The differential enhancement pattern of contrast enhanced ultrasound and magnetic resonance imaging characteristics in hepatic angiomyolipoma: 7 case reports

2019 ◽  
Vol 71 (1) ◽  
pp. 17-26 ◽  
Author(s):  
Wen-Tao Kong ◽  
Min Tang ◽  
Yu-Dong Qiu ◽  
Jiong Shi ◽  
Min Wu
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Case Reports ◽  
Contrast Enhanced Ultrasound ◽  
Resonance Imaging ◽  
Enhancement Pattern ◽  
Hepatic Angiomyolipoma ◽  
Imaging Characteristics ◽  
Contrast Enhanced

scholarly journals Comparison of Diagnostic Medical Sonography, Computed Tomography, Magnetic Resonance Imaging, and Contrast-Enhanced Ultrasound in the Investigation of Renal Lesions

2019 ◽  
Vol 36 (1) ◽  
pp. 37-44
Author(s):  
Jessica T. Prince
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Imaging Techniques ◽  
Imaging Modalities ◽  
Contrast Enhanced Ultrasound ◽  
Resonance Imaging ◽  
Renal Masses ◽  
Renal Lesions ◽  
Contrast Enhanced

This review explores the classification and evaluation of suspicious renal lesions across several radiologic imaging modalities. Diagnostic medical sonography (DMS), computed tomography (CT), magnetic resonance imaging (MRI), and contrast-enhanced ultrasound (CEUS) are the primary modalities used to investigate questionable lesions found within the kidneys. Renal masses may range from completely benign to malignant. They are classified based on many different features and characteristics. These lesions may be simple cystic, complex cystic, or solid in nature. Masses may also exhibit varying degrees of vascularity, septations, and calcifications. The discussed imaging modalities have varying strengths, limitations, and implications for use. Imaging techniques may be used independently or in conjunction to best diagnose and treat a patient with a suspicious renal mass. The aim of this review was to describe the diagnostic value of the imaging modalities (DMS, CT, MRI, and CEUS) and their role in the evaluation of suspicious renal lesions.

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.

Paediatric focal nodular hyperplasia: A case study of typical contrast-enhanced ultrasound findings with quantitative analysis and correlated with magnetic resonance imaging

Ultrasound ◽  
2020 ◽  
pp. 1742271X2094776
Author(s):  
Andreas Panayiotou ◽  
Vasileios Rafailidis ◽  
Annamaria Deganello ◽  
Maria Sellars ◽  
Paul S Sidhu
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Focal Nodular Hyperplasia ◽  
Ultrasound Examination ◽  
Liver Lesion ◽  
Contrast Enhanced Ultrasound ◽  
Resonance Imaging ◽  
Contrast Enhanced ◽  
Nodular Hyperplasia ◽  
Benign Liver

Introduction Focal nodular hyperplasia, a benign liver tumour, is the second most common focal benign liver lesion, after a cavernous haemangioma. Contrast-enhanced ultrasound is used increasingly for the diagnostic work up and follow-up of focal liver lesions in adults, but is particularly valuable in the paediatric population, with the ability to reduce radiation and the nephrotoxic contrast agents used in computed tomography or magnetic resonance imaging. Confident recognition of focal nodular hyperplasia is important; it is benign, usually asymptomatic, of no clinical significance, of no clinical consequence or malignant potential. We present a case of focal nodular hyperplasia of the liver with its characteristic findings on conventional ultrasound, contrast-enhanced ultrasound with quantitative analysis and correlated with magnetic resonance imaging. Case presentation: A 15-year-old female with right upper quadrant abdominal pain was referred for liver ultrasound. A focal liver lesion was detected on B-mode ultrasound examination, and colour Doppler demonstrated no specific features. Contrast-enhanced ultrasound examination demonstrated early arterial enhancement, with a characteristic spoke-wheel pattern, centrifugal uniform filling of the lesion on the late arterial phase and sustained enhancement on the portal venous phase. Quantitative contrast-enhanced ultrasound has been performed, showing a typical curve of enhancement, as well as characteristic parametric images, supporting the interpretation of contrast-enhanced ultrasound and assisting the diagnosis. Magnetic resonance imaging demonstrated a central T2 hyperintense scar and similar enhancement characteristics as contrast-enhanced ultrasound on T1 gadolinium-enhanced sequences. Conclusion Contrast-enhanced ultrasound is a useful technique for the differentiation of benign from malignant liver lesions and has the potential to establish the diagnosis of focal nodular hyperplasia, based on the enhancement pattern, which is similar to that observed on magnetic resonance imaging but can be better appreciated with superior temporal, contrast and spatial resolution of contrast-enhanced ultrasound.

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