scholarly journals Evaluation of a free-breathing myocardial T1 mapping using magnetization-prepared slice interleaved spoiled gradient echo imaging in patient

2015 ◽  
Vol 17 (S1) ◽  
Author(s):  
Jihye Jang ◽  
Sébastien Roujol ◽  
Tamer A Basha ◽  
Shingo Kato ◽  
Sophie Berg ◽  
...  
Keyword(s):  
T1 Mapping ◽  
Free Breathing ◽  
Gradient Echo ◽  
Myocardial T1 ◽  
Gradient Echo Imaging ◽  
Spoiled Gradient Echo

scholarly journals Free-breathing myocardial T1 mapping using magnetization-prepared slice interleaved spoiled gradient echo imaging

2015 ◽  
Vol 17 (S1) ◽  
Author(s):  
Sébastien Roujol ◽  
Jihye Jang ◽  
Tamer A Basha ◽  
Sebastian Weingartner ◽  
Sophie Berg ◽  
...  
Keyword(s):  
T1 Mapping ◽  
Free Breathing ◽  
Gradient Echo ◽  
Myocardial T1 ◽  
Gradient Echo Imaging ◽  
Spoiled Gradient Echo

Myocardial T1 mapping for patients with implanted cardiac devices using wideband inversion recovery spoiled gradient echo readout

2016 ◽  
Vol 77 (4) ◽  
pp. 1495-1504 ◽  
Author(s):  
Jiaxin Shao ◽  
Shams Rashid ◽  
Pierangelo Renella ◽  
Kim-Lien Nguyen ◽  
Peng Hu
Keyword(s):  
T1 Mapping ◽  
Inversion Recovery ◽  
Gradient Echo ◽  
Cardiac Devices ◽  
Myocardial T1 ◽  
Spoiled Gradient Echo

Comparison of myocardial T1 mapping during breath-holding and free-breathing

2021 ◽  
pp. 1-5
Author(s):  
Hideharu Oka ◽  
Kouichi Nakau ◽  
Sadahiro Nakagawa ◽  
Yuki Kobayashi ◽  
Rina Imanishi ◽  
...  
Keyword(s):  
Cross Sections ◽  
T1 Mapping ◽  
Free Breathing ◽  
Breath Holding ◽  
Basal Region ◽  
Analysis Method ◽  
Imaging Analysis ◽  
Myocardial T1 ◽  
The Mean ◽  
Almost All

Abstract Background: T1 mapping is a recently developed imaging analysis method that allows quantitative assessment of myocardial T1 values obtained using MRI. In children, MRI is performed under free-breathing. Thus, it is important to know the changes in T1 values between free-breathing and breath-holding. This study aimed to compare the myocardial T1 mapping during breath-holding and free-breathing. Methods: Thirteen patients and eight healthy volunteers underwent cardiac MRI, and T1 values obtained during breath-holding and free-breathing were examined and compared. Statistical differences were determined using the paired t-test. Results: The mean T1 values during breath-holding were 1211.1 ± 39.0 ms, 1209.7 ± 37.4 ms, and 1228.9 ± 52.5 ms in the basal, mid, and apical regions, respectively, while the mean T1 values during free-breathing were 1165.1 ± 69.0 ms, 1103.7 ± 55.8 ms, and 1112.0 ± 81.5 ms in the basal, mid, and apical regions, respectively. The T1 values were lower during free-breathing than during breath-holding in almost all segments (basal: p = 0.008, mid: p < 0.001, apical: p < 0.001). The mean T1 values in each cross section were 3.1, 7.8, and 7.7% lower during free-breathing than during breath-holding in the basal, mid, and apical regions, respectively. Conclusions: We found that myocardial T1 values during free-breathing were about 3–8% lower in all cross sections than those during breath-holding. In free-breathing, it may be difficult to assess myocardial T1 values, except in the basal region, because of underestimation; thus, the findings should be interpreted with caution, especially in children.

Relationship between the trochlear groove angle and patellar cartilage morphology defined by 3D spoiled gradient-echo imaging

2011 ◽  
Vol 41 (5) ◽  
pp. 589-594
Author(s):  
Yuko Harada ◽  
Osamu Tokuda ◽  
Kouji Fukuda ◽  
Gen Shiraishi ◽  
Tetsuhisa Motomura ◽  
...  
Keyword(s):  
Trochlear Groove ◽  
Gradient Echo ◽  
Patellar Cartilage ◽  
Gradient Echo Imaging ◽  
Spoiled Gradient Echo

scholarly journals Estimation of Perilymph Enhancement after Intratympanic Administration of Gd-DTPA by Fast T1-mapping with a Dual Flip Angle 3D Spoiled Gradient Echo Sequence

2013 ◽  
Vol 12 (3) ◽  
pp. 223-228 ◽  
Author(s):  
Shinji NAGANAWA ◽  
Masahiro YAMAZAKI ◽  
Hisashi KAWAI ◽  
Kiminori BOKURA ◽  
Michihiko SONE ◽  
...  
Keyword(s):  
T1 Mapping ◽  
Flip Angle ◽  
Gradient Echo ◽  
Spoiled Gradient Echo
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