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  Toward Densely Populated Dipole Arrays for Human Prostate Imaging at 7T: 8Tx16Rx Coaxial-End Dipole Array

Solomakha, G., May, M., Kraff, O., Scheffler, K., Quick, H., & Avdievich, N. (2024). Toward Densely Populated Dipole Arrays for Human Prostate Imaging at 7T: 8Tx16Rx Coaxial-End Dipole Array. In ISMRM & ISMRT Annual Meeting & Exhibition 2024 (pp. 310).

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Item Permalink: https://hdl.handle.net/21.11116/0000-000F-393A-1 Version Permalink: https://hdl.handle.net/21.11116/0000-000F-3989-7
Genre: Meeting Abstract

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https://www.ismrm.org/24/docs/24ToC.pdf (Abstract)
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 Creators:
Solomakha, GA1, Author                 
May, M, Author
Kraff, O, Author
Scheffler, K1, Author                 
Quick, H, Author
Avdievich, NI1, Author                 
Affiliations:
1Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497796              

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 Abstract: Motivation: To improve SNR and the SAR-performance in prostate imaging at 7T using a densely populated coaxial-end dipole array.
Goal(s): To numerically optimize and evaluate an 8Tx/16Rx coaxial-end dipole array for prostate imaging at 7T.
Approach: Geometry of a coaxial-end element was optimized to minimize peak SAR and improve coverage. In transmission, 16 coaxial-end dipoles were combined into 8 pairs. This further reduced pSAR. 8-element fractionated dipole and stripline arrays were simulated for comparison.
Results: Optimized 8Tx/16Rx coaxial-end dipole array improved SNR in prostate compared to all other 8-element arrays. SAR-performance of the developed array was better than that of other dipole arrays.
Impact: We demonstrated that densely populated 16-element coaxial-end dipole array improved SNR in the prostate by at least 10% compared to 8-element arrays. In addition, combining 16 elements in 8 pairs during transmission improved SAR-performance in comparison to the 8-channel array.

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 Dates: 2024-05
 Publication Status: Published online
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Title: ISMRM & ISMRT Annual Meeting & Exhibition 2024
Place of Event: Singapore
Start-/End Date: 2024-05-04 - 2024-05-09

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Title: ISMRM & ISMRT Annual Meeting & Exhibition 2024
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: 0520 Start / End Page: 310 Identifier: -