A Seeger's research while affiliated with University of Tuebingen and other places

... Images with SEMAR showed decreased noise, increased contrast-to-noise ratio, image quality, increased diagnostic confidence and improved visualization of anatomical structures and arteries adjacent to metal in comparison to images without SEMAR [64][65][66][67]. iMAR also improves image quality and diagnostic confidence and allows more reliable detection of aneurysm reperfusion and aneurysm residual than images without iMAR [68][69][70][71]. However, iMAR may artificially reduce contrast in adjacent arteries [68]. ...

... In recent years, MRI-based techniques gained importance in assessment of the cerebral perfusion without the need for application of contrast agent [1,[5][6][7][8][9]. Namely, arterial spin labeling (ASL) became increasingly important in the last few years [10][11][12][13]. ...

... ZOOMit-DWI was performed with the following diffusion gradient b factors: 0, 500, 1000, 1500 and 2000 s/mm 2 . ZOOMit-DWI uses the availability of fully independent parallel radiofrequency transmission coils, allowing excitation of selective "inner volumes" (12). When the field of view is reduced, the readout tends to be faster which decreases the susceptibility artifacts. ...

... Several studies demonstrated that rsEPI provides superior image quality of dMRI measurements in the ON, compared with those acquired using a conventional singleshot EPI. [98][99][100][101][102][103] The drawback of this method is its prolonged acquisition time, which limits applicability to studies of clinical populations. Simultaneous multi-slice rsEPI 104 has been proposed to mitigate this limitation, and recent work demonstrated that it reduces image distortion of dMRI measurements of the ON and, therefore, reduces the impact of image blurring caused by distortion correction procedures on tractometry results. ...

... Several studies have revealed whether there is a correlation between IMR and PMI (19,20), showing that IMR is irrelevant to PMI. Similarly, Tanimoto et al. (21) concluded that IMR is caused by LV remodeling and that there is no evidence of a link to PMI. ...

... IVI with 2D selective excitations has been applied to image prostate, 42-46 orbits, [47][48][49] kidneys, 50 and other organs. [51][52][53] Recently, Malik and Hajnal 54 proposed a 3D pTx pulse design method to improve background suppression for a TSE sequence with long echo trains and low refocusing angles. Proper background suppression is key for a successful IVI particularly for selecting small volumes for excitation. ...

... Here both zoomed SPACE sequences were capable of replacing the standard-SPACE sequence at 3 T; however intracochlear and accurate imaging of the anatomy of the internal auditory canal (IAC) nerve benefits from the zoomed pTX-SPACE sequence. 13 The aim of the present study was to evaluate the performance of a pTX-SPACE sequence improved for spatial resolution in common temporal bone diseases and to compare the image quality to a standard-SPACE sequence exhibiting the same scan time at 3 T. ...

... В то же время технические проблемы в ходе установки стента, интраоперационные осложнения, возникновение которых во многом зависит от опыта хирурга, а также повторное заполнение аневризмы в отдаленном периоде не позволяют говорить о 100 % безопасности методики. Необходимо ее совершенствование как за счет улучшения практических навыков врача, так и за счет создания более простых в эксплуатации устройств [6,7]. Довольно трудным было применение ППС 1-го поколения вследствие технической сложности правильного их размещения в просвете несущей аневризму артерии. ...

... There were a total of 1734 results from the literature search with 22 studies meeting inclusion criteria Doronina et al., 2018;Hedman et al., 2015;Henriksen et al., 1999;Kooreman et al., 2019;Kramer et al., 2013;Lakatos et al., 2018;Leischik & Spelsberg, 2014;Leischik et al., 2016;Malmgren et al., 2015;Mangold et al., 2013;Petersen et al., 2006;Prakken et al., 2010Prakken et al., , 2011Sanz-de la Garza et al., 2017;Steding-Ehrenborg et al., 2016;Stolt et al., 2000;Venckunas et al., 2016;Zeldis et al., 1978). Of the studies that met the inclusion criteria, three were case series (Kooreman et al., 2019;Leischik & Spelsberg, 2014;Mangold et al., 2013), 16 were cross sectional (Doronina et al., 2018;Hedman et al., 2015;Henriksen et al., 1999;Kramer et al., 2013;Lakatos et al., 2018;Leischik et al., 2016;Malmgren et al., 2015;Petersen et al., 2006;Prakken et al., 2010Prakken et al., , 2011Sansonio de Morais et al., 2017;Sanz-de la Garza et al., 2017;Stolt et al., 2000;Zeldis et al., 1978), and three were cohort (with historical control) studies Steding-Ehrenborg et al., 2016;Venckunas et al., 2016). ...

... The translation of pTx hardware and design methods from UHF to 3T resulted in successful application of IVI using 2D selective excitations for turbo spin echo (TSE) sequences. IVI with 2D selective excitations has been applied to image prostate, 42-46 orbits, [47][48][49] kidneys, 50 and other organs. [51][52][53] Recently, Malik and Hajnal 54 proposed a 3D pTx pulse design method to improve background suppression for a TSE sequence with long echo trains and low refocusing angles. ...