RATIONALE AND OBJECTIVES: We sought to explore the feasibility of magnetic resonance imaging (MRI) of the prostate at 3T, with the knowledge of potential drawbacks of MRI at high field strengths. MATERIAL AND METHOD: MRI, dynamic MRI, and 1H-MR spectroscopic imaging were performed in 10 patients with prostate cancer on 1.5T and 3T whole-body scanners. Comparable scan protocols were used, and additional high-resolution measurements at 3T were acquired. For both field strengths the signal-to-noise ratio was calculated and image quality was assessed. RESULT: At 3T the signal-to-noise ratio improved. This resulted in increased spatial MRI resolution, which significantly improved anatomic detail. The increased spectral resolution improved the separation of individual resonances in MRSI. Contrast-enhanced time-concentration curves could be obtained with a doubled temporal resolution. CONCLUSIONS: Initial results of endorectal 3T 1H-MR spectroscopic imaging in prostate cancer patients showed potential advantages: the increase in spatial, temporal, and spectral resolution at higher field strength may result in an improved accuracy in delineating and staging prostate cancer.
RATIONALE AND OBJECTIVES: We sought to explore the feasibility of magnetic resonance imaging (MRI) of the prostate at 3T, with the knowledge of potential drawbacks of MRI at high field strengths. MATERIAL AND METHOD: MRI, dynamic MRI, and 1H-MR spectroscopic imaging were performed in 10 patients with prostate cancer on 1.5T and 3T whole-body scanners. Comparable scan protocols were used, and additional high-resolution measurements at 3T were acquired. For both field strengths the signal-to-noise ratio was calculated and image quality was assessed. RESULT: At 3T the signal-to-noise ratio improved. This resulted in increased spatial MRI resolution, which significantly improved anatomic detail. The increased spectral resolution improved the separation of individual resonances in MRSI. Contrast-enhanced time-concentration curves could be obtained with a doubled temporal resolution. CONCLUSIONS: Initial results of endorectal 3T 1H-MR spectroscopic imaging in prostate cancerpatients showed potential advantages: the increase in spatial, temporal, and spectral resolution at higher field strength may result in an improved accuracy in delineating and staging prostate cancer.
Authors: B Nicolas Bloch; Elizabeth M Genega; Daniel N Costa; Ivan Pedrosa; Martin P Smith; Herbert Y Kressel; Long Ngo; Martin G Sanda; William C Dewolf; Neil M Rofsky Journal: Eur Radiol Date: 2012-06-03 Impact factor: 5.315
Authors: Stephan H Polanec; Katja Pinker-Domenig; Peter Brader; Dietmar Georg; Shahrokh Shariat; Claudio Spick; Martin Susani; Thomas H Helbich; Pascal A Baltzer Journal: World J Urol Date: 2015-09-25 Impact factor: 4.226
Authors: N Morakkabati-Spitz; P J Bastian; A Meissner; F Träber; J Gieseke; H H Schild; S C Müller Journal: Urologe A Date: 2006-06 Impact factor: 0.639
Authors: Junichi Tokuda; Gregory S Fischer; Csaba Csoma; Simon P DiMaio; David G Gobbi; Gabor Fichtinger; Clare M Tempany; Nobuhiko Hata Journal: Med Image Comput Comput Assist Interv Date: 2008