000142114 001__ 142114
000142114 005__ 20240229105144.0
000142114 0247_ $$2doi$$a10.1002/mp.12931
000142114 0247_ $$2pmid$$apmid:29679498
000142114 0247_ $$2ISSN$$a0094-2405
000142114 0247_ $$2ISSN$$a1522-8541
000142114 0247_ $$2ISSN$$a2473-4209
000142114 0247_ $$2altmetric$$aaltmetric:67256379
000142114 037__ $$aDKFZ-2018-02344
000142114 041__ $$aeng
000142114 082__ $$a610
000142114 1001_ $$aRietsch, Stefan H G$$b0
000142114 245__ $$a7T ultra-high field body MR imaging with an 8-channel transmit/32-channel receive radiofrequency coil array.
000142114 260__ $$aCollege Park, Md.$$bAAPM$$c2018
000142114 3367_ $$2DRIVER$$aarticle
000142114 3367_ $$2DataCite$$aOutput Types/Journal article
000142114 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1549633414_21001
000142114 3367_ $$2BibTeX$$aARTICLE
000142114 3367_ $$2ORCID$$aJOURNAL_ARTICLE
000142114 3367_ $$00$$2EndNote$$aJournal Article
000142114 520__ $$aIn this work, a combined body coil array with eight transmit/receive (Tx/Rx) meander elements and with 24 receive-only (Rx) loops (8Tx/32Rx) was developed and evaluated in comparison with an 8-channel transmit/receive body array (8Tx/Rx) based on meander elements serving as the reference standard.Systematic evaluation of the RF array was performed on a body-sized phantom. Body imaging at 7T was performed in six volunteers in the body regions pelvis, abdomen, and heart. Coil characteristics such as signal-to-noise ratio, acceleration capability, g-factors, S-parameters, noise correlation, and B1+ maps were assessed. Safety was ensured by numerical simulations using a coil model validated by dosimetric field measurements.Meander elements and loops are intrinsically well decoupled with a maximum coupling value of -20.5 dB. Safe use of the 8Tx/32Rx array could be demonstrated. High gain in signal-to-noise ratio (33% in the subject's center) could be shown for the 8Tx/32Rx array compared to the 8Tx/Rx array. Improvement in acceleration capability in all investigations could be demonstrated. For example, the 8Tx/32Rx array provides lower g-factors in the right-left and anterior-posterior directions with R = 3 undersampling as compared to the 8Tx/Rx array using R = 2. Both arrays are very similar regarding their RF transmit performance. Excellent image quality in the investigated body regions could be achieved with the 8Tx/32Rx array.In this work, we show that a combination of eight meander elements and 24 loop receive elements is possible without impeding transmit performance. Improved SNR and g-factor performance compared to an RF array without these loops is demonstrated. Body MRI at 7T with the 8Tx/32Rx array could be accomplished in the heart, abdomen, and pelvis with excellent image quality.
000142114 536__ $$0G:(DE-HGF)POF3-315$$a315 - Imaging and radiooncology (POF3-315)$$cPOF3-315$$fPOF III$$x0
000142114 588__ $$aDataset connected to CrossRef, PubMed,
000142114 7001_ $$aOrzada, Stephan$$b1
000142114 7001_ $$aMaderwald, Stefan$$b2
000142114 7001_ $$aBrunheim, Sascha$$b3
000142114 7001_ $$aPhilips, Bart W J$$b4
000142114 7001_ $$aScheenen, Tom W J$$b5
000142114 7001_ $$0P:(DE-He78)022611a2317e4de40fd912e0a72293a8$$aLadd, Mark$$b6$$udkfz
000142114 7001_ $$aQuick, Harald H$$b7
000142114 773__ $$0PERI:(DE-600)1466421-5$$a10.1002/mp.12931$$gVol. 45, no. 7, p. 2978 - 2990$$n7$$p2978 - 2990$$tMedical physics$$v45$$x2473-4209$$y2018
000142114 909CO $$ooai:inrepo02.dkfz.de:142114$$pVDB
000142114 9101_ $$0I:(DE-588b)2036810-0$$6P:(DE-He78)022611a2317e4de40fd912e0a72293a8$$aDeutsches Krebsforschungszentrum$$b6$$kDKFZ
000142114 9131_ $$0G:(DE-HGF)POF3-315$$1G:(DE-HGF)POF3-310$$2G:(DE-HGF)POF3-300$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$aDE-HGF$$bGesundheit$$lKrebsforschung$$vImaging and radiooncology$$x0
000142114 9141_ $$y2018
000142114 915__ $$0StatID:(DE-HGF)0300$$2StatID$$aDBCoverage$$bMedline
000142114 915__ $$0StatID:(DE-HGF)0320$$2StatID$$aDBCoverage$$bPubMed Central
000142114 915__ $$0StatID:(DE-HGF)0100$$2StatID$$aJCR$$bMED PHYS : 2017
000142114 915__ $$0StatID:(DE-HGF)0200$$2StatID$$aDBCoverage$$bSCOPUS
000142114 915__ $$0StatID:(DE-HGF)0600$$2StatID$$aDBCoverage$$bEbsco Academic Search
000142114 915__ $$0StatID:(DE-HGF)0030$$2StatID$$aPeer Review$$bASC
000142114 915__ $$0StatID:(DE-HGF)0199$$2StatID$$aDBCoverage$$bClarivate Analytics Master Journal List
000142114 915__ $$0StatID:(DE-HGF)0110$$2StatID$$aWoS$$bScience Citation Index
000142114 915__ $$0StatID:(DE-HGF)0150$$2StatID$$aDBCoverage$$bWeb of Science Core Collection
000142114 915__ $$0StatID:(DE-HGF)0111$$2StatID$$aWoS$$bScience Citation Index Expanded
000142114 915__ $$0StatID:(DE-HGF)1110$$2StatID$$aDBCoverage$$bCurrent Contents - Clinical Medicine
000142114 915__ $$0StatID:(DE-HGF)1030$$2StatID$$aDBCoverage$$bCurrent Contents - Life Sciences
000142114 915__ $$0StatID:(DE-HGF)9900$$2StatID$$aIF < 5
000142114 9201_ $$0I:(DE-He78)E020-20160331$$kE020$$lMedizinische Physik in der Radiologie$$x0
000142114 980__ $$ajournal
000142114 980__ $$aVDB
000142114 980__ $$aI:(DE-He78)E020-20160331
000142114 980__ $$aUNRESTRICTED