Comparison of Phased-Array 3.0-T and Endorectal 1.5-T Magnetic Resonance Imaging in the Evaluation of Local Staging Accuracy for Prostate Cancer
- 1 July 2007
- journal article
- research article
- Published by Ovid Technologies (Wolters Kluwer Health) in Journal of Computer Assisted Tomography
- Vol. 31 (4), 534-538
- https://doi.org/10.1097/01.rct.0000250108.85799.e1
Abstract
To retrospectively evaluate local staging accuracy for prostate cancer at 3.0-T magnetic resonance imaging (MRI) by comparing with that at 1.5-T MRI. Two groups, each consisting of 54 patients, were included by matching for age, prostate specific antigen, and Gleason score. Before radical prostatectomy, 1 group underwent 3.0-T MRI using a phased-array coil, and the other 1.5-T MRI using an endorectal coil. T2-weighted MR images at 3.0 and 1.5 T were analyzed in consensus by 2 radiologists, and their staging accuracy was compared with histology. Artifact and overall image quality were compared at both 3.0 and 1.5 T. Accuracy for T3 stage at 3.0 and 1.5 T were 72% (39/54) and 70% (38/54), respectively (P > 0.05). The 3.0-T MRI had a lower incidence of MR artifacts than the 1.5-T MRI (P < 0.05). However, overall imaging quality at both 3.0 and 1.5 T had no significant difference (P > 0.05). The 3.0-T phased-array MRI is equivalent to the 1.5-T endorectal MRI in evaluating local staging accuracy for prostate cancer without significant loss of imaging quality.Keywords
This publication has 20 references indexed in Scilit:
- Comparative Evaluation Between External Phased Array Coil at 3 T and Endorectal Coil at 1.5 TJournal of Computer Assisted Tomography, 2006
- Prostate Cancer: Local Staging at 3-T Endorectal MR Imaging—Early ExperienceRadiology, 2006
- MRI of Prostate Cancer at 1.5 and 3.0 T: Comparison of Image Quality in Tumor Detection and StagingAmerican Journal of Roentgenology, 2005
- MR imaging of the prostate at 3 teslaAcademic Radiology, 2004
- Combination of signals from array coils using image‐based estimation of coil sensitivity profilesMagnetic Resonance in Medicine, 2002
- Magnetic Resonance Imaging of Prostate CancerTopics in Magnetic Resonance Imaging, 1995
- Carcinoma of the prostate gland: MR imaging with pelvic phased-array coils versus integrated endorectal--pelvic phased-array coils.Radiology, 1994
- Prostate carcinoma: assessment of diagnostic criteria for capsular penetration on endorectal coil MR images.Radiology, 1994
- Staging of prostate cancer: results of Radiology Diagnostic Oncology Group project comparison of three MR imaging techniques.Radiology, 1994
- A review of normal tissue hydrogen NMR relaxation times and relaxation mechanisms from 1–100 MHz: Dependence on tissue type, NMR frequency, temperature, species, excision, and ageMedical Physics, 1984