P2B-4 Quantitative Analysis of Contrast Enhanced Subharmonic Breast Images

2006 ◽  
Author(s):  
F. Forsberg ◽  
R. Soparawala ◽  
D. A. Merton ◽  
C. W. Piccoli ◽  
J. J. Palazzo ◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
Contrast Enhanced

scholarly journals Improvement of the Diagnostic Performance of Facial Neuritis Using Contrast-Enhanced 3D T1 Black-Blood Imaging: Comparison with Contrast-Enhanced 3D T1-Spoiled Gradient-Echo Imaging

2021 ◽  
Vol 10 (9) ◽  
pp. 1850
Author(s):  
Seun-Ah Lee ◽  
Sang-Won Jo ◽  
Suk-Ki Chang ◽  
Ki-Han Kwon
Keyword(s):  
Quantitative Analysis ◽  
Diagnostic Performance ◽  
Spin Echo ◽  
Fast Spin Echo ◽  
Black Blood ◽  
Gradient Echo ◽  
Diagnostic Confidence ◽  
Contrast Enhanced ◽  
Black Blood Imaging ◽  
Spoiled Gradient Echo

This study aims to investigate the diagnostic ability of the contrast-enhanced 3D T1 black-blood fast spin-echo (T1 BB-FSE) sequence compared with the contrast-enhanced 3D T1-spoiled gradient-echo (CE-GRE) sequence in patients with facial neuritis. Forty-five patients with facial neuritis who underwent temporal bone MR imaging, including T1 BB-FSE and CE-GRE imaging, were examined. Two reviewers independently assessed the T1 BB-FSE and CE-GRE images in terms of diagnostic performance, and qualitative (diagnostic confidence and visual asymmetric enhancement) and quantitative analysis (contrast-enhancing lesion extent of the canalicular segment of the affected facial nerve (LEC) and the affected side-to-normal signal intensity ratio (rSI)). The AUCs of each reviewer, and the sensitivity and accuracy of T1 BB-FSE were significantly superior to those of CE-GRE (p < 0.05). Regarding diagnostic confidence and visual asymmetric enhancement, T1 BB-FSE tended to be rated greater than CE-GRE (p < 0.05). Additionally, in quantitative analysis, LEC and rSI of the canalicular segment on T1 BB-FSE were larger than those on CE-GRE (p < 0.05). The T1 BB-FSE sequence was significantly superior to the CE-GRE sequence, with more conspicuous lesion visualization in terms of both qualitative and quantitative aspects in patients with facial neuritis.

Abstract 11733: Assessment of Carotid Plaque Neovascularization Using Quantitative Analysis of Contrast-Enhanced Ultrasound Imaging is Useful for Risk Stratification in Patients With Coronary Artery Disease

Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Jun Nakamura ◽  
Takamitsu Nakamura ◽  
Juntaro Deyama ◽  
Daisuke Fujioka ◽  
Ken-ichi Kawabata ◽  
...  
Keyword(s):  
Risk Factors ◽  
Heart Failure ◽  
Quantitative Analysis ◽  
Carotid Artery ◽  
Carotid Plaque ◽  
Contrast Enhanced Ultrasound ◽  
Baseline Model ◽  
Contrast Enhanced ◽  
Traditional Risk Factors ◽  
Artery Disease

Introduction: Extensive neovascularization in atherosclerotic plaque has been shown to be associated with plaque progression and instability, leading to atherosclerotic cardiovascular events. Contrast-enhanced ultrasound (CEUS) of the carotid artery is a potential technique for imaging plaque neovascularization. Hypothesis: Assessment of intra-plaque neovascularization of the carotid artery using quantitative analysis of CEUS provides prognostic information in patients with coronary artery disease (CAD). Methods: This study included 206 patients with stable CAD and with carotid intima-media thickness (IMT) > 1.1 mm. They underwent a CEUS examination of the carotid artery and were followed-up prospectively for < 38 months or until a cardiac event (cardiac death, non-fatal myocardial infarction [MI], unstable angina pectoris [uAP] requiring unplanned coronary revascularization, or heart failure requiring hospitalization). The degree of contrast signals measured within the carotid plaque after the intravenous injection of contrast material was quantified by calculating the increase in mean gray scale level within the region of interest of the carotid plaque, expressed as plaque enhanced intensity. Results: During the follow-up period (3 - 38 months, mean 22.8 ± 11.8 months), 31 events occurred (2 cardiac deaths, 7 non-fatal MIs, 16 uAP, and 6 heart failure). Multivariate Cox proportional hazards analysis showed that plaque enhanced intensity was a significant predictor of cardiac events independent of traditional risk factors (HR, 1.52; 95% CI, 1.20 - 1.94; p = 0.001). The addition of plaque enhanced intensity had a significant incremental effect on the area under the ROC curve (AUC) generated using baseline model of traditional risk factors (AUC: baseline model 0.69 vs. baseline model + plaque enhanced intensity 0.78, p = 0.03). The addition of the plaque enhanced intensity to the baseline risk factors resulted in net reclassification improvement (NRI) and integrated discrimination improvement (IDI) (NRI 0.58, p = 0.003; and IDI 0.078, p = 0.03). Conclusions: The assessment of carotid plaque neovascularization using quantitative analysis of CEUS may be useful for risk stratification in patients with CAD.

Quantitative analysis of neovascular permeability in glioma by dynamic contrast-enhanced MR imaging

2012 ◽  
Vol 19 (6) ◽  
pp. 820-823 ◽  
Author(s):  
Zhongzheng Jia ◽  
Daoying Geng ◽  
Tianwen Xie ◽  
Jiaoyan Zhang ◽  
Ying Liu
Keyword(s):  
Quantitative Analysis ◽  
Mr Imaging ◽  
Dynamic Contrast Enhanced ◽  
Contrast Enhanced

New insights into uteroplacental perfusion: Quantitative analysis using Doppler and contrast-enhanced ultrasound imaging

Placenta ◽  
2013 ◽  
Vol 34 (5) ◽  
pp. 424-431 ◽  
Author(s):  
C.J. Arthuis ◽  
A. Novell ◽  
J.-M. Escoffre ◽  
F. Patat ◽  
A. Bouakaz ◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
Ultrasound Imaging ◽  
Contrast Enhanced Ultrasound ◽  
Contrast Enhanced
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