Shielded‐coaxial‐cable coils as receive and transceive array elements for 7T human MRI
نویسندگان
چکیده
منابع مشابه
Comprehensive numerical study of 7T transmit-only, receive-only array coils
Purpose: The Nova 7 T RF coil, which has single-channel transmission (TX) [1] and 24 or 32 channel reception (RX) [2,3] (Nova Medical, Wilmington, MA) is notable for its excellent signal to noise (SNR) performance. The coil designers have demonstrated that separate dedicated coils for transmission and reception (TX-only, RX-only) perform better than a combined-element transceiver coil. One disa...
متن کاملScreen-printed flexible MRI receive coils
Magnetic resonance imaging is an inherently signal-to-noise-starved technique that limits the spatial resolution, diagnostic image quality and results in typically long acquisition times that are prone to motion artefacts. This limitation is exacerbated when receive coils have poor fit due to lack of flexibility or need for padding for patient comfort. Here, we report a new approach that uses p...
متن کاملOptimizing 7T Spine Array Design through Offsetting of Transmit and Receive Elements and Quadrature Excitation
Introduction MRI spine imaging at 3T has been found to offer improvement over 1.5T in terms of SNR and tissue delineation, but with new challenges related to B1 and B0 inhomogeneity [1]. At 7T there is an additional problem of a lack of commercially available RF coils and the opposite twisting of B1 and B1 [2] complicates coil design. Recently, Kraff et al demonstrated an 8 channel transceive a...
متن کاملA Concentrically Shielded Transceive Array Coil Optimized for B1+ Inhomogeneity Correction at 7T
Introduction: A multiple channel transceive array offers the possibility for flexible mitigation of the transmit inhomogeneity at high fields through either B1 + shimming or by the use of spatially tailored RF excitation pulses accelerated to useful durations using parallel transmit (pTx). Accelerating the transmit RF pulses requires a distinct spatial sensitivity profile. One of the major prob...
متن کاملA 7T ′′Capless′′ Transceive Breast Coil
Introduction Apart from being a non-invasive imaging modality, MR breast imaging can also provide high spatial and temporal resolution images of the breast, which is advantageous for fast and accurate diagnosis of disease. Studies have shown that it is possible to acquire high resolution breast images at ultra high fields with dedicated transceive RF breast coils that can transmit homogenous lo...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Magnetic Resonance in Medicine
سال: 2019
ISSN: 0740-3194,1522-2594
DOI: 10.1002/mrm.27964