MR breast imaging : a comparative analysis of conventional and parallel imaging acquisition

Abstract

Our data suggest that the SENSE imaging protocol applied in our study is superior to conventional imaging with regard to image quality, especially for T1 postcontrast and STIR images. SENSE imaging protocols may provide an alternative to conventional sequences for contrast-enhanced MRI of the breast using 1.5-T MR scanners.

Evaluation of Image Quality of a 32-Channel versus a 12-Channel Head Coil at 1.5T for MR Imaging of the Brain

“…Previous studies that have qualitatively evaluated image quality in MR imaging have used scales of poor-toexcellent without direct comparison. [15][16][17] In contrast, we aimed for a design that would directly compare differences in image quality. While direct comparison and ranking are robust and efficient, they may not necessarily reflect the diagnostic value of perceived improvements and are subject to observer bias.…”

“…1,2,[12][13][14] Recent studies with site-specific multichannel receiver coils and more conservative acceleration of scanning times have reported improvements in diagnostic quality in nondynamic organs, such as the breast and musculoskeletal system. [15][16][17] Consequently, there is evidence that a multichannel coil and standard processing techniques can confer some of the advantages to image quality that are characteristic of increasing field strengths. 18 Thus far, few studies have evaluated the diagnostic qualities of multichannel head coils in MR imaging of the brain.…”

The influence of radial undersampling schemes on compressed sensing reconstruction in breast MRI

“…CS has been rapidly gaining popularity in different areas of science, and shown to dramatically improve the quality of undersampled images in MRI (15). Parallel imaging methods using Cartesian imaging (21–24) and CS methods (25, 26) have been used in breast DCE‐MRI to increase spatiotemporal resolution.…”

Fischer’s score criteria correlating with histopathological prognostic factors in invasive breast cancer

“…Only few reports investigating the relationship between the quantitative measurement of enhancement and prognostic factors in invasive breast cancer can be found in the literature [9][10][11][12][13]. The results of the quantitative evaluation of enhancement are variable, and the predictive effectiveness of MR imaging remains controversial.…”

“…In letteratura vi sono solo pochi lavori che indagano la relazione tra la valutazione quantitativa dell'impregnazione tumorale e i fattori prognostici del carcinoma invasivo della mammella [9][10][11][12][13]. Da tali studi emergono risultati variabili e controversi riguardanti la comparazione dell'andamento quantitativo dell'impregnazione tumorale nel tempo con gli indicatori prognostici del cancro invasivo della mammella.…”