نتایج جستجو برای: swi

تعداد نتایج: 2401  

Journal: :Journal of cardiothoracic surgery 2015
Lachmandath Tewarie Rachad Zayat Helga Haefner Jan Spillner Andreas Goetzenich Rüdiger Autschbach Ajay Moza

BACKGROUND The impact of percutaneous dilatational tracheostomy (PDT) on the development of post-median sternotomy wound infection (SWI) and mediastinitis is still controversial. We aimed to investigate the frequency of cross-infection and incidence of SWI after PDT. METHODS In a retrospective design, out of a total of 4100 procedures, all patients who had undergone median sternotomy and post...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده کشاورزی 1390

مدل های مختلفی وجود دارند که از آنها به منظور تخمین رطوبت خاک در مطالعات منطقه ای و یا مزرعه ای استفاده می شود. از آنجا که رویکرد این تحقیق، مدل سازی رطوبت خاک به صورت منطقه ای و به منظور استفاده از آن در مطالعات خشکسالی است، از مدل رطوبتی حاکم بر نمایه شدت خشکسالی پالمر برای این منظور استفاده شده است. بدین منظور داده های دما و بارش ماهانه از تمام ایستگاه های همدیدی استان اصفهان برای یک دوره زم...

Journal: :AJNR. American journal of neuroradiology 2012
A M McKinney B Sarikaya C Gustafson C L Truwit

BACKGROUND AND PURPOSE PRES-related vasogenic edema is potentially reversible while hemorrhage occurs in only 15.2%-17.3% of patients. However, the true incidence of hemorrhage could be higher when SWI is considered. Thus, we set out to determine the incidence of MH, SAH, and IPH in PRES by using SWI and to particularly evaluate whether such MHs are reversible. MATERIALS AND METHODS Thirty-on...

2015
Marie Dubert Annabelle Pourbaix Soleiman Alkhoder Guillaume Mabileau François-Xavier Lescure Walid Ghodhbane Sabine Belorgey Christophe Rioux Laurence Armand-Lefèvre Michel Wolff Richard Raffoul Patrick Nataf Yazdan Yazdanpanah Jean-Christophe Lucet Fan Yang

BACKGROUND Sternal Wound Infection (SWI) is a severe complication after cardiac surgery. Debridement associated with primary closure using Redon drains (RD) is an effective treatment, but data on RD management and antibiotic treatment are scarce. METHODS We performed a single-center analysis of consecutive patients who were re-operated for SWI between 01/2009 and 12/2012. All patients underwe...

2013
Yan Bai Mei-Yun Wang Yan-Hong Han She-Wei Dou Qing Lin Ying Guo Wei Li De-Gang Ding Jian-Ping Dai Wei Qin Da-Peng Shi Jie Tian Yong-Ming Dai

BACKGROUND Susceptibility weighted imaging (SWI) is a new MRI technique which has been proved very useful in the diagnosis of brain diseases, but few study was performed on its value in prostatic diseases. The aim of the present study was to investigate the value of SWI in distinguishing prostate cancer from benign prostatic hyperplasia and detecting prostatic calcification. METHODOLOGY/PRINC...

Journal: :AJR. American journal of roentgenology 2013
Taha M Mehemed Akira Yamamoto Tomohisa Okada Mitsunori Kanagaki Yasutaka Fushimi Takeshi Sawada Kaori Togashi

OBJECTIVE In a clinical setting, lipoma can sometime show low signal intensity on susceptibility-weighted imaging (SWI) mimicking hemorrhage. The purpose of this study was to evaluate the fat-water interface chemical-shift artifacts between SWI and T2*-weighted imaging with a phantom study and evaluate SWI in lipoma cases. MATERIALS AND METHODS SWI, magnitude, high-pass filtered phase, and T2...

2013
A. Hunter Shain Jonathan R. Pollack

SWI/SNF is a multi-subunit chromatin remodeling complex that uses the energy of ATP hydrolysis to reposition nucleosomes, thereby modulating gene expression. Accumulating evidence suggests that SWI/SNF functions as a tumor suppressor in some cancers. However, the spectrum of SWI/SNF mutations across human cancers has not been systematically investigated. Here, we mined whole-exome sequencing da...

Journal: :Nucleic acids research 1999
J F Flanagan C L Peterson

The yeast SWI/SNF complex is required for expression of many genes and for the full functioning of several transcriptional activators. Genetic and biochemical studies indicate that SWI/SNF uses the energy of ATP hydrolysis to antagonize chromatin-mediated transcriptional repression. We have tested the possibility that SWI/SNF might also play a role in DNA replication. A mitotic minichromosome s...

2015
Pasquale Borrelli Giuseppe Palma Enrico Tedeschi Sirio Cocozza Marco Comerci Bruno Alfano E. Mark Haacke Marco Salvatore Parasuraman Padmanabhan

In susceptibility-weighted imaging (SWI), the high resolution required to obtain a proper contrast generation leads to a reduced signal-to-noise ratio (SNR). The application of a denoising filter to produce images with higher SNR and still preserve small structures from excessive blurring is therefore extremely desirable. However, as the distributions of magnitude and phase noise may introduce ...

Journal: :AJNR. American journal of neuroradiology 2010
Z Wu Shaowu Li J Lei D An E M Haacke

BACKGROUND AND PURPOSE SWI is an MR imaging technique that is very sensitive to hemorrhage. Our goal was to compare SWI and CT to determine if SWI can show traumatic SAH in different parts of the subarachnoid space. MATERIALS AND METHODS Twenty acute TBI patients identified by CT with SAH underwent MR imaging scans. Two neuroradiologists analyzed the CT and SWI data to decide whether there we...

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