title: The value of intravesical echography combined with double-surface coil magnetic resonance imaging in staging bladder cancer.
abstract: Correct staging of bladder tumours is essential for planning the best therapeutic strategy and is therefore directly related to the prognosis. In this study of 15 patients with bladder cancer, a new method using magnetic resonance imaging (MRI) with a newly developed double-surface coil was tested for bladder cancer staging and compared with other existing techniques. Ultrasonography produced 2 cases of overstaging and 2 of understaging. This was due to the inability of this method to evaluate muscular infiltration accurately. All superficial bladder tumours were staged correctly with ultrasound with the exception of 1 case that was overstaged because of superficial tumour calcification. Double-surface coil MRI correctly staged all infiltrating tumours. Two small superficial tumours were missed by MRI, while another superficial tumour was overstaged. It is suggested that double-surface coil MRI and intravesical ultrasonography are good complementary examinations in the pre-operative staging of bladder tumours. Larger studies are necessary to prove the reliability of this conclusion.
authors.affiliation: Department of Urology, University Hospital, Nijmegen, The Netherlands.
authors.forename: A J
authors.initials: AJ
authors.lastname: Hendrikx
authors.forename: J O
authors.initials: JO
authors.lastname: Barentz
authors.forename: W A
authors.initials: WA
authors.lastname: vd Stappen
authors.forename: F M
authors.initials: FM
authors.lastname: Debruyne
authors.forename: S H
authors.initials: SH
authors.lastname: Ruijs
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008207:Lymphatic Metastasis; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging / Q000379:methods*; D011379:Prognosis; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography; D001743:Urinary Bladder / Q000473:pathology; D001749:Urinary Bladder Neoplasms / Q000473:pathology*