turbo field echo
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Author(s):  
Tom Finck ◽  
Jens Gempt ◽  
Claus Zimmer ◽  
Jan S. Kirschke ◽  
Nico Sollmann

Abstract Objectives To investigate the value of contrast-enhanced (CE) turbo spin echo black blood (BB) sequences for imaging of therapy-naive high-grade gliomas (HGGs). Methods Consecutive patients with histopathologically confirmed World Health Organization (WHO) grade III or IV gliomas and no oncological treatment prior to index imaging (March 2019 to January 2020) were retrospectively included. Magnetic resonance imaging (MRI) at 3 Tesla comprised CE BB and CE turbo field echo (TFE) sequences. The lack/presence of tumor-related contrast enhancement and satellite lesions were evaluated by two readers. Sharper delineation of tumor boundaries (1, bad; 2, intermediate; 3, good delineation) and vaster expansion of HGGs into the adjacent brain parenchyma on CE BB imaging were the endpoints. Furthermore, contrast-to-noise ratios (CNRs) were calculated and compared between sequences. Results Fifty-four patients were included (mean age: 61.2 ± 15.9 years, 64% male). The vast majority of HGGs (51/54) showed contrast enhancement in both sequences, while two HGGs as well as one of six detected satellite lesions were depicted in CE BB imaging only. Tumor boundaries were significantly sharper (R1: 2.43 ± 0.71 vs. 2.73 ± 0.62, p < 0.001; R2: 2.44 ± 0.74 vs. 2.77 ± 0.60, p = 0.001), while the spread of HGGs into the adjacent parenchyma was larger when considering CE BB sequences according to both readers (larger spread in CE BB sequences: R1: 23 patients; R2: 20 patients). The CNR for CE BB sequences significantly exceeded that of CE TFE sequences (43.4 ± 27.1 vs. 32.5 ± 25.0, p = 0.0028). Conclusions Our findings suggest that BB imaging may considerably improve delineation of therapy-naive HGGs when compared with established TFE imaging. Thus, CE BB sequences might supplement MRI protocols for brain tumors. Key Points • This study investigated contrast-enhanced (CE) T1-weighted black blood (BB) sequences for improved MRI in patients with therapy-naive high-grade gliomas (HGGs). • Compared with conventionally used turbo field echo (TFE) sequences, CE BB sequences depicted tumor boundaries and spread of HGGs into adjacent parenchyma considerably better, which also showed higher CNRs. • Two enhancing tumor masses and one satellite lesion were exclusively identified in CE BB sequences, but remained undetected in conventionally used CE TFE sequences.


2020 ◽  
Vol 131 ◽  
pp. 109255
Author(s):  
Yunyun Duan ◽  
Jie Zhang ◽  
Zhizheng Zhuo ◽  
Jinli Ding ◽  
Rongkai Ju ◽  
...  

2020 ◽  
Vol 55 (12) ◽  
pp. 775-784
Author(s):  
Thomas Sartoretti ◽  
Elisabeth Sartoretti ◽  
Luuk van Smoorenburg ◽  
Árpád Schwenk ◽  
Manoj Mannil ◽  
...  

2019 ◽  
Vol 26 (4) ◽  
pp. 550-554
Author(s):  
Takakiyo Nomura ◽  
Tetsu Niwa ◽  
Soji Ozawa ◽  
Junya Oguma ◽  
Shuhei Shibukawa ◽  
...  

2018 ◽  
Vol 56 ◽  
pp. 218-219
Author(s):  
P.R. Dicarolo ◽  
A. Ciccarone ◽  
C. Defilippi ◽  
G. Zatelli

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