiology and diagnostic imaging 2022

Background: The present study aimed to compare the accuracy between conventional MRV with 2D Time of Flight sequence versus contrast enhanced in Cerebral venous sinus thrombosis.Materials and methods: This was a hospital based ambispective that conducted from Jan 2021 Jun 2022 Department Radiodiagnosis Mahatma Gandhi Medical College Research Institute (MGMCRI), Pondicherry after obtaining appro...

Ali Zamani, Mehdi Hoseini Mina Nouri,

Introduction: Staff and patient Movement in static magnetic field MRI scanner induces current density in the human tissues, so cause biologic effects in people. The aim of this study was the Modelling of current density induced by moving individual with different velocities in static magnetic field of magnetic resonance imaging. Materials and Methods: current ...

Journal: :iranian journal of radiology 0
xiaona li department of radiology, the third hospital of hebei medical university,hebei province biomechanical key laboratory of orthopedics,shijiazhuang, hebei, china zhigang peng department of radiology, the third hospital of hebei medical university,hebei province biomechanical key laboratory of orthopedics,shijiazhuang, hebei, china jingpin zhao department of radiology, the third hospital of hebei medical university,hebei province biomechanical key laboratory of orthopedics,shijiazhuang, hebei, china zekun zhang department of radiology, the third hospital of hebei medical university,hebei province biomechanical key laboratory of orthopedics,shijiazhuang, hebei, china; department of radiology, the third hospital of hebei medical university, shijiazhuang, hebei, 050051, china. tel: +86-31188603361, fax: +86-31187023626

thisis a case report of a 24-year-old man who presented with increased pain and firm swelling of the right foot after a minor twisting injury. radiography, computed tomography (ct) and magnetic resonance imaging (mri) findings showed ancillary information that was helpful for surgical treatment. the final diagnosis was confirmed aschondroblastoma of the navicular bone based on the pathology rep...

Journal: :iranian red crescent medical journal 0
masoumeh gity advanced diagnostic and interventional radiology research center (adir), tehran university of medical sciences, tehran, ir iran; advanced diagnostic and interventional radiology research center, medical imaging center, imam khomeini hospital, keshavarz blvd., tehran, ir iran. tel: +98-2166581579, fax: +98-2166581578 koosha ghazi moghadam clinic of solingen, medical university of cologne, cologne, germany amir hossein jalali advanced diagnostic and interventional radiology research center (adir), tehran university of medical sciences, tehran, ir iran madjid shakiba advanced diagnostic and interventional radiology research center (adir), tehran university of medical sciences, tehran, ir iran

conclusions although in our study washout pattern was the most powerful indicator for malignant pathology in non mass like enhancing lesions, more studies with larger sample size needs in this regard. background several studies on the diagnostic efficacy of mri has not real consensus for the accuracy of mri characteristics in non mass like breast lesions, and the number of malignant lesions in ...

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