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2009 OCT 19 ... pattern was defined according to the behavior of the lesions in each phase, and dynamic pattern was described according to the progression of enhancement throughout the ... cholangiocarcinoma (ICC) in patients with cirrhosis with specific analysis of the contrast enhancement pattern. Cholangiocarcinoma may show increased contrast uptake in the ...
2009 NOV 17 ... by a peristaltic pump with the option to inject contrast material. We evaluated repeated dynamiccontrast-enhanced CT acquisitions with different input flow rates and the relation to ... measurements with contrast material injection and storage did not alter the phantom. The enhancement properties did not change over the time of 1 year. With our setup, it was possible to ...
2009 NOV 23 ... in the near-IR region," scientists writing in the journal Langmuir report."Dynamic light scattering measurements show that the addition of p-ATP immediately assembles the ... electromagnetic enhancement largely contributes to the SERS of the AuNP aggregates. In contrast, the enhancement of the b(2)-symmetry bands occurs similar to 10 h after the formation ...
2009 NOV 16 ... (T2W) images as well as post-SPIO T2- and T2*W images were obtained. Then, for dynamic MRI, arterial (AP), portal, and equilibrium images were also obtained. Two radiologists ... in Seoul, South Korea conducted a study "To assess the diagnostic value of dual contrast magnetic resonance imaging (DC-MRI) in the differentiation of well-differentiated ... signal intensity on the all MR sequences in consensus. On AP images, the degree of enhancement was subjectively categorized into 4 groups: no, minimal, moderate, and strong ...
2009 NOV 23 ... the journal Acta Radiologica report. "To evaluate the relationship between dynamic enhanced MR features and prognostic factors of clinical outcome of breast cancer. A ... Ki-67 index, and increased MVD. Early peak enhancement, as seen on the first scan after contrast medium injection, was correlated with negative ER expression," wrote Y.W. Chang and ...
2009 NOV 16 ... oxygen-sensitive contrast agent OX63. Substantial MRI signal enhancement was induced by dynamic nuclear polarization (DNP). The DNP achieved up to a 7,000% increase in MRI signal at an ...
2009 NOV 2 ... agent gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid (Gd-EOB-DTPA) on dynamic MRI and to determine the time point of maximum liver-to-lesion contrast. Twenty-five ... of our study was to prospectively evaluate quantitatively and qualitatively the enhancement patterns of cirrhotic liver tissue and hepatocellular carcinoma (HCC) after ...
2009 NOV 10 ... According to recent research from Hong Kong, People's Republic of China, "Using dynamiccontrast enhanced MR imaging, this study investigated perfusion of the proximal femur in ... "Right proximal femur BMD measurement by DXA and MR perfusion imaging (maximum enhancement, E-max and enhancement slope. E-slope) of the femoral head, neck, and proximal shaft ...
2009 OCT 27 ... (CCER) were measured during the main growth phase (leaf area index >= 2) using a dynamic chamber system." "Canopy CO2 exchange data were analysed with respect to ... neither the initial slopes nor their response to elevated [CO2] in either period. In contrast to initial slopes, N stress limited the [CO2] response of CCERmax in the first period. ... on daily radiation use efficiency of carbon gain calculated from CCER data, but a strong enhancement by CO2 enrichment. CCER closely tracked diurnal variations in incident photosynthetic ...
2009 NOV 9 ... "The aim of this study was to evaluate the feasibility of quantitative analysis of dynamiccontrast-enhanced magnetic resonance imaging (DCE-MRI) data in the detection of bowel ... uptake, larger initial areas under the contrast concentration curve, and steeper initial enhancement slopes than normal bowel segments (P < .05). The areas under the receiver-operating ...
2009 NOV 2 ... enhancement kinetic curve (i.e., persistently enhancing, plateau, or washout) seen on dynamiccontrast-enhanced MRI (DCE-MRI) of the breast is predictive of malignancy. Qualitative ...
2009 OCT 19 ... has been reported for computed tomography. Tailored high-resolution MR examinations with dynamic contrast enhancement can reliably diagnose osteoid osteomas and exactly localize the nidus without radiation ...
2009 SEP 8 ... to a study from Hong Kong, People's Republic of China, "The technical feasibility of dynamiccontrast-enhanced magnetic resonance imaging (MRI) measurement of rat vertebral blood ... with a temporal resolution of 0.6 s. Blood perfusion parameters of wash-in rate, maximum enhancement and wash-out rate were derived from the dynamic MR images. No vertebral body size and ...
2009 SEP 28 ... research published in the journal Clinical Cancer Research, "This study tests whether dynamiccontrast-enhanced magnetic resonance imaging (DCE-MRI) parameters obtained from canine ... had DCE-MRI done before and following the first hyperthermia." "Signal enhancement for tumor and reference muscle were fitted empirically, yielding a washin/washout rate ...
2009 NOV 2 ... The researchers concluded: "In addition, all patients who underwent dynamic studies (n = 4) showed peripheral and internal spongelike or meshlike progressive ... (n = 4) showed peripheral and internal spongelike or meshlike progressive delayed contrastenhancement." Yoon and colleagues published the results of their research ...
2009 OCT 12 ... as ductal carcinoma in situ (DCIS). invasive ductal carcinoma (IDC), and other. The dynamic MRI protocol consisted of one unenhanced and three to seven contrast-enhanced images ... IDC lesions visualized with imaging protocol and system 3 had significantly less initial enhancement longer time to peak enhancement, and a slower washout rate (p < 0.004). Only 47% of ...
2009 SEP 14 ... and the acquisition of T1-weighted fast field echo, echo planar imaging (FFE EPI) axial dynamic sequences with a slice thickness of 3 mm. During postprocessing, subtracted images were ... a focal architectural distortion on mammography." "All patients underwent contrast-enhanced breast MRI with a T1 Philips Gyroscan scanner and the acquisition of ... subtracted images were assessed for morphological features, pattern of contrast enhancement, time-intensity curve and lesion enhancement rate. Breast MRI depicted 27 lesions ...
2009 SEP 7 ... from Hull, the United Kingdom, "To assess the use of a semiquantitative analysis of dynamiccontrast-enhanced (DCE) magnetic resonance imaging (MRI) to produce indices for ... New research, 'Description of magnetic resonance imaging-derived enhancement variables in pathologically confirmed prostate cancer and normal peripheral zone ...
2009 OCT 5 ... researchers concluded: "In addition, functional and molecular imaging give insight into dynamic processes of tissues in their natural surroundings." Goetz and colleagues ... endoscopy offer new possibilities of easily and reversibly obtaining enhanced tissue contrast. Autofluorescence imaging uses tissue function to yield a pseudocolored image, and has ... optimized our endoscopic view onto the mucosa and can be combined with digital surface enhancement modalities. Chromoendoscopy still holds a place to detect especially flat lesions in ...
