MR imaging of bladder neoplasms: Correlation with pathologic staging
- 1 December 1990
- journal article
- research article
- Published by Springer Nature in Urologic Radiology
- Vol. 12 (1), 27-33
- https://doi.org/10.1007/bf02923961
Abstract
This retrospective study describes the accuracy of magnetic resonance (MR) imaging in determination of local disease extent in 34 examinations performed for evaluation of primary or recurrent bladder carcinoma. The 34 examinations were carried out in 29 patients (17 men, 12 women, aged 34–89 years). All studies were followed within 30 days by surgical and pathologic evaluation. Images were interpreted by two radiologists unaware of clinical or pathologic findings. MR imaging staging conformed to the TNM system of the International Union Against Cancer (IUAC). Pathologic evaluation showed bladder neoplasms in all cases; three patients’ pathologic specimens contained two or more histologic types of tumors. MR imaging staging of the depth of tumor invasion was correct in 85% of examinations. Sensitivity of MR imaging for detection of deep muscle invasion was 97%, specificity 83%, and accuracy 94%. Sensitivity of MR imaging for detection of extravesical tumor extension was 95%, specificity 100%, and accuracy 97%. Sensitivity for detection of pelvic lymph node metastases was 50%, specificity 100%, and accuracy 82%. Our population included many patients with locally advanced disease. This pattern reflects standards of clinical practice by which superficial lesions are staged and resected endoscopically, and deeply invasive tumors are imaged prior to radical surgery.Keywords
This publication has 9 references indexed in Scilit:
- MR staging of bladder carcinoma: correlation with pathologic findings.Radiology, 1988
- Carcinoma of the urinary bladder: MR imaging with a double surface coilAmerican Journal of Roentgenology, 1988
- MR Imaging of Urinary Bladder NeoplasmsJournal of Computer Assisted Tomography, 1988
- Primary bladder carcinoma: evaluation with MR imaging.Radiology, 1987
- Staging of bladder carcinoma: MRI-CT-surgical correlationAmerican Journal of Roentgenology, 1986
- Urinary bladder MR imaging. Part II. Neoplasm.Radiology, 1985
- The role of CT in demonstrating perivesical tumor growth in the preoperative staging of carcinoma of the urinary bladder.Radiology, 1983
- Management of Invasive Bladder Cancer: A Meticulous Pelvic Node Dissection Can Make a DifferenceJournal of Urology, 1982
- The role of computed tomography in the staging of bladder cancerClinical Radiology, 1978