scholarly journals Assessment of flip angle–TR equivalence for standardized dissolved‐phase imaging of the lung with hyperpolarized 129Xe MRI

2018 ◽  
Vol 81 (3) ◽  
pp. 1784-1794 ◽  
Author(s):  
Kai Ruppert ◽  
Faraz Amzajerdian ◽  
Hooman Hamedani ◽  
Yi Xin ◽  
Luis Loza ◽  
...  
Keyword(s):  
Flip Angle ◽  
Phase Imaging ◽  
Hyperpolarized 129Xe ◽  
Dissolved Phase

scholarly journals Origin of Dissolved-phase Hyperpolarized 129Xe Signal in the Mouse Chest Based on Experimental Evidence from Extensive Magnetic Resonance Measurements

2011 ◽  
Vol 10 (3) ◽  
pp. 149-154 ◽  
Author(s):  
Michiko NARAZAKI ◽  
Atsuomi KIMURA ◽  
Tetsuya WAKAYAMA ◽  
Hirohiko IMAI ◽  
Hideaki FUJIWARA
Keyword(s):  
Magnetic Resonance ◽  
Experimental Evidence ◽  
Hyperpolarized 129Xe ◽  
Dissolved Phase

scholarly journals Validation of 10-Minute Delayed Hepatocyte Phase Imaging with 30° Flip Angle in Gadoxetic Acid-Enhanced MRI for the Detection of Liver Metastasis

PLoS ONE ◽  
2015 ◽  
Vol 10 (10) ◽  
pp. e0139863 ◽  
Author(s):  
Dahye Lee ◽  
Eun-Suk Cho ◽  
Dae Jung Kim ◽  
Joo Hee Kim ◽  
Jeong-Sik Yu ◽  
...  
Keyword(s):  
Liver Metastasis ◽  
Flip Angle ◽  
Gadoxetic Acid ◽  
Phase Imaging ◽  
Enhanced Mri

Optimization of the Flip Angle and Scan Timing in Hepatobiliary Phase Imaging Using T1-Weighted, CAIPIRINHA GRE Imaging

2018 ◽  
Vol 22 (1) ◽  
pp. 1
Author(s):  
Jeongjae Kim ◽  
Bong Soo Kim ◽  
Jeong Sub Lee ◽  
Seung Tae Woo ◽  
Guk Myung Choi ◽  
...  
Keyword(s):  
Flip Angle ◽  
Hepatobiliary Phase ◽  
Phase Imaging

scholarly journals Feasibility of 10-Minute Delayed Hepatocyte Phase Imaging Using a 30° Flip Angle in Gd-EOB-DTPA-Enhanced Liver MRI for the Detection of Hepatocellular Carcinoma in Patients with Chronic Hepatitis or Cirrhosis

PLoS ONE ◽  
2016 ◽  
Vol 11 (12) ◽  
pp. e0167701 ◽  
Author(s):  
Inhwan Jeon ◽  
Eun-Suk Cho ◽  
Joo Hee Kim ◽  
Dae Jung Kim ◽  
Jeong-Sik Yu ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Chronic Hepatitis ◽  
Flip Angle ◽  
Phase Imaging ◽  
Liver Mri

Effects of intravenous gadolinium administration and flip angle on the assessment of liver fat signal fraction with opposed-phase and in-phase imaging

2008 ◽  
Vol 28 (1) ◽  
pp. 246-251 ◽  
Author(s):  
Takeshi Yokoo ◽  
Julie M. Collins ◽  
Robert F. Hanna ◽  
Mark Bydder ◽  
Michael S. Middleton ◽  
...  
Keyword(s):  
Flip Angle ◽  
Liver Fat ◽  
Phase Imaging ◽  
Gadolinium Administration

Navigator flip angle optimization for free-breathing T1-weighted hepatobiliary phase imaging with gadoxetic acid

2013 ◽  
Vol 40 (5) ◽  
pp. 1129-1136 ◽  
Author(s):  
Jens-P. Kühn ◽  
James H. Holmes ◽  
Anja C.S. Brau ◽  
Yuji Iwadate ◽  
Diego Hernando ◽  
...  
Keyword(s):  
Free Breathing ◽  
Flip Angle ◽  
Gadoxetic Acid ◽  
Hepatobiliary Phase ◽  
Phase Imaging

Regional investigation of lung function and microstructure parameters by localized 129 Xe chemical shift saturation recovery and dissolved-phase imaging: A reproducibility study

2018 ◽  
Vol 81 (1) ◽  
pp. 13-24 ◽  
Author(s):  
Agilo Luitger Kern ◽  
Marcel Gutberlet ◽  
Kun Qing ◽  
Andreas Voskrebenzev ◽  
Filip Klimeš ◽  
...  
Keyword(s):  
Chemical Shift ◽  
Lung Function ◽  
Saturation Recovery ◽  
Phase Imaging ◽  
Reproducibility Study ◽  
Microstructure Parameters ◽  
Dissolved Phase

Velocity Window for Detection of Flow with MR Phase Imaging

1996 ◽  
Vol 34 (6) ◽  
pp. 729
Author(s):  
Tae Hwan Lim ◽  
Nuno J Tavares ◽  
Nola M Hylton ◽  
Charles B Higgins
Keyword(s):  
Phase Imaging

99mTc-DPD SPECT/CT for localisation of inflammatory and chronic osteoarthritis of the foot and ankle

2016 ◽  
Vol 55 (04) ◽  
pp. 145-150 ◽  
Author(s):  
Lutz Freudenberg ◽  
Hinrich Wieder ◽  
Jens Stollfuss
Keyword(s):  
Bone Metabolism ◽  
Late Phase ◽  
Blood Pool ◽  
Phase Imaging ◽  
Bone Imaging ◽  
Foot And Ankle ◽  
Planar Imaging ◽  
Selective Treatment ◽  
Complex Anatomy ◽  
Three Phase

SummaryAim: The precise localisation of osteoarthritic and inflammatory changes is crucial for selective treatment planning of radiosynovectomy (RSV). The present study evaluated the diagnostic accuracy of planar bone imaging and SPECT for the detection of pathological bone metabolism and inflammation in joints of the foot and ankle, compared with SPECT/CT. Patients, methods: 39 patients (mean age 65.6 ± 11.1 years) with suspected inflammatory osteoarthritis underwent SPECT/CT of the feet. After injection of approximately 500 MBq 99mTc DPD, all patients had three-phase planar bone imaging and late-phase hybrid SPECT/CT. late-phase SPECT, and CT of the foot. Increased bone metabolism and blood-pool was assigned to the respective joint of the fore-, mid-, and hindfoot, using SPECT/CT as the reference standard. Results: Overall, SPECT had a higher sensitivity than planar imaging (0.80 vs 0.68, n.s.). The advantage of SPECT was most obvious in the anatomically complex midfoot area (0.63 vs 0.26, p < 0.05) and less obvious in the forefoot (0.85 vs 0.79, n.s.) and hindfoot (0.89 vs 0.89, n.s.). The overall concordance (Cohen`s Kappa) between SPECT/CT and planar (late-phase) imaging and SPECT was high for the forefoot and the hindfoot (planar: 0.78/0.81; SPECT 0.86/0.88) and comparatively low for the midfoot (planar: 0.27; SPECT 0.61). Conclusion: SPECT was significantly superior to planar bone imaging for the detection of joint lesions in the midfoot. The differences between SPECT and planar imaging in the fore- and hindfoot were not significant, most likely due to the inherently less complex anatomy. Compared with SPECT alone, a benefit from the use of SPECT/CT can be observed in the midfoot region where it facilitates the identification of the correct joint for RSV.

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