نتایج جستجو برای: dce mri

تعداد نتایج: 106948  

Journal: :Proceedings of SPIE--the International Society for Optical Engineering 2009
Satish Viswanath B Nicolas Bloch Mark Rosen Jonathan Chappelow Robert Toth Neil Rofsky Robert Lenkinski Elisabeth Genega Arjun Kalyanpur Anant Madabhushi

Screening and detection of prostate cancer (CaP) currently lacks an image-based protocol which is reflected in the high false negative rates currently associated with blinded sextant biopsies. Multi-protocol magnetic resonance imaging (MRI) offers high resolution functional and structural data about internal body structures (such as the prostate). In this paper we present a novel comprehensive ...

A Mostaar M Ashtiyani, S Navaei Lavasani

Background: Dynamic contrast enhanced magnetic resonance imaging (DCE-MRI) provides functional information on the microcirculation in tissues by analyzing the enhancement kinetics which can be used as biomarkers for prostate lesions detection and characterization.Objective: The purpose of this study is to investigate spatiotemporal patterns of tumors by extracting semi-quantitative as well as w...

2017
Alexey Surov Hans Jonas Meyer Matthias Gawlitza Anne-Kathrin Höhn Andreas Boehm Thomas Kahn Patrick Stumpp

BACKGROUND Dynamic contrast-enhanced magnetic resonance imaging (DCE MRI) can characterize perfusion and vascularization of tissues. DCE MRI parameters can differentiate between malignant and benign lesions and predict tumor grading. The purpose of this study was to correlate DCE MRI findings and various histopathological parameters in head and neck squamous cell carcinoma (HNSCC). PATIENTS A...

2015
Qing-Gang Xu Jun-Fang Xian

OBJECTIVE To elaborate the role of quantitative magnetic resonance imaging (MRI) parameters in the evaluation of treatment response in malignant tumors. DATA SOURCES Data cited in this review were obtained mainly from PubMed in English from 1999 to 2014, with keywords "dynamic contrast-enhanced (DCE)-MRI," "diffusion-weighted imaging (DWI)," "microcirculation," "apparent diffusion coefficient...

Journal: :Tissue engineering. Part C, Methods 2009
Sebastian Sauerbier Moritz Palmowski Michael Vogeler Heiner Nagursky Ali Al-Ahmad Dagmar Fisch Jürgen Hennig Rainer Schmelzeisen Ralf Gutwald Ulrike Fasol

OBJECTIVE To describe dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) as a practical tool for longitudinal assessment of angiogenesis in biomaterials. BACKGROUND There is a lack of suitable methods for in vivo evaluation of the integration of biomaterials in a clinical setting. In oncology, DCE-MRI is used for the longitudinal monitoring of altered tumor angiogenesis during the...

Journal: :Osteoarthritis and cartilage 2014
C Ballegaard R G C Riis H Bliddal R Christensen M Henriksen E M Bartels L S Lohmander D J Hunter R Bouert M Boesen

OBJECTIVE To investigate the association between knee pain and signs of inflammation in the infrapatellar fat pad (IPFP) in obese patients with knee osteoarthritis (KOA). DESIGN In a cross-sectional setting, 3-T conventional contrast-enhanced (CE) magnetic resonance imaging (MRI) and dynamic contrast-enhanced (DCE)-MRI of KOA were analysed to quantify the extent of inflammation in the IPFP, a...

Journal: :Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2008
Barbara Sotgia Roberto Sciagrà Iacopo Olivotto Giancarlo Casolo Luigi Rega Irene Betti Alberto Pupi Paolo G Camici Franco Cecchi

UNLABELLED To clarify the spatial relationship between coronary microvascular dysfunction and myocardial fibrosis in hypertrophic cardiomyopathy (HCM), we compared the measurement of hyperemic myocardial blood flow (hMBF) by PET with the extent of delayed contrast enhancement (DCE) detected by MRI. METHODS In 34 patients with HCM, PET was performed using (13)N-labeled ammonia during hyperemia...

2014
Jiuquan Zhang Lihua Chen Yongfeng Chen Wenwei Wang Lin Cheng Xiangdong Zhou Jian Wang

BACKGROUND/OBJECTIVES To prospectively examine the relation between tumor vascularity and glucose metabolism in adenocarcinoma (AC) and squamous cell carcinoma(SCC) of the lung by using positron emission tomography/computed tomography (PET/CT) and dynamic contrast enhanced magnetic resonance imaging (DCE-MRI). MATERIALS AND METHODS Forty-one consecutive patients with histologically confirmed ...

Journal: :Oral oncology 2011
Miki Hisatomi Yoshinobu Yanagi Hironobu Konouchi Hidenobu Matsuzaki Toshihiko Takenobu Teruhisa Unetsubo Jun-ichi Asaumi

Typical MR images of ameloblastomas on T2-weighted image (WI) or short inversion time inversion-recovery (STIR) show multiple bright high-signal-intensity loci on a high-signal-intensity background. Unilocular cystic-type ameloblastomas show homogeneously bright high signal intensity on T2WI or STIR as a water-like signal intensity. Therefore, it is difficult to distinguish unilocular cystic-ty...

2013
Fabian Zimmer Frank G. Zöllner Simone Hoeger Sarah Klotz Charalambos Tsagogiorgas Bernhard K. Krämer Lothar R. Schad

OBJECTIVES To establish arterial spin labelling (ASL) for quantitative renal perfusion measurements in a rat model at 3 Tesla and to test the diagnostic significance of ASL and dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) in a model of acute kidney injury (AKI). MATERIAL AND METHODS ASL and DCE-MRI were consecutively employed on six Lewis rats, five of which had a unilateral...

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