Magnetic resonance imaging of urinary bladder carcinoma: Tumor staging and gadolinium contrast-enhanced imaging

Dynamic MRI of Bladder Cancer: Evaluation of Staging Accuracy

“…Transurethral resection before MRI has been suggested as a possible cause of overstaging bladder carcinoma [19], because the differentiation between acute edema or hyperemia due to transurethral resection and tumor is stated to be difficult, especially immediately after transurethral resection [12,15,[20][21][22][23]. The value of transurethral resection is to confirm the histology and to stage the tumor.…”

Fast dynamic gadolinium-enhanced MR imaging of urinary bladder and prostate cancer

“…Recently, several investigators have described the use of Gdenhanced MR imaging for staging urinary bladder cancer (16,(23)(24)(25)(26). With the use of IV Gd-contrast, visualization of small tumors improved (16,(24)(25)(26), and furthermore, an increase in accuracy of local staging was reported (23,26). The best staging results with enhanced MR imaging were obtained with fast T1-weighted sequences (27).…”

Staging urinary bladder cancer after transurethral biopsy: value of fast dynamic contrast-enhanced MR imaging.

“…Although MR imaging is better than CT for staging urinary bladder cancer, CT is more commonly used in most centers be cause of its greater availability and of the greater familiarity with this tech nique. Recently, several authors have described the use of gadolinium-en hanced MR imaging for staging uri nary bladder cancer (10,(11)(12)(13)(14). With intravenously administered gadopentetate dimeglumine, visualization of small tumors improved (10,(12)(13)(14) and increased accuracy of local staging was reported (11,14).…”

“…Recently, several authors have described the use of gadolinium-en hanced MR imaging for staging uri nary bladder cancer (10,(11)(12)(13)(14). With intravenously administered gadopentetate dimeglumine, visualization of small tumors improved (10,(12)(13)(14) and increased accuracy of local staging was reported (11,14). The best stag ing results w ith contrast materialenhanced MR were obtained with fast Tl-w eighted imaging (9).…”