[PDF] Top 20 Retinoblastoma: Value of Dynamic Contrast Enhanced MR Imaging and Correlation with Tumor Angiogenesis

... for Dynamic Analysis. DCE-MR imaging data were analyzed by using the time-series of a region of interest, which was placed by 2 observers independently ...the tumor assessed ...the ... See full document

... of value as a biomarker in ...DCE-MR imaging parameters depends on the features of the vascular ...fore, contrast remains mostly within the vascular space and EnF correlates with v p (Fig ... See full document

... DCE-MR imaging data of 2 representative patients with PCNSL and GB is shown in Fig ...by tumor cells (ie, angiocentric growth pattern), de- stroyed, and detached from the inner endothelial membrane, ... See full document

... each dynamic image with an electronic cursor to define the region of interest in each ...of contrast material; type B, curve peaks at 33 to 60 seconds; type C, curve peaks at 63 to 180 seconds; type D, ... See full document

... detached tumor cells caused by the procedure [3–5]. The development of contrast agent enhanced imaging, such as sonogram (US), dynamic contrast enhanced multi-detector ... See full document

... Third, both the precontrast T1 value and arterial input func- tion must be accurately measured to apply a pharmacokinetic model for quantitative analysis. In the design of DCE-MR imag- ing studies, ... See full document

... very sensitive to noise that is present in multiple flip angle and DCE images, and this sensitivity results in the broadening of the baseline T1. The fixed baseline T1 can contribute to obtaining more consistent results ... See full document

... echo MR venography. Our dynamic T2*-weighted images show similar venous anatomy that is char- acteristic of primary demyelinating disease of the ...the dynamic acquisition (Fig ...histopathologic ... See full document

... injects contrast agent in the blood vessels for conducts continuous scanning, assesses the microvascular distribution and dynamic changes in blood supply in the lesions, and further gets quantitative ... See full document

... the tumor curve by a scaling factor that is a fraction of the necrotic volume, and a more robust curve will be generated if grossly necrotic areas are excluded from the region of ... See full document

... optoacoustic imaging with microbubble based dynamic contrast enhanced ultrasound ...as contrast enhanced (CE-) MSOT [27], DCE-MRI [28] or DCE computed tomography (CT) [28] use ... See full document

... perfusion-sensitive contrast-enhanced MR images were obtained with a gradient-echo echo-planar (GE-EPI) technique (2000/40) with a readout band width of 926 Hz per pixel and a maximum amplitude of 25 ... See full document

... METHODS: MR imaging data from pathologically proved glioblastomas between June 2006 to December 2013 in 58 patients (mean age, ...underwent dynamic susceptibility contrast perfusion and DWI ... See full document

... the tumor compressed the sinus, another relatively large vascular refer- ence was ...The tumor was divided into different areas (eg, rim versus core, infiltrating tumor, etc) and ROIs were measured ... See full document

... of tumor behavior and progno- ...their correlation to brain invasion provide an interesting area for future study, and in fact, this project is currently in progress at our insti- ... See full document

... Unilateral retinoblastoma in a 6-month-old boy (case 13). A, Transverse contrast-enhanced T1-weighted fat-suppressed spin-echo MR image shows a large enhancing tumor mass in the left ... See full document

... tumoral contrast enhancement relative to the choroid plexus (none; mild [less than the choroid plexus]; moderate [equal to choroid plexus]; and marked [more than choroid ...the tumor for the section where ... See full document

... and contrast agent concentration and the lack of confounding sensitivity to flow, CT-based quantifications potentially offer a more accurate rep- resentation of the tissue microvasculature compared with MR ... See full document

... weighted imaging, TR 500 ms, TE 13 ms, field of vision 350 mm×247 mm×160 mm; T1 weighted imaging, TR 6000 ms, TE 110 ms, field of vision 200 mm×200 mm; imaging at axial, sagittal and coronal, matrix ... See full document

... by dynamic susceptibility con- trast-enhanced MR imaging by empirically correcting for underestimation of the AIF due to partial volume ...of contrast agent and to then apply an empiric ... See full document