BACKGROUND AND PURPOSE: MR imaging of moving patients can be challenging and motion correction techniques have been proposed though some have associated new artifacts. The objective of this study was to semiquantitatively compare brain MR images of moving patients obtained at 1.5T by using partially radial and rectilinear acquisition techniques. MATERIALS AND METHODS: FLAIR, T2-, T1-, and contrast-enhanced T1-weighted image sets of 25 patients (14-94 years) obtained by using BLADE (like PROPELLER, a partially radial acquisition) and rectilinear techniques in the same imaging session were compared by 2 neuroradiologists in terms of extent of the motion artifact, image quality, and lesion visibility. ICC between opinions of the evaluators was calculated. RESULTS: Of the total of 70 image sets, the motion artifact was small in the partially radial images in 43 and in the rectilinear images in 13, and the opinions of the evaluators were discordant in the remaining 14 sets (ICC = 0.63, P < .05). The quality of partially radial images was higher for 36 sets versus 9 rectilinear sets, with disagreement between the 2 evaluators in the remaining 25 (ICC = 0.15, P < .05). Pathologic lesions were better characterized on 37 sets of partially radial images versus 13 sets of rectilinear images, and opinions of the evaluators differed in 20 sets (ICC = 0.90, P < .05). The neuroradiologists deemed 4 sets of rectilinear images nondiagnostic compared with only 1 set of radial images. CONCLUSIONS: The data demonstrate that our application of BLADE sequences reduces the extent of motion artifacts in brain images of moving patients, improving image quality and lesion characterization.
BACKGROUND AND PURPOSE: MR imaging of moving patients can be challenging and motion correction techniques have been proposed though some have associated new artifacts. The objective of this study was to semiquantitatively compare brain MR images of moving patients obtained at 1.5T by using partially radial and rectilinear acquisition techniques. MATERIALS AND METHODS: FLAIR, T2-, T1-, and contrast-enhanced T1-weighted image sets of 25 patients (14-94 years) obtained by using BLADE (like PROPELLER, a partially radial acquisition) and rectilinear techniques in the same imaging session were compared by 2 neuroradiologists in terms of extent of the motion artifact, image quality, and lesion visibility. ICC between opinions of the evaluators was calculated. RESULTS: Of the total of 70 image sets, the motion artifact was small in the partially radial images in 43 and in the rectilinear images in 13, and the opinions of the evaluators were discordant in the remaining 14 sets (ICC = 0.63, P < .05). The quality of partially radial images was higher for 36 sets versus 9 rectilinear sets, with disagreement between the 2 evaluators in the remaining 25 (ICC = 0.15, P < .05). Pathologic lesions were better characterized on 37 sets of partially radial images versus 13 sets of rectilinear images, and opinions of the evaluators differed in 20 sets (ICC = 0.90, P < .05). The neuroradiologists deemed 4 sets of rectilinear images nondiagnostic compared with only 1 set of radial images. CONCLUSIONS: The data demonstrate that our application of BLADE sequences reduces the extent of motion artifacts in brain images of moving patients, improving image quality and lesion characterization.
Authors: Bernd J Wintersperger; Val M Runge; Jonmenjoy Biswas; C Brett Nelson; Alto Stemmer; Alexander B Simonetta; Maximilian F Reiser; L G Naul; Stefan O Schoenberg Journal: Invest Radiol Date: 2006-07 Impact factor: 6.016
Authors: Kirsten P Forbes; James G Pipe; John P Karis; Victoria Farthing; Joseph E Heiserman Journal: AJNR Am J Neuroradiol Date: 2003-05 Impact factor: 3.825
Authors: Thekla von Kalle; Bernd Blank; Claudia Fabig-Moritz; Peter Müller-Abt; Michael Zieger; Katrin Wohlfarth; Peter Winkler Journal: Pediatr Radiol Date: 2009-10-01
Authors: Michael Meier-Schroers; Christian Marx; Frederic Carsten Schmeel; Karsten Wolter; Jürgen Gieseke; Wolfgang Block; Alois Martin Sprinkart; Frank Traeber; Winfried Willinek; Hans Heinz Schild; Guido Matthias Kukuk Journal: Eur Radiol Date: 2017-07-07 Impact factor: 5.315
Authors: Chandan Ganesh Bangalore Yogananda; Bhavya R Shah; Maryam Vejdani-Jahromi; Sahil S Nalawade; Gowtham K Murugesan; Frank F Yu; Marco C Pinho; Benjamin C Wagner; Bruce Mickey; Toral R Patel; Baowei Fei; Ananth J Madhuranthakam; Joseph A Maldjian Journal: Neuro Oncol Date: 2020-03-05 Impact factor: 12.300
Authors: Vince I Madai; Federico C von Samson-Himmelstjerna; Miriam Bauer; Katharina L Stengl; Matthias A Mutke; Elena Tovar-Martinez; Jens Wuerfel; Matthias Endres; Thoralf Niendorf; Jan Sobesky Journal: PLoS One Date: 2012-05-31 Impact factor: 3.240