Clinical stage T1c prostate cancer: evaluation with endorectal MR imaging and MR spectroscopic imaging
نویسندگان
چکیده
منابع مشابه
Endorectal MR Imaging and Proton Spectroscopy for Preoperative Evaluation of Clinical T1c Prostate Cancer
Introduction/Background With serum prostate specific antigen (PSA) screening, clinical stage T1c prostate cancer (defined as nonpalpable prostate cancer diagnosed by needle biopsy only, frequently due to an elevated PSA) has become the most commonly diagnosed prostate cancer. However, clinical stage T1c cancers are a heterogenous group, consisting of both clinically insignificant cancers, and c...
متن کاملProstate cancer localization with dynamic contrast-enhanced MR imaging and proton MR spectroscopic imaging.
PURPOSE To prospectively determine the accuracies of T2-weighted magnetic resonance (MR) imaging, dynamic contrast material-enhanced MR imaging, and quantitative three-dimensional (3D) proton MR spectroscopic imaging of the entire prostate for prostate cancer localization, with whole-mount histopathologic section findings as the reference standard. MATERIALS AND METHODS This study was approve...
متن کاملOrgan-confined prostate cancer: effect of prior transrectal biopsy on endorectal MRI and MR spectroscopic imaging.
OBJECTIVE Our aim was to determine the effect of prior transrectal biopsy on endorectal MRI and MR spectroscopic imaging findings in patients with organ-confined prostate cancer. MATERIALS AND METHODS Endorectal MRI and MR spectroscopic imaging were performed in 43 patients with biopsy-proven prostate cancer before radical prostatectomy confirming organ-confined disease. For each sextant, two...
متن کاملDiagnostic Performance of 1.5 Tesla Endorectal MR Imaging and MR Spectroscopic Imaging for the Detection of Locally Recurrent Prostate Cancer after External Beam Radiation Therapy
INTRODUCTION: recurrent disease after external beam radiotherapy is suspected after biochemical failure (rising PSA) and may be local, systemic, or both. Transrectal ultrasound guided biopsy is the standard of care for the detection of local recurrence, but is invasive and may miss tumors since only a small fraction of the gland is sampled. Although endorectal T2-weighted MR imaging has emerged...
متن کاملFast MR Spectroscopic Imaging
MR spectroscopic imaging (MRSI) has become widely available as a research tool for mapping tissue metabolic status. Clinical research applications have been limited by intrinsically low sensitivity and by time-consuming phase encoding techniques that are used with conventional MRSI. The long encoding times limit volume coverage, introduce motion sensitivity and tax patient tolerance. The increa...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International braz j urol
سال: 2010
ISSN: 1677-5538
DOI: 10.1590/s1677-55382010000100018