Cardiac chamber quantification using magnetic resonance imaging at 7 Tesla—a pilot study

Knobelsdorff‐Brenkenhoff, Florian von; Frauenrath, Tobias; Prothmann, Marcel; Dieringer, Matthias A.; Hezel, Fabian; Renz, Wolfgang; Kretschel, Kerstin; Niendorf, Thoralf; Schulz‐Menger, Jeanette

doi:10.1007/s00330-010-1888-2

Cited by 57 publications

(61 citation statements)

References 28 publications

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“…11 However, only a limited amount of research on ultra-highfield (7 T) body imaging has been reported within the last few years, mostly focusing on 7 T cardiac MRI. [12][13][14][15][16][17][18] These promising preliminary results demonstrate the high potential of ultra-high-field imaging. To our knowledge, no other study demonstrating the feasibility of Gd-enhanced 7 T abdominal imaging has yet been published.…”

mentioning

confidence: 83%

Dynamic Contrast-Enhanced Renal MRI at 7 Tesla

Umutlu¹,

Kraff²,

Orzada³

et al. 2011

Investigative Radiology

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confidence: 83%

Dynamic Contrast-Enhanced Renal MRI at 7 Tesla

Umutlu¹,

Kraff²,

Orzada³

et al. 2011

Investigative Radiology

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“…This caveat can be relaxed by using many element coil arrays tailored for cardiac MR [60]–[64] or by moving to CMR at magnetic field strengths of B 0 ≥3.0 T [64]–[69].…”

Section: Discussionmentioning

confidence: 99%

Accelerated Fast Spin-Echo Magnetic Resonance Imaging of the Heart Using a Self-Calibrated Split-Echo Approach

et al. 2014

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PurposeDesign, validation and application of an accelerated fast spin-echo (FSE) variant that uses a split-echo approach for self-calibrated parallel imaging.MethodsFor self-calibrated, split-echo FSE (SCSE-FSE), extra displacement gradients were incorporated into FSE to decompose odd and even echo groups which were independently phase encoded to derive coil sensitivity maps, and to generate undersampled data (reduction factor up to R = 3). Reference and undersampled data were acquired simultaneously. SENSE reconstruction was employed.ResultsThe feasibility of SCSE-FSE was demonstrated in phantom studies. Point spread function performance of SCSE-FSE was found to be competitive with traditional FSE variants. The immunity of SCSE-FSE for motion induced mis-registration between reference and undersampled data was shown using a dynamic left ventricular model and cardiac imaging. The applicability of black blood prepared SCSE-FSE for cardiac imaging was demonstrated in healthy volunteers including accelerated multi-slice per breath-hold imaging and accelerated high spatial resolution imaging.ConclusionSCSE-FSE obviates the need of external reference scans for SENSE reconstructed parallel imaging with FSE. SCSE-FSE reduces the risk for mis-registration between reference scans and accelerated acquisitions. SCSE-FSE is feasible for imaging of the heart and of large cardiac vessels but also meets the needs of brain, abdominal and liver imaging.

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“…While most of the scanners currently used in clinics are of 1.5-3 T, higher magnetic fields can now be reached. 15-20 T scanners have become available, mostly for animal studies but also for human, especially in neurological [3], musculoskeletal [4], or cardiac [5] imaging where high sensitivity and resolution are required. These hardware improvements come along with software evolutions and with the design of new RF pulse sequences, allowing visualization of tissues of interest with increasing accuracy and sensitivity by, for example, suppression of unwanted tissue signal during image acquisition or by making possible the production of three-dimensional images.…”

Section: Gadolinium As a Contrast Agent In Mrimentioning

confidence: 99%