Prognosis prediction of non-enhancing T2 high signal intensity lesions in glioblastoma patients after standard treatment: application of dynamic contrast-enhanced MR imaging

2016 ◽  
Vol 27 (3) ◽  
pp. 1176-1185 ◽  
Author(s):  
Rihyeon Kim ◽  
Seung Hong Choi ◽  
Tae Jin Yun ◽  
Soon-Tae Lee ◽  
Chul-Kee Park ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Signal Intensity ◽  
Standard Treatment ◽  
High Signal Intensity ◽  
High Signal ◽  
Prognosis Prediction ◽  
Dynamic Contrast Enhanced ◽  
Contrast Enhanced ◽  
Treatment Application

scholarly journals MRI Findings of Early Myositis Ossificans without Calcification or Ossification

2018 ◽  
Vol 2018 ◽  
pp. 1-6
Author(s):  
Hexiang Wang ◽  
Pei Nie ◽  
Yang Li ◽  
Feng Hou ◽  
Cheng Dong ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Signal Intensity ◽  
Myositis Ossificans ◽  
Muscle Fibers ◽  
High Signal Intensity ◽  
High Signal ◽  
Mr Images ◽  
Contrast Enhanced ◽  
Intact Muscle ◽  
Contrast Enhanced Mri

Purpose. To characterize and evaluate the MR imaging features of early myositis ossificans (MO) without calcification or ossification. Methods. The MRI manifestations of seven patients with pathologically proven early MO were retrospectively analyzed with regard to tumor location, size, margins, signal intensity, and enhancement appearance in MR images. Additionally, the surrounding soft-tissue edema and adjacent bone change were assessed. Results. All cases (n=7) had intramuscular tumor-like masses without calcifications. The lesions appeared as isointense in T1-weighted images (T1-WI) and inhomogeneous hyperintense in T2-weighted MR images (T2-WI). On T2-WI and postcontrast T1-WI, the heterogeneously high signal intensity in the expanded muscle interspersed with a few hypointense linear structures consistent with intact muscle fibers showed “striate pattern” in the plane parallel with muscle fibers. The relatively hypointense areas with geometrical pattern consistent with the bundles of intact muscle fibers are found within the lesion with diffuse high signal intensity, displaying the “checkerboard-like pattern” in the plane vertical to muscle fibers. A “striate pattern” (n = 7) and “checkerboard-like pattern” (n = 3) in the lesion appeared in T2-WI. In contrast-enhanced MRI images, all cases showed diffuse “striate pattern” enhancement. Among them, one case demonstrated “checkerboard-like pattern” enhancement. All cases had diffuse and prominent muscle edema that preserved the muscle fascicles. For two lesions located in the deep muscle group, the adjacent bone showed bone marrow edema. Conclusion. MR imaging has unique advantages for diagnosis of early MO without calcification or ossification: the “striate pattern” and “checkerboard-like pattern” appearance shown in T2-WI and contrast-enhanced MRI images can be helpful for differential diagnosis. MRI can delineate the extent of the tumor and provides accurate anatomical information, which is important in diagnosis, treatment, and follow-up.

scholarly journals Uterine Artery Embolization for Symptomatic Fibroids with High Signal Intensity on T2-Weighted MR Imaging

2012 ◽  
Vol 13 (5) ◽  
pp. 618 ◽  
Author(s):  
Suyon Chang ◽  
Man-Deuk Kim ◽  
Myungsu Lee ◽  
Mu Sook Lee ◽  
Sung Il Park ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Signal Intensity ◽  
Uterine Artery Embolization ◽  
Uterine Artery ◽  
High Signal Intensity ◽  
High Signal ◽  
Artery Embolization

Appearances of diffuse excessive high signal intensity (DEHSI) on MR imaging following preterm birth

2010 ◽  
Vol 40 (8) ◽  
pp. 1390-1396 ◽  
Author(s):  
Anthony R. Hart ◽  
Michael F. Smith ◽  
Alan S. Rigby ◽  
Lauren I. Wallis ◽  
Elspeth H. Whitby
Keyword(s):  
Preterm Birth ◽  
Mr Imaging ◽  
Signal Intensity ◽  
High Signal Intensity ◽  
High Signal

scholarly journals Differentiation between Pure Mucinous Breast Carcinomas and Fibroadenomas with Strong High-Signal Intensity on T2-Weighted Images from Dynamic Contrast-Enhanced Magnetic Resonance Imaging

Breast Care ◽  
2017 ◽  
Vol 13 (1) ◽  
pp. 32-37
Author(s):  
Ning Qu ◽  
Yahong Luo ◽  
Tao Yu ◽  
Huihui Yu
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
High Signal Intensity ◽  
High Signal ◽  
Breast Carcinomas ◽  
Resonance Imaging ◽  
Enhancement Pattern ◽  
Dce Mri ◽  
Dynamic Contrast Enhanced ◽  
Contrast Enhanced

Objective: This study aimed to identify characteristics that can differentiate between pure mucinous breast carcinomas (PMBCs) and fibroadenomas (FAs) with strong high-signal intensity on T2-weighted images (T2-SHi) from dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI). Methods: The DCE-MRI tumor characteristics were compared and analyzed between 35 PMBCs and 70 FAs with T2-SHi. Results: Multivariate analysis revealed that delayed enhancement pattern was the only significant independent predictor (p = 0.007). Conclusion: A delayed enhancement pattern is the most reliable characteristic for differentiating PMBCs from FAs with T2-SHi from DCE-MRI.

Alterations in brain phosphorus metabolite concentrations associated with areas of high signal intensity in white matter at MR imaging.

Radiology ◽  
1992 ◽  
Vol 183 (1) ◽  
pp. 247-256 ◽  
Author(s):  
D Sappey-Marinier ◽  
R F Deicken ◽  
G Fein ◽  
G Calabrese ◽  
B Hubesch ◽  
...  
Keyword(s):  
White Matter ◽  
Mr Imaging ◽  
Signal Intensity ◽  
High Signal Intensity ◽  
High Signal ◽  
Metabolite Concentrations
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