Initial Experiences with In Vivo Right Coronary Artery Human MR Vessel Wall Imaging at 3 Tesla

Botnar, René M.; Stuber, Matthias; Lamerichs, Rolf; Smink, Jouke; Fischer, Stefan; Harvey, Paul R.; Manning, Warren J.

doi:10.1081/jcmr-120025232

Cited by 56 publications

(33 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A previous study using the DIR-GRE sequence which performed coronary vessel wall imaging at 3T found that, after adjustments for longer T1 times and the frequency offset for fat suppression, an SNR gain of 50% could be achieved in cross-sectional images (12). GE spiral imaging is sensitive to off-resonance effects, which is especially pronounced in cardiac imaging where the FOV contains numerous air-tissue interfaces.…”

Section: Discussionmentioning

confidence: 99%

Cross‐sectional and In‐plane coronary vessel wall imaging using a local inversion prepulse and spiral read‐out: A comparison between 1.5 and 3 tesla

Peel

Hussain

Schaeffter

et al. 2011

Magnetic Resonance Imaging

View full text Add to dashboard Cite

Purpose: To compare cross-sectional and in-plane coronary vessel wall imaging using a spiral readout at 1.5 and 3 Tesla (T). Materials and Methods:Free-breathing coronary vessel wall imaging using a local inversion technique and spiral readout was implemented. Images were acquired in ten healthy adult subjects on a 3T clinical scanner using a 32-element cardiac coil and repeated on a 1.5T clinical scanner using a 5-element coil.Results: Cross-sectional and in-plane spiral vessel wall imaging was performed at both 1.5 and 3T. In cross-sectional images, artifact scores were superior at 1.5T (P < 0.05) but no significant difference was found in image quality scores compared with 3T. Image quality (P < 0.01) and artifact scores (P < 0.01) were found to be superior for inplane images at 1.5T. Vessel wall sharpness in the in-plane orientation was also found to be higher at 1.5T (P < 0.03). Conclusion:Although excellent in-plane coronary vessel wall images can be acquired at 3T, the overall robustness may be affected by off-resonance blurring due to increased B0 inhomogeneity compared with 1.5T.

show abstract

Section: Discussionmentioning

confidence: 99%

Cross‐sectional and In‐plane coronary vessel wall imaging using a local inversion prepulse and spiral read‐out: A comparison between 1.5 and 3 tesla

Peel

Hussain

Schaeffter

et al. 2011

Magnetic Resonance Imaging

View full text Add to dashboard Cite

show abstract

“…During the developmental phase of our protocol, we initially focused on the use of dual-inversion FSE imaging as well. However, based on our prior experience with black-blood imaging of the coronary vessel wall at 1.5T and 3T (30,31), we decided to simultaneously work on the development of a dual-inversion SPGRE technique. We found that both the visual sharpness and contrast of the carotid vessel wall were superior on the SPGRE images as compared to those obtained with the more conventional FSE approach.…”

Section: Discussionmentioning

confidence: 99%

Assessment of the carotid artery by MRI at 3T: A study on reproducibility

Dehnavi

Doornbos

Tamsma

et al. 2007

Magnetic Resonance Imaging

Self Cite

View full text Add to dashboard Cite

Purpose:To examine the reproducibility of carotid artery dimension measurements using 3T MRI. Materials and Methods:Ten healthy volunteers underwent three scans on two occasions for assessment of total vessel wall area (TVWA), total luminal area (TLA), and minimum (MinT) and maximum (MaxT) vessel wall thickness. A double inversion-recovery (IR) fast gradient-echo (FGRE) sequence was used on a commercial 3T system. During the first visit the subjects were scanned twice. The third scan was performed at least four days later. One observer traced all scans, and a second observer retraced the first scan series. Conclusion:With the use of a commercial 3T MR system, TVWA, TLA, and wall thickness measurements of the carotid artery can be assessed with good reproducibility.

show abstract

“…In earlier studies conducted in both healthy adults and in patients, two-dimensional DIR fast spin echo imaging (19,20) or three-dimensional DIR spiral imaging (22) was used at 1.5 T. At 3 T, the first coronary vessel wall data were acquired using a three-dimensional, free-breathing, segmented, k-space, gradient echo imaging technique (48). Three-dimensional imaging was utilized in this early 3-T study for sufficient SNR.…”

Section: Discussionmentioning

confidence: 99%